Adjustments; Adjustment Point; When Adjustment Is Required; Tools Required For Adjustment - Canon BJC-5000 Service Manual

Part 5: Maintenance

5. ADJUSTMENTS

5.1 Adjustment Point

Only the distance (head gap) between the BJ cartridge's nozzles and platen needs to be
adjusted to the designated value (approximately 1.9mm) to ensure optimum printing
quality. This adjustment is done by moving the cartridge guide frame fixing position
forward or backward.
The adjustment is necessary only when loosening the red screw which secures the
carriage guide frame.
BJ Cartridge

5.2 When Adjustment is Required

If the carriage guide frame fixed to the printer frame is repositioned, the head gap must
also be adjusted. The fixing screws are painted red so that they are not loosened
unintentionally.

5.2.1 Tools required for adjustment

Tool
Gap gauge 1.9 mm
(QY9-0038-000)
Black BJ cartridge
Carriage Guide Frame
Head Gap
Platen
Figure 5-6 Head Gap Adjustment
Table 5-1 Tools Requied for Head Gap Adjustment
Use
For adjusting the head gap
Procure as special servicing tool. Do not use the black BJ
cartridge of a user.
5-8
BJC-5000
Screw