Canon BJC6500 - BJC 6500 Color Inkjet Printer, Service Manual, Page: 78 / 115

Part 4: TROUBLESHOOTING BJC-6500
4-14
From
previous
page
Check the paper
end sensor's arm
Using paper, check the arm for smooth
motion, deformation, or damage.
Paper sensor check
With the printer switched ON, check actuation of the
paper end sensor's arm using paper.
J8
Pin No. 3
Measurement points
Replace the sensor
arm
Visually check the
Drive Swiching Unit
Replace the Drive
Swiching Unit
ASF gear position
adjustment
Replace the control
board
Open
C l o s e
Sensor
Low level (paper detected)
High level (no paper detected)
Normal value
See Part 2: 2.4.5 How to adjust the ASF gear positon (page 2-14).
Yes
No
OK?
Yes
No
OK?
Yes
No
OK?
END
ASF Feed Path
Paper End Sensor
Paper End Sensor
Paper
Check for displaced gears, missing teeth, and
damaged/bent parts.