Canon imagePRESS 1135 Series User manual

imagePRESS 1135 /1135+ Series
Image Banding
Troubleshooting Guide
COPYRIGHT ©2012 CANON INC.
CANON imagePRESS 1135 Series PRINTED IN U.S.A.
April 27, 2012
Rev. 0

Remedy for Image Trouble in iPR1135 Series
■ Uneven Densit
y
Ima
g
e (Shock Ima
g
e)
Paper type
Product name iPR1135 iPR1125 iPR1110 iPR1135 iPR1125 iPR1110 iPR1135 iPR1125 iPR1110 iPR1135 iPR1125 iPR1110 The timing of occurrence Assumed cause Work procedure
A3 thick paper A3 plain paper LDR thick paper LDR plain paper
Approx.
12.3mm
Approx.
12.3mm
Approx.
12.3mm
Approx.
12.3mm
Approx.
12.3mm
Approx.
12.3mm
Approx.
12.3mm
Approx.
12.3mm
Approx.
12.3mm
Approx.
12.3mm
Approx.
12.3mm
Approx.
12.3mm
When the disengagement
of the Registration Roller
during secondary transfer
of the image
Failure in the Active Registration Uni
t
Refer to Work procedure 1-1Where on the paper does
the image failure occur?
(Distance from the leading
edge of the paper?)
Positionofthe
poor image
Approx.
54.6 mm
Approx.
9.4 mm
- Approx.
119.3 mm
Approx.
96.7 mm
Approx.
55.5 mm
Approx.
42.8 mm
- - Approx.
107.5 mm
Approx.
84.9 mm
Approx.
43.7 mm
When the leading edge of
the paper enters the
Secondary Transfer Unit
during exposure of the
drum
- Misalignment of the fixing position
or a loose Fixation Screw of the ITB
Unit, Process Unit or the Laser
Scanner Unit
-Pressurization error of the
Secondary Transfer Roller
Refer to Work procedure 1-2
Positionofthe
poorimage
Approx.
66.9 mm
Approx.
21.7 mm
- Approx.
131.6 mm
Approx.
109.0 mm
Approx.
67.8 mm
Approx.
55.1 mm
Approx.
9.9 mm
- Approx.
119.8 mm
Approx.
97.2 mm
Approx.
56.0 mm
When the disengagement
of the Registration Roller
during exposure of the
drum
Failure in the Active Registration Uni
t
Refer to Work procedure 1-3
Approx.
120.8 mm
Approx.
75.6 mm
- Approx.
185.5 mm
Approx.
162.9 mm
Approx.
121.7 mm
Approx.
109.0 mm
Approx.
63.8 mm
- Approx.
173.7 mm
Approx.
151.1 mm
Approx.
109.9 mm
When the leading edge of
the paper enters the Fixing
Misalignment of the fixing position or
a loose Fixation Screw of the Frame
Refer to Work procedure 1-4
Positionofthe
poorimage
120
.
8
mm
75
.
6
mm
185
.
5
mm
162
.
9
mm
121
.
7
mm
109
.
0
mm
63
.
8
mm
173
.
7
mm
151
.
1
mm
109
.
9
mm
the
paper
enters
the
Fixing
Roller during primary
transfer of the image
a
loose
Fixation
Screw
of
the
Frame
Body, Process Unit or ITB, or
abnormality in the spring of the
Primary Transfer Assembly
Approx.
227.2 mm
Approx.
227.2 mm
Approx.
227.2 mm
Approx.
227.2 mm
Approx.
227.2 mm
Approx.
227.2 mm
Approx.
227.2 mm
Approx.
227.2 mm
Approx.
227.2 mm
Approx.
227.2 mm
Approx.
227.2 mm
Approx.
227.2 mm
When the leading edge of
the paper enters the Fixing
Roller during secondary
transfer of the image
Hard heavy paper is used. Refer to Work procedure 1-5
t
rans
f
er o
f
th
e
i
mage
Approx.
281.8 mm
Approx.
236.6 mm
Approx.
152.8 mm
Approx.
346.5 mm
Approx.
323.9 mm
Approx.
282.7 mm
Approx.
270.0 mm
Approx.
224.8 mm
Approx.
141.0 mm
Approx.
334.7 mm
Approx.
312.1 mm
Approx.
270.9 mm
When the leading edge of
the paper enters the Fixing
Roller during exposure of
the drum
Misalignment of the fixing position or
a loose Fixation Screw of the Frame
Unit, Process Unit or the Laser
Scanner Unit
Refer to Work procedure 1-6
A
A
A
A
A
A
A
A
A
A
A
A
Wh th t ili d f
Di t ti f th ITB B lt l
A
pprox.
313.6 mm
A
pprox.
268.4 mm
A
pprox.
184.6 mm
A
pprox.
378.3 mm
A
pprox.
355.7 mm
A
pprox.
314.5 mm
A
pprox.
301.8 mm
A
pprox.
256.6 mm
A
pprox.
172.8 mm
A
pprox.
366.5 mm
A
pprox.
343.9 mm
A
pprox.
302.7 mm
Wh
en t
h
e tra
ili
ng e
d
ge o
f
the paper passes through
the Secondary Transfer
Roller during primary
transfer of the image
Di
stort
i
on o
f
t
h
e
ITB
B
e
l
t or a
l
oose
Fixation Screw of the ITB Unit Refer to Work procedure 1-7

