Measure Against Mottled Blank on Image Canon 5051

(1/6)

Service Bulletin

Issued by Canon Europa N.V.Copier Color

HARDWARE

Location:Inter transfer belt assemblySubject:Measure against mottled blank on image occurred when using papers of rough surface (optimization of primarytransfer current, etc)Detail:

Background: Although the reduction in thickness of ITB as a measure against mottled blank, and others wereannounced previously, this bulletin offers the following information for further improvement in images.

<Symptom>When using papers of rough surface, mottled blank may occur at the high-density area on images.<Cause>Toner tends to have too much adhesion to Inter. Transfer Belt (ITB) at the primary transfer of image. Becauseof this, if papers of rough surface are used, uneven secondary transfer of image will occur, and occasionallycausing mottle blank on output images.

* Primary Transfer Roller Set (FY7-0429-000), which is newly set up as a service part this time, shouldpreferably be used along with Inter. Transfer Belt Set (FY7-0408-000) that was previously announced.Image quality cannot be guaranteed by replacing Primary Transfer Roller Set (FY7-0429-000) only.Upgrading to DCON v33.09 or later and to System v45.02 or later is necessary to produce an effect of PrimaryTransfer Roller Set (FY7-0429-000).

Model:imageRUNNER ADVANCE C5030imageRUNNER ADVANCE C5030iimageRUNNER ADVANCE C5035imageRUNNER ADVANCE C5035iimageRUNNER ADVANCE C5045imageRUNNER ADVANCE C5045iimageRUNNER ADVANCE C5051imageRUNNER ADVANCE C5051i

Ref No.:iRAC9000-037(F2-T01-N08-10082-01)Date:November, 2010

iRAC9000-037

(2/6)

<Factory Measures>Implement the following to improve the primary transfer performance.1. Widen Nip Width [D] between Primary Transfer Roller [3] and ITB [2] to disperse the nip pressure.A. Change the spring pressure (C,M,Y,Bk) [B] of Primary Transfer Roller [3].B. Move the position of Primary Transfer Roller in the direction of [C].C. Increase the diameter of Primary Transfer Roller [3].

2. Decrease the discharge current of Primary Transfer Roller [3].A. Increase the resistance of Primary Transfer Roller [3].B. Optimize Primary Transfer Roller current. Upgrade DCON firmware to v33.09 and System firmware to v45.02.

P-1 Sample of mottled blank on image (Cyan/magenta, each color 100%)

[A] Direction of paper feeding

iRAC9000-037

(3/6)

Servicing Work:

The steps below are carried out to further improve mottled blank.When the old type Primary Transfer Roller (life: 500K images) reaches the end of life, replacement must bemade with Primary Transfer Roller Set (FY7-0429-000), not Primary Transfer Roller.

Step 1. Check to see if the thin-type Inter. Transfer Belt Set (FY7-0408-000) previously informed has beeninstalled.If it hasn't, it is recommended to install the thin-type Inter.Transfer Belt Set and Primary Transfer Roller Set tobe mentioned in Step 2 below simultaneously.

Step 2. Install Primary Transfer Roller Set (FY7-0429-000) that is newly set up as a service part.

P-2 Area around the primary transfer roller

[B] Spring pressure of Primary Transfer Roller

[C] Direction of shifting the primary transfer roller

[D] Widening of Nip Width between Primary Transfer Roller and ITB

[1] Photosensitive drum

[2] Belt

[3] Primary transfer roller

iRAC9000-037

(4/6)

*After the replacement, attach Stratification Label mentioned in 9 above on one side of ITB unit according tothe procedure document below for easy stratification.

Step 3. To optimize the primary transfer current, upgrade the version of DC controller to v 33.09.

*At this time, combination with System Software v45.02 or later is necessary.* Even when System Software is upgraded from an older version to v45.02 or later in the field, the setting valueof service mode item "ITB-TYPE" does not change automatically.Therefore, after replacement to Primary Transfer Roller Set (FY7-0429-000), the setting value of the servicemode item must be changed to '2' manually.* ITB-TYPE does not accept the setting value '2' until Dcon v33.09 or later and System v45.02 or later havebeen installed.

