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HP LaserJet MFP M433, M436, M437, M439, M440, M442, M443, M42523,
M42623 - Control Panel Messages Document (CPMD)HP LaserJet MFP
M440, M442, M443
HP LaserJet MFP M42523, M42525
HP LaserJet MFP M42623, M42625
www.hp.com/support/ljM433MFP
www.hp.com/support/ljM436MFP
www.hp.com/support/ljM437MFP
www.hp.com/support/ljM438MFP
www.hp.com/support/ljM439MFP
www.hp.com/support/ljM440MFP
www.hp.com/support/ljM442MFP
www.hp.com/support/ljM443MFP
www.hp.com/support/ljM42523MFP
www.hp.com/support/ljM42525MFP
www.hp.com/support/ljM42623MFP
www.hp.com/support/ljM42625MFP
HP LaserJet MFP M433, M436, M437, M439, M440, M442, M443, M42523,
M42623 - Control Panel Messages Document (CPMD)
SUMMARY
Legal information Copyright and License
© Copyright 2021 HP Development Company, L.P.
Reproduction, adaptation, or translation without prior written
permission is prohibited, except as allowed under the copyright
laws.
The information contained herein is subject to change without
notice.
The only warranties for HP products and services are set forth in
the express warranty statements accompanying such products and
services. Nothing herein should be construed as constituting an
additional warranty. HP shall not be liable for technical or
editorial errors or omissions contained herein.
Edition 1.2, 10/2021
Trademark Credits
Adobe®, Adobe Photoshop®, Acrobat®, and PostScript® are trademarks
of Adobe Systems Incorporated.
Apple and the Apple logo are trademarks of Apple Inc., registered
in the U.S. and other countries.
macOS is a trademark of Apple Inc., registered in the U.S. and
other countries.
AirPrint is a trademark of Apple Inc., registered in the U.S. and
other countries.
Google™ is a trademark of Google Inc.
Microsoft®, Windows®, and Windows Server® are U.S. registered
trademarks of Microsoft Corporation.
UNIX® is a registered trademark of The Open Group.
Table of contents
Error codes
..............................................................................................................................................................................................4
WISE - How to access and use
.............................................................................................................................................................6
Accessing WISE
..............................................................................................................................................................................6
Using WISE to search for error
codes.........................................................................................................................................9
Using WISE to access repair and replace videos for
FRUs....................................................................................................
11
[Plain]
paper.......................................................................................................................................................................
17
C3-XXXX error
messages...................................................................................................................................................................
55
C9-XXXX error
messages...................................................................................................................................................................
85 C9-2210, C9-2120 Prepare TR. Roller / Prepare with new transfer
roller........................................................................
85 C9-2220 Error: #C9-2220 / TR Failure: #C9-2220. Install TR
roller again
.......................................................................
86
M1-XXXX error
messages..................................................................................................................................................................
96 M1-1110 Paper jam in tray 2
...................................................................................................................................................
96 M1–1610 Paper jam in MP tray 1
............................................................................................................................................
99 M1-5112, M1-5113 Paper empty in tray 2 / Paper is empty in tray
2. Load
paper......................................................101
M1–5120 All Trays Empty / Paper is empty in all trays. Load paper
...............................................................................102
M1-5610, Paper Normal in tray 1
.........................................................................................................................................102
M1-5612 Paper empty in tray 1 / Paper is empty in tray 1. Load
paper.........................................................................103
M2-XXXX error
messages................................................................................................................................................................104
M2-1110, M2-2210 Paper jam inside of
machine..............................................................................................................104
S3-XXXX error
messages.................................................................................................................................................................112
S3-3211
....................................................................................................................................................................................112
S3-3122 Scanner Locked / Scanner is locked. Press Stop button
...................................................................................113
U2-XXXX error messages
................................................................................................................................................................117
U2-1111, U2-1112, U2-1113, U2-1114 LSU failure errors
.............................................................................................117
scanner. Remove jam
.....................................................................................................................................................119
U3-3411, U3-3413, U3-3414 Original paper jam / Original paper jam
inside of scanner. Remove jam ..................127 U3-3511,
U3-3513, U3-3514 Original paper jam / Original paper jam inside of
scanner. Remove jam ..................133 U3-3711, U3-3713, U3-3714
Original paper jam / Original paper jam inside of scanner. Remove
jam ..................139
iv
U3–4210 Scanner door open / Top door of scanner is open. Close the
door
................................................................145
Index.............................................................................................................................................................................................................148
v
The following is the last time this document was updated:
Last update: October 20, 2021
Document last updated 1
Table 2-1 Content format types
Format Document title example Recommended use
Browser-based [Product] - Control Panel Message Document
(CPMD)
Use when support portals are accessible for up-to-date
information
PDF [Product] - Control Panel Message Document (CPMD) PDF
Use when support portals are NOT accessible at time of
service
Use when a printable document is needed
NOTE: Refer to the printer service manual for removal and
replacement procedures.
NOTE: For current information, use the browser-based format.
2 Chapter 2 About this document
Control-panel message types3
The control-panel messages and error code entries indicate the
current product status or situations that might require
action.
NOTE: The Error Information Report provides more detailed
information on the error and does not appear on the control-panel
display.
To print and view the Error Information Report perform the
following:
Enter Tech Mode.
Select Information T
Select Print?
Then touchYes
A control-panel message displays temporarily and might require the
user to acknowledge the message by touching the OK button to resume
printing or by touching the Stop button to cancel the job. With
certain messages, the job might not finish printing or the print
quality might be affected. If the message is related to printing
and the auto-continue feature is on, the product will attempt to
resume printing after the message has appeared for 10 seconds
without acknowledgment.
For some messages, restarting the product might fix the problem. If
a critical error persists, the product might require service.
Control-panel message types 3
4
Learn how to troubleshoot error messages.
Error codes Error codes and control-panel messages display on the
printer control panel to indicate the current printer status or
situations that might require action. Error codes are numerical, or
alphanumerical, and have a set structure with six characters
(example: A1-xxxx).
The first two characters are numeric and represent the system
component that is causing the error. For example, in error code
A1-1211, A1 = Motor for these printers.
The remaining four digits further define the error.
The CPMD is a comprehensive list of error codes, diagnostic and
troubleshooting steps to clear or resolve the error, and other
helpful information such as service mode pins and part
numbers.
The CPMD is continually updated and republished with the latest
information for the following error codes.
Table 4-1 ERROR Codes: The first two characters
Error code System Component System Error Description
11-2Txx Tray- Paper Tray X paper mismatch
A1-xxxx Motors Motor failure
A3-xxxx Sensors (non-paper path) Temp or humidity sensor
error
C1-xxxx Toner cartridge Toner cartridge relate error
C3-xxxx Drum unit Drum unit related error
C5-xxxx ITB Unit (Color printer) or Transfer roller (Mono
printers)
ITB Unit or Transfer roller life message
C6-xxxx Fuser unit Fuser unit either not installed, wrong fuser or
has been replaced
C7-xxxx Waste toner Waste toner container error
C8-xxxx Developer Developer unit error
C9-xxxx Transfer roller Transfer roller error
4 Chapter 4 Error -code and control-panel-message troubleshooting
overview
Table 4-1 ERROR Codes: The first two characters (continued)
Error code System Component System Error Description
H1-xxxx Optional tray Optional paper tray error
H2-xxxx Inner finisher Miscellaneous error including general and
misprint or mismatch errors typically involving (but not limited
to) the fuser, the laser scanner, or the paper path
Mx-xxxx Paper Path/Paper Tray Paper path or paper tray sensor error
(This includes tray empty, tray not installed and bin full
Sx-xxxx System System error, Clock, Video, HDD MSOK, Supply
checking
U1-xxxx Fuser error Fuser error (Temp, voltage, or pressure
control)
U2-xxxx Laser/Scanner Laser/scanner error
U3-xxxx Document feeder Document feeder error (Jams, loading or
open)
Error codes 5
How to search for printer documentation5
The CPMD, error codes, and other support documentation for each
printer is found on the internal HP portals.
These portals are on WISE for Channel (please see Accessing WISE
for HP channel partners on page 6 below for instructions on how to
navigate to the site) and WISE . WISE for Channel is available to
HP channel partners and WISE is available to call agents, service
technicians, and other HP internal users. The level of detail
available will depend on your access credentials. To learn how to
find support content in WISE, watch the video here.
WISE - How to access and use Learn how to access and use Web-based
Interactive Search Engines (WISE) to locate available support
information. WISE is a repository of technical support
documentation including service manuals, user guides, videos, and
general support information.
Accessing WISE Learn how to access Web-based Interactive Search
Engines (WISE) if you are an HP channel partner or an internal HP
user.
Accessing WISE for HP channel partners Learn how to access WISE if
you are an HP Channel Partner.
