Client: Canon Program:imageRUNNER ADVANCE C5000 Series ...€¦ · 10/10/2018 · imageRUNNER Advance Topic 3 eLearning Storyboard.doc Page 2 of 31. Topic #: T3050 New Reader Unit

Client: Canon Program: imageRUNNER ADVANCE C5000 Series Script: 10/10/2018 (Topic 3 )

imageRUNNER Advance Topic 3 eLearning Storyboard.doc Page 1 of 31

Topic #: T3010 Topic 3 Voiceover Filename:

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Topic 3: imageRUNNER ADVANCE C5000 Image Formation

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Use Standard Topic Cover page.

Script: Topic 3 Image Formation Screen

Text: Topic 3 Image Formation

Topic #: T3020 Topic 3 Objectives Voiceover Filename:

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Script: After completing this topic, you will

be able to perform the tasks listed here: We will focus on the new features of the image formation system on the imageRUNNER ADVANCE. We are including image exposure and laser exposure in this image formation topic.

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• Identify the new functions in the image formation system of the imageRUNNER ADVANCE C5000 Series

• Explain the layout of the image formation system on the imageRUNNER ADVANCE C5000 Series

Topic #: T3030 Original Exposure Voiceover Filename:

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Script: Image Formation Original Exposure

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Image Formation - Original Exposure Image from Slide 1 of iRA-C5051-ADF2-SUB-E-D1.ppt

Topic #: T3040 Original Exposure-Intro Voiceover Filename:

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Script: We are not going to go through

every detail with the image reader as it is very similar to other image readers you have serviced. We will cover the important differences.

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Image Formation - Original Exposure Image from Slide 1 of iRA-C5051-ADF2-SUB-E-D1.ppt



Topic #: T3050 New Reader Unit Voiceover Filename:

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Script: This new scanner unit is the next

generation in image readers. It was introduced with the imagePRESS 1135 and is now being implemented on the new imageRUNNER ADVANCE series. Some of the new features are utilizing a CMOS line sensor, which allows for lower power consumption and high-speed scanning. Exposure to light is by using white color LEDs that enable low power consumption and reduce the physical size of the unit. It also allows for better color balance, which improves color stability.

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Images from page 7-2-1 of the 058-TrainingManual-E_(Rev0)090612.pdf

Topic #: T3060 3 Reader Products Voiceover Filename:

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Script: As was pointed out in the Overview

topic the following 3 types of image reading products are available: the Duplex Color Image Reader Unit-B1 with which single-path duplex reading is available, the Color Image Reader Unit-B1 with which reverse duplex reading is available, and the plain Copyboard covered reader. We are going to focus on the Duplex Color Image Reader Unit -B1. Remember this is an integrated product that consists of the Reader and the DADF. The reader and the DF are now hardwired from the factory.

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Image from page 1-1-3 of the 058-TrainingManual-E_(Rev0)090612.pdf



Topic #: T3070 Scanning Operation Voiceover Filename:

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Script: This option employs a double sided

simultaneous scanning method. The front side of the document is scanned by the scanner unit of the reader, while the back side is scanned by the scanner unit of the DADF. Reversal of the document for scanning is not required. This increases productivity for duplex scanning.

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Topic #: T3080 Reader Specifications Voiceover Filename:

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Script: Take a look at the reader

specifications here in this table. Screen Text:

Table from Slide 4 of iRA-C5051-ADF1-SUB-E-D1.ppt

Topic #: T3090 Major Electrical Components Voiceover Filename:

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Script: Here are the major electrical

components for the image reader B1. Notice the size sensors CF1 and CF2 as those are used in length detection and the CMOS is used for width detection.

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image from Slide 5 of iRA-C5051-ADF1-SUB-E-D1.ppt

Topic #: T3100 Depth of Field Voiceover Filename:

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Script: This image reader using the new

CMOS sensor has a much greater depth of field. Take a look at a circuit board that was scanned on the reader of an imagePRESS C1 and the reader of an imageRUNNER ADVANCE C5051. Notice the comparison.