(Level2) COPIER > OPTION > IMG-TR > ITB-TYPE0: Old type ITB1: Only ITB is the thin (new) type2: ITB is the thin (new) type, and Primary Transfer Roller is the new type.

* The products in which the new type Primary Transfer Roller was installed during manufacturing already haveITB-TYPE set to '2' at factory shipment.* Executing RAM Clear automatically changes the setting of ITB-TYPE to '2'. Therefore, at field service, it isnecessary to rewrite the setting of this service mode according to the situation of countermeasure againstmottled blank.

<Contents>Primary Transfer Roller Set (FY7-0429-000):

1. Primary Transfer Roller 4pcs need to be replaced

2. Bushing for Bk, Y and C (Front) 3pcs need to be replaced

3. Bushing for M (Front) 1pc need to be replaced

4. Bushing for Bk, Y and C (Rear) 3pcs need to be replaced

5. Bushing for M (Rear) 1pc need to be replaced

6. Spring for Y, M and C 6pcs need to be replaced

7. Spring for Bk 2pcs need to be replaced

8. ITB Installation Auxiliary Sheet 1pc

9. Stratification Lable: 1pc 1pc

10. Grease 1pc need to be applicated

iRAC9000-037

(5/6)

Points to Note About Service Work:The products with the primary transfer roller set (FY7-0429-000) installed are not compatible with the old-typeparts of the following 1to 5.Therefore, use these parts only for the products with this measure not taken.

<Old-type parts>1. FC8-4401-000: primary transfer roller2. FU7-2449-000: compression spring (Bk)3. FU7-2450-000: compression spring (Y, M, C)4. FC8-4383-000: bushing (rear)5. FC8-4387-000: bushing (front)

When the above parts are out of stock, the parts settings for them are deleted.If it is necessary to replace a single part of them after deleting the parts setting, implement replacement with theprimary transfer roller set (FY7-0429-000) as a set.

Service Parts:

No. Parts Number Description Q'ty Fig No.

1Old

530New FY7-0408-000 INTER TRANSFER BELT SET 1->1

2

Old FC8-4401-000 PRIMARY TRANSFER ROLLER 4->0

530New FY7-0429-000

PRIMARY TRANSFER ROLLER SET

0->1

3

Old FU7-2449-000 COMPRESSION SPRING (Bk) 2->0

530New FY7-0429-000


0->1

4

Old FU7-2450-000 COMPRESSION SPRING (Y, M, C) 6->0

530New FY7-0429-000


0->1

5

Old FC8-4383-000 BUSHING (REAR) 4->0

530New FY7-0429-000


0->1

6

Old FC8-4387-000 BUSHING (FRONT) 4->0

530New FY7-0429-000


0->1

iRAC9000-037

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Affected Machines:

iR ADV C5051 UL 120V GQM30000 and later iR ADV C5051 AU 230V DZT30000 and later

iR ADV C5045 UL 120V GPQ30000 and later iR ADV C5045 AU 230V EBV30000 and later

iR ADV C5035 UL 120V GNW30000 and later iR ADV C5035 AU 230V EET30000 and later

iR ADV C5030 UL 120V GNG30000 and later iR ADV C5030 AU 230V ETM30000 and later

iR ADV C5051 EUR 230V GQN30000 and later iR ADV C5051 CN 220V EUG30000 and later

iR ADV C5051I EUR 230V GQP30000 and later iR ADV C5045 CN 220V EUL30000 and later

iR ADV C5045 EUR 230V GPU30000 and later iR ADV C5035 CN 220V EUR30000 and later

iR ADV C5045I EUR 230V GPV30000 and later iR ADV C5030 CN 220V EUW30000 and later

iR ADV C5035 EUR 230V GNX30000 and later iR ADV C5051 TW 120V EUJ30000 and later

iR ADV C5035I EUR 230V GNY30000 and later iR ADV C5045 TW 120V EUP30000 and later

iR ADV C5030 EUR 230V GNH30000 and later iR ADV C5035 TW 120V EUU30000 and later

iR ADV C5030I EUR 230V GNM30000 and later iR ADV C5030 TW 120V EUY30000 and later

