Periodic Maintenance - Canon imageRUNNER ADVANCE DX C7700 Series Service Manual

Canon
R.

Periodic Maintenance

Some parts of the machine must be checked and/or replaced on a periodic
basis to ensure a specific level of machine performance. These parts are likely
to affect the performance once they fail even in the absence of external change
or damage. Whenever possible, plan their replacement so that it will coincide
with a scheduled service visit.
Note: All periodic maintenance shown in the below table is for reference
purposes only and are subject to change without notice. Refer to the Service
Manual for additional information.
Table 43 – Main Unit Periodic Maintenance Items
Developing Assembly Cover (Color)
Developing Assembly Cover (Black)
Pre-fixing Feed Belt
Post-secondary Transfer Sensor
Registration Sensor
Paper Width Sensor
ITB Drive Roller
ITB Steering Roller
Post Upper Duct
Shield Plate (Primary Charging
Assembly)
Shield Plate (Post Charging
Assembly)
Developing Assembly Lower Toner
Receptacle
Catch Sheet
Drum Heater Sliding Assembly
IH Unit
Fixing Inlet Guide
Feed Guide
Feed Roller/Roller
Leakage Breaker
61 Value is based on LTR sized paper. Estimated average values in the field, based on data from
supplier. Data is subject to change depending upon many factors including, without limitation,
monthly copy volume, environment, type of image printed and customer handling of the equipment.
imageRUNNER ADVANCE DX C7700 Series Service Guide
Revision 4
imageRUNNER ADVANCE DX C7700 Series Service Guide
Main Unit Periodic Maintenance
Part Name
When Photosensitive Drum Unit
When Secondary Transfer Outer
When Photosensitive Drum Unit
When the Photosensitive Drum
When Photosensitive Drum Unit
When the Fixing Film is replaced
When Secondary Transfer Outer
Estimated Interval
(Color) is replaced
Roller is replaced
When ITB/Secondary Transfer
Inner Roller is replaced
When Pre-transfer Charging
Wire is replaced
When the Primary Charging
Wire is replaced
When Pre-transfer Charging
Wire is replaced
(Black) is replaced
Unit (Color) is replaced
(Black) is replaced
Roller is replaced
Once or twice / year
Remarks
61
Clean
Clean
Clean
When Needed
Clean
Clean
Clean
Clean
Clean
Clean
Clean
Clean
Clean
Clean
Clean/
Lubricate
Clean
Clean
When Needed
Clean
When Needed
Clean
When Needed
Inspect
April 2022
Page 78