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Topic #: T3110 DADF – Major Components Voiceover Filename:

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Script: Here is the layout of the major

electrical components for the DADF. There are 10 motors, 3 fans, and 1 solinoid.

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Topic #: T3120 DADF – Specifications Voiceover Filename:

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Script: Here are the specifications for the

DADF as compared to the document feeder from the iRC3880.

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Topic #: T3130 DADF – Enhancements Voiceover Filename:

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Script: Here are some enhancements that

have been made to the new DADF. There are now 4 sensors that detect the width of a document being fed from the feeder. The pick-up rollers are now doubled and the document feeder is hard wired at the factory.

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Image from Slide 4 of iRA-C5051-ADF2-SUB-E-D1.ppt

Topic #: T3140 DADF – Mixed Originals Voiceover Filename:

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Script: Here is a table that details the

different size combinations that are supported with the new document feeder.

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Topic #: T3150 Original Tray Lifter Control Voiceover Filename:

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Script: To enable stacking of 300 sheets of

originals (80 g/m2) and stream scanning, this equipment controls the pickup position to be kept constant by moving the original pickup tray up and down.

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Topic #: T3160 Operation at Pickup Voiceover Filename:

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Script: This operation is facilitated by the

motors M10, which drives the pickup roller unit and M8, which drive the lifting of the original tray. There are two main sensors used also SR12 detecting the pick-up unit positions and SR6 detecting the surface of the paper. The object of this operation is to allow a large capacity of originals but maintain the proper feed height.

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Use both Images from page 7-2-18 of the 058-TrainingManual-E_(Rev0)090612.pdf

Topic #: T3170 Glass Shift Control Voiceover Filename:

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Script: The scanning glass set to the bottom

of the back reading scanner unit has the standard white plate that is used for the shading correction and the dust detection correction. The scanning glass moves according to the drive of the glass shift motor (M9) and its position is detected by the glass shift home position sensor (SR11)

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Topic #: T3180 Dust Detection Control Voiceover Filename:

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Script: This control detects dust stuck on

the reader or DADF scanner area and also any dust that may be stuck on the original during the feeding. In response to dust detection this control can change the scanning position and/or corrects the data to avoid the white lines/black lines from appearing on the scanned image.

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Use top image from page 7-2-22 of the 058-TrainingManual-E_(Rev0)090612.pdf <Instruction for use> If there are extra-fine lines on the original (ruled lines etc.), the machine may erroneously detect them as non-continuous lines and lines may be deleted if Additional Functions Mode>Common Settings>Streak Prevention is set to On. In that case, set this item to Off.

Topic #: T3190 Limited Functions Mode Voiceover Filename:

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Script: Because as we pointed out earlier

the reader and document feeder are hard wired you can no longer unplug the DF incase of a fault. Now the imageRUNNER Advance series has a limited functions mode to deal with DF errors. When an error is detected, the functions related to the detected error are limited to keep the machine functional even if at a basic level. When a corresponding error code is detected, turn the machine OFF and ON so that the function limitation mode is activated. When the limitation mode is activated, scan operation is limited according to the table seen here, depending on the function to be limited. After the problem has been corrected cycle the power and if the reader deems that there is no error, the function limitation mode is released.

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Use top Table from page 7-2-29 of the 058-TrainingManual-E_(Rev0)090612.pdf



Topic #: T3200 Laser Exposure Voiceover Filename:

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Script: Image Formation - Laser Exposure Screen

Text: Image Formation - Laser Exposure

Topic #: T3210 Laser Intorduction Voiceover Filename:

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Script: Since the lasers a really a none field

serviceable item other than replacement, we will only cover the few important items to take away from this section.

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image from Slide 2 of iRA-C5051-LASR-TXT-E-R01.ppt

Topic #: T3220 Laser Overview Voiceover Filename:

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Script: To increase the speed of printing,

this machine adopts 2 Laser Scanner Units and the Laser Driver of each color uses a laser with 4-beam scanning. The imageRUNNER ADVANCE C5051 / C5045 employs a 4 beam laser and the C5035 / 5030 employs a 2 beam laser. Here you can see the major components of the laser system.

