Controlling The Deck Lifter Motor (M102) - Canon ImageRunner 600 Service Manual

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CHAPTER 10 SIDE PAPER DECK

Controlling the Deck Lifter Motor (M102)

The deck lifter motor control circuit is located on the side deck driver PCB. (See Figure 10-111

for a block diagram.)

The combination circuit in the diagram consists of various logic circuits, and serves to rotate

the deck lifter motor clockwise or counterclockwise based on the combinations of the deck lifter

motor drive signal (DLMON*) and the deck lifter up signal (DLUP*) from the copier's DC control-

ler and the output signals from various sensors.

The copier's control panel will indicate 'E041' if the deck lifter position sensor (PS104) does

not detect the lifter in about 60 sec after the generation of the deck lifter up signal.

[1] Conditions Making the Lifter Move Up

• The deck is connected to the copier.

• The deck (compartment) is closed.

• deck lifter upper limit detection signal (DLUL) = '0' and deck lifter position detection signal

(DLPD) = '0'

• deck lifter motor drive signal (DLMON*) = '0'

• deck lifter up signal (DLUP*) = '0'

As a result, the lifter moves up.

[2] Conditions Making the Lifter Move Down

• The deck (compartment) is open. ! deck open detection signal (DOPND*) = '0'

• deck lifter lower limit detecting signal (DLLD) = '0' and deck lifter position detection signal

(DLPD) = '0'

• deck lifter motor drive signal (DLMON*) = '0'

• deck lifter up signal (DLUP*) = '1'

As a result, the lifter moves down.

! deck set signal (DSET) = '1'

! deck open detection signal (DOPND*) = '1'

! deck open detecting switch = 'ON'

CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.

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