Canon CP660 Service Manual page 58

CHAPTER 2 BASIC OPERATION
Inputs to and Outputs from the DC Controller PCB (8/10)
J674-2
ITD cleaning
SL1
roller solenoid
J74
-3
-2
-1
J681-2 -3 -4
Pre-exposure
LED relay PCB
J682-3 -2 -1
Heat discharge
FM3
fan 3
J702-3
Heat discharge
FM1
fan 1
J703-3
Heat discharge
FM2
fan 2
J704-1
Developing
M1
rotary motor
J705
-2
Developing
-1
SL5
rotary stopper
-3
solenoid
2-10
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Main relay PCB
Sub relay PCB
+24UH
J637-1 J643-6
-1 -5
-2
+24UH
J18
-1
-3 -1 J645-3
-2 -2 -2
-2
-3 -1 -3 -1
J683-2
-1
Pre-exposure LED
assembly
Developing rotary
motor PCB
+24VB
-2
-1
+24VB
-2
-1
+24VAR
-2
Motor
-3
driver
-4
-5
IC701
-6
+24VAR
-2 J705-12
-3 -11
-1 -10
Figure 2-110
CLNRON
J647-A6 J227-A6
J647-B2 J227-B10
FAN3ON*
J647-A10 J227-A2
FAN3LK*
J648-5
J648-1,2
+24VAR
+24VB
J701-5,-4
J701-1
J706-B1 J220-B9
FAN1ON*
J706-A9 J220-A1
FAN1LK*
J706-B2 J220-B8
FAN2ON*
J706-A8 J220-A2
FAN2LK*
RMPHA
J220-A9
J706-A1
RMPHA*
-B1
-B9
RMPHB
-A8
-A2
-B2 RMPHB*
-B8
J706-A4 J220-A6
RLSROT
J706-B6 J220-B4
STPROT
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
DC controller PCB
When '1', the ITD cleaning roller
solenoid turns on to lock and unlock
the cleaning roller to and from the
transfer drum.
When '0', the fan turns on and
the pre-exposure LED turns on.
When the fan is locked, '0'.
When '0', the fan turns on.
When the fan is locked, '0'.
When '0', the fan rotates.
When the fan is locked, '0'.
Developing rotary
motor drive signal
For details, see p. 4-34.
Developing rotary stopper
lever drive control
For details, see 4-14.