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image from Slide 2 of iRA-C5051-LASR-TXT-E-R01.ppt

Topic #: T3230 Laser Operation Voiceover Filename:

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Script: Here you can click “Play to see the

laser details and operation. You can pause and replay if necessary.

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swf_sequence_laser.swf



Topic #: T3240 Laser Specifications Voiceover Filename:

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Script: Here are the specifications for the

laser system. Screen Text:

Table from page 3-2-3 of the 058-TrainingManual-E_(Rev0)090612.pdf

Topic #: T3250 Laser Shutter Control Voiceover Filename:

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Script: This is to prevent toner residue from

sticking to the dust-prevention glass and to prevent the laser light from escaping the unit when the front cover or right cover is opened. Click “Play” to see the laser shutter in operation. You can pause and replay if necessary. You will see M28 rotate the cam 90 degrees to open the black shutter then another 90 degrees to open the color shutter along with the black. Then M28 rotates the cam 180 degrees back to home position to close all the shutters. Home position is detected by PS29.

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swf_control_laser_shatter.swf



Topic #: T3260 Image Tilt Correction Control Voiceover Filename:

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Script: The Image Tilt Correction Control is

used to prevent color displacement. It is executed at power on and after 360 sheets of printing. The DC Controller creates a patch pattern for each color on the ITB. Then the DC Controller compares the patch pattern with the standard value in the DC Controller by reading this patch pattern at the Patch Sensor and detects the color displacement amount. Based on the detection result, the laser emission position (tilt degree) of Laser Scanner Unit is changed. Click “Play to see the Image Tilt Correction operation. You can pause and replay if necessary.

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swf_control_lens_incline.swf

Topic #: T3270 Print Process Overview Voiceover Filename:

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Script: Now let’s take a look at the big

picture. Here you will see the process in action for single and double sided operations. Click Play to watch the print engine in action.

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swf_sequence_printer.swf



Topic #: T3280 Print Process Enhancements

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Script: This list shows the major

improvements that have been made to the new imageRUNNER ADVANCE C5000 Series compared to the previous iRC3880/2880 series.

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Use these two columns from page 3-3-1 of the 058-TrainingManual-E_(Rev0)090612.pdf as a bulleted list. Purpose : Lower running cost Improved life of drum unit Improved life of developing assembly Improved productivity

Improved points : Separating developing assembly from drum unit Introducing Bk drum (highly-durable type) Introducing ACR (Auto Carrier Refresh) technology Separating the laser scanner unit into 2 units (4-beam for each laser driver) (see Note)

Topic #: T3290 Print Process Specifications Voiceover Filename:

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Script: Here are the main specifications for

the image formation system. Screen Text:

Table from Slide 3 of iRA-C5051-IMAG-SUB-E-R01.ppt

Topic #: T3300 Major Assemblies Voiceover Filename:

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Script: Here are the major assemblies for

the image formation system. Screen Text:

Image from Slide 4 of iRA-C5051-IMAG-SUB-E-R01.ppt



Topic #: T3310 Bias Types Voiceover Filename:

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Script: There are 8 types of biases used on

this machine. Look at the table for details of each.

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Topic #: T3320 Bias Control Voiceover Filename:

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Script: These biases are created by 3 HVTs

and are supplied to the loads used in the printing process.

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Topic #: T3330 Drum System Voiceover Filename:

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Script: Now let’s talk about the drum

systems on the next imageRUNNERS. These machines use the roller charging method for primary charging. To prevent white spots or missing image areas caused by residual toner attached on the primary charging roller, a cleaning brush roller is added to clean the primary charging roller.

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Topic #: T3340 Drum Detection Voiceover Filename:

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Script: The detection of the drum units in

the machine are determined by monitoring the value of the current of the primary charging AC bias. If the value is less than the specified value (1mA), the machine detects this as no Drum Unit installed. If the value is the specified value (1mA) or more: detects this as Drum Unit present.

