Removing The Primary Transfer High-Voltage Pcb Unit - Canon imageRUNNER ADVANCE C255 Series Service Manual

4. Be sure to remove the Environment Sensor [1] when replacing the Secondary Transfer High-voltage PCB/Developing
High-voltage PCB Unit.
NOTE:
• Be sure to install the removed Environment Sensor after replacing the Secondary Transfer High-voltage PCB/Developing
High-voltage PCB Unit.
• The completed assembly of the Secondary Transfer High-voltage PCB/Developing High-voltage PCB Unit is shown below.
● Actions after assembly
Execute Auto Adjust Gradation.
Settings/Registration > Adjustment/Maintenance > Adjust Image Quality > Auto Adjust Gradation > Full Adjust

Removing the Primary Transfer High-voltage PCB Unit

■ Preparation
1. Pull out the ITB Unit for about 10 cm.
If your hand or the PCB comes in contact with the ITB Cleaning Unit when removing the Primary Transfer High-voltage PCB
Unit in step 6, the ITB may be damaged.
2. "Removing the Waste Toner Container" on page 221
3. "Removing the Drum Unit (Y/M/C/Bk)" on page 222
4. "Removing the Rear Cover 1" on page 140
5. "Removing the Left Lower Cover" on page 144
4. Parts Replacement and Cleaning
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