Canon 1692B002, Service Manual

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Chapter 4
4-12
F-4-24
b) Action to take after replacing the feed roller HP sensor, feed roller encoder and feed roller
This printer as shipped has the feed roller eccentricity (that is, variations in the rate of paper feed from rotation to rotation) corrected for enhanced media feed ac-
curacy. When the feed roller HP sensor or feed roller encoder and feed roller pertaining to the correction of eccentricity variations has been replaced, therefore,
they should require adjustment.
Execute service mode under the following conditions to launch automatic adjustment:
Service mode: SERVICE MODE > ADJUST > PRINT PATTERN > LF TUNING
Media type: Glossy photo paper
4.3.6 Carriage unit
0014-8964
a) Removing the carriage unit
1) Drain the ink. See Disassembly/Reassembly > Points to Note on Disassembly/Reassembly > Draining the ink.
2) 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 lifting unit in the purge unit and turn it counterclockwise. This will lower cap [2] and lock pin [3], allowing the carriage to be moved.
F-4-25
3) Remove the printheads.
[3]
[2]
[4]
[1]
[2]
[2]
[1]
[3]
[2]