Flow of Remedy for Each Type of Image Failure in iPR1135 series
■Banding Image & Soiling Image ( Appears in interval )
Location Assumed cause Work procedure
Approx. 50.3mm
Primary Transfer
Roller
Soiling/damage on the Primary Transfer
Roller
Refer to Work procedure 2-1
Approx. 62.8mm
Feed Roller Soiling/damage on the Feed Roller Refer to Work procedure 2-2
Approx. 62.8mm
Secondary Transfer
Inner Roller
Soiling/abnormal wear on the Secondary
Transfer Inner Roller
Refer to Work procedure 2-3
Approx. 76.3mm
Secondary Transfer
Outer Roller
The end of life of the Secondary Transfer
Outer Roller
Refer to Work procedure 2-4
Approx. 84.3mm
Developing Upper
Cylinder
The distance between the Photosensitive
Drum and the Developing Upper Cylinder is
out of the specified range.
Refer to Work procedure 2-5
Approx. 102.4mm
Steering Roller Soiling/wear on the Steering Roller Refer to Work procedure 2-6
Approx. 188.5mm
Pressure Roller The end of life of the Pressure Roller Refer to Work procedure 2-7
Approx. 113.1mm
External Heat Roller The end of life of the External Heat Roller Refer to Work procedure 2-8
Approx. 120.1mm
Developing Lower
Cylinder
The distance between the Photosensitive
Drum and the Developing Lower Cylinder is
out of the specified range.
Refer to Work procedure 2-9
Approx. 125.0mm
ITB Drive Roller Soiling/damage on the ITB Drive Roller Refer to Work procedure 2-10
Approx. 251.3mm
Fixing Roller The end of life of the Fixing Roller Refer to Work procedure 2-11
Approx. 340.7mm
Photosensitive Drum Uneven rotation of the Photosensitive Drum Refer to Work procedure 2-12
Remarks:
If the image failure persists after performing the foregoing remedy, check the parts shown
below. If the part is damaged or deformed, replace it with a new one.
_ If the ITB [N] is damaged or bent, replace it with a new one.
_ If the Photosensitive Drum Cleaning Magnet Roller [O] is damaged, replace the
Photosensitive Drum Cleaning Unit.
_ If the ITB Cleaning Magnet Roller [P] is damaged, replace the ITB Cleaning Unit.
Refer to Work procedure 2-13
Where on the paper does the image failure occur?
(Distance appears in interval ?)
Position of the
poor image

