Canon 2163B002 service manual Feeder unit, Handling the feed roller, Removing the purge unit

Chapter 4

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4.3.8 Feeder unit

a) Handling the feed roller

The feed roller is a functionally important part. Therefore, be sure to note the following points when handling the roller.

-Do not hold the roller with one hand or warp its shape.

-Do not touch the roller surface (coated surface).

-Do not allow the roller to get scratched or marked.

-Hold the roller at two points; location D and one of the locations A, B, or C as shown in the figure below.

D

C

B

A

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b) Action to take after replacing the feed roller HP sensor, feed roller encoder, or feed roller

Eccentricity of the feed roller is factory-corrected (variation in the paper feed distance per rotation is compensated for) to enhance the media feed accuracy. There- fore, when you have replaced the feed roller HP sensor, feed roller encoder, or feed roller related to correction of feed roller eccentricity, adjustment is required. Use the service mode under the following conditions:

Service mode: SERVICE MODE > ADJUST > PRINT PATTERN > LF TUNING

Media type: Glossy photo paper

4.3.9 Purge unit

a) Removing the purge unit

1)Turn off the power and move the carriage to above the platen. If the carriage is locked at its home position, insert a Phillips screwdriver from the right side into hole [1] in the shaft of the lift unit in the purge unit and turn it counterclockwise. This will lower cap [2] and lock pin [3], allowing the carriage to be moved.

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