Service Manual BP20

G144

Ricoh Europe B.V.Technical Training Centre www.get-u-wice.com1

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www.get-u-wice.com

Ricoh Europe B.V.Technical Training Centre G144(Campari-P1)_full-spt_SER_ppt_EN_1.1.a.ppt

Aficio BP20/ BP20N (G144/G145)

Service Training

List of Changes: (See: View > Notes Page)

Minor changes1.1.a13-10-2005

Initial release1.0.a30-09-2005

DescriptionVersion HistoryDate of change

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Objectives After completing this training you should be able

to: install the machine in the field perform maintenance on the machine repair the machine in the field

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Requirements Training materials Machine (G144/G145) Workstation

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Training Materials This presentation Service manual G144/G145 Operating Instructions G144/G145

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Pre-requisites and Exam Basic copier for Service Master Basic printing for Service Master Exam multiple choice Note: You will need the Operating Instructions to

do this exam!

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Module Overview1. Product Outline

2. Specifications

3. Installation

4. Machine Overview

5. Engine

6. Maintenance

7. Replacements

8. Troubleshooting

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1. Product Outline

1. Product Outline

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Overview The BP20 is a small 20 ppm black-and-white

printer

Two versions: BP20: Standalone version BP20N: Networked version

1. Product Outline

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Targets Toner AIO: 5k (3,5 for starter cartridge) APV: BP20: 600/month BP20N: 1k/month

Max PV: 2500 MPBF: 30k Unit Life: 150k or 5 years, whichever comes first

1. Product Outline

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Optional Units The machine has the following optional units. 1 x 250 sheet paper feed unit Memory (32/128MB)

The machine has a standard memory of 16 MB. This can be expanded to a maximum of 144 MB.

1. Product Outline

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Printing Functions The machine has the following printing

functions: Toner Save Print quality option Poster printing Multiple pages per sheet (N-up) Scale printing Fit to page printing Different source for first page Watermark Overlay Print order

1. Product Outline

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Software The machine is delivered with an installer which

includes several software applications: PCL6 driver Multi Direct Print

Only for network installation Status Monitor Remote Control Panel

Only for local installation Set IP

Only for network installation Multi Direct Print Type S IPP Port

Only for network installation Users Guide

1. Product Outline

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Multi Direct Print Adds the MDP printer port Auto detection of printers on the network while

adding printer ports

1. Product Outline

Multi Direct Print Type S is the utility that provides Port Monitoring function for peer to peer connection with TCP/IP protocol.

This utility will be installed when a network port is chosen during printer software installation for Windows 95, 98 and Me.

MDP IPP Port does basically the same thing, but using an IPP port instead of a typical TCP/IP port.

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Status Monitor Function The status monitor provides the following two

major functions: Monitor printer status Troubleshooting guide

1. Product Outline

Monitor printer status The status monitor window shows on the PC screen if an error occurs while

printing. This feature can also show when the print job is completed.

Troubleshooting guide Troubleshooting guide comes with the Status Monitor. Double click the status monitor icon to access the guide. The guide is flash movie that lets you find solutions for the following:

Clearing paper jams Loading paper Closing covers Installing the toner cartridge Solving system errors

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Remote Control Panel RCP is the software control panel for DOS

environment.

It provides printer control when DOS printer drivers are not available or when certain print settings are not available through DOS software program.

1. Product Outline

RCP is not a printer driver. It should be used to set print settings that are not available through the DOS

software program. Printer drivers are supplied by the manufacturers of DOS software program.

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Set IP Set IP is the utility that enables users to

configure IP address, Subnet Mask and Default Gateway.

The utility is necessary for non-DHCP environment when users connect the printer via TCP/IP.

1. Product Outline

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Embedded Web Server (EWS) This function is basically same to Ricohs Web

Image Monitor.

Users can monitor the status and change/configure printer setting via web browser.

1. Product Outline

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2. Specifications

2. Specifications

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General Specifications Print speed 20 ppm for A4 22 ppm for Letter

Resolution 600 x 600 dpi (default) 1200 x 1200 dpi

Warm up time: 42 seconds First print time 10 seconds from stand-by 50 seconds from energy saver mode

2. Specifications

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Paper Input Specifications Paper input

Standard paper tray: 250 sheets By-pass tray: 50 sheets Optional paper tray: 250 sheets

Paper sizes Standard tray: A4/DLT-A5 By-pass tray: A4/DLT-A6, Free size

Paper weight Standard/Optional paper tray: 60-90 g/m (16-28 lb.) By-pass tray: 52-163 g/m (14-43 lb.)

