Opening/Closing The Deck (Compartment) - Canon GP335 Service Manual

CHAPTER 8 PAPER DECK
E. Opening/Closing the Deck (compartment)
1. Opening/Closing of the Deck
When the deck open switch (SW100) is pushed, the deck open solenoid (SL102) turns on to
release the deck (compartment), pushing the deck several centimeters to the front by the force of a
spring. At the same time, the deck lifter motor (M102) starts to rotate to move down the lifter inside
the deck.
When the deck (compartment) is pushed in the copier manually, the deck open sensor (PS109)
blocks the light-blocking plate of the compartment so that the lifter moves up to the pick-up
position.
When the deck lifter motor starts to rotate in response to the opening/closing of the deck, the
deck open indicator (LED100) on the open switch PCB turns on or flashes.
J100
-1
SW100
-4
LED100
Open switch PCB
(compartment)
Deck lifter
Open
8-12
Deck open signal (DOPN*)
Deck open indicator LED activation signal (DOLON*)
Deck lifter upper limit detection signal
PS103
(DLUL)
PS109
Deck open detection signal (DOPND*)
SW101
Deck open detection signal (DOPD*)
Deck open solenoid drive signal
(DOPSD*)
SL102
Deck lifter lower limit detection
SW102
signal (DLLD)
Deck lifter motor drive signal
M102
Figure 8-108
COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
J103
- 4
J103
- 1
J103
- 9
J108
- 7
J109
Side
- 3
deck
driver
PCB
J108
-11
J107-
- 8
J107
DC-
CPU
Copier