Canon BJC6500 Service Manual - Page 36

Adjustable Bushings Supporting the Carriage Shaft, Removing the ASF Unit

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Part 2: MAINTENANCE BJC-6500 2.3.4 Removing the ASF unit The ASF unit is attached to the printer unit such that the ASF driving gear and the pick-up roller are matched in phase. Once you have removed the assembly screws, painted red to protect against careless removal, which fasten the ASF unit to the printer frame, you must readjust the position of the ASF gear with respect to that of the pick-up roller. For details, refer to 2.4.5 How to adjust the ASF gear position (Page 214). Assembly Screw (Red) ASF Unit Assembly Screws (Red) Figure 2-7 Removing the ASF Unit 2.3.5 Removing the adjustable bushings supporting the carriage shaft The adjustable bushings supporting the carriage shaft are adjusted and secured to the printer frame so that the ideal head-to-paper gap is maintained for best print quality. Once you have loosened the screws, painted red to protect against careless removal, which fasten the adjustable bushings to the printer frame, you must readjust the position of the bushings for head gap adjustment. For details, refer to 2.4.6 How to adjust the head gap (Page 2-16). Adjustable Bushing Supporting the Carriage Shaft Adjustable Bushing Supporting the Carriage Shaft Figure 2-8 Adjustable Bushings Supporting the Carriage Shaft 2-8

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2.3.4 Removing the ASF unit
The ASF unit is attached to the printer unit such that the ASF driving gear and the
pick-up roller are matched in phase.
Once you have removed the assembly screws,
painted red to protect against careless removal, which fasten the ASF unit to the
printer frame, you must readjust the position of the ASF gear with respect to that of
the pick-up roller.
For details, refer to
2.4.5 How to adjust the ASF gear position
(Page 2-
14)
.
2.3.5 Removing the adjustable bushings supporting the carriage shaft
The adjustable bushings supporting the carriage shaft are adjusted and secured to
the printer frame so that the ideal head-to-paper gap is maintained for best print
quality.
Once you have loosened the screws, painted red to protect against careless
removal, which fasten the adjustable bushings to the printer frame, you must
readjust the position of the bushings for head gap adjustment.
For details, refer to
2.4.6 How to adjust the head gap
(Page 2-16)
.
Part 2: MAINTENANCE
BJC-6500
2-8
Figure 2-8 Adjustable Bushings Supporting the Carriage Shaft
Adjustable Bushing
Supporting the Carriage
Shaft
Adjustable Bushing
Supporting the Carriage
Shaft
Figure 2-7 Removing the ASF Unit
ASF Unit
Assembly Screws
(Red)
Assembly Screw
(Red)