Paper output: 151 sheets maximum 150 sheets face down 1 sheet face up

This machine does not support duplex printing

2. Specifications

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Controller Specifications CPU: 166 MHz Printer languages Standard: PCL6

Interfaces Standard: IEEE1284, USB 2.0

Memory Standard: 16 MB Maximum: 144 MB

Network 10/100 Base TX (BP20N only)

2. Specifications

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3. Installation

3. Installation

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Overview The user installs this machine. This means that there is no installation

procedure in the Service Manual.

However you should also know how to do a full machine installation in case you are required to do so in the field.

Use the Operating Instructions to install the machine.

3. Installation

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Before You Start Go over the following with the customer before

you install the machine. You can get the details from the Operating Instructions (OI), Section 2. Unpacking the machine

Show the customer all the accessories. Point out the packing tapes and show the customer how to correctly remove them.

Selecting a location Assist the customer in selecting a suitable area to put

the machine. Make sure the customer understands the machine requires certain clearance.

Explain to the customer about the dangers of direct sunlight, cool air, etc.

3. Installation

More on Before you Start You may have to install the machine this time. However if the customer is

satisfied with this machine they may order a second machine at a future date. At this time. the customer may have to install the second machine by themselves. For this reason you should cover the points shown on the slide.

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Installation - Main Unit Install the toner cartridge Operating Instructions (IO), Section 2

Do the following after you have installed the toner cartridge. Load paper to the machine Change the paper size in the tray Connect the machine Switch the machine on Print a demo page

3. Installation

More on InstallationShow the customer the following How to shake the toner cartridge before you install it to the machine. The correct procedure to load paper to the machine as well as how to

change the tray size. This can prevent paper jams in the future. How to connect the machine. They may want to move the machine to

another location in the future. How to switch on the machine.

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Printer Software Do the following: Install the machine software Repair the software Remove the software Use the Set IP application

3. Installation

Operating Instructions, Section 2More on Printer Software Make sure to examine the system requirements before you install the system

software. Do the repair/remove software procedures as often as you feel necessary.

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Options Install the following optional units. Memory Paper tray unit

3. Installation

Operating Instructions, Appendix B

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Last Step Do a couple of print jobs to make sure the

machine works correctly. Try and use various paper sizes and print media

if possible.

3. Installation

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4. Machine Overview

4. Machine Overview

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Overview This section will show you how to use the

machine.

Most of the information in this module is for the user.

The engine and main components will be very briefly introduced in this training module.

More details will be given in the engine training module.

4. Machine Overview

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Operation Panel On Line/Error LED Toner save LED Cancel button

4. Machine Overview

Press cancel button Result

1 While printing Cancel current print job

2 0.5 sec Toner Save on/off

3 2 sec Print Demo Page

4 6 sec Print Config Page (print counter avilable)5 10 sec Self cleaning and output Cleaning Paper

Service Manual, Section 6.1.3More on the Operation Panel Go to the machine and have a look at the operation panel. Show the operation panel to the customer and let them know how to use the

button.

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Printing Process Paper feed mechanism Separation pad mechanism

Drive mechanism One main motor drives the machine

Development unit Single component type developer

Transfer unit Transfer roller system

Fusing unit Hot roller/ pressure roller

4. Machine Overview

More on the Printing ProcessPaper feed mechanism Together with sensors in the feed path these serve to control paper

registration and guide the paper through the Image transfer, image development, image fusing and exit assemblies.

Drive mechanism The main drive mechanism uses a Bi-polar 2 phase motor. It drives the OPC, paper pick-up and paper feed rollers using a gear train

mechanism.Development unit The machine uses the laser scanning unit (LSU) of the mechanism to create

images on the OPC drum. Transfer unit High voltages supplied by the HVPS move the image from the developer unit

onto paper. Fusing unit The fusing unit applies the toner image onto the paper. This is achieved with a temperature controlled heating unit.

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Using the Machine Practice the following. Using print materials. Printing tasks. Printing from DOS applications (if applicable)

4. Machine Overview

Operating instructions, Section 3, 4, Appendix A, Administrator Guide

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5. Engine

5. Engine

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Overview The engine and main components will be

covered in this chapter.