iR ADV C5051 230V DZS30000 and later iR ADV C5051 120V EUF30000 and later

iR ADV C5045 230V EBU30000 and later iR ADV C5045 120V EUK30000 and later

iR ADV C5035 230V EEA30000 and later iR ADV C5035 120V EUQ30000 and later

iR ADV C5030 230V ETG30000 and later iR ADV C5030 120V EUV30000 and later

iR ADV C5051 KR 220V EUH30000 and later

iR ADV C5045 KR 220V EUN30000 and later

iR ADV C5035 KR 220V EUS30000 and later

iR ADV C5030 KR 220V EUX30000 and later

�

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Primary Transfer Roller Kit

Replacement Procedure

一次転写ローラーキット交換手順

PRINTED IN JAPAN PUB No. FT�-0546-000T-�-�T-�-�

�

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List of parts included in the package

[1]

[2] [3]

[4] [5]

[6] [7] [8] [9]

[�] Primary Transfer Roller 4 [6] YMC Spring 6[�] BkYC Shaft Support (front) 3 [7] Bk Spring* �[3] M Shaft Support (front)* � [8] ITB Installation Auxiliary Sheet �[4] BkYC Shaft Support (rear) 3 [9] New/Old Parts Indientification Label �[5] M Shaft Support (rear)* � [�0] grease �*: Method to distinguish new and old parts, see next page for details.

F-�-�F-�-�

T-�-�T-�-�

Checking the PartsSince the replacement parts are similar to each other, distinguish method is described below.

Old Parts New Parts (Bk) New Parts (YMC)Spring

No marking. Blue marking on the side.Shorter compared to the springs for YMC.The edge of the spring is bent.

Blue marking on the side.Longer compared to the spring for Bk.

Old Parts New Parts (M) New Parts (BkYC)Shaft Support (front)

[A] [B] [C]

No rib.Symmetric.Shape at the back side is [A].There is a groove on the projected part.

2 ribs.Asymmetric.Shape at the back side is [B].There is no groove on the projected part.M mark on the rear side.

1 rib.Asymmetric.Shape at the back side is [C].There is no groove on the projected part.

T-�-3T-�-3

3

3

Old Parts New Parts (M) New Parts (BkYC)Shaft Support (rear)

[A] [B] [C]

No rib.Symmetric.Shape at the back side is [A].There is a groove on the projected part.

2 ribs.Asymmetric.Shape at the back side is [B].There is no groove on the projected part.M mark on the rear side.

1 rib.Asymmetric.Shape at the back side is [C].There is no groove on the projected part.

T-�-4T-�-4

Construction of this DocumentIn this document, procedure for replacing the Primary Transfer Roller is described.This document roughly consists of the following steps.

Checking the VersionRemoving the ITB UnitRemoving the ITB Cleaning UnitRemoving the ITBRemoving the Primary Transfer Roller (Bk)Removing the Primary Transfer Roller (YMC)Reinstalling the ITB

•••••••

4

4

Before Replacing the Primary Transfer Roller

Checking the Version�) Upgrade the machine to the following versions or later: MN-CON: Ver.45.0�, D-CON:

Ver.33.09.�) In service mode, select COPIER>OPTION>IMG-TR>ITB-TYPE, and change the setting

from 0 to �.3) Turn OFF the machine.

5

5

Removing the Primary Transfer Roller

Removing the ITB UnitOpen the Front Cover, Right Lower Cover and Right Upper Cover

Remove the ITB Cover.� screws (loosen)

CAUTION:

Do not touch the ITB surface.

When installing the ITB Cover, be sure to push it to the left. If the pushing is insufficient, the plate is not inserted to the slit of the ITB Cover, which may cause the damage of the sensor.

••

•

••

F-�-�F-�-�

F-�-3F-�-3

1) Check that the arrow of ITB Sub Pressure Release Lever is aligned with the triangle mark.(If it is not aligned, adjust the arrow of lever to the triangle mark.)