NOTE: If this is your first visit to the HP Partner First Portal,
you will be asked to create an account. Follow the setup directions
using your HP Partner credentials.
1. Open the HP Partner First Portal located at
https://partner.hp.com.
6 Chapter 5 How to search for printer documentation
3. Select Technical Documentation.
Accessing WISE for HP channel partners 7
Play the video:
View a video of how to access WISE (HP channel partners)
Accessing WISE for internal HP users Learn how to access WISE if
you are an internal HP user.
1. Open one of the Web-based Interactive Search Engines (WISE) URLs
listed below.
2. Select Commercial from the drop-down menu.
3. You will be taken to the WISE homepage.
AMS
https://support.hp.com/wise/home/ams-en
https://support.hp.com/wise/home/ams-es
https://support.hp.com/wise/home/ams-pt
https://support.hp.com/wise/home/ams-fr
APJ
https://support.hp.com/wise/home/apj-en
https://support.hp.com/wise/home/apj-ja
https://support.hp.com/wise/home/apj-ko
https://support.hp.com/wise/home/apj-zh-Hans
https://support.hp.com/wise/home/apj-zh-Hant
https://support.hp.com/wise/home/apj-th
View a video of how access WISE (internal HP users)
Using WISE to search for error codes Learn how to use WISE to look
up error codes.
NOTE: The model used in the instructional videos is an example. The
same steps apply to all printer models.
You will need the printer type (e.g. HP LaserJet), model number
(e.g. M607), and bundle option (e.g. dn, dh, z).
Search for error codes using the lookup widget Learn how to search
for a specific error code using the WISE Error Code Lookup
widget.
1. Select Products in the navigation bar of the WISE portal home
page.
2. Using the type, model number and bundle option of the printer to
be repaired, select HP Printers > Type of Printer > Model
Group > Model Number > Bundle Option > Product Number, and
then select Launch Product Detail Page. The PDP page will
open.
Using WISE to search for error codes 9
4. Select the desired topic from the search results.
Search for error codes from the WISE home page Learn how to search
for a specific error code from the WISE home page.
10 Chapter 5 How to search for printer documentation
1. Enter the model number in the search field on the WISE home
page. The search is predictive, and a drop-down menu will appear
with available selections.
NOTE: Selecting the series item from the drop-down list is
recommended for the most accurate search return.
2. Enter the error code in the search field.
3. Select the desired topic from the search results.
Using WISE to access repair and replace videos for FRUs Learn how
to use WISE to access repair and replace videos for FRUs.
Using WISE to access repair and replace videos for FRUs 11
NOTE: The model used in the instructional videos is an example. The
same steps apply to all printer models.
You will need the printer type (e.g. HP LaserJet), model number
(e.g. M607), and bundle option (e.g. dn, dh, z).
Search for a printer's Product Detail Page (PDP) Learn how to
search WISE for product specific information. Quickly review the
steps and then play the video.
1. Select Products in the navigation bar of the WISE portal home
page.
2. Using the type, model number and bundle option of the printer to
be repaired, select HP Printers > Type of Printer > Model
Group > Model Number > Bundle Option > Product Number, and
then select Launch Product Detail Page. The PDP page will
open.
3. Select the link to Videos in the Other Content menu at the
bottom-right of the screen.
12 Chapter 5 How to search for printer documentation
4. Select the desired video from the list of videos.
Play the video:
View a video of how to search for the printer's Product Detail Page
(PDP)
Perform a model number search using the search function Learn how
to search WISE using the model number. Quickly review the steps and
then play the video.
1. Enter the model number in the search field on the WISE home
page. The search is predictive, and a drop-down menu will appear
with available selections.
NOTE: Selecting the series item from the drop-down list is
recommended for the most accurate search return.
2. Click the search icon to the right.
Perform a model number search using the search function 13
3. To refine the search results, select the radio button labeled
video in the upper-right portion of the screen.
TIP: To refine video search results, append a part name to the
model detail shown in the search bar. For example, adding the word
fuser to the detail in the search bar will return videos related to
repair and replacement of the fuser.
Play the video:
View a video of how to perform a model number search
14 Chapter 5 How to search for printer documentation
Service mode PIN numbers:
To enter tech mode:
Touch the following in sequence: Menu > # > 1 > 0 > 0
> 4 > 3 > 6 > 1 > 6 > Menu
When Tech Menu is displayed, touch OK.
Printer service information 15
Numerical control panel messages7
Use the following numerical error message troubleshooting to
resolve your issue.
11-XXXX error messages
11-2Txx Paper mismatch Tray X Mismatch paper size in tray X.
Paper in tray is not matched to the printer paper setting.
11-2T11 - Tray 2 paper mismatch
11-2T21 - Tray 3 paper mismatch
Recommended action for customers
1. If you want to print on the current paper, press "OK". If not,
select "X" and change the paper.
2. Ensure that the tray width guides are set to the correct paper
size being installed into the tray. The arrow on the guide should
line up exactly with the line connected to the paper size
designation. Ensure that the tray is not filled above the fill mark
on the tray.
1
3
2
16 Chapter 7 Numerical control panel messages
3. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. If you want to print on the current paper, press "OK". If not,
select "X" and change the paper.
2. Ensure that the tray width guides are set to the correct paper
size being installed into the tray. The arrow on the guide should
line up exactly with the line connected to the paper size
designation. Ensure that the tray is not filled above the fill mark
on the tray.
1
3
2
11-2T61 Paper mismatch Tray 1 Load [A4] [Plain] Continue Cancel X
or Load tray 1 with [Letter], [Plain] paper
Paper mismatch error in the MP Tray 1.
Paper in tray is not matched to the machine paper setting.
Recommended action for customers
1. If you want to print on the current paper, press "OK". If not,
select "X" and change the paper.
Recommended action for call-center agents and onsite technicians
17
2. Ensure that the tray guides on the MP Tray are set
correctly.
3. Ensure the paper type and size is set correctly for the
multipurpose tray 1.
To change the menu options, press the Menu button. On the display
screen, select System Setup > Paper Setup.
4. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. If you want to print on the current paper, press "OK". If not,
select "X" and change the paper.
2. Ensure that the tray guides on the MP Tray are set
correctly.
3. Ensure the paper type and size is set correctly for the
multipurpose tray 1.
To change the menu options, press the Menu button. On the display
screen, select System Setup > Paper Setup.
18 Chapter 7 Numerical control panel messages
A1-XXXX error messages
A1-1110 Motor Failure Main Motor Failure: #A1-1110. Turn off and
then on. Call for service if the problem persists.
Harness or main BLDC motor or main board is defective.
Recommended action for customers
1. Turn the printer off, and then on.
2. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
NOTE: The following task includes links to part-replacement
procedures for some parts. To obtain procedures for other parts, or
for missing part numbers, escalate the issue using the Standard
Support Process.
1. Turn the printer off, and then on.
2. If the error persists, turn the printer off. and remove the rear
cover.
3. Check the main motor.
a. Remove the rear cover.
b. Run test 100-0000, Main BLDC Motor.
c. Touch the following in sequence: Menu > # > 1 > 0 >
0 > 4 > 3 > 6 > 1 > 6 > Menu
d. When “Tech Menu” is displayed, press the OK button.
e. Open the following menus:
Diagnostics from top menu.
Engine Test Routines
f. Run test 100-0000, Main BLDC Motor. If the test fails, check if
the wire harness on the drive assembly and main board are connected
correctly.
A1-1110 Motor Failure 19
Figure 7-1 Main Motor
h. If the voltage is good, replace the main motor.
Part number: JC31-00145B
For instructions: HP LaserJet MFP M433, M436 - Removal: Main drive
motor
i. If the power is abnormal, check the 24V to chassis ground on the
main board PCA connector 8, pins 3, 5, and 7 from the SMPS.
Figure 7-2 LVPS connector 8
4. If the 24V is abnormal, disconnect the cable and test the
voltage on the cable connector from the LVPS. (24V ± 5%).
20 Chapter 7 Numerical control panel messages
M433a LVPS-SMPS part number: JC44-00090H
M436n LVPS-SMPS part number: JC44-00223A
ALL other models LVPS-SMPS part number: JC44-00223G
For instructions: HP LaserJet MFP M433, M436 - Removal: LVPS
board
6. If the voltage is good from the LVPS but not normal when plugged
into the connectors, replace the main board PCA.
Table 7-1 Part numbers
M433a JC92-02607K
M436n JC92-02607G
The motor related to toner supply has experienced a problem.
Recommended action for customers
1. Turn the printer off, and then on.
2. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
NOTE: The following task includes links to part-replacement
procedures for some parts. To obtain procedures for other parts, or
for missing part numbers, escalate the issue using the Standard
Support Process.
