Canon i-SENSYS MF8550Cdw
Troubleshooting. Recurring faulty image
Foreign matters or lines on rollers along the paper feed path may cause faulty images in the vertical scanning direction.
Field action
See the roller pitches listed in the tables below to clean and/or replace the corresponding parts.
• MF8500 series
| Roller pitch | Parts |
|---|---|
| about 44 mm | Registration roller |
| about 58 mm | Secondary transfer external roller |
| about 75 mm | Photosensitive drum |
| about 22 mm | Developing cylinder |
| about 58 mm | Fixing film |
| about 63 mm | Pressure roller |
| about 78 mm | ITB (drive roller, secondary transfer internal roller) |
• MF8200 series
| Roller pitch | Parts |
|---|---|
| about 44 mm | Registration roller |
| about 57 mm | Secondary transfer external roller |
| about 27 mm | Primary transfer roller |
| about 76 mm | Photosensitive drum |
| about 22 mm | Developing cylinder |
| about 57 mm | Fixing film |
| about 57 mm | Pressure roller |
| about 634 mm | ITB |