April, 2007
SERVICE CALL CONDITIONS
4-31
Laser Synchronization Detector Error 1: K Leading Edge: LD0
SC220 D
While the polygon motor is
rotating normally, no
synchronizing detection signal is
output for LD0 black, or leading
edge, even after the laser diode
has been firing for 2 sec.
•
Harness between the laser synchronizing
detector and I/F unit is disconnected,
defective
•
Laser synchronizing detector defective
•
Beam not reflected in photo detection
•
GAVD (ASIC) on the BICU is defective
•
LD driver board defective
•
LDB defective
•
BICU defective
•
Check board connections, replace
Laser Synchronization Detector Error 2: K Leading Edge (Other than LD0)
SC221 D
While the polygon motor is
rotating normally, no
synchronizing detection signal is
output for black, leading edge for
any LD other than LD0, even
after the laser diode has been
firing for 2 sec.
•
Beam not reflected in photo detection
•
GAVD (ASIC) (ASIC) on the BICU
defective
•
LD driver defective
•
LDB defective
•
BICU defective
•
Check board connections, replace
Laser Synchronization Detector Error 1: Y Leading Edge: LD0
SC222 D
While the polygon motor is
rotating normally, no
synchronizing detection signal is
output for LD0 yellow, leading
edge, even after the laser diode
has been firing for 2 sec.
•
Harness between the laser synchronizing
detector and I/F unit is disconnected,
defective
•
Laser synchronizing detector defective
•
Beam not reflected in photo detection
•
GAVD (ASIC) (ASIC) on the BICU
defective
•
LD driver board defective
•
LDB defective
•
BICU defective
•
Check board connections, replace
Laser Synchronization Detector Error 2: Y Leading Edge (Other than LD0)
SC223 D
While the polygon motor is
rotating normally, no
synchronizing detection signal is
output for yellow, leading
edgefor any LD other than LD0,
even after the laser diode has
been firing for 2 sec.
•
Beam not reflected in photo detection
•
GAVD (ASIC) (ASIC) on the BICU
defective
•
LD driver defective
•
LDB defective
•
BICU defective
•
Check board connections, replace
Содержание e-STUDIO 4500c
Страница 48: ...August 2006 COPIER E STUDIO4500C 5500C 1 9 Installation A Under ARDF B Operation panel film B132I002 WMF A B ...
Страница 79: ...COPY TRAY B756 August 2006 1 40 1 4 2 INSTALLATION 1 Remove the left upper cover A x 2 B756I101 WMF A ...
Страница 329: ...BOARDS August 2006 3 142 3 14 9 AC DRIVE BOARD Remove left lower cover 3 2 3 A AC drive board x8 x6 B132R727 WMF A ...
Страница 342: ...August 2006 AIR FILTERS 3 155 3 17 3 SCANNER FILTER Remove A Top left cover x1 B Scanner filter B132R730 WMF A B ...
Страница 460: ...ADDITIONAL INFORMATIONS April 2007 4 82 5 Remove the bracket G 1 screw 6 Remove the harness cover H 1 screw G H ...
Страница 722: ...BOARDS August 2006 6 6 6 2 BOARDS 6 2 1 BLOCK DIAGRAM B132D981 WMF ...
Страница 871: ...A3 11 x17 PAPER SIZE TRAY Machine Code B331 06 09 ...
Страница 873: ......
Страница 878: ...LCT LARGE CAPACITY TRAY Machine Code B473 06 09 ...
Страница 880: ......
Страница 896: ...PAPER END DETECTION September 2006 B473 16 06 09 ...
Страница 897: ...Peripherals 2000 3000 SHEET FINISHER Machine Code B700 B701 ...
Страница 901: ......
Страница 972: ...COVER INTERPOSER TRAY Machine Code B704 06 09 ...
Страница 988: ...3000 SHEET FINISHER Machine Code B706 06 09 ...
Страница 991: ......
Страница 1048: ...9 BIN MAILBOX Machine Code B762 06 09 ...
Страница 1050: ......
Страница 1062: ...PAPER MISFEED DETECTION TIMING September 2006 B762 12 06 09 ...
Страница 1096: ...e STUDIO4500c 5500c POINT TO POINT DIAGRAM 1 4 ...
Страница 1097: ...e STUDIO4500c 5500c POINT TO POINT DIAGRAM 2 4 ...
Страница 1098: ...e STUDIO4500c 5500c POINT TO POINT DIAGRAM 3 4 ...
Страница 1099: ...e STUDIO4500c 5500c POINT TO POINT DIAGRAM 4 4 ...
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