Olivetti d-Copia 600, Руководство по обслуживанию

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1-5-35
C4110 BD initialization (B) problem
• When power is turned on, only laser B
is output and ASIC of main PWB
detects a BD error for 2000 ms.
Defective laser
scanner unit. Replace the laser scanner unit (see page 1-
6-42).
Defective main
PWB. Replace the main PWB and check for cor-
rect operation.
Poor contact in
connector termi-
nals. Check the connection of connector YC8 on
the main PWB and the continuity across the
connector terminals. Repair or replace if
necessary.
C4120 BD initialization (C) problem
• When power is turned on, only laser C
is output and ASIC of main PWB
detects a BD error for 2000 ms.
Defective laser
scanner unit. Replace the laser scanner unit (see page 1-
6-42).
Defective main
PWB. Replace the main PWB and check for cor-
rect operation.
Poor contact in
connector termi-
nals. Check the connection of connector YC8 on
the main PWB and the continuity across the
connector terminals. Repair or replace if
necessary.
C4200 BD steady-state problem
• ASIC of the main PWB detects a BD
error A for 4000 ms after the polygon
motor rotation has been stabilized.
Defective laser
diode. Replace the laser scanner unit (see page 1-
6-42).
Defective polygon
motor. Replace the laser scanner unit (see page 1-
6-42).
Defective main
PWB. Replace the main PWB and check for cor-
rect operation.
Poor contact in
connector termi-
nals. Check the connection of connector YC8 on
the main PWB and the continuity across the
connector terminals. Repair or replace if
necessary.
C5100 Main high-voltage error
• While the main high-voltage output
remote signal is on, an alarm signal is
detected continuously for 400 ms.
Defective high volt-
age PWB. Replace the high voltage PWB and check
for correct operation.
Leak of main high-
voltage. Check the main charger unit and replace if
necessary (see page 1-6-31).
C5500 Drum surface potential sensor prob-
lem 1
• The sensor output is 0.5 V or less
when MC REM signal is turned on.
Poor contact in the
drum surface
potential sensor
connector termi-
nals. Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
repair or replace the cable.
Defective drum
surface potential
sensor. Replace the drum surface potential sensor.
Defective high volt-
age PWB. Replace the high voltage PWB and check
for correct operation.
Defective engine
PWB. Replace the engine PWB and check for cor-
rect operation.
C5510 Drum surface potential sensor prob-
lem 2
• The sensor output is 4.5 V or more
when the MC REM signal is turned on.
Defective drum
surface potential
sensor. Replace the drum surface potential sensor.
Defective high volt-
age PWB. Replace the high voltage PWB and check
for correct operation.
Code