1. Turn the printer off, and then on.
2. If the error persists, open the front cover.
3. Check the toner reservoir for blockage. If it is blocked open
the path.
a. Remove the toner cartridge from the printer.
b. Remove the drum unit.
c. Check the toner path of toner and drum are blocked.
4. Check that the seal is removed on toner and cartridge
drum.
5. Enter the Tech Mode and check the toner supply motor.
NOTE: Before performing this task, ensure the toner cartridge and
imaging unit are removed. If not, toner will spill inside the
printer.
a. Touch the following in sequence: Menu > # > 1 > 0 >
0 > 4 > 3 > 6 > 1 > 6 > Menu
b. When “Tech Menu” is displayed, press the OK button.
c. Open the following menus:
Diagnostics
22 Chapter 7 Numerical control panel messages
Figure 7-3 Check voltage
f. If 24V is measured on the connector, replace the toner supply
motor.
Part number: JC31-00078A
6. If the 24V is not being supplied at the connector, check the
power from the LVPS.
a. If the power is abnormal, check the 24V to chassis ground on the
main board PCA connector 8, pins 3, 5, and 7 from the SMPS.
Figure 7-4 LVPS connector 8
b. If the 24V is abnormal, disconnect the cable and test the
voltage on the cable connector from the LVPS. (24V ± 5%).
Recommended action for call-center agents and onsite technicians
23
c. If the voltage from the SMPS board is abnormal, replace
it.
M433a LVPS-SMPS part number: JC44-00090H
M436n LVPS-SMPS part number: JC44-00223A
ALL other models LVPS-SMPS part number: JC44-00223G
For instructions: HP LaserJet MFP M433, M436 - Removal: LVPS
board
d. If the voltage is good from the LVPS but not normal when plugged
into the connectors, replace the main board PCA.
Table 7-2 Part numbers
M433a JC92-02607K
M436n JC92-02607G
A2-XXXX error messages
A2-1210 Error: #A2-1210 / Fan Failure Fan Failure: #A2-1210. Turn
off then on. Call for service if the problem persists.
Switching mode power supply (SMPS) fan error.
The fan does not operate or the fan signal is abnormal.
Recommended action for customers
1. Turn the printer off, and then on.
2. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
NOTE: The following task includes links to part-replacement
procedures for some parts. To obtain procedures for other parts, or
for missing part numbers, escalate the issue using the Standard
Support Process.
1. Turn the printer off, and then on.
2. Listen if the fan is operating correctly.
a. If the fan does not function, remove the rear cover.
b. Check if the corresponding fan connector on the fan and on the
HVPS are connected correctly.
c. If the connections are good, replace the SMPS fan.
Part number: JC31-00152B
Part number: JC44-00229A
For instructions: HP LaserJet MFP M433, M436 - Removal: HVPS
board
A2-2110 Error: #A2-2110 / Fan Failure Fuser Fan Failure: Error:
#A2-2110 / Fan Failure: #A2-2110. Turn off then on. Call for
service if the problem persists
Fuser fan does not operate.
Recommended action for customers
1. Turn the printer off, and then on.
2. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Turn the printer off, and then on.
A2-1210 Error: #A2-1210 / Fan Failure 25
3. Remove the rear cover.
4. Check if the fuser fan connector is connected to the main board
(connector 17) correctly.
Figure 7-5 Check connector 17
5. If the connection is OK, replace the fuser fan.
Part number: JC31-00160A
For instructions: HP LaserJet MFP M433, M436 - Removal: Fuser
fan
Figure 7-6 Fuser fan location
26 Chapter 7 Numerical control panel messages
A3-3311, A3-3312, A3-3320, A3-3411, A3-3412 Sensor error
Temperature/Humidity sensor is defective.
A3-3311, Error: #A3-3311 / Sensor Failure: #A3-3311. Turn off then
on. Call for service if the problem persists
A3-3312, Error: #A3-3312 / Sensor Failure: #A3-3312. Turn off then
on. Call for service if the problem persists
A3-3320, Not proper Room Temp / The room temperature is not
suitable for this set use. Please adjust room temperature
A3-3411, Error: #A3-3411 / Sensor Failure: #A3-3411. Turn off then
on. Call for service if the problem persists
A3-3412, Error: #A3-3412 / Sensor Failure: #A3-3412. Turn off then
on. Call for service if the problem persists
Recommended action for customers
1. Turn the printer off, and then on.
2. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Turn the printer off, and then on.
2. If the error persists, send an on-site technician to perform the
remaining steps.
a. Remove the left cover.
A3-3311, A3-3312, A3-3320, A3-3411, A3-3412 Sensor error 27
b. Measure the resistance value of the connector at both
ends.
If the values is not in 10KΩ ± 1% (@ 25 ), replace the
temp./humidity sensor.
Part number: JC32-00015A
For instructions: HP LaserJet MFP M433, M436 - Removal: Temperature
humidity sensor
c. If the sensor is normal, replace the main board PBA.
Table 7-3 Part numbers
M433a JC92-02607K
M436n JC92-02607G
Printer Model Main Board PBA Part number
M443nda 8AF72-60001
M42523n 7ZB25-60001
M42523dn 7ZB26-60001
M42525n 7ZB27-60001
M42525dn 7ZB28-60001
M42623n 8AF49-60001
M42623dn 8AF50-60001
M42625n 8AF51-60001
M42625dn 8AF52-60001
C1-1110 / C1-111A Toner remaining is 5 ~ 30% of its life.
The printer indicates when the toner supply level is low. Actual
cartridge life might vary. You do not need to replace the cartridge
at this time unless print quality is no longer acceptable. The
toner is expected to run short soon because the remaining toner is
reaching 0%.This error occurs every time that you try to use the
printer.
C1-1110, Prepare new toner / Prepare new toner cartridge
C1-111A, Shake toner cart. / Shake toner cartridge and then
install. Replace toner cartridge if the problem persists
Recommended action for customers
1. Check the life remaining of the toner cartridge.
a. Select Menu > System Setup > Maintenance > Supplies
Life on the control panel.
b. Select the option you want and press OK.
c. Press the Stop button to return to ready mode.
2. To shake the toner cartridge and redistribute the toner.
C1-1110 / C1-111A 29
3. Open front door
4. Remove toner cartridge
5. Shake the toner cartridge horizontally to distribute the toner
evenly inside the cartridge.
30 Chapter 7 Numerical control panel messages
6. Reinstall the toner cartridge.
7. Close the front door.
8. If the toner cartridge yield is expired, replace the toner
cartridge.
NOTE: After an HP supply has reached the very low threshold, the HP
Premium Protection Warranty ends and the customer is responsible
for replacing the supply.
Table 7-4 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
Item Description Cartridge number Part Number
High Yield Black Original LaserJet Toner Cartridge
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Rest of APJ (OA Channel)
HP 336X W1336X
1. Check the life remaining of the toner cartridge.
2. To shake the toner cartridge and redistribute the toner
3. Open front door
4. Remove toner cartridge
5. Shake the toner cartridge horizontally to distribute the toner
evenly inside the cartridge.
6. Reinstall the toner cartridge.
Recommended action for call-center agents and onsite technicians
33
7. Close the front door.
8. If the toner cartridge yield is expired, have the customer
purchase and replace the toner cartridge.
Table 7-5 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Rest of APJ (OA Channel)
HP 336X W1336X
34 Chapter 7 Numerical control panel messages
C1-1140 / C1-1160 / C1-1160 Toner error The toner cartridge is at
the end of its life.
The black toner cartridge is empty. The printer cannot draw toner
from the toner cartridge.
The remaining volume is 0% (cartridge lifespan surpassed). This
error occurs every time that you try to use the printer.
C1-1140, Replace new toner / End of life, Replace with new toner
cartridge
C1-1160, Replace new toner / Replace with new toner cartridge
C1-1170, Replace new toner / End of life, Replace with new toner
cartridge
Recommended action for customers
c. Install the new toner cartridge.
d. Close the front cover.
NOTE: After an HP supply has reached the very low threshold, the HP
Premium Protection Warranty ends and the customer is responsible
for replacing the supply.
Table 7-6 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
C1-1140 / C1-1160 / C1-1160 Toner error 35
Table 7-6 Part numbers (continued)
Item Description Cartridge number Part Number
Rest of APJ (OA Channel)
High Yield Black Original LaserJet Toner Cartridge
Rest of APJ (OA Channel)
HP 336X W1336X
Recommended action for call-center agents and onsite
technicians
Replace the toner cartridge.
c. Install a new toner cartridge.
Table 7-7 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Rest of APJ (OA Channel)
HP 336X W1336X
36 Chapter 7 Numerical control panel messages
NOTE: After an HP supply has reached the very low threshold, the HP
Premium Protection Warranty ends and the customer is responsible
for replacing the supply.
d. Close the front door.
