Canon imagePRESS 1135 Series Service Manual page 1407

Title Mottled image
Explaination [Detailed explanation]
In the low humidity environment, mottled image might appear in the second page
when solid black or half tone duplex printing is performed. If the similar symptom
occurs, follow the steps below.
[Cause]
Assumed cause is lack of transfer current.
[Field Remedy]
1. Service Mode > COPIER > Display > ANALOG > ABS-HUM2, check the inside
moisture content.
2. Service Mode > COPIER > Adjust > HV-TR > 2TR-TGT1 to 8, corresponding to the
inside moisture content checked on the step 1, increase the value one step each
while checking whether the symptom improvement at each step. As the value is
changed by 1, current is increased/decreased by 5uA.
0.63g/m3 or below : TR-TGT1
0.64 to 1.72g/m3 : 2TR-TGT2
1.73 to 5.79g/m3 : 2TR-TGT3
5.8 to 8.89g/m3 : 2TR-TGT4
8.9 to 14.9g/m3 : 2TR-TGT5
15 to 17.9g/m3 : 2TR-TGT6
18 to 21.5g/m3 : 2TR-TGT7
21.6g/m3 or above : 2TR-TGT8
[Reference]
If the transfer current is excessively increased, density loss due to excessive transfer
might occur.
8
Service Mode > Situation Mode > Troubleshooting
8 Service Mode > Situation Mode > Troubleshooting
Title Streaks image in sub scanning direction
Explaination [Detailed explanation]
Streaks image in sub scanning direction is occurred.
[Cause]
As the Drum cleaning blade was wrongly faced and installed, the Toner slipped
beneath and got into the Developing assembly to damage the Developing sleeve.
[Field Remedy]
1. Install the Drum cleaning blade correctly
2. Remove the Toner inside the Developing assembly to replace the Developing
sleeve unit.
[Reference]
The following is the steps after the replacement of the Developing sleeve unit.
1) Open Front left cover and Front right cover before turning Main Power SW on.
2) Turn Main Power SW on.
3) Disable pre-printing rotation with a service mode
• Turing off of pre-printing rotation: Change setting of "Service Mode> Mode
List> COPIER> Function> INSTALL> AINR-OFF" from 0 to 1.
4) Close the front left cover and front right cover.
5) After you close the front cover, wait for 5 seconds (or more) and perform the
following.
[Caution]
If 5 seconds (or more) are not passed, the toner is not replenished.
6) Execute toner supply.
• Service Mode> Mode List> COPIER> Function> INSTALL> TONER-S
7) Execute cleaning of charging wire
• Service Mode> Mode List> COPIER> Function> CLEANING> WIRE-CLN
8) Execute Light intensity compensation and Background correction.
• Light intensity compensation: Service mode> Mode List> COPIER> Function>
MISC-P> P-LED
• Background correction: Service mode> Mode List> COPIER> Function>
MISC-P> P-BASE
9) Execute Patch detection control (Contrast setting)
• Service mode> Mode List> COPIER> Function> MISC-P> INTR-EX
10) Turn Main Power SW off/on.
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