5. Engine

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System Layout

PREXITSensor

Fusing Unit LSU Toner Cartridge

By-pass Tray

Paper Tray Unit OPC Paper Empty Sensor Paper Feed Sensor

5. Engine

More on the System Layout Examine the system layout. It is important that you have good knowledge of the machine and machine

component locations. This knowledge will be useful when you need to clear paper jams. Paper jams will be covered in more detail in the troubleshooting section.

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Paper Feed Paper separation method A friction pad separates individual sheets of

paper Paper tray mechanism Center load method Software detects paper size as it is feed through

the machine The rear and side paper guides can be adjusted

for paper sizes Paper empty sensor detects paper end

Pick-up roller Feeds paper to the printer

5. Engine

Service Manual, Section 6.3.1

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Transfer Unit Pre-transfer Lamp (PTL) and transfer roller move

toner from the OPC drum onto the paper. The PTL shines light onto the OPC.

This reduces the electrical charge on the surface of the OPC drum and improves the transfer efficiency.

The transfer roller attracts toner from the OPC to the paper.

5. Engine

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Drive The main PWA supplies power to the paper drive

assembly.

The main motor supplies power to the following. Paper feed unit Toner cartridge Fusing unit Pick-up, feed and exit rollers.

5. Engine

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Fusing Unit Mechanism Fusing lamp Hot roller Pressure roller Thermistor and thermostat.

Safety features 1st protection device: Hardware cuts off when the

machine overheats (>207C). 2nd protection device: Software cuts off when the

machine overheats (>220C). 3rd protection device: Thermostat cuts off mains

power to the fusing lamp (>160C).

5. Engine

More on Fusing Unit OverviewSafety Devices Fusing power gets cut off when the front cover is opened. LSU power gets cut off when the front cover is opened. The temperature of the fusing units cover surface stays at less than 80C.

This protects the user. A caution label is attached where the customer can see it easily when

the rear cover is opened

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Main Fusing Components Hot Roller The fusing lamp heats the surface of the hot

roller. Toner gets melted and stays on the surface of the

paper when the paper passes between the hot roller and pressure roller.

Pressure Roller The pressure roller is mounted under the hot

roller.

5. Engine

The surface of the hot roller and pressure roller is coated with Teflon to ensure that toner does not stay on the roller surface.

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Fusing Unit Safety Components Thermostat The thermostat cuts off the power to the fusing

lamp to not let the machine overheat. Power gets cut when the thermostat temperature

gets to 160C. Thermistor The thermistor detects the surface temperature of

the hot roller. This information goes to the main processor

which uses this information to regulate the temperature of the hot roller

5. Engine

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Laser Unit LSU converts video data into an electrostatic

latent image on the surface of the OPC drum. This gets done by controlling the laser beam and

exposing the surface of the OPC drum to the laser light. Polygon mirror reflects the laser light onto the

OPC drum. Each side of the mirror is one scan line.

5. Engine

More on the Laser Unit The OPC drum rotates as the paper feeds to scan the image down the page.

A /HSYNC signal gets created when the laser beam from LSU gets to the end of the polygon mirror.

Then the signal goes to the controller. The controller detects the /HSYNC signal to adjust the vertical line of

the image on paper.

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Toner AIO Cartridge

Transfer Roller

Charge RollerOPC Drum Doctor Blade

Supply Roller

Developer Roller

5. Engine

More on Toner AIO Cartridge The toner cartridge contains the OPC unit and toner unit.

The OPC unit consists of the OPC drum and charging roller. The toner cartridge unit consists of the toner, supply roller, developing

roller, and doctor blade. There is no toner near end sensor in the machine. But the machine has a toner remaining amount sensor.

A cleaning blade is used to collect used toner. Developing method: Non magnetic 1 element contacting method Toner: Non magnetic 1 element shatter type toner Toner life span: 5,000 sheets (IDC Pattern/A4 standard) OPC cleaning: Electrostatic process

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New AIO Detection A new supply AIO cartridge has a ID chip. The machine knows a new cartridge has been

installed when the chip gets detected.

5. Engine

More on New Toner Cartridge Detection When the new cartridge is installed in the machine, the machine

automatically detects by the ID chip that the cartridge is brand-new. Then the machine resets the total dot counter (TOTAL TONER COUNT) and

CRU print counter (Cru Prints). and increments the counter for counting the number of CRU replaced (Replaced Toner Counts).