Section 1 - Uneven Density Image (Shock Image)

< Work procedure 1-1>
1/ 7
<Remedy>
_Check that the Engagement/Disengagement Cam of the Registration Slave Roller rotates
smoothly. (A loosened screw, a misaligned cam, etc.) [A],
_Check that the bearing at the Engagement/Disengagement Arm of the Registration Slave Roller
is rotating smoothly. [B],
_Check that the Drive Belt of the Registration Drive Roller rotates smoothly. [C],
_Check the connectors between the Registration Motor (M26) and the Registration/Duplexing
Driver PCB. [D]
<Detailed work procedure>
1) Open the Front Left Cover and the Front Right Cover.
2) Pull out the Fixing Feed Unit.
3) Open the duplex feed unit.

< Work procedure 1-1>
2/ 7
4) Remove the 2 knobs.
5) Remove the front cover.
- 4 screws

< Work procedure 1-1>
3/ 7
6) Remove the cable.
- 7 connectors
- 10 wire saddles
7) Remove the plate.
- 1 screw
8) Remove the connector.

< Work procedure 1-1>
4/ 7
9) Remove the registration unit.
- 4 screws
10) Remove the Registration Roller Cover [1].
- 1 Screw [2]

< Work procedure 1-1>
5/ 7
<Check that the Engagement/Disengagement Camof the RegistrationSlave Roller rotates smoothly. (A
loosenedscrew,a misaligned cam, etc.) [A] >
11) Rotate the Engagement/Disengagement Cam [1] of the Registration Slave Roller to check that the
rotation is smoothly conveyed to the Registration Slave Roller Unit [2] and check the cam [1] for any
abnormality.
12) Check the 3 Fixation Screws [3] securing the Engagement/Disengagement Cam of the Registration
Slave Roller for looseness.
13) If abnormality is found, replace the faulty part.

< Work procedure 1-1>
6/ 7
< Check that the bearingat the Engagement/DisengagementArm oftheRegistrationSlave Rolleris
rotatingsmoothly. [B] >
14) Check that the E-ring [1] has not come off.
15) Rotate the bearing [2] at the Engagement/Disengagement Arm of the Registration Slave Roller, and
check that it rotates smoothly.
< Check that the Drive Belt of the Registration Drive Roller rotates smoothly. [C] >
16) Check that the Drive Belt [3] of the Registration Drive Roller rotates smoothly.
17) If abnormality is found, replace the faulty part.

< Work procedure 1-1>
7/ 7
18) Turn the Registration Unit to allow access to its bottom, and check that the connector [1] of the
Registration Motor is connected properly and that the harness [2] of the Registration Motor is free of
damages.
19) If abnormality is found, replace the faulty part.
< Check the connectors between the Registration Motor (M26) and the
Registration/Duplexing Driver PCB. [D] >
20) Install the removed parts in reverse order, and check the 7 connectors between the Registration Motor
(M26) and the Registration/ Duplexing Driver PCB for disconnection and abnormality.
21) If abnormality is found, replace the faulty part.
22) Install the removed parts in reverse order.

< Work procedure 1-2>
1/ 19
<Remedy>
_Check the Fixation Screws of the ITB Positioning Plate for any looseness or deformation. [A]
_Check the Fixation Screws of the ITB Positioning Shaft Supports for any looseness or
deformation, and check the ITB Positioning Shaft Supports and the pins of the ITB Positioning
Plate for any damage. [B]
_Check the Fixation Screws of the Process Unit for any looseness. [C]
_Check the Pressure Spring of the Secondary Transfer Roller for any abnormality. [D]
_Check the Shaft Support Members for any damage. [E]
_Check the location to install the Laser Scanner Unit for any abnormality. [F]

< Work procedure 1-2>
2/ 19
<Detailed work procedure>
1) Open the front left cover and the front right cover.
Check the Fixation Screws of the ITB Positioning Plate for any looseness or deformation.
[A]
2) Remove the process unit cover.
3) Turn the ITB release lever in the direction of the arrow.
4) Check the 2 Fixation Screws [1] of the ITB Positioning Plate for any looseness or abnormality.
5) If abnormality is found, replace the faulty part.
6) Install the removed parts in reverse order.

