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2.
Checking the Height of the Stack on the Stack Tray
In all modes, the height of the stack on the stack tray is identified in reference to the height of
the stack on the tray using the stack tray paper height sensor (S11).
After a stack has been delivered, the stack tray moves down until the stack tray paper sensor
(S10) turns off, and then stops; thereafter, it moves up 12.5 mm after the paper height sensor (S10)
has detected the top of the paper on the stack tray.
If the stack tray lower limit sensor detects the stack tray while the stack tray paper height sensor
is detecting the top of the stack, the finisher controller PCB communicates an overstacking
condition to the copier; the stack tray then starts to move up when the stack has been removed from
the stack tray in preparation for the next sheet.
COPYRIGHT © 1999 CANON INC.
Stack tray paper
height sensor flag
Figure 2-605a
The flag is pushed by
the stack of flag
Figure 2-605b
CANON FINISHER-E1 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2 BASIC OPERATION
OFF
Stack tray paper
height sensor
2-49
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