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Topic #: T3350 Old/New Drum Detection Voiceover Filename:

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Script: To detect whether the installed drum

unit is new or old these machines monitor a fuse on the drum unit. These drum units come from the factory with a fuse installed for new drum detection. The main unit checks the presence of the fuse attached to each drum (the fuse detection signal is monitored) If there is a fuse, which means not blown, the main unit clears the drum film thickness detection data of the applicable drum unit, which is kept in SRAM (IC2). Then the main unit blows the fuse (by using the fuse cut signal “H”) from the DC controller.

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Topic #: T3360 Drum Unit Troubleshooting Voiceover Filename:

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Script: The Fuse cut operation is executed

when the power is turned ON after a new Drum Unit is installed. You have to be aware of this because , if you are troubleshooting a Drum Unit and you temporarily install a new one to identify a cause of a failure in the field the fuse of the new drum will be blown and the drum thickness data is cleared. As a result, even though the original Drum Unit is installed back in the host machine again, the host machine thinks it is the new one and image fault may occur. With consideration to above matter, do not use a new Drum Unit when identifying a cause of failure unless you follow the correct procedure on the next page.

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Topic #: T3370 Drum Troubleshooting Procedure

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Script: Use the service mode COPIER >

FUNCTION > INSTALL > AINR-OFF (fuse cut extend on new drum unit) This is to disable the Drum Unit initialization executed when a new Drum Unit is inserted. In addition, fuse meltdown after Drum Unit initialization will not be executed. This is used when replacing a Drum Unit temporarily to check the image to identify the cause of a fault. When set to 0: the Initialization is executed when a new drum is installed. Fuse meltdown is executed. This is the default setting from the factory. When set to 1: the Initialization is not executed when a new drum is installed. Fuse melt down is not executed. Make sure to set this service mode to “1” only when it is necessary at servicing. Be sure to reset this service mode to “0” when service work is completed.

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Topic #: T3380 Drum Life Detection Voiceover Filename:

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Script: The Drum life is determined by the

Drum life count value. The drum life count value is calculated by the rotation time of Photosensitive Drum and application time of primary charging AC bias. The count is added to the drum count value stored in SRAM.

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Table and image from page 3-3-19 of the 058-TrainingManual-E_(Rev0)090612.pdf Note: The drum life value is based on A4 size with 5% image ratio



Topic #: T3390 Drum Speed Control Voiceover Filename:

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Script: This control is performed to keep a

uniform drum rotation speed in order to increase accuracy of the image position to help improve color displacement. The drums rotate, driven by the drum motors (M1 to M4). There is an encoder on the drum shaft, by which rotation is monitored using the two sensors (Yellow: UN31/32, Magenta: UN33/34, Cyan: UN35/36, Black: UN37/38,). This sensor counts the drum count based on a pulse, and feeds back the drum rotation speed to the drum DC controller to perform speed control adjustments.

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Topic #: T3400 Development System Voiceover Filename:

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Script: Now we will look at the developing

system. Here are the major components of this system.

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Table and image from page 3-3-11 of the 058-TrainingManual-E_(Rev0)090612.pdf



Topic #: T3410 Auto Carrier Refresh Voiceover Filename:

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Script: One of the enhancements introduced

with the C5000 is a method to supply developer, that is (toner plus carrier), to improve the life of the developing assembly. This is a control to supply developer to the developing assembly and also discharge old developer to keep an optimal amount of developer in the developing assembly. This control prevents deterioration of carrier, which can occurred due to the reuse of developer in the developing assembly. The Toner Feed Screw A & B drive when the Developing Motor (M5 to M8) drives so that the developer will be exchanged. The developer is supplied at the right time based on the ATR control result. Click Play to see this operation.

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swf_control_ACR.swf

Topic #: T3420 Toner Blocking Plate Voiceover Filename:

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Script: This control prevents the scattering

of toner on the developing cylinder due to deterioration of the developing assembly. AC Developing bias, which has been generated by HVT1, is converted to a negative DC bias on the developing sub high voltage PCB. The bias is applied to the toner-blocking electrode plate. This improves retention strength of toner on the developing cylinder.

