Canon CP660 Service Manual page 192

CHAPTER 5 PICK-UP/FEEDING SYSTEM
1. Pick-Up Delay Jam 1
The CPU will identify a pick-up delay jam 1 if the print paper does not reach the pick-
up assembly paper sensor (PS17) a specific period of time (T = about 2.7 sec) after the
vertical sync signal (TOP*) has been generated.
2. Pick-Up Delay Jam 2
The CPU will identify a pick-up delay jam 2 if the paper does not reach the registra-
tion paper sensor (PS1) a specific period of time (T) after the horizontal sync signal
(TOP*) has been generated.
• T = about 2.9 sec if the multifeeder tray is used.
• T = about 3.3 sec if a source other than the multifeeder tray is used.
3. Wrapping on the Intermediate Transfer Drum
The CPU assumes that the paper has wrapped around the intermediate transfer drum
if the separation sensor (PS5) does not detect the paper within a specific period of time
(T) between 1.5 and 8.7 sec after the registration drive signal (TOPR*) has been gener-
ated.
T = about 0.1 sec (normal mode)
T = about 0.4 sec (transparency mode)
T = about 0.3 sec (thick paper mode)
4. Fixing Delivery Delay Jam
The CPU will identify a fixing delivery delay jam if the paper does not reach the fixing
delivery sensor (PS1903) within a specific period of time (T) after the registration drive
signal (TOPR*) has been generated.
T = about 3.2 sec (normal mode)
T = about 12.8 sec (transparency more)
T = about 9.6 sec (thick paper mode)
5. Fixing Delivery Stationary Jam
The CPU will identify a fixing delivery stationary jam if the paper does not move past
the fixing delivery sensor (PS1903) within as specific time (T) after the sensor has detect-
ed the leading edge of the paper.
T = about 2.4 sec (normal mode, A4R)
T = about 4.1 sec (normal mode, A3)
T = about 9.4 sec (transparency mode, A4R), T = about 16.6 sec (transparency mode,
A3)
T = about 7.0 sec (thick paper mode, A4R), T = about 12.4 sec (thick paper mode,
A3)
6. Face-Down Delivery Slot Delay Jam
The CPU will identify a face-down delivery slot delay jam if the paper doe not reach
the face-down tray delivery sensor (PS11) within a specific period of time (T) after the fix-
ing delivery sensor (PS1903) has detected the leading edge of the paper.
T = about 4.0 sec (normal mode)
T = about 16.0 sec (transparency mode)
T = about 12.0 sec (thick paper mode)
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COPYRIGHT © 1999 CANON INC.
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CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)