
4–19
TROUBLESHOOTING MALFUNCTIONS
31
The registration roller fails to rotate.
32
The scanner fails to move forward/in reverse.
Cause
Registration
roller
DC controller
PCB
Registration
clutch (CL1)
Step
1
2
Checks
Press the Copy Start key. Does
the registration roller rotate
immediately after the scanner
moves forward?
Does the voltage between the
connector J114-B10 (+) and
the connector J114-B1 (–) on
the DC controller PCB change
from 0 V to 24 V immediately
after the scanner starts to
move forward?
Yes/No
YES
NO
YES
Action
Check the registration roller
drive assembly.
Replace the DC controller
PCB.
Check the wiring from the DC
controller PCB; if normal,
replace CL1.
Cause
Scanner drive
cable
Scanner path
(foreign matter)
Connector
(poor contact)
Scanner motor
(M2)
DC controller
PCB
Step
1
2
3
4
Checks
Is the scanner drive cable rout-
ed correctly?
Is the scanner rail free of dirt,
and does the scanner move
smoothly?
Check the wiring/connection
from the connector J116 on the
DC controller PCB to the scan-
ner motor. Is it normal?
Replace the scanner motor. Is
the problem corrected?
Yes/No
NO
NO
NO
YES
NO
Action
Re-route it.
Check the surface of the scan-
ner rail for foreign matter or an
object that comes into contact
with the scanner.
Correct it.
End.
Replace the DC controller
PCB.
Summary of Contents for GP215
Page 4: ......
Page 36: ......
Page 38: ...3 2 TROUBLESHOOTING IMAGE PROBLEMS ...
Page 39: ...3 3 TROUBLESHOOTING IMAGE PROBLEMS ...
Page 40: ...3 4 B Image Fault Samples ...
Page 80: ......
Page 92: ...6 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS C Fans Figure 6 603 FM6 FM5 FM2 FM3 FM1 FM4 ...
Page 105: ...6 19 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS 3 Composite Power Supply PCB Figure 6 610 ...
Page 204: ...C GENERAL CIRCUIT DIAGRAM General Circuit Diagram 1 4 A 3 ...
Page 205: ...General Circuit Diagram 2 4 A 4 ...
Page 206: ...General Circuit Diagram 3 4 A 5 ...
Page 207: ...General Circuit Diagram 4 4 A 6 ...