C1-1313 / C1-1314 Toner error Shake toner cartridge and then
install.
Toner supply is inefficient or abnormal.
The toner supply in the toner cartridge is malfunctioning. The
toner sensor indicates that the toner in the development unit is
insufficient.
The toner sensor indicates that the toner in the development unit
is insufficient. There is no toner in the toner cartridge or the
toner supply line is blocked. A circuit fault such as a fault in
the toner supply motor or the toner sensor occurs.
C1-1313, Shake toner cart. / Shake toner cartridge and then
install. Call for service if the problem persists
C1-1314, Remove seal tape / Did not supply enough toner. Remove
seal tape of toner cartridge or shake it. Call for service if the
problem persists
Recommended action for customers
1. To shake the toner cartridge and redistribute the toner.
2. Open front door
3. Remove toner cartridge
4. Shake the toner cartridge horizontally to distribute the toner
evenly inside the cartridge.
5. Check if the seal tape is removed. If not, remove it.
38 Chapter 7 Numerical control panel messages
6. Reinstall the toner cartridge.
7. Close the front door.
8. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. To shake the toner cartridge and redistribute the toner.
Recommended action for call-center agents and onsite technicians
39
2. Open front door
3. Remove toner cartridge
4. Shake the toner cartridge horizontally to distribute the toner
evenly inside the cartridge.
40 Chapter 7 Numerical control panel messages
5. Check if the seal tape is removed. If not, remove it.
6. Reinstall the toner cartridge.
7. Close the front door.
8. If the error persists, send an on-site technician to perform the
remaining steps.
9. Test the toner drive motor.
a. Remove the rear cover.
Recommended action for call-center agents and onsite technicians
41
b. Touch the following in sequence: Menu > # > 1 > 0 >
0 > 4 > 3 > 6 > 1 > 6 > Menu
c. When “Tech Menu” is displayed, press the OK button.
d. Open the following menus:
Diagnostics
111–Toner
e. Run the toner drive motor test: 0030– Supply Mot K.
NOTE: Before performing this task, ensure the toner cartridge and
imaging unit are removed. If not, toner will spill inside the
printer.
If the test fails, replace the toner drive motor.
Part number: JC31-00078A
Table 7-8 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Rest of APJ (OA Channel)
HP 336X W1336X
42 Chapter 7 Numerical control panel messages
C1–1411 Toner Not Installed / Toner cartridge is not installed.
Install it The toner cartridge is not installed or is installed
incorrectly.
The toner cartridge is not installed. / The CRUM data is not
detected.
Recommended action for customers
1. Open the front cover. Check if the toner cartridge is
installed.
2. Remove and reinstall the toner cartridge.
3. If the error persists, check if the toner cartridge modular jack
is contaminated or deformed.
a. Remove the toner cartridge.
C1–1411 Toner Not Installed / Toner cartridge is not installed.
Install it 43
b. Check the module jack on the toner cartridge.
c. If it is damaged or deformed, replace the toner cartridge.
Table 7-9 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Rest of APJ (OA Channel)
HP 336X W1336X
44 Chapter 7 Numerical control panel messages
4. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
NOTE: The following task includes links to part-replacement
procedures for some parts. To obtain procedures for other parts, or
for missing part numbers, escalate the issue using the Standard
Support Process.
1. Open the front cover. Check if the toner cartridge is
installed.
2. Remove and reinstall the toner cartridge.
3. If the error persists, check if the toner cartridge modular jack
is contaminated or deformed.
a. Remove the toner cartridge.
Recommended action for call-center agents and onsite technicians
45
c. If it is damaged or deformed, replace the toner cartridge.
Table 7-10 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Rest of APJ (OA Channel)
HP 336X W1336X
46 Chapter 7 Numerical control panel messages
4. If the toner cartridge looks good, check the CRUM connector for
the toner cartridge inside the printer.
If the connector is not seated correctly remove the rear cover and
try to re-seat the connector.
If damaged, elevate the case using the Standard Support
Process.
5. If the connections are good, replace the toner cartridge.
Table 7-11 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Table 7-11 Part numbers (continued)
Item Description Cartridge number Part Number
High Yield Black Original LaserJet Toner Cartridge
Rest of APJ (OA Channel)
HP 336X W1336X
C1–1512 Toner Not Compatible / Toner cartridge is not compatible.
Check guide The toner cartridge is not compatible with the
printer.
Recommended action for customers
1. Open the front cover. Remove the toner cartridge.
2. Replace the toner cartridge with the correct toner cartridge for
the printer.
3. If a genuine HP supply is not installed, replace it with a new
HP supply.
Table 7-12 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Rest of APJ (OA Channel)
HP 336X W1336X
48 Chapter 7 Numerical control panel messages
4. If the toner cartridge is a genuine HP supply and the error
persists, contact your HP-authorized service or support provider,
or contact customer support at www.hp.com/go/contactHP.
support.
Recommended action for call-center agents and onsite
technicians
1. Open the front cover. Remove the toner cartridge.
2. Replace the toner cartridge with the correct toner cartridge for
the printer.
3. If a genuine HP supply is not installed, replace it with a new
HP supply.
Table 7-13 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Rest of APJ (OA Channel)
HP 336X W1336X
C1-1711 or C1-1712 Error The toner cartridge is not installed. /
The CRUM data is not detected.
C1-1711, Error: #C1-1711 / Toner Cart Failure: #C1-1711. Call for
service
C1-1712, Error: #C1-1712 / Toner Cart Failure: #C1-1712. Call for
service
Recommended action for call-center agents and onsite technicians
49
Recommended action for customers
1. Open the front cover. Check if the toner cartridge is
installed.
2. Remove and reinstall the toner cartridge.
3. If the error persists, check if the toner cartridge modular jack
is contaminated or deformed.
a. Remove the toner cartridge.
50 Chapter 7 Numerical control panel messages
b. Check the module jack on the toner cartridge.
c. If it is damaged or deformed, replace the toner cartridge.
Table 7-14 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Rest of APJ (OA Channel)
HP 336X W1336X
Recommended action for customers 51
4. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
NOTE: The following task includes links to part-replacement
procedures for some parts. To obtain procedures for other parts, or
for missing part numbers, escalate the issue using the Standard
Support Process.
1. Open the front cover. Check if the toner cartridge is
installed.
2. Remove and reinstall the toner cartridge.
3. If the error persists, check if the toner cartridge modular jack
is contaminated or deformed.
a. Remove the toner cartridge.
52 Chapter 7 Numerical control panel messages
c. If it is damaged or deformed, replace the toner cartridge.
Table 7-15 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Rest of APJ (OA Channel)
HP 336X W1336X
Recommended action for call-center agents and onsite technicians
53
4. If the toner cartridge looks good, check the CRUM connector for
the toner cartridge inside the printer.
If the connector is not seated correctly remove the rear cover and
try to re-seat the connector.
If damaged, elevate the case using the Standard Support
Process.
5. If the connections are good, replace the toner cartridge.
Table 7-16 Part numbers
Black Original LaserJet Toner Cartridge
China (IT Channel)
HP 333A W1333A
China (IT Channel)
HP 333X W1333X
China (OA Channel)
HP 334A W1334A
China (OA Channel)
HP 334X W1334X
Rest of AP and EMEA (IT Channel)
HP 335A W1335A
HP 335X W1335X
HP 336A W1336A
Table 7-16 Part numbers (continued)
Item Description Cartridge number Part Number
High Yield Black Original LaserJet Toner Cartridge
Rest of APJ (OA Channel)
HP 336X W1336X
C3-XXXX error messages
C3-1110 Prepare IMG. Unit / Prepare new imaging unit The drum unit
is approaching the end of its lifespan.
Imaging unit remained is 5 ~ 30% of its life.
Recommended action for call-center agents and onsite
technicians
1. The life of the drum unit will be or is expired. prepare a new
drum unit.
NOTE: The life of the Imaging Unit is approximately 80k
pages.
2. If the print quality is no longer acceptable replace the imaging
drum unit.
Part number: CF257A
3. Remove imaging drum unit from shipping bag and place it on a
clean flat surface.
C3-1110 Prepare IMG. Unit / Prepare new imaging unit 55
4. Loosen shipping tape from the bottom and both sides.
5. Remove orange shipping locks from imaging drum unit.
NOTE: There shipping locks on each side of the imaging drum
unit.
56 Chapter 7 Numerical control panel messages
6. Remove remaining shipping tape and pull protective sheet from
imaging drum unit.
CAUTION: Do not touch exposed drum roller surface.
Recommended action for call-center agents and onsite technicians
57
NOTE: Do not expose the imaging unit to light for more than a few
minutes.
7. Remove orange plug on back of imaging drum unit.
CAUTION: Once the plug is removed, the imaging drum unit must
remain level. Contents may spill out if the imaging drum unit is
tipped.