< Work procedure 1-2>
3/ 19
1) Open the front left cover and the front right cover.
Check the Fixation Screws of the ITB Positioning Shaft Supports for any looseness or
deformation, and check the ITB Positioning Shaft Supports and the pins of the ITB
Positioning Plate for any damage. [B]
2) Remove the process unit cover.
3) Remove the ITB positioning plate.
4) Check the 4 Fixation Screws [1] of the ITB Positioning Shaft Supports, the 4 ITB Positioning Shaft
Supports [2], and the 4 pins [3] of the ITB Positioning Plate for any abnormality.
5) If abnormality is found, replace the faulty part.
6) Install the removed parts in reverse order.
1) Open the Front Left Cover and the Front Right Cover.
Check the Fixation Screws of the Process Unit for any looseness. [C]
2) Remove Process Unit Cover.
3) Check the 4 Fixation Screws [1] of the Process Unit for any looseness.
4) If abnormality is found, replace the faulty part.
5) Install the removed parts in reverse order.

< Work procedure 1-2>
4/ 19
1) Open the Front Left Cover and the Front Right Cover
Check the Pressure Spring of the Secondary Transfer Roller for any abnormality. [D]
2) Pull Out Fixing Feed Unit
3) Remove the Secondary Transfer Outer Unit.
4) Remove the 2 screws.
5) Lift the post-secondary transfer guide and put it down on front.
Caution：
Since the harness is connected to the post-secondary transfer guide, be careful not to pull it forcibly.
6) Remove the 2 stop rings.

< Work procedure 1-2>
5/ 19
7) With pushing the secondary transfer holder, remove the 2 arms one-by-one.
8) Remove the secondary transfer outer roller assembled with the 2 secondary transfer holders (with spring)
to the upper.
9) Remove the 2 secondary transfer holders (with spring) from the secondary transfer outer roller.

< Work procedure 1-2>
6/ 19
10) When abnormality is found in the installation of the 2 Pressure Springs [1] of the Secondary Transfer
Roller such as being bent or not properly put on the mount of the spring, correct the deformation of the
springs or their installation. If abnormality is not solved, replace the faulty part.
11) Install the removed parts in reverse order.
Caution : Caution at installation
Make sure to install it in the position where the groove on the metal part of secondary transfer outer roller is
placed to the rear side of the secondary transfer outer unit.

< Work procedure 1-2>
7/ 19
1) Open the Front Left Cover and the Front Right Cover.
Check the Shaft Support Members for any damage: Secondary Transfer Unit [E-1]
2) Pull Out Fixing Feed Unit.
3) Remove the Secondary Transfer Outer Unit.
4) Check the 4 Positioning Pins [1] of the Secondary Transfer Outer Unit for any abnormality.
5) If abnormality is found, replace the faulty part.
6) Install the removed parts in reverse order.
1) Open the Front Left Cover and the Front Right Cover.
Check the Shaft Support Members for any damage: Frame body of the ITB Unit [E-1]
2) Remove Process Unit Cover.
3) Pull Out ITB Unit.
CAUTION:
Be sure to pull out the Fixing Feed Unit and ITB Unit to the position where latch is locked.
Reason: Disengagement between the Positioning Pin of the Secondary Transfer Outer Unit and Shaft
Support Member of the frame body of the ITB Unit becomes insufficient, and it may cause damage when
assembling the Intermediate Transfer Belt Unit.
4) Remove ITB Cleaning Unit.