Adjusting The Head Gap - Canon BJC-6200 Service Manual

BJC-6200

3.4.6 Adjusting the head gap

If the set screws securing the head gap adjustment plate to the printer frame are loosened or removed, the
head gap adjustment will be necessary.
Preparation
1) Remove the upper cover unit and bottom case. (Or, reassemble the printer so that the upper cover
unit and bottom case are to be attached next.)
2) Remove the paper thickness lever spring and the left and right shaft clips, then attach the bottom
case.
3) Loosen the red set screws on both sides of the printer chassis by a half rotation from the fully
tightened position.
4) Set the paper thickness lever to the down position (for thick paper).
Carriage belt
Head gap
adjustment
plate (left side)
Red set
screw
Black BJ cartridge
Before doing the adjustment, make sure the gap gauge is not deformed and that no foreign
matter is adhering to it or to the platen.
Paper thickness lever
Normal paper position
Thick paper position
Figure 2-13 Head Gap Adjustment 1
Shaft clip
Paper thickness lever spring
2-21
Part 2: Troubleshooting
Red set
screw
Head gap
adjustment plate
(right side)