In the case when the Replaced Toner Counts is 0, the CRU currently installed is regarded as a starter CRU.

In this condition, threshold to detect toner end is shorter than that for supply CRU.

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Toner End Detection The machine does not have a toner end sensor. The machine checks the amount of toner with

software. The machine counts and adds up black dots as

toner consumption. For example, the following occurs when the

machine prints 5% of test chart. Starter cartridge: Approx. 4,750,000,000 dots will be

added Supply cartridge: Approx. 7,500,000,000 dots will be

added

5. Engine

More on Toner End Detection When the total number of dots gets to a pre-programmed figure (as for toner

near-end), the machine shows TONER LOW. After another period of dots has been counted up, the machine finally shows

TONER EMPTY (as for toner end), and the machine stops printing.

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Sensors Paper empty sensor

The machine flashes the red ERROR LED when the paper feed unit is empty.

By-pass tray sensor The CPU monitors this sensor to detect if paper is in the by-

pass tray. Paper feed sensor

Paper gets detected by the photo interrupter when it passes the actuator on the feed sensor.

Paper exit sensor The exit sensor on the engine board, and actuator on the

frame detect when paper exits from the machine. Cover open sensor

Located on the power supply board and is operated by a molded tab on the front cover.

5. Engine


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Circuitry DC fan/solenoid driving

Two solenoids are driven by signals from the CPU (by-pass and paper pick-up).

Motor drive Software controls the acceleration, constant speed and

deceleration. Transfer

PWM (Pulse Width Modulation) controls the charging voltage, developing voltage and the transfer voltage.

Fusing The resistance value of the thermistor detects the

temperature of the heat roller's surface LSU

The laser diode turns on and the polygon motor is enabled when it gets a print signal

5. Engine

More on CircuitryDrive The motor drives the paper feed unit, developing unit, fusing unit and exit

assembly.Transfer The output voltage changes according to the PWM duty cycle. Environment recognition detects the transfer voltage used when the paper

passes the transfer roller. Fusing The A/D converter measures the thermistor resistance and lets the CPU

determine the temperature of the heat roller. The AC power is controlled by comparing the target temperature to the value

from the thermistor. An error shows if the value from the thermistor is out of the controlling range

during the fusing process. LSU The LSU consists laser diode and the polygon motor control. The laser diode turns on and the polygon motor is enabled when the printing

signal occurs. Hsync occurs when the light sensor detects the beam, and LReady occurs

when the polygon motor speed becomes a normal. The LSU is ready if these two conditions are satisfied.

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Fusing Unit Errors 1 Open heat error Temperature stays lower than 68C for more than

28 seconds during warm-up Low heat error Standby:

Temperature stays lower than 80C for more than 10 seconds.

Printing: Temperature stays lower than 145C for more than 4

seconds for up to two consecutive print jobs. Temperature stays 25C lower than the fixed

fusing temperature for more than 4 seconds for up to two consecutive print jobs. Temperature stays higher than 220C for more

than 3 seconds.

5. Engine

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Fusing Unit Errors 2 Overheat error Temperature stays higher than 220C for more

than 3 seconds. All LEDs flash when the above errors get

detected.

5. Engine

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LSU Errors Polygon motor error The polygon motor speed does not become

stable Hsync error The polygon motor speed is stable, but the Hsync

is not generated

5. Engine

More on LSU Errors The LSU consists laser diode and the polygon motor control. The laser diode turns on and the polygon motor is enabled when the printing

signal occurs. Hsync occurs when the light sensor detects the beam, and LReady occurs

when the polygon motor speed becomes normal. The LSU is ready if these two conditions are satisfied.

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Main Control Board Main processor: ASIC (166MHz) Memory parts Flash Rom, Control Program and DRAM,

Engine interface parts Motor control, fusing unit control, HVPS control,

sensors etc. PC Interface USB, Parallel, Network

Bus, DMA and I/O handling

5. Engine

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Power Supply High voltage power supply (HVPS) Switching mode power supply (SMPS)

5. Engine

More on the Power Supply The SMPS and HVPS are on the same board. The SMPS supplies DC power to the system.

It takes either 110V or 220V and outputs the +5V and +24VS to the main and other PBAs.