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Topic #: T3430 Toner Container Opening Control

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Script: One of the imageRUNNER

ADVANCEs enhancements is the new toner containers without the locking mechanism. Here you can see the components that open and close the toner container. Click play to see the operation of the system. The hand in the animation is to show that the mechanism grabs, opens, rotates and closes the toner container.

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swf_toner_cap_automatic_open.swf

Topic #: T3440 Toner Supply Voiceover Filename:

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Script: Here are the major components of

the toner supply system. Most of the timing to supply toner to the hopper is based around the output of piezo sensors TS1 through TS4. When the output of TS1 through TS4 changes from a high to a low, the toner container drive motors M9 to 12 are driven to supply toner to the hopper. If the signal from TS1 through TS4 does not change back to a high the toner container drive motors M9 to M12 are driven for 2 seconds. If sensors TS1 through TS4 remain Low despite the drive of M9 to M12, then M9 to M12 will be driven for 2 seconds and then stopped for 2 seconds. This cycle will be repeated up to 20 times. The timing to supply toner to the developing assemblies is based around the output of ATR sensors TS5 through TS8. We will cover this process later in the topic. Click play to watch the entire process of toner supply to the hopper.

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Topic #: T3450 Toner Level Detection Voiceover Filename:

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Script: Look at this table for more

information on toner level detection. Screen Text:

Table from page 3-3-50 of the 058-TrainingManual-E_(Rev0)090612.pdf Note: *1: Developing Assembly toner supply count indicates the toner amount that is supplied from the Hopper Unit to the Developing Assembly.

Topic #: T3460 Waste Toner Detection Voiceover Filename:

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Script: Here are the main components of

the waste toner system. This system is to feed waste toner from the drum cleaning unit and the ITB cleaning unit to the waste toner case. The waste toner level is monitored by Waste toner full level sensor UN21. When UN21 detects that the waste tone is full, “Please prepare a waste toner case (continuous print is available)” is displayed and the Developing Assembly toner supply count is started. After approx. 1000 sheets are printed on Letter, with a dot ratio of 5% for each color “Please replace a waste toner case” is displayed and the main unit stops the operation. Click play see the operation of the waste toner system.

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swf_control_waste_toner.swf

Topic #: T3470 Transfer Separation System Voiceover Filename:

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Script: Here are the major components for

the transfer/separation system. Since you should already be ITB systems, we are just going to touch on the main item of the system.

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Topic #: T3480 Transfer Drive Configuration Voiceover Filename:

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Script: Here is the drive and control system

for the transfer. Screen Text:


Topic #: T3490 Transfer Disengagement Control

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Script: One of the enhancements to

increase the life of the transfer belt and imaging components is primary transfer roller disengagement. The primary transfer rollers for color are engaged or disengaged to increase the life of the image formation parts like the photosensitive drum and ITB. The rollers are engaged when making color prints (including mixed mode with color plus Black). The rollers are disengaged for all other printing. Drive of the primary transfer disengagement motor (M15) rotates the cam. The rotation of the cam moves the support arm up and down, which separates (disengages) the color primary transfer roller from the ITB. The Position of the primary transfer roller is detected by the primary transfer disengagement sensors (PS22 & 23). Click play to see the operation.

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swf_control_transfer_disengagement .swf MEMO: At standby, the color’s primary transfer roller is disengaged.P22 is ON (the sensor flag blocks the light) at the time of engagement while PS23 is ON (the sensor flag blocks the light) at the time of disengagement.



Topic #: T3500 ITB Displacement Correction Voiceover Filename:

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Script: This control prevents damage to the

ITB due to displacement of the ITB. The system works like this the ITB displacement sensors (PS25 to PS28) detect displacement of the ITB. The Drive of the ITB displacement control motor (M14) rotates the cam. The cam’s position is detected by the steering position sensor (PS24). Rotation of the cam moves the drive shaft up and down to tilt the steering roller. Tilt of the steering roller generates a tension difference for the ITB to cause it to move to the front or rear depending on the ITB displacement sensors (PS25 to PS28). Click play to see the system’s operation.

