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2/99
STATUS INDICATOR RAPs
DocuPrint C55/C55mp/[NC60]
2-25
U4, U5
U4 OPTICS FAULT
A ROS problem was detected. The laser did
not come on.
INITIAL ACTION
Switch the power off wait 10 seconds and
switch the power on. Recheck for the fault.
Check to ensure that the printer covers are
closed. Inspect the Laser Interlock (smaller of
the two switches) to ensure that it is actuated.
PROCEDURE
Locate connector 1007. This is a small DC,
two wire connector located above and to the
right of the PCU PWB.
Set up the meter to read +5 VDC. Connect
the meter to CN1007-2 (+) (this pin goes to the
ROS assembly harness) and ground (
−
).
Open and close the Printer while monitoring
the meter.
The meter reads 0 VDC when the Printer is
open and switches to +5 VDC when the
Printer is closed.
Y
N
Go to BSD 6 in Section 7 and troubleshoot
the Laser Interlock Switch circuit (CN113-
12) for an open.
If no open exists, replace the PCU PWB.
If the problem still exists, replace the
Laser Interlock Switch
Go to BSD 6 in Section 7 Connector CN113
and check the following pins for a good
connection:
A
A
•
(CN113-11) GND.
•
(CN113-10) SYNC.
•
(CN113-8) VIDEO DATA.
•
(CN113-7) LASER DIODE ON (L) +5 VDC.
If the wiring appears OK, replace the PCU
PWB.
If the problem still exists, replace the ROS.
U5 POLYGON MOTOR FAULT
A ROS problem was detected. The Polygon
Motor did not come up to the proper speed.
INITIAL ACTION
Switch the power off wait 10 seconds and
switch the power on. Recheck for the fault.
PROCEDURE
Go to BSD 6 in Section 7 Connector CN113
and check the following pins for a good
connection:
•
(CN113-5) LASER LOCK.
•
(CN113-4) POLYGON MOTOR LOCK (L)
+5 VDC.
•
(CN113-3) POLYGON MOTOR ON (L)
+5 VDC.
•
(CN113-2) GND.
•
(CN113-1) +24 VDC INTERLOCKED.
If the wiring appears OK, replace the PCU
PWB.
If the problem still exists, replace the ROS.
Содержание DocuPrint C55
Страница 14: ...SERVICE CALL PROCEDURES 2 99 NOTES 1 6 DocuPrint C55 C55mp NC60 Notes ...
Страница 56: ...OTHER FAULTS RAPs 2 99 NOTES 2 42 DocuPrint C55 C55mp NC60 NOTES ...
Страница 76: ...IMAGE QUALITY SPECIFICATIONS 2 99 NOTES 3 20 DocuPrint C55 C55mp NC60 NOTES ...
Страница 130: ...REPAIRS ADJUSTMENTS 2 99 NOTES 4 42 DocuPrint C55 C55mp NC60 NOTES ...
Страница 216: ...GENERAL PROCEDURES 2 99 NOTES 6 18 DocuPrint C55 C55mp NC60 Notes ...
Страница 252: ...GENERAL PROCEDURES 2 99 NOTES 6 54 DocuPrint C55 C55mp NC60 NOTES ...
Страница 272: ...GENERAL PROCEDURES 2 99 NOTES 6 74 DocuPrint C55 C55mp NOTES ...
Страница 274: ...GENERAL PROCEDURES 2 99 NOTES 6 76 DocuPrint NC60 NOTES ...