Canon BJC 6000 Service Manual - Page 130

Head Gap Adjustment 2, Remove the Black BJ cartridge.

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Part 5: Maintenance BJC-6000 Adjustment procedure: 1) Set the 1.9-mm gap gauge (QY9-0038) in position A. 2) Move the carriage into position C by moving the carriage belt by hand. 3) Install the Black BJ cartridge on the left side of the carriage. 4) Slowly loosen, by half a turn, the fixing screw that secures the left adjustable bearing supporting the carriage shaft, and move the paper thickness lever up and down two or three times, and tighten the fixing screw. 5) Remove the Black BJ cartridge. 6) Put the 0.5mm gap gauge (QY9-0001) and the 1.9mm gap gauge (QY9-0038) stacked together in position B. 7) Set the paper thickness lever to the lowest position (thick paper position). 8) Move the carriage into position D by moving the carriage belt by hand. 9) Install the Black BJ cartridge on the left side of the carriage. 10) Slowly loosen, by half a turn, the fixing screw that secures the right adjustable bearing supporting the carriage shaft, and move the paper thickness selector up and down two or three times, and tighten the fixing screw. 11) Remove the Black BJ cartridge. 12) Repeat steps 1) to 11) again. 13) Firmly tighten the right and left fixing screws. 14) Reinstall the right and left shaft clips in place. Position A Position B QY9-0038 QY9-0001 QY9-0038 Black BJ Cartrige Carriage Position C Position D Figure 5-10 Head Gap Adjustment (2) 5-12

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Adjustment procedure:
1) Set the 1.9-mm gap gauge (QY9-0038) in position A.
2) Move the carriage into position C by moving the carriage belt by hand.
3) Install the Black BJ cartridge on the left side of the carriage.
4) Slowly loosen, by half a turn, the fixing screw that secures the left adjustable
bearing supporting the carriage shaft, and move the paper thickness lever up and
down two or three times, and tighten the fixing screw.
5) Remove the Black BJ cartridge.
6) Put the 0.5mm gap gauge (QY9-0001) and the 1.9mm gap gauge (QY9-0038)
stacked together in position B.
7) Set the paper thickness lever to the lowest position (thick paper position).
8) Move the carriage into position D by moving the carriage belt by hand.
9) Install the Black BJ cartridge on the left side of the carriage.
10) Slowly loosen, by half a turn, the fixing screw that secures the right adjustable
bearing supporting the carriage shaft, and move the paper thickness selector up
and down two or three times, and tighten the fixing screw.
11) Remove the Black BJ cartridge.
12) Repeat steps 1) to 11) again.
13) Firmly tighten the right and left fixing screws.
14) Reinstall the right and left shaft clips in place.
Part 5:
Maintenance
BJC-6000
5-12
Figure 5-10 Head Gap Adjustment (2)
Black BJ Cartrige
Carriage
Position C
Position D
Position A
Position B
QY9-0038
QY9-0001
QY9-0038