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swf_control_itb_displacement.swf

Topic #: T3510 Image Stabilization Control Voiceover Filename:

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Script: The imageRUNNER ADVANCE

series uses a comprehensive image stabilization system to prevent image quality issues due to environmental changes or deterioration of photosensitive drum. You can see on the DC Controller we have the following controls:

• Drum Film Thickness Detection

• D-max Control • Color Displacement

Correction Control • ATR Control • ATVC Control

Then on the main controller 2 we have the following controls:

• PASCAL Control • D-half Control • ARCDAT Control

We will cover each of these on the next few pages.

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Topic #: T3520 Drum Film Thickness Detection

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Script: This is to detect the condition of the

photosensitive drum. Every time the power is turned on and every time you make a print, the drum count value is calculated. Here are the steps of this process: Step 1: The drum count value is calculated by the monitor signal of the primary charging AC bias. Step 2: The count value calculated in step 1) above is added to the drum count value that is stored in SRAM. Step 3: The latest count value determined in step 2) above is classified to be one of the 10 levels of the drum film thickness detection data. Step 4: The determined data is compared to the existing drum film thickness detection data stored in another area of SRAM. If there is any difference between the data, the newly-determined data is overwritten on SRAM as the latest drum film thickness detection data. If there is no difference in data, the newly-determined data is not overwritten, but discarded. Since the Black Drum is the high durable type. Thickness detection is not preformed for the Black drum. The result of drum thickness detection is used to adjust the following data.

• Developing bias • Primary transfer bias • ATR patch detection result • Laser output

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Image from Slide 34 of iRA-C5051-IMAG-SUB-E-R01.ppt 1) The drum count value is calculated by the monitor signal of the primary charging AC bias. 2) The count value calculated in step 1) above is added to the drum count value that is stored in SRAM. 3) The latest count value determined in step 2) above is classified to be one of the 10 levels of the drum film thickness detection data. 4) The determined data is compared to the existing drum film thickness detection data stored in another area of SRAM. If there is any difference between the data, the newly-determined data is overwritten on SRAM as the latest drum film thickness detection data. If there is no difference in the data, the newly-determined data is not overwritten, but discarded. MEMO: Since the Bk Drum is the high durable type. The thickness detection is not preformed for the BK drum. The result of drum thickness detection is used to adjust the following data.

• Developing bias • Primary transfer bias • ATR patch detection result • Laser output



Topic #: T3530 D-max Control Voiceover Filename:

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Script: This control determines optimal

developing DC bias, primary charging DC bias, and laser power output. The DC controller creates a patch pattern in corresponding colors on the ITB. Then the DC Controller measures the patch density with the Patch Sensor (center) (UN49). Then this data is used to determine the optimal developing DC bias, primary charging DC bias, and laser power output.

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Topic #: T3540 PASCAL Control Voiceover Filename:

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Script: This control stabilizes gradation

density characteristics of the image. This control is executed when selecting [“Auto gradation correction” > “Full correction”] in the User Mode. Density characteristics of the patch patterns made by test prints are scanned by the reader to create the image density correction table. Using this table corrects image gradation density characteristics, which vary according to the environmental change or deterioration of photosensitive drum.

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Topic #: T3550 D-half Control Voiceover Filename:

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Script: This control determines optimal

image gradation. Here are the steps of this control: Step 1) The Main Controller 2 outputs the patch data of each color (Y, M, C, Bk) to the DC Controller. Step 2) The DC Controller creates the patch pattern of each color (Y, M, C, Bk) on the ITB based on this data. Step 3) The DC Controller measures the patch pattern with the Patch Sensor (center) (UN49) and returns the result to the Main Controller 2. Step 4) The Main Controller 2 executes the gradation correction to realize the ideal halftone image based on this data. In addition, this control creates the standard patches used at ARCDAT control and stores the standard data for ARCDAT according to the measurement result of UN49.