The HVPS creates the high voltage of THV/MHV/Supply/Dev and supplies it to the toner cartridge. The CPU modifies the voltage settings to provide ideal voltages to

create images. The HVPS part uses the 24V and outputs the high voltage for

THV/MHV/BIAS. Then the outputted high voltage get supplied to the toner, OPC

cartridge and transfer roller.

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High Voltage Power Supply The HVPS supplies the following voltages: Transfer high voltage (THV+) Charge voltage (MHV) Cleaning voltage (THV-) Developing voltage (DEV) Supply voltage

5. Engine


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Switching Mode Power Supply The SMPS supplies the following: AC Input Rated Output Power Consumption Power

5. Engine


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6. Maintenance

6. Maintenance

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Overview The user can do all maintenance procedures for

this machine.

However you should also know how to maintain this machine in the event that you are asked to do so in the field.

6. Maintenance

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6.1 Service PM

6.1 Maintenance > Service PM

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Service PM Intervals Transfer roller: 60 K Fusing unit: 80 K Pick-up Ass'y: 150 K

6.1 Maintenance > Service PM

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6.2 User PM

6.2 Maintenance > User PM

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Toner Cartridge Important notes: Keep the cartridge in the package until you are

ready to use it. Do not refill the toner cartridge. Store toner cartridges in the same environment

as the machine. Do not expose the cartridge to light for more than

a few minutes. The following procedure lets you save toner: Press the cancel button on the operation panel

for about 0.5 second. The toner save function is enabled when the button lights.


More on Toner Cartridge The toner save button function extends the life of the toner cartridge as well

as reducing the cost per page. However print quality is also reduced when you enable this function. Some users are concerned about image quality. For this reason you should let the user know about this effect.

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Redistributing Toner Images can fade or light areas can show if the

toner is low.

Redistributing the toner can temporarily solve this.


Operating Instructions, Section 5More on Redistributing Toner Redistributing the toner is not a permanent solution. Let the user know that this 'could' temporarily solve the problem, and that

they should replace the toner cartridge as soon as possible. Replace the toner cartridge if the above procedure does not solve the

problem.

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Cleaning the Printer The machine should be cleaned each time you

replace the toner cartridge, or, if there are problems with print quality.

Do the following: Clean the outside of the machine Clean the inside of the printer Clean the scan unit


Operating Instructions, Section 5

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Cleaning Sheet The machine can be set to print out a cleaning

sheet automatically every 500 print pages.

You should print a cleaning sheet under the following conditions. If you use inferior quality paper If you are experiencing blurred, faded,or smeared

printouts.


Operating Instructions, Section 5More on the Cleaning Sheet Let the customer know the following.

They should print a cleaning sheet if they experience the conditions shown on the slide.

Low quality paper can affect image quality. The cleaning sheet contains toner dust particles. Discard this sheet

immediately after use.

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Configuration Pages The configuration page lets you examine/do the

following: Printer settings Troubleshoot machine problems Verify installation of optional accessories

(memory, languages, etc) A network configuration sheet also gets printed if

the machine has a network card.

Print and examine the configuration page.


Operating Instructions, Section 5

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7. Replacements and Adjustments


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Overview This chapter will include practical work

assignments.

Make sure you read the precautions in Section 3.1 of the Service Manual before you do the replacement procedures. Otherwise you can damage the machine.

Work through all the assignments in the order that they are presented in the training module. The procedure to reassemble the fusing unit is

complicated. Full details will be provided for this procedure.


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Practical Assignment 1 Do the replacement procedures for the following

parts: Covers Exit roller Engine shield Exit board SMPS

Note that some of the screws to removed are located on the inside of the machine


Service Manual, Section 3.2 to 3.5

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Fusing Unit The procedure to reassemble the fusing unit is a

bit complicated. The stripper pawls must be put in the correct

position before you can reassemble the fusing unit. Stripper pawls (red circles) and stripper pawl

heads (red arrows) must be set as shown below.


More on Reassembling the Fusing Unit The most important thing to note when you reassemble the fusing unit, is the

position of the 4 stripper pawls. The stripper pawls must be put back to their original position when you

reassemble the fusing unit. The machine will still work if the stripper pawls are not put back in their

correct positions. However the print quality will be severely affected. There is a procedure to do this.

1. Remove the stripper pawls from the stripper pawl slots. 2. Put the top part of the fusing unit and the bottom part of the fusing unit

together again.3. Set the stripper pawls into the stripper pawls holder slots and snap them

into the slots. 4. Make sure the stripper pawl heads sit as they are shown in the slide.5. Finally, reassemble the rest of the fusing unit.