58 Chapter 7 Numerical control panel messages
8. Open the front and right doors.
CAUTION: Leave front and right door open until all installation
steps are complete.
9. With right and front doors fully open, carefully lift imaging
unit into position, so the bottom of imaging drum unit aligns with
the raised alignment rails inside printer cabinet as shown
CAUTION: Do not touch exposed drum roller surface.
Recommended action for call-center agents and onsite technicians
59
10. Install imaging drum unit and ensure it is fully seated.
NOTE: If imaging unit binds or does not slide easily into cabinet,
verify the right door is fully open, realign imaging drum unit, and
install.
11. Route the electrical cable into holder as shown and plug in the
connector.
60 Chapter 7 Numerical control panel messages
CAUTION: Make sure the connector is fully seated in the
socket.
12. Install two screws as shown.
Recommended action for call-center agents and onsite technicians
61
13. Ensure electrical connector is plugged in and fully seated.
Ensure the two screws are securely installed.
14. Close the front and right doors.
C3-1140 or C3-1170 Imaging unit error The imaging unit has almost
reached the end of life.
The drum/imaging unit is past its usable life and needs to be
replaced. Replace with new imaging unit
C3-1140, Replace IMG. Unit / End of life, Replace with new imaging
unit
C3-1170, Replace IMG. Unit / End of life, Replace with new imaging
unit
Recommended action for call-center agents and onsite
technicians
1. Check the life remaining of the imaging drum unit.
NOTE: The life of the Imaging Unit is approximately 80k
pages.
2. If its life is at the end, have the customer purchase a new
imaging drum unit
Part number: CF257A, CF257-67902
62 Chapter 7 Numerical control panel messages
3. Remove imaging drum unit from shipping bag and place it on a
clean flat surface.
4. Loosen shipping tape from the bottom and both sides.
Recommended action for call-center agents and onsite technicians
63
5. Remove orange shipping locks from imaging drum unit.
NOTE: There shipping locks on each side of the imaging drum
unit.
64 Chapter 7 Numerical control panel messages
6. Remove remaining shipping tape and pull protective sheet from
imaging drum unit.
CAUTION: Do not touch exposed drum roller surface.
NOTE: Do not expose the imaging unit to light for more than a few
minutes.
Recommended action for call-center agents and onsite technicians
65
7. Remove orange plug on back of imaging drum unit.
CAUTION: Once the plug is removed, the imaging drum unit must
remain level. Contents may spill out if the imaging drum unit is
tipped.
8. Open the front and right doors.
CAUTION: Leave front and right door open until all installation
steps are complete.
66 Chapter 7 Numerical control panel messages
9. With right and front doors fully open, carefully lift imaging
unit into position, so the bottom of imaging drum unit aligns with
the raised alignment rails inside printer cabinet as shown
CAUTION: Do not touch exposed drum roller surface.
10. Install imaging drum unit and ensure it is fully seated.
NOTE: If imaging unit binds or does not slide easily into cabinet,
verify the right door is fully open, realign imaging drum unit, and
install.
Recommended action for call-center agents and onsite technicians
67
11. Route the electrical cable into holder as shown and plug in the
connector.
CAUTION: Make sure the connector is fully seated in the
socket.
68 Chapter 7 Numerical control panel messages
12. Install two screws as shown.
13. Ensure electrical connector is plugged in and fully seated.
Ensure the two screws are securely installed.
Recommended action for call-center agents and onsite technicians
69
14. Close the front and right doors.
C3-1312, C3-1411, C3-1414 The imaging unit is not installed. / The
CRUM data is not detected.
C3-1312, Error: #C3-1312 / Imaging Unit Failure: #C3-1312. Install
IMG. Unit
C3-1411, IMG. Not Installed / Imaging unit is not installed.
Install the unit
C3-1414, Error: #C3-1414 / Imaging Unit Failure: #C3-1414. Install
imaging unit again
Recommended action
1. Open the front cover. Check if the imaging unit is
installed.
2. Remove and reinstall the imaging unit.
3. If the error persists, check if the imaging drum unit connector
is contaminated or deformed.
If the connector is damaged, replace the imaging drum unit.
Part number:
4. If the error persists, replace the imaging drum unit.
Part number: CF257-67902
5. Remove imaging drum unit from shipping bag and place it on a
clean flat surface.
70 Chapter 7 Numerical control panel messages
6. Loosen shipping tape from the bottom and both sides.
7. Remove orange shipping locks from imaging drum unit.
NOTE: There shipping locks on each side of the imaging drum
unit.
Recommended action 71
8. Remove remaining shipping tape and pull protective sheet from
imaging drum unit.
CAUTION: Do not touch exposed drum roller surface.
72 Chapter 7 Numerical control panel messages
NOTE: Do not expose the imaging unit to light for more than a few
minutes.
9. Remove orange plug on back of imaging drum unit.
CAUTION: Once the plug is removed, the imaging drum unit must
remain level. Contents may spill out if the imaging drum unit is
tipped.
Recommended action 73
10. Open the front and right doors.
CAUTION: Leave front and right door open until all installation
steps are complete.
11. With right and front doors fully open, carefully lift imaging
unit into position, so the bottom of imaging drum unit aligns with
the raised alignment rails inside printer cabinet as shown
CAUTION: Do not touch exposed drum roller surface.
74 Chapter 7 Numerical control panel messages
12. Install imaging drum unit and ensure it is fully seated.
NOTE: If imaging unit binds or does not slide easily into cabinet,
verify the right door is fully open, realign imaging drum unit, and
install.
13. Route the electrical cable into holder as shown and plug in the
connector.
Recommended action 75
CAUTION: Make sure the connector is fully seated in the
socket.
14. Install two screws as shown.
76 Chapter 7 Numerical control panel messages
15. Ensure electrical connector is plugged in and fully seated.
Ensure the two screws are securely installed.
16. Close the front and right doors.
C3-1512 IMG. Not compatible / Imaging unit is not compatible. Check
guide Imaging unit is not installed. Install the unit.
The imaging unit has an invalid CRUM.
Recommended action
2. Remove the imaging drum unit.
3. Check the part number of the installed imaging drum unit. (HP
part numbers are and
Part numbers: CF257A, CF257-67902
For instructions: HP LaserJet MFP M433, M436 - Removal: Developer
unit
C3-1512 IMG. Not compatible / Imaging unit is not compatible. Check
guide 77
Part number: CF257A
For instructions: HP LaserJet MFP M433, M436 - Removal: Developer
unit
C3-1711, C3-1712 Imaging unit errors Imaging unit is not installed.
Install the unit.
The imaging/drum unit is not installed. / The data of CRUM is not
detected.
C3-1711, Error: #C3-1711 / Imaging Unit Failure: #C3-1711. Call for
service
C3-1712, Error: #C3-1712 / Imaging Unit Failure: #C3-1712. Call for
service
Recommended action
1. Open the front cover. Check if the imaging unit is
installed.
2. Remove and reinstall the imaging unit.
3. If the error persists, check if the imaging drum unit connector
is contaminated or deformed.
If the connector is damaged, replace the imaging drum unit.
Part number:
4. If the error persists, replace the imaging drum unit.
Part number: CF257-67902
5. Remove imaging drum unit from shipping bag and place it on a
clean flat surface.
78 Chapter 7 Numerical control panel messages
7. Remove orange shipping locks from imaging drum unit.
NOTE: There shipping locks on each side of the imaging drum
unit.
Recommended action 79
8. Remove remaining shipping tape and pull protective sheet from
imaging drum unit.
CAUTION: Do not touch exposed drum roller surface.
80 Chapter 7 Numerical control panel messages
NOTE: Do not expose the imaging unit to light for more than a few
minutes.
9. Remove orange plug on back of imaging drum unit.
CAUTION: Once the plug is removed, the imaging drum unit must
remain level. Contents may spill out if the imaging drum unit is
tipped.
Recommended action 81
10. Open the front and right doors.
CAUTION: Leave front and right door open until all installation
steps are complete.
11. With right and front doors fully open, carefully lift imaging
unit into position, so the bottom of imaging drum unit aligns with
the raised alignment rails inside printer cabinet as shown
CAUTION: Do not touch exposed drum roller surface.
82 Chapter 7 Numerical control panel messages
12. Install imaging drum unit and ensure it is fully seated.
NOTE: If imaging unit binds or does not slide easily into cabinet,
verify the right door is fully open, realign imaging drum unit, and
install.
13. Route the electrical cable into holder as shown and plug in the
connector.
Recommended action 83
CAUTION: Make sure the connector is fully seated in the
socket.
14. Install two screws as shown.
84 Chapter 7 Numerical control panel messages
15. Ensure electrical connector is plugged in and fully seated.
Ensure the two screws are securely installed.