Triangle markTriangle mark

ITB sub pressurerelease lever

ITB sub pressurerelease lever

�) Turn the ITB Pressure Release Lever in the arrow direction until the protrusion of grip is aligned with the triangle mark on the plate to release the pressure.

ITB pressure release lever

CAUTION:

Before operating the ITB Pressure Release Lever, check that the Right Lower Cover is open.

F-�-4F-�-4

F-�-5F-�-5

6

6

3) Remove the � connectors.

x2

CAUTION:

When pulling out the ITB Unit, be sure not to lower the ITB Pressure Release Lever below the position where clicky sense is felt. If the ITB Unit is pulled out while the lever is lowered, the ITB is scraped by the Plate and this may cause to make scratches on the ITB surface.

Click position

Not to lower the ITB Pressure Releace Leverbelow the position where clicky sense is felt.

ITB pressure release lever

F-�-6F-�-6

CAUTION:

When pulling out the ITB Unit, it may drop because it does not click at stop position if pulled out while lifting it. Thus, be careful of pulling it out.

4) Pull out the ITB Unit up to the stop label position flatly.� screws

Stop label position

x2

5) Hold the ITB Unit as show in the below figure, and remove in the direction of the arrow

•

F-�-7F-�-7

F-�-8F-�-8

7

7

Removing the ITB Cleaning Unit

NOTE: By pushing the ITB toward rear side, there will be a clearance between the ITB and the ITB Cleaning Unit, so the unit can be removed easily.

�) Hold the left and right grip and remove the ITB Cleaning Unit in the direction of the arrow.� screws

x2

�) Place the removed ITB Cleaning Unit on the paper.

•

F-�-9F-�-9

F-�-�0F-�-�0

Removing the ITB�) Turn over the ITB Unit.�) Remove the Push Slider.

� stop ring

3) Pull the ITB Pressure Release Lever to the front.4) Remove the harness.

3 wire saddles� edge saddle

x4

•

••

F-�-��F-�-��

F-�-��F-�-��

8

8

5) Remove the rear pin.� screw

NOTE: Place the ITB cover upside down on the place where the ITB Unit will be stood.

•

F-�-�3F-�-�3

6) Lift the ITB and stand it on the ITB Cover.

CAUTION:

Make sure that it is removed from the front and rear hooks.Make sure to align the claw of the ITB Cover with the cut-off of protection sheet.

••

� claws

x2

Hooks

ITB cover

Claws

Claw

•

F-�-�4F-�-�4

9

9

7) Pull out the front pin.

NOTE: To lock the pressure, pull out the pin while holding the ITB Unit with hand.

� screw

8) Bend the Secondary Transfer Inner Roller Unit by 90 degree and reinstall it with the pin removed in step 7).

•

F-�-�5F-�-�5

F-�-�6F-�-�6

9) Insert papers as shown in the figure to prevent the ITB getting damage by the plate when removing the ITB.

�0)Hold the ITB within �0mm from the edge and remove it upward.

10mm

10mm

F-�-�7F-�-�7

F-�-�8F-�-�8

�0

�0

Removing the Primary Transfer Roller (Bk)

CAUTION:

Do not touch the surface of Drive Roller, Secondary Transfer Inner Roller and Primary Transfer Roller as it may cause the image failure.

�) Pull out the pin, make the Secondary Transfer Inner Roller Unit straight and install the removed pin.

F-�-�9F-�-�9

�) Remove the ITB Unit from the ITB Cover and place it onto the paper in the position where the roller is placed upside.

� claws

Paper

ITB unit

ITB cover

Claws

x2

3) While holding the front shaft support, pinch the claw and remove the Disengagement/Engagement Arm.

Stopper Shaft support

4) Remove the Primary Transfer Roller (Bk).� shaft support� spring

Spring

Primary transfer roller (Bk)

Shaft support

•

••

F-�-�0F-�-�0

F-�-��F-�-��

F-�-��F-�-��

��

��

5) Remove the Shaft Support and the spring at rear side in the same way. At that time, be careful not to bend the Plastic Film.� shaft support� spring

CAUTION: Checking the Replacement Part for Bk

In case that the new and old parts are mixed up, be sure to pick up the part for Bk by referring to the list of contents.