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Incorrect Position This shows the stripper pawls in the incorrect

position. Note how the stripper pawls (red circles) and stripper pawl heads (red arrows) are not sitting in their correct position.


More on Incorrect Position Compare this slide to the previous slide and note the positions of the stripper

pawls and the stripper pawl heads. The difference should be obvious.

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Practical Assignment 2 This assignment will cover the fusing unit only. Do the replacement procedures for the following

parts: Fusing unit assembly Thermostat Fusing lamp Stripper pawls Thermistor


Service Manual, Section 3.6.1 to 3.6.5

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Practical Assignment 3 Do the replacement procedures for the following

parts: Fan Laser Scanning unit Drive unit Transfer unit Bypass tray unit and feed roller Pick-up Assembly and Solenoid


Service Manual, Section 3.7 to 3.12

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8. Troubleshooting

8. Troubleshooting

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Overview The user can do most of the troubleshooting

procedures for this machine.

However you should also know how to troubleshoot this machine in case you are asked to do so in the future.

8. Troubleshooting

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Paper Path Examine the paper path. You need to understand the paper path to know

where paper jams can occur in the machine.

8. Troubleshooting

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Jam0 Jam0 occurs in the paper feed unit or in the by-

pass feed unit. In other words this is an error in the paper feed areas. The fed paper passes the paper feed sensor.

Jam0 occurs if the sensor is not operated within a certain time.

EXITSensor

8. Troubleshooting

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Jam1 Jam1 occurs around the fusing unit and toner

cartridge areas of the machine. The paper moves to the paper exit sensor after it

passes the paper feed sensor. Jam1 occurs if the sensor is not operated within a certain time.

EXITSensor

8. Troubleshooting

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Jam2 Jam2 occurs around paper exit area. The paper then passes through the paper exit

sensor and out of the machine. Jam2 occurs if the trailing edge of the paper does not pass the exit sensor within a certain time of the paper leading edge activating the exit sensor.

EXITSensor

8. Troubleshooting

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Slide 79

Clearing Paper Jams Paper can get jammed under the following the

conditions. The tray is loaded incorrectly or overfilled The tray has been pulled out during a print job The front cover has been opened during a print

job. Incorrect paper has been used.

Practice clearing the various paper jams.

8. Troubleshooting

More on Clearing Paper Jams Paper jams will be the most common problem for the user. It is important for the user to know how to correctly clear paper jams when

they occur. Explain the paper jam types to the user. In addition go over the techniques to clear paper jams in the operating

instructions with the use and let them practice removing them if they are eager to do so.

Technically you will not be able to do the practical assignment as there will not be any paper jammed in the machine.

However you can go to the jam location and simulate the jammed paper removal procedure.

Explain the following to the user The On Line/Error LED on the control panel lights red if a paper jam occurs.

Find and remove the jammed paper. Look inside the printer if no paper visible. Do not use tweezers or other sharp metal tools to remove jammed paper. Make sure you remove all paper fragments from the machine if the paper

tears when you remove it from the machine. Otherwise a jam will occur again.

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Tips to Avoid Paper Jams 1 Make sure that the adjustable guides are

positioned correctly.

Do not overload the tray. Ensure that the paper is below the paper capacity mark on the right inside of the tray.

Do not remove the paper from the tray at the time the machine prints.

Flex, fan and straighten the paper before you load it to the paper feed unit.

8. Troubleshooting

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Slide 81

Tips to Avoid Paper Jams 2 Do not use creased, damp or highly curled paper. Do not mix paper types. Use only recommended print media. Ensure that the recommended print side is facing

down when you load paper to the input tray.

8. Troubleshooting

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Slide 82

Report Sheets Sample Pattern: The sample pattern lets you maintain and check

the machine for abnormal conditions. Demo/Configuration Sheet: The demo page and configuration sheet lets you

check if the machine operates correctly. Cleaning Sheet: You should print a cleaning sheet if printed

images are blurred, faded or smeared.

8. Troubleshooting

Service Manual, Section 4.3

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Slide 83

Operation Panel Display Examine the table below. This shows the LED

flash combinations that appear on the operation panel when an error occurs.

8. Troubleshooting

Error LED Status

Open fusing unit errorThe [Error] LED (red) and the [Toner Save] LED f lash simultaneously at 1 second intervals.