16. Close the front and right doors.
C9-XXXX error messages
C9-2210, C9-2120 Prepare TR. Roller / Prepare with new transfer
roller Transfer roller is at the end of its life.
Replace with new transfer roller
Recommended action for customers
Replace the transfer roller.
a. Open the side cover.
C9-2210, C9-2120 Prepare TR. Roller / Prepare with new transfer
roller 85
b. Replace the transfer roller with a new one.
Part number: W7U01-67901
NOTE: After an HP supply has reached the very low threshold, the HP
Premium Protection Warranty ends and the customer is responsible
for replacing the supply.
c. Close the side cover.
C9-2220 Error: #C9-2220 / TR Failure: #C9-2220. Install TR roller
again Transfer roller is at the end of its life.
Recommended action for customers
Replace the transfer roller.
b. Replace the transfer roller with a new one.
Part number: W7U01-67901
NOTE: After an HP supply has reached the very low threshold, the HP
Premium Protection Warranty ends and the customer is responsible
for replacing the supply.
c. Close the side cover.
Recommended action for call-center agents and onsite
technicians
1. Replace the transfer roller.
a. Open the side cover.
b. Have the customer purchase a new transfer roller kit.
Part number: W7U01-67901
NOTE: After an HP supply has reached the very low threshold, the HP
Premium Protection Warranty ends and the customer is responsible
for replacing the supply.
For instructions: Removal and replacement Transfer roller
c. Close the side cover.
2. If the error persists, send an on-site technician to replace the
HVPS board
Part number: JC44-00229A
For instructions: HP LaserJet MFP M433, M436 - Removal: HVPS
board
H1-XXXX error messages
H1-1210 Jam in Tray 3 A paper jam occurred in tray 3.
86 Chapter 7 Numerical control panel messages
Recommended action for customers
2. Gently pull out any jammed paper.
Recommended action for customers 87
3. Close the lower-right jam cover.
4. Pull the tray completely out of the printer by pulling and
lifting it up slightly.
5. Remove any jammed or damaged sheets of paper. Verify that the
tray is not overfilled and that the paper guides are adjusted
correctly.
88 Chapter 7 Numerical control panel messages
6. With the tray out, check if the paper pickup roller is worn or
contaminated. Clean the roller the a water dampened lint free
cloth.
7. Open the right door.
8. Gently pull out any jammed paper.
1
2
Recommended action for customers 89
9. Close the right door.
10. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Open the lower-right jam cover.
90 Chapter 7 Numerical control panel messages
3. Close the lower-right jam cover.
4. Pull the tray completely out of the printer by pulling and
lifting it up slightly.
Recommended action for call-center agents and onsite technicians
91
5. Remove any jammed or damaged sheets of paper. Verify that the
tray is not overfilled and that the paper guides are adjusted
correctly.
6. With the tray out, check if the paper pickup roller is worn or
contaminated. Clean the roller the a water dampened lint free
cloth.
7. Open the right door.
92 Chapter 7 Numerical control panel messages
8. Gently pull out any jammed paper.
1
2
9. Close the right door.
10. If the error persists, send an on-site technician to replace
the pickup roller and friction pad kit
Part number: W7U01-67903
For instructions: HP LaserJet MFP M433, M436 - Removal: Pickup
roller and friction pad
H1-1220 Tray 3 cassette is pulled out.
Tray 3 is open. Close it
H1-1220 93
2. Turn the printer off, and then on.
3. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsute
technicians
1. Remove and insert tray 3 correctly.
2. If the message persists, send an on-site technician to perform
the remaining steps.
a. Replace the tray 3 photo sensor.
Part number: 0604-01393
b. If the message persists, replace the PBA board for the secondary
cassette feeder
Part number: JC92-02511C
Recommended action for customers
1. Turn the printer off, and then on.
2. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Turn the print off, and then on.
2. If the error persists, send an on-site technician to perform the
remaining steps.
3. Disassemble the SCF unit.
4. Check if the interface cable on SCF main board is connected
correctly.
5. If the error persists, replace the PBA Board, Secondary Cassette
Feed.
Part number: JC92-02511C
For instructions: HP LaserJet MFP M433, M436 - Removal: SCF
(optional Tray 3)
6. Install the copier on the SCF unit.
H1-1352 / H1-1354 Paper empty in tray 3 / Paper is empty in tray 3.
Load paper Paper is low in Tray 3. Load paper.
Paper in the tray is less than 10% of specification. / The photo
sensor is not functioning correctly.
Recommended action for customers
2. Ensure that the tray is loaded and installed correctly.
3. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Open the tray 3 and load paper.
2. If the message persists, send an on-site technician to replace
the SCF Cassette Tray.
Part number: JC90-01226B
For instructions: HP LaserJet MFP M433, M436 - Removal: SCF
(optional Tray 3)
H1-1230 Input System Failure: #H1-1230. Check tray 3 connection
95
M1-XXXX error messages
M1-1110 Paper jam in tray 2 Paper jam in Tray 2. Please remove the
paper
A paper jam has occurred in Tray 2.
Recommended action for customers
1. Pull the tray completely out of the printer by pulling and
lifting it up slightly.
2. Remove any jammed or damaged sheets of paper. Verify that the
tray is not overfilled and that the paper guides are adjusted
correctly.
96 Chapter 7 Numerical control panel messages
3. Gently remove any paper from the feed rollers inside the
printer. First pull the paper to the left to release it, and then
pull it forward to remove it.
4. With the tray out, check and clean the paper rollers in the tray
with a damp lint free cloth.
5. Install and close the tray.
Recommended action for customers 97
6. Open the right door.
7. Gently pull out any jammed paper.
1
2
8. Close the right door.
9. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
98 Chapter 7 Numerical control panel messages
Recommended action for call-center agents and onsite
technicians
1. Open the right side cover and remove any jammed paper
found.
NOTE: If need use the customer troubleshooting steps to check for
paper jams.
2. Check if there is any obstruction or paper jammed inside the
printer. If there is, remove it.
3. Open tray 2 and remove any jammed paper.
4. If the jam error occurs frequently, send an on-site technician
to replace the pickup roller and friction pad kit.
Part number: W7U01-67903
For instructions: HP LaserJet MFP M433, M436 - Removal: Pickup
roller and friction pad
M1–1610 Paper jam in MP tray 1 Paper jam in MP tray 1. Please
remove the paper
A paper jam has occurred in tray 1.
Recommended action for customers
1. If jammed paper is visible in Tray 1, clear the jam by gently
pulling the paper straight out.
2. Open the right door.
Recommended action for call-center agents and onsite technicians
99
1
2
4. Close the right door.
5. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Remove any jammed paper from the MP tray 1.
2. Open the right door. Remove any jammed paper found.
NOTE: If needed use the customer steps for this error to check for
and remove paper jams.
3. Ensure that the tray width guides are set to the correct paper
size being installed into the tray. The arrow on the guide should
line up exactly with the line connected to the paper size
designation. Ensure that the tray is not filled above the fill mark
on the tray.
4. If the jam error occurs frequently, send an on-site technician
to replace the pickup roller and Friction Pad Kit.
Part number: W7U01-67903
For instructions: HP LaserJet MFP M433, M436 - Removal: MP tray 1
pickup roller and friction pad
100 Chapter 7 Numerical control panel messages
Part number: JC66-03983A
For instructions: HP LaserJet MFP M433, M436 - Removal: MP tray 1
clutch
M1-5112, M1-5113 Paper empty in tray 2 / Paper is empty in tray 2.
Load paper Paper is low in Tray 2. Load paper. Paper is empty in
Tray 2. Load paper.
Paper in the tray 2 is less than 10%. / The photo sensor is
defective.
Recommended action for customers
2. Ensure that the tray is loaded and installed correctly.
3. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Open tray 2. Load paper in the tray and insert tray 2.
2. If the message persists, send an on-site technician to perform
the remaining steps.
a. Remove the toner cartridge and imaging unit.
b. Remove the tray 2 and stand the printer on its left side to see
the bottom.
NOTE: Before doing this, ensure the toner cartridge and imaging
unit are removed. If not, toner will pour inside the printer.
M1-5112, M1-5113 Paper empty in tray 2 / Paper is empty in tray 2.
Load paper 101
Call-out 1: Empty Actuator
Call-out 2: Empty Sensor
Part number: 0604-001393
For instructions: HP LaserJet MFP M433, M436 - Removal: Paper
empty, registration, MP sensor
f. Check if the Empty Actuator is assembled correctly. If the
actuator is defective, replace it.
Part number: JC61-01350A)
For instructions: HP LaserJet MFP M433, M436 - Removal: Paper
empty, registration, MP sensor
M1–5120 All Trays Empty / Paper is empty in all trays. Load paper
Paper in the all tray is less than 10% of specification. / The
photo sensor is defective.