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Topic #: T3560 ARCDAT Control Voiceover Filename:

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Script: This control obtains ideal gradation

characteristics while reducing down time. The DC Controller creates a patch pattern for each color on the ITB. 3 patterns for each color for a total of 12 patterns. Then the DC Controller measures the patch patterns with the Patch Sensor (center) (UN49) and returns the results to the Main Controller 2. The Main Controller 2 compares the actual measured data with the backed up standard data for ARCDAT control. The difference after comparison is reflected to the D-half result as an offset value.

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Topic #: T3570 Color Displacement Control Voiceover Filename:

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Script: This control corrects uneven

exposure of the laser scanner unit or color displacement caused by uneven rotation of the drum or ITB. The DC Controller creates a patch pattern of each color on the ITB. Then the DC Controller compares those patterns with the standard value backed up in the DC Controller by reading the patch sensor (front, center, and rear) (UN47 to 49) and detects the amount of color displacement. Based on the detected results, the DC Controller executes correction depending on the amount of color displacement.

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Topic #: T3580 ATR Control Voiceover Filename:

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Script: This control supplies developer to

the developing assembly to keep the ideal ratio of developer in the developing assembly. The DC controller determines supplying amount of toner by 3 types of data:

• Developing Assembly Toner Supply Count

• ATR sensor • Patch sensor

When the DC controller determines that it is necessary to supply toner, the developing motors (M5 to M8) and the toner supply clutches (CL2 to CL5) are turned ON. This operation rotates the toner feeding screws A and B so that the specified amount of developer is supplied to the developing assembly. Click play to see this process.

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swf_control_atr.swf



Topic #: T3590 ATVC Control Voiceover Filename:

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Script: This control prevents transfer failure

due to environmental changes or deterioration of the primary transfer roller or the secondary transfer roller. By monitoring current values of the secondary transfer DC bias is detected. The Optimal primary charging current value is determined based on the temperature and humidity data of the environment sensor 2. Then the secondary transfer DC bias is determined for the secondary transfer roller.

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Topic #: T3600 Special Controls Voiceover Filename:

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Script: To keep the ITB cleaning blade

lubricated this machine uses 3 methods for different printing conditions. For black only printing if you have continuous prints while no toner is fed to the ITB cleaning blade, the ITB cleaning blade can be flipped or damaged. Therefore, a band of toner the full width of the ITB with a length of 1mm solid black is transferred onto the ITB to supply toner to the ITB cleaning blade. For transparency printing, a band of toner the full width of the ITB with a length of 80mm solid black is transferred onto the ITB to supply toner to the ITB cleaning blade. Color printing with a low image ratio can deteriorate toner and reduces developing performance. To prevent this symptom, average image ratio for each color is calculated by ATR control and appropriate amount of toner with a width of A4 and a length of a solid color band appropriate for deteriorated toner amount as determined by the calculation is transferred to the ITB.

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Topic #: T3610 Image Formation Fixing Voiceover Filename:

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Script: Image Formation Fixing Screen

Text: Image Formation Fixing



Topic #: T3620 On Demand Fixing Voiceover Filename:

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Script: We will finish up the image formation

topic with fixing. This machine introduces the on-demand fixing method. Some of the benefits to this system are Saving energy with a super fast warm-up time, which reduces standby electric power thanks to low heat capacity. The next benefit is High speed. We can achieve 51 pages per minute by introducing a new toner, which melts at a lower temperature and the film capable of high heat transfer. With this system, we have a greater range of supported media due to the modification of film path and Separation Guide, and image quality has also been improved as well. Here are the major components of the fixing system.