Overheat errorThe [Error] LED (orange) and the [Toner Save] LED f lash simultaneously at 1 second intervals.

Low heat error The [Error] LED (red) and the [Toner Save] LED f lash simultaneously at 4 second intervals.

LSU not ready error (polygon motor error)

The [Error] LED (green) and the [Toner Save] LED flash simultaneously at 1 second intervals.

LSU not ready error (HSYNC error)

The machine stops printing and the [Error] LED (green) and the [Toner Save] LED f lash simultaneously at 4 second intervals.

No additional notes

G144


Slide 84

Common Problems The service manual has tables to help you solve

all kinds of problems with: Printout: Section 4.6.1 to 4.6.17 Paper Feed: Section 4.7.1 to 4.7.7 Machine Malfunctions: Section 4.8.1 to 4.8.10 Software/ Network: Section 4.10.1 to 4.10.4

8. Troubleshooting

No additional notes

G144


Slide 85

Toner Cartridge Error Messages The following table shows error messages that

can be displayed on the machine.

8. Troubleshooting

LED Pattern Problem Description SolutionOnline/Error LED lights

orangeToner cartridge near the end

of its lifeReplace cartridge or

redistribute tonerOnline/Error LED blinks

orangeToner cartridge is empty Replace cartridge

Online/Error LED blinks orange and red alternately

Installed cartridge is not designed for this machine Replace cartridge

No additional notes

G144


Slide 86

Firmware Upgrade There are 2 ways to upgrade the machine

firmware: Command Prompt EWS (Embedded Web Server)

Print out the configuration page before attempting to upgrade the firmware The loss of data and settings is very rare, but a

backup is recommended

8. Troubleshooting

No additional notes

G144


Slide 87

Command Prompt You can only use one of the following operating

systems for this type of upgrade: Windows NT Windows 2000 Windows XP

Connect the machine to a PC with a parallel cable Open a command prompt and enter: Copy /b Filename lpt1

The firmware will automatically be upgraded

8. Troubleshooting

No additional notes

G144


Slide 88

EWS Open EWS Select Maintenance Upgrade Firmware Select Browse and select the firmware file Select the Update Printer Firmware button

8. Troubleshooting

No additional notes

G144


Slide 89

Recovery Procedure The machine will not operate if the update

procedure did not work correctly. At this time, do the following steps: Turn the power off and then on Do the steps in the download procedure The machine will start the upgrade again

8. Troubleshooting

No additional notes

G144


Slide 90

Aficio BP20/ BP20N (G144)

END

No additional notes

Aficio BP20/ BP20N (G144/G145)ObjectivesRequirementsTraining MaterialsPre-requisites and ExamModule Overview1. Product OutlineOverviewTargetsOptional UnitsPrinting FunctionsSoftwareMulti Direct PrintStatus Monitor FunctionRemote Control PanelSet IPEmbedded Web Server (EWS)2. SpecificationsGeneral SpecificationsPaper Input SpecificationsController Specifications3. InstallationOverviewBefore You StartInstallation - Main UnitPrinter SoftwareOptionsLast Step4. Machine OverviewOverviewOperation PanelPrinting ProcessUsing the Machine5. EngineOverviewSystem LayoutPaper FeedTransfer UnitDriveFusing UnitMain Fusing ComponentsFusing Unit Safety ComponentsLaser UnitToner AIO CartridgeNew AIO DetectionToner End DetectionSensorsCircuitryFusing Unit Errors 1Fusing Unit Errors 2LSU ErrorsMain Control BoardPower SupplyHigh Voltage Power SupplySwitching Mode Power Supply6. MaintenanceOverview6.1 Service PMService PM Intervals6.2 User PMToner CartridgeRedistributing TonerCleaning the PrinterCleaning SheetConfiguration Pages7. Replacements and AdjustmentsOverviewPractical Assignment 1Fusing UnitIncorrect PositionPractical Assignment 2Practical Assignment 38. TroubleshootingOverviewPaper PathJam0Jam1Jam2Clearing Paper JamsTips to Avoid Paper Jams 1Tips to Avoid Paper Jams 2Report SheetsOperation Panel DisplayCommon ProblemsToner Cartridge Error MessagesFirmware UpgradeCommand PromptEWSRecovery ProcedureAficio BP20/ BP20N (G144)

Documents

Service Manual BP20