Canon CP660 Service Manual page 193

7. Face-Down Delivery Slot Stationary Jam
The CPU will identify a face-down delivery slot stationary jam if the paper does not
move past the face-down tray delivery sensor (PS11) within a specific period of time (T)
after the face-down tray delivery sensor (PS11) has detected the leading edge of the
paper.
T = about 2.4 sec (normal, A4)
T = about 4.1 sec (normal, A3)
T = about 9.4 sec (transparency, A4)
T = about 16.6 sec (transparency, A3)
T = about 7.0 sec (thick paper, A4)
T = about 12.4 sec (thick paper, A3)
8. Delivery Excess Length Feeding Jam
The CPU checks the size of paper using the registration paper sensor (PS1), and will
stop the printer unit operation if the difference in size between the the result of its detec-
tion and the result of later detection is +15 mm or more. If the difference is between +7.5
and 15 mm or -3.7 mm or more, it will discharge the paper as a paper size mismatch.
9. Non-Default Size Feeding Jam
If the transparency sensors 1 and 2 detect a transparency not of a specific size, a
non-default size feeding jam is identified.
10. Door Open Jam
If any of the following sensors detects paper when the cover is opened/closed, the
CPU will identify a door open jam:
• Registration paper sensor (PS1)
• Pick-up assembly paper sensor (PS17)
• Separation sensor (PS5)
• Face-down tray delivery sensor (PS11)
• Fixing delivery sensor (PS1903)
11. Inside Residual Jam
The CPU will identify an inside residual jam if any of the following sensors detects
paper when the paper switch is turned on:
• Pick-up assembly paper sensor (PS17)
• Separation sensor (PS5)
• Face-down tray delivery sensor (PS11)
• Fixing delivery sensor (PS1903)
COPYRIGHT © 1999 CANON INC.
Download free service manual at http://printer1.blogspot.com
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 PICK-UP/FEEDING SYSTEM
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