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Image from Slide 2 iRA-C5051-FIXG-SUB-E-D1.ppt

Topic #: T3630 Fixing Specifications Voiceover Filename:

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Script: Here are the main specifications for

the fixing system. Screen Text:


Topic #: T3640 Ceramic Heater Voiceover Filename:

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Script: This fixing system uses a Ceramic

heater with individual drive of the Main Heater for heating the center of the film and a Sub Heater for heating the edges of the film. The Purpose is to control temperature rise at the edge

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Topic #: T3650 Fixing Major Components Voiceover Filename:

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Script: Here are the major control

components of this fixing system. Screen Text:


Topic #: T3660 Standby Temperature Control

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Script: This fixing system allows for

something called Flying start, which allows the machine to start printing before the fixing temperature, is completely at printing temperature. This is done to reduce first print out time. You can see on the chart that printing will start at the flying start temperature but the fixing system continues to increase the temperature until the correct printing temperature is reached. You can enable or disable Flying Start using this Service Mode. (Level 2) COPIER > OPTION > FNC-SW > FLYING. A setting of 0 enables flying start, which is the factory default and a setting of 1 disables flying start.

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Topic #: T3670 Down Sequence Voiceover Filename:

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Script: To prevent temperature rise of non-

feeding area of the fixing film when continuous printing of small size paper (less than A4R of in width direction) which could result in damage to the edges of the fixing film and fixing offset, this machine incorporates a process called down sequence.

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Topic #: T3680 Down Sequence Control Voiceover Filename:

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Script: When the detected temperature of

sub thermistor 1 or 2 reaches the specified temperature or higher (250 to 260 deg C) during printing the temperature is reduced by making wider sheet-to-sheet distance to control the temperature at slightly lower than the target temperature for normal print. This means that the output speed will be lower during down sequence. For more specific information on output speeds and down sequence refer to the down sequence table in the service manual.

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Topic #: T3690 Down Sequence Service Mode

Voiceover Filename:

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Script: Because productivity is affected by

down sequence, you can alter the temps that will trigger down sequence in this service mode. You can vary the start temperature by plus or minus 20 degrees Celsius.

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Topic #: T3700 Switching Paper Sizes and Down Sequence

Voiceover Filename:

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Script: Be aware that switching paper sizes

can also trigger down sequence. Down Sequence is triggered if the detected temperature of sub thermistor 1 or 2 exceeds the specified temperature when switching to a paper, which is wider than the preceding paper. Paper pickup stops and the heater is turned off. When the specified period of time has passed since the preceding paper went through the fixing nip paper pickup will resume and the heater will be turned back on to control the fixing temperature.

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Topic #: T3710 Fixing Cooling System Voiceover Filename:

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Script: Temperature at the edge of the film

is increased when continuously making prints. Excessive temperature rise can deteriorate the film. When small size paper (A4R or shorter size in width direction) is printed, down sequence can be triggered. When making prints with paper that is A4R or longer and A3 or shorter in width direction if the film temperature exceeds the specified temperature (sub thermistor 1and 2), the fan attached near the fixing assembly sends air and cools the film to control the temperature rise. Unlike down sequence, this control will not reduce through-put because this control is executed while printing is continues. Also There is a shutter at the air vent, which moves or opens in 7 levels according to the size of the paper being fed. This feature enables air to be targeted at the optimal area on the film.

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Topic #: T3720 Film Unit Engagement and Disengagement

Voiceover Filename:

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Script: To prevent deformation of the fixing

film and pressure roller caused by heat and pressure when the drive of pressure roller is stopped, and also to improve jam recovery performance, the film unit is disengaged from the pressure roller under the following conditions:

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Image and condition bullets from page 3-4-14 of the 058-TrainingManual-E_(Rev0)090612.pdf

Topic #: T3730 Topic 3 Review Quiz Voiceover Filename:

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Script: Here are a few questions about this

topic. This is your opportunity to recap the concepts we discussed and reinforce your understanding. These questions will not be graded.

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Review Quiz Use Quiz template from the LCMS.

Note: Green highlighted text denotes no change in VO script from previous script.

Documents

Client: Canon Program:imageRUNNER ADVANCE C5000 Series ...€¦ · 10/10/2018 · imageRUNNER Advance Topic 3 eLearning Storyboard.doc Page 2 of 31. Topic #: T3050 New Reader Unit