Xerox DocuPrint C55 Service Manual page 284

A B
9.2 DRUM DETECTION
1
DRUM ASSEMBLY
NEW DRUM
DRUM LINK
DETECT SIGNAL
1
+5 VDC
2
DRUM DETECT (H)
3
9.3 MAIN DRIVE
PCU
PWB
PL 4.2
CN112
MAIN MOTOR CLOCK A
1
4 MAIN MOTOR CLOCK A
2
+24 VDC INTERLOCKED
2
5
MAIN MOTOR CLOCK B
3
MAIN MOTOR CLOCK B
4
9.4 CHARGING
5
Chain 9.1
CHARGE DC POWER
Chain 9.1
RED (LARGE)
6
GRID DC POWER
RED (SMALL)
THE DRUM LINK IS USED TO DETECT WHEN A
1
NEW DRUM MODULE IS INSTALLED.
OPEN AND STARTS THE DRUM COUNT.
7 THE MAIN MOTOR CLOCK SIGNALS ARE FROM 17
2
TO 20 VDC.
BSDs
Chain 9 Xerographics
C D E
LVPS PCU
PWB PWB
PL 3.1 PL 4.2
CN704
CN703 CN107
1 15
3
F3
17
3
2
+5 VDC
J8
19
5
1
EC
MAIN MOTOR
PL 4.1
MOT
PHOTORECEPTOR
ASSEMBLY
CHARGE
DICOROTRON
Status
IT MELTS Description
Codes
J8 A New Drum Module needs to be installed.
The Drum Module is not installed correctly.
EC
F G
DRUM LINK
PWB
2/99
7-10
H J
CHARGE
DICOROTRON
CHARGE
CONNECTION
GRID
CONNECTION
LVPS PWB
PCU PWB
MAIN
MOTOR
XEROGRAPHICS
CHAIN 9 LEVEL 2
SHEET 2 0F 10
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