Replacement parts for Bk are as follow.

name shape feature NumSpring (Bk) Blue marking on the

side.Shorter compared to the springs for YMC.The edge of the spring is bent.

�

Shaft support (front)

front side back side

[C]

White.Common with CY.1 rib.Asymmetric.Shape at the back side is [C].There is no groove on the projected part.

�

Shaft support (rear)

[C]


BlackCommon with CY.1 rib.Asymmetric.Shape at the back side is [C].There is no groove on the projected part.

�

T-�-5T-�-56)Apply appropriate amount (approx. 4mm-diameter) of conductive grease (FY9-60�9-000)

on the Shaft Support of the replacement part (see the figure below).

••

7) Install the Primary Transfer Roller by using the replacement parts.

NOTE: There is no particular direction for the Primary Transfer Roller installation.

CAUTION:

Wind paper on the Primary Transfer Roller (Bk) and without touching the surface of the roller.Do not touch the roller surface.

Primary transfer roller (BK)

Paper

•

•

CAUTION:

Hold the stopper with finger lightly after installation to check that the claw is surely installed.

��

��

Removing the Primary Transfer Roller (C,M,Y)

NOTE: This procedure describes the steps for Primary Transfer Roller (C). Go through the same procedure for M and Y.

1) Turn the ITB Sub Pressure Release Lever to make the Primary Transfer Roller (C,M,Y) lifted.

ITB sub pressure release lever

Primary transfer roller(C) Primary transfer roller(M) Primary transferr oller(Y)

�) While holding the front shaft support, pinch the claw and remove the Disengagement/Engagement Arm.

Disengagement/engagement arm

Boss

Claw

Shaft support

F-�-�3F-�-�3

F-�-�4F-�-�4

3) While holding the shaft support, remove the stopper from the boss.

Stopper

Boss

Shaft support

4) Remove the Primary Transfer Roller (C).� shaft support� spring

Transfer roller (C)Spring

Shaft support

5) Remove the Shaft Support and the spring at rear side in the same way. At that time, be careful not to bend the Plastic Film.� shaft support� spring

••

••

F-�-�5F-�-�5

F-�-�6F-�-�6

�3

�3

CAUTION: Checking the Replacement Part for C and Y

In case that the new and old parts are mixed up, be sure to pick up the parts by referring to the list of contents.

The parts used for C and Y differ from its for M so be sure to pick up the correct parts.

Replacement parts for C and Y are as follow.

name shape feature NumSpring (C,Y) Blue marking on the

side.Longer compared to the springs for Bk.

4



[C]

White.Common with BkCY.1 rib.Asymmetric.Shape at the back side is [C].There is no groove on the projected part.

�


[C]


BlackCommon with BkCY.1 rib.Asymmetric.Shape at the back side is [C].There is no groove on the projected part.

�

T-�-6T-�-6

CAUTION: Checking the Replacement Part for M

In case that the new and old parts are mixed up, be sure to pick up the part for Bk by referring to the list of contents.

The part used for M differs from those for C and Y so be sure to pick up the correct parts.

Replacement parts for M are as follow.

name shape feature NumSpring (Bk) Blue marking on the

side.Longer compared to the springs for Bk.

�



[B]White.Common with CY.2 ribs.Asymmetric.Shape at the back side is [B].There is no groove on the projected part.M mark on the rear side.

�


[B]


BlackCommon with CY.2 ribs.Asymmetric.Shape at the back side is [B].There is no groove on the projected part.M mark on the rear side.

�

T-�-7T-�-7

�4

�4

6) Apply appropriate amount (approx. 4mm-diameter) of conductive grease (FY9-60�9-000) on the Shaft Support of the replacement part (see the figure below).

For Cyan and Yellow

For Magenta

NOTE: There is no particular direction for the Primary Transfer Roller installation.

CAUTION:

Wind paper on the Primary Transfer Roller (C) and without touching the surface of the roller.Do not touch the roller surface.