Recommended action for customers
2. Ensure that the tray is loaded and installed correctly.
3. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Load paper in the tray and insert tray.
2. Refer to “H1–1252, M1–5112, M1–5612” troubleshooting.
M1-5610, Paper Normal in tray 1 Paper on MP tray 1 is normal.
102 Chapter 7 Numerical control panel messages
Recommended action for call-center agents and onsite
technicians
This message shows the printer can print the page from tray 1
normally.
M1-5612 Paper empty in tray 1 / Paper is empty in tray 1. Load
paper Paper is empty in tray 1. Load paper.
Paper in the MP tray is empty. The photo sensor is defective.
Recommended action for customers
2. Ensure that the tray is loaded and installed correctly.
3. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Load paper in tray 1.
2. If the message persists, send an on-site technician to perform
the remaining steps.
a. Remove the toner cartridge and imaging unit.
b. Remove tray 2.
c. Stand the printer on its left side.
NOTE: Before doing this, ensure the toner cartridge and imaging
unit are removed. If not, toner will pour inside the printer.
d. Inspect and check the functionality of the tray 1 empty
sensor.
1
2
Recommended action for call-center agents and onsite technicians
103
Call-out 2: Tray 1 empty sensor
e. Check if the tray 1 empty sensor works normally. If needed,
replace it
Part number: 0604-001393
For instructions: HP LaserJet MFP M433, M436 - Removal: Paper
empty, registration, MP sensor
f. Check if the tray 1 empty actuator is assembled correctly. If
needed, replace it.
Part number: JC66-03969A
For instructions: HP LaserJet MFP M433, M436 - Removal: Paper
empty, registration, MP sensor
M2-XXXX error messages
M2-1110, M2-2210 Paper jam inside of machine. Paper jam inside of
machine. Please remove the paper
M2-1110, Jam inside machine
Recommended action for customers
104 Chapter 7 Numerical control panel messages
1
2
3. Open the fuser jam cover and remove the jammed paper.
CAUTION: The fuser area is hot. Take care when removing paper from
the printer.
1
2
4. Close the right door.
5. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Open the right door. Remove any jammed paper found..
Recommended action for call-center agents and onsite technicians
105
2. Check if there is any obstruction or paper jammed inside the
printer. If there is, remove the obstruction or jam.
NOTE: If need, use the customer steps for this error to clear the
jam.
3. Close the right door and allow the printer to clear the paper
path.
4. If the error persists, send an on-site technician to perform the
remaining steps.
a. From the control panel, enter Tech Mode and execute the main
motor tests.
b. Touch the following in sequence: Menu > # > 1 > 0 >
0 > 4 > 3 > 6 > 1 > 6 > Menu
c. Select Tech Menu and touch OK.
d. Select the following:Diagnostics > Engine > Engine Test
Routines > 100 – Motor > 0000 – Main BLDC & 0001 — Main
Slow
e. If the motor does not function correctly, turn the printer
off.
f. Remove the rear cover.
g. Check if the main motor cable is connected correctly. Reconnect
the cable.
h. If the connection is OK, replace the main motor.
Part number: Drive - JC31-00145B
For instructions: HP LaserJet MFP M433, M436 - Removal: Main drive
motor
i. Check if the registration sensor connector is connected
correctly.
j. Remove the toner cartridge and imaging unit.
k. Remove tray 2.
l. Stand the printer on its left side.
NOTE: Before doing this, ensure the toner cartridge and imaging
unit are removed. If not, toner will pour inside the printer.
m. Ensure the registration sensor is connected correctly and moves
freely.
1
Part number: 0604-001393
For instructions: HP LaserJet MFP M433, M436 - Removal: Paper
empty, registration, MP sensor
M3-XXXX error messages
M3–1110 Jam in exit area Paper jam in exit area. Please remove the
paper; Paper jam inside of machine. Please remove the paper
M3–1110 Jam in exit area 107
2. Open the jam guide and remove the jammed paper.
1
2
3. Open the fuser jam cover and remove the jammed paper.
CAUTION: The fuser area is hot. Take care when removing paper from
the printer.
1
2
4. Close the right door.
5. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Remove any jammed paper from the output tray.
2. Open the right door. Remove any jammed paper found..
3. Check if there is any obstruction or paper jammed inside the
printer. If there is, remove the obstruction or jam.
4. If the message persists, send an on-site technician to perform
the remaining steps.
a. Turn the printer off.
b. Remove the exit unit. If there are any defective parts, replace
the exit unit.
Part number: JC9-01221B
c. Check if the exit motor works normally.
Enter Tech Mode: Touch the following in sequence: Menu > # >
1 > 0 > 0 > 4 > 3 > 6 > 1 > 6 > Menu
When Tech Menu is displayed, touch OK.
Run tests, 0120 Exit Mot Slow, and 0132 Exit Bwd Slow.
Recommended action for call-center agents and onsite technicians
109
Part number: JC93-00452D
e. If the message continually displays, replace the fuser
unit.
Part number: JC91-01217A
For instructions: HP LaserJet MFP M433, M436 - Removal: Fuser
unit
S2-XXXX error messages
S2-3110 Waiting for low temp / Waiting delay time for lower fixing
temperature… The printer is stopped because the temperature of the
fuser unit is in abnormal status.
Recommended action
Please wait. This error will disappear.
S2-3321 Supplying Toner / Supplying and mixing toner to developer
unit. Please wait… Toner is being supplied to the developer
unit.
Recommended action
S2-3421 Calibrating density / Calibrating image density. Please
wait…
The printer is calibrating.
No action needed. Wait until error disappears.
S2–4210 Front door is open. Close it Front door is open. Close
it.
Front cover is open or the cover open sensor is defective.
Recommended action for customers
1. Close the cover.
2. If the error persists, open and close the cover and ensure it is
correctly closed.
3. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Check if the front cover is closed correctly.
2. If the message persists, send an on-site technician to perform
the remaining steps.
a. Check the front cover to ensure the tab that activates the
sensor is not damaged. If it is replace the front cover.
b. Check if the cover open sensor connector is connected properly.
Reconnect it.
c. If the sensor is defective, replace it.
Part number: 0604-01393
For instructions: HP LaserJet MFP M433, M436 - Removal: Front cover
open sensor
S2–4410 Right door is open. Close it Right door is open. Close
it.
Side cover is open or the cover open sensor is defective.
Recommended action for customers
1. Close the cover.
2. If the error persists, open and close the cover and ensure it is
correctly closed.
3. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Check if the side cover is closed correctly.
2. If the message persists, send an on-site technician to perform
the remaining steps.
Recommended action 111
"n" bundle part numbers: JC95-01832B
"dn, nda" bundles part numbers: JC95-01833B
b. Check if the cover open sensor connector is connected properly.
Reconnect it.
c. If the sensor is defective, replace it.
Part number: 0604-01393
For instructions: HP LaserJet MFP M433, M436 - Removal: Side
cover-open sensor
S3-XXXX error messages S3-3211
Automatic document feeder communication error.
Communication error occurred between the automatic document feeder
and the PBA.
Recommended action for customers
112 Chapter 7 Numerical control panel messages
Recommended action for call-center agents and onsite
technicians
1. A technician should be dispatched to troubleshoot the
error.
NOTE: The issue might be related to the automatic document feeder
(ADF) harness and the ADF socket. The ADF harness is sometimes
disconnected from the ADF socket when the ADF is opened.
2. Check both ends of the ADF cable to ensure that they are
connected and seated correctly.
3. Disconnect and then reconnect the existing ADF harness on the
ADF board. If the issue still occurs, replace the ADF harness with
a new harness.
part number: JC39-01978A
S3-3122 Scanner Locked / Scanner is locked. Press Stop button
Scanner lock error has occurred. scanner image bar does not
move.
Recommended action for customers
1. Turn the printer off, and then on.
2. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agent and onsite
technician
1. Turn the printer off, then on.
2. If the error persists, send an on-site technician to perform the
remaining steps.
a. Check if the Scanner Imaging Bar (SIB) unit is moving when
powering on.
Recommended action for call-center agents and onsite technicians
113
(M433, M436) Part number: 0605-001508
(M437, M438, M439, M440, M442, M443, M42523, M42525, M42623,
M42625) Part number: 0605-001255 or 0609-001508
c. If the SIB is defective, replace it.
Part number: JC39-02518A
d. Check if there is any defective part in the scanner unit. (Belt,
Motor etc.)
1
2
3
e. If the error persists, replace the main board.
