Adjustment / Settings - Canon PIXMA MP170 Service Manual

3-3. Adjustment / Settings

(1) Paper feed motor adjustment
Perform the following adjustments when the paper feed motor unit is replaced:
1) When removing the screws, mark the 6 screw holes.
2) When installing the motor, position each screw to the mark, and fasten them.
3) After replacement, be sure to perform the service test print, and confirm that no strange noise or faulty print
operation (due to dislocation of the belt or gear, or out-of-phase motor, etc.) occurs.
Note: The red screws securing the paper feed motor may be loosened only at replacement of the paper feed motor
unit. DO NOT loosen them in other cases.
(2) Main chassis and carriage rail adjustment
[Carriage rail adjustment]
Perform the following adjustments when the carriage unit is replaced:
1) Before loosening the red screws, mark the boss position beside the screw.
2) In attaching the carriage rail, make sure that the boss fits into the hole and to the mark made in step 1), then
fasten the screws.
3) Be sure to perform the confirmation test detailed below; confirm that the print quality is proper and the ink
cartridges are not contacting the paper.
[Main chassis adjustment]
After installing the main chassis, be sure to perform the confirmation test detailed below; confirm that the print
quality is proper and the ink cartridges are not contacting the paper.
<Confirmation test>
Using Photo Paper Pro, and with the paper thickness lever set to the left position (normal position), print an image
and confirm that the print quality is proper, and the ink cartridges are free from contacting the paper.
If the print quality is not proper, or an ink cartridge contacts the paper, adjust the head-to-paper distance in the
following procedures:
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