Primary transfer roller (C)

Paper

•

•

F-�-�7F-�-�7

F-�-�8F-�-�8

CAUTION:

After installing the Primary Transfer Roller (C,M,Y), turn the ITB Sub Pressure Release Lever to make sure that the Primary Transfer Roller (C,M,Y) moves up and down.After checking, be sure to make the Primary Transfer Roller (C,M,Y) lowered position.


Primary transfer roller (C) Primary transfer roller (M) Primary transfer roller (Y)

•

•

�5

�5

Reinstalling the ITB1) Check that the ITB Sub Pressure Release Lever is in the below position.


�) Stand the ITB Unit on the ITB Cover.� claws

x2

ITB cover

Claws

Claw

3) Place papers on the ITB Cover to prevent bending of the ITB because pressure is applied to a point when installing the ITB.

•F-�-�9F-�-�9

F-�-30F-�-30

4) Cover the ITB Installation Auxiliary Sheet included in the package as shown in the figure. (Place the slant area to the ITB Motor side.) The framed area is the area where the ITB is easily damaged, so be sure that the area is covered with the ITB Installation Auxiliary Sheet.

Slant Area

Mold is covered

with the sheet

5) Install the ITB. Bring the ITB down slowly, and be careful not to bend it when bringing it down fully.At that time, be sure to hold within 10mm from the edge of the ITB.After installing the ITB, remove the ITB Installation Auxiliary Sheet.

F-�-3�F-�-3�

F-�-3�F-�-3�

�6

�6

6) Remove the pin, and move the Secondary Transfer Inner Roller Unit toward the [�] direction to take up the slack of the belt.

7) Put the ITB under the Belt Retainer Sheet, bring the ITB Displacement Sensor Flag into contact with the ITB edge, and then, align the marking line with the position of the ITB.

Marking LineITB Displacement sensor flagBelt Retainer Sheet

F-�-33F-�-33

F-�-34F-�-34

CAUTION:

When installing the ITB, be sure that the Plastic Film on the ITB Unit is inside of the ITB.

8) Return the Secondary Transfer Inner Roller Unit to straight, and then install the pin removed

� screw•

F-�-35F-�-35

�7

�7

9) Remove the ITB Unit from the ITB Cover and install it to the plate.� claws

x2

�0)Install the rear pin.� screw

11)Push the ITB Pressure Release Lever and install the Bush Slider to the boss.� stop ring

•

•

•

F-�-36F-�-36

F-�-37F-�-37

F-�-38F-�-38

CAUTION:

Make sure that there is no gap between the ITB Pressure Release Lever and the Plate.

隙間

��)Install the harness.� edge saddle3 wire saddles

CAUTION:

Make sure that the shaft is fixed to the fixing member.

••

�8

�8

CAUTION:

Make sure that the hook is fixed to the plate.

�3) Turn over the ITB Unit.�4) Install the ITB Cleaning Unit.

CAUTION: When replacing ITB with a new one, after installing the ITB Cleaning Unit to the ITB Unit, apply tospearl on the whole area indicated in the figure below.

When applying tospearl, be careful not to scatter it on inside of the ITB, the Drive Roller and the Secondary Transfer Inner Roller.

If it is scattered on inside of the ITB, the Drive Roller or the Secondary Transfer Inner Roller, wipe it with lint-free paper moistened with alcohol while rotating the motor by hand. At this time, turn the motor counterclockwise and do not turn it clockwise.

CAUTION:

When replacing ITB with a new one, affix the label to the specific position near the Waste Toner Ejection Mouth of the ITB Cleaning Unit after the ITB Unit is installed.

When affixing the new label, be sure to remove the old label and replace with the new one on the same position.

15)Affix the label for identifying the new and old parts to the position indicated in the figure below [1].

[1]

�6)Turn ON the power of the host machine.17) Execute the ITB equilibrium position detection in service mode (COPIER > FUNCTION >

MISC-P > ITB-INT). This service mode will take approx. � to 3 minutes.18)When the machine is in standby condition, execute the “Auto gradation correction”.

F-�-39F-�-39

Measure Against Mottled Blank on Image Canon 5051

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Transcript of Measure Against Mottled Blank on Image Canon 5051