Canon Paper Deck-AF1 Service Manual page 30

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Technology > Controls > Compartment Block > Lifter Control
■ Lifter Control
The lifter of this equipment is connected to the drive shaft via a cable, and is driven by the
deck lifter motor (M101, M201, M301).The equipment changes the direction of motor rotation
to move up or down the lifter.
●
Ascension Control
The lifter starts to move up when the deck safety switch (S108, S208, S308) detects that the
deck has been set in place.
The lifter then stops when the paper surface sensor (S104, S204, S304) mounted at the
pickup roller of the deck detects the top surface of the stack of paper placed on the lifter.
A lifter upper limit sensor (S105, S205, S305) is used to prevent damage to this equipment in
case where the lifter continues to ascend for some reason after the sensor lever blocks the
paper surface sensor (S104, S204, S304).
The obstacle sensor (S106, S206, S306) is also used to prevent damage to this equipment
and prevents foreign objects inside the compartment from hitting the ceiling before the paper
surface sensor (S104, S204, S304) detects the top surface of the stack of paper.
●
Descension Control
When the deck open switch is pressed, the lifter starts to descend to the position where the
lifter HP sensor (S111, S211, S311) turns on. A lifter lower limit sensor (S112, S212, S312) is
used to prevent damage to this equipment in case where the lifter continues to descend due
to some reason after turning on of the lifter HP sensor (S111, S211, S311).
MEMO:
Lifter control is performed in the same manner for all decks.
2 Technology > Controls > Compartment Block > Lifter Control
Deck safety switch detection signal
Foreign substance sensor detection signal
Lifter lower limit sensor detection signal
Lifter moter drive signal
Lifter HP sensor detection signal
Paper surface sensor detection signal
Lifter upper limit sensor
detection signal
S105
S205
S305
S104
S204
S304
S106
S206
S306
S111
S211
S311 S112
S212
S312
S108
S208
S308
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M101
M201
M301
F-2-18 F-2-18
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