Table 7-17 Part numbers
M433a JC92-02607K
M436n JC92-02607G
Table 7-17 Part numbers (continued)
Printer Model Main Board PBA Part number
M439dn 7ZB23-60001
M439nda 7ZB24-60001
M440n 8AF46-60001
M440dn 8AF47-60001
M440nda 8AF48-60001
M442dn 8AF71-60001
M443nda 8AF72-60001
M42523n 7ZB25-60001
M42523dn 7ZB26-60001
M42525n 7ZB27-60001
M42525dn 7ZB28-60001
M42623n 8AF49-60001
M42623dn 8AF50-60001
M42625n 8AF51-60001
M42625dn 8AF52-60001
S6-XXXX error messages
S6-3123 IP Conflict / This IP address conflicts with that of other
system IP address conflicts with that of other system. / There is
no response when checking the ping test.
Recommended action
1. Change the printer’s IP address.
Set-up the IP address in this order, Network -> TCP/IP (IPv4)
-> STATIC.
In case of DHCP or Bootp, reboot the printer to receive a new IP
address.
2. Check the setting-up for 802.1x confirmation server.
U1-XXXX error messages U1-2132, U1-2315, U1-2320, U1-2330, U1-2334,
U1-2340, U1-234H Fuser unit failure errors
Fuser Unit Failure: #U1-2xxx Turn off then on.
S6-3123 IP Conflict / This IP address conflicts with that of other
system 115
The thermistor can’t measure temperature. The hear-roller will not
heat-up. / Temperature of the fuser increases abnormally.
U1-2132, Error: #U1-2132 / Fuser Unit Failure: #U1-2132. Turn off
then on. Call for service if the problem persists
U1-2315, Error: #U1-2315 / Fuser Unit Failure: #U1-2315. Turn off
then on. Call for service if the problem persists
U1-2320, Error: #U1-2320 / Fuser Unit Failure: #U1-2320. Turn off
then on. Call for service if the problem persists
U1-2330, Error: #U1-2330 / Fuser Unit Failure: #U1-2330. Turn off
then on. Call for service if the problem persists
U1-2334, Error: #U1-2334 / Fuser Unit Failure: #U1-2334. Turn off
then on. Call for service if the problem persists
U1-2340, Error: #U1-2340 / Fuser Unit Failure: #U1-2340. Turn off
then on. Call for service if the problem persists
U1-234H, Error: #U1-234H / Fuser Unit Failure: #U1-234H. Turn off
then on. Call for service if the problem persists
Recommended action for customers
1. Turn the printer off, and then on.
2. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Turn the printer off and then on.
2. If the error persists, send an on-site technician to perform the
remaining steps.
3. Turn the printer off, remove, then re-install fuser unit.
4. If the error persists. Turn the printer off and remove the fuser
unit.
a. Check the fuser connector for bent or broken pins.
b. Ensure that the input voltage the printer is connected to meets
the specifications for the printer.
c. Check if the thermistor is twisted or contaminated; and is in
contact with the heat roller.
5. After confirming continuity in the fuser connector and the error
still exists; replace the below parts in order:
Part number: Fuser unit - JC91-01217A
For instructions: HP LaserJet MFP M433, M436 - Removal: Fuser
unit
M433a, part number: LVPS-SMPS Power Supply - JC44-00090H
M436n/M436dn/M436nda, part number: LVPS-SMPS Power Supply -
JC44-00223A
All other models, part number: LVPS-SMPS Power Supply -
JC44-00223G
For instructions: HP LaserJet MFP M433, M436 - Removal: LVPS
board
116 Chapter 7 Numerical control panel messages
For instructions: HP LaserJet MFP M433, M436 - Removal: HVPS
board
U2-XXXX error messages
U2-1111, U2-1112, U2-1113, U2-1114 LSU failure errors LSU Failure:
#U2-111x Turn off then on. Call for service if the problem
persists
Hsync signal of the LSU is abnormal.
U2-1111, Error: #U2-1111 / LSU Failure: #U2-1111.Turn off then on.
Call for service if the problem persists
U2-1112, Error: #U2-1112 / LSU Failure: #U2-1112.Turn off then on.
Call for service if the problem persists
U2-1113, Error: #U2-1113 / LSU Failure: #U2-1113.Turn off then on.
Call for service if the problem persists
U2-1114, Error: #U2-1114 / LSU Failure: #U2-1114.Turn off then on.
Call for service if the problem persists
Recommended action for customers
1. Turn the printer off, and then on.
2. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Turn the printer off then on.
2. If the error persists, send an on-site technician to perform the
remaining steps.
3. From the control panel, enter Tech Mode and execute the LSU
motor tests:
a. Touch the following in sequence: Menu > # > 1 > 0 >
0 > 4 > 3 > 6 > 1 > 6 > Menu
b. When Tech Menu is displayed, touch OK.
c. Go to the following: Diagnostics > Engine > Test Routines
> 110 – LSU > 0000 – LSU Mot 1Rdy & 0060 – LSU Mot
1Run
4. If there is no sound, remove the platen unit. Check if the LSU
harness is connected on the main board correctly.
U2-1111, U2-1112, U2-1113, U2-1114 LSU failure errors 117
Figure 7-7 Check 2 connections
6. Check if the LSU harness is defective. If needed replace
it.
Part number: LSU harness - JC39-01996A
7. Reconnect the LSU harness and then execute the LSU motor test
again.
8. If the error persists, replace the LSU.
Part number: LSU - JC97-04301A
For instructions:
9. If the error persists after replacing the laser scanner, replace
the main board.
Table 7-18 Part numbers
M433a JC92-02607K
M436n JC92-02607G
Table 7-18 Part numbers (continued)
Printer Model Main Board PBA Part number
M440n 8AF46-60001
M440dn 8AF47-60001
M440nda 8AF48-60001
M442dn 8AF71-60001
M443nda 8AF72-60001
M42523n 7ZB25-60001
M42523dn 7ZB26-60001
M42525n 7ZB27-60001
M42525dn 7ZB28-60001
M42623n 8AF49-60001
M42623dn 8AF50-60001
M42625n 8AF51-60001
M42625dn 8AF52-60001
U3-3211, U3-3213, U3-3214, U3-3311, U3-3313, U3-3314 Original paper
jam / Original paper jam inside of scanner. Remove jam
Original paper jam inside of automatic document feeder.
Jam has occurred inside the automatic document feeder unit.
U3-3211, U3-3213, U3-3214, U3-3311, U3-3313, U3-3314 Original paper
jam / Original paper jam inside of scanner. Remove jam 119
Recommended action for customers
2. Gently remove any jammed paper.
120 Chapter 7 Numerical control panel messages
3. Open the duplex/exit access cover and remove any paper
present.
1
2
4. Lift the input tray and remove any paper found in the exit
area.
5. Use a moist, lint-free cloth to wipe both pickup rollers and the
separation pad to remove dirt.
CAUTION: Do not use abrasives, acetone, benzene, ammonia, ethyl
alcohol, or carbon tetrachloride on any part of the printer; these
can damage the printer. Do not place liquids directly on the glass
or platen. They might seep and damage the printer.
Recommended action for customers 121
6. Close the document-feeder cover.
7. If the error persists, contact your HP-authorized service or
support provider, or contact customer support at
www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite
technicians
1. Walk the customer through clearing the jam and cleaning the
rollers as needed.
a. Open the document-feeder cover.
122 Chapter 7 Numerical control panel messages
c. Open the duplex/exit access cover and remove any paper
present.
1
2
d.
Recommended action for call-center agents and onsite technicians
123
e. Use a moist, lint-free cloth to wipe both pickup rollers and the
separation pad to remove dirt.
CAUTION: Do not use abrasives, acetone, benzene, ammonia, ethyl
alcohol, or carbon tetrachloride on any part of the printer; these
can damage the printer. Do not place liquids directly on the glass
or platen. They might seep and damage the printer.
f. Close the document-feeder cover.
2. If the error persists, send an on-site technician to perform the
remaining steps.
3. If this error continually displays, check the registration
sensor actuator and flag.
a. Check to ensure the actuator for the ADF registration photo
sensor moves freely. If their
124 Chapter 7 Numerical control panel messages
operation is abnormal, replace the defective part.
Call-out: Registration actuator
b. Check the actuator flag to ensure it is not damaged.
Call-out 1: Registration flag
Registration Photo Sensor part number: 0604-001393
For instructions: HP LaserJet MFP M433, M436 - Removal: Document
feeder registration-cover detect sensor
4. Test the sensor using tech mode.
a. Touch the following in sequence: Menu > # > 1 > 0 >
0 > 4 > 3 > 6 > 1 > 6 > Menu
b. When Tech Menu is displayed, touch OK.
Recommended action for call-center agents and onsite technicians
125
d. Touch OK to start.
NOTE: When the ADF is open the sensor Status should read High. When
ADF is closed, the Status should read Low. To continually check the
status touch OK multiple times.
e. If the sensor does not function correctly, replace the
sensor.
Registration Photo Sensor part number: 0