Canon NP6621 Service Manual page 60

OPERATIONS AND TIMING
2. Inputs to the DC Controller (2/5)
Copyboard cover
sensor
PS 11
Vertical path roller 2
paper sensor
PS 12
Cassette 2 paper
sensor
PS 13
Duplexing unit outlet
paper sensor
PS 14
Duplexing unit inlet
paper sensor
PS 15
Vertical path roller 1
paper sensor
PS 16
3–4
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DC controller
5V
J 310A- 12
- 11
CVOP
- 10
5V
J 309- 6
- 5
VP2P
- 4
J 309- 1
- 3
CPD2*
- 2
J 325- 3
- 2
DUEX
- 1
J 320- 1
- 2
DUIN
- 3
5V
J 314- 12
- 13
VP1P
- 14
Figure 3-104
COPYRIGHT © 1998 CANON INC.
When the copyboard cover is open, '1'.
(when the light-blocking plate is at PS24)
When PS12 detects paper, '1'.
5V
When paper is present in the cassette, '0'.
(when the light-blocking plate is not at PS13, '0').
5V
When paper is present at the duplexing unit outlet, '1'.
5V
When paper is present at the duplexing unit inlet, '1'.
When paper is present at the vertical
path roller 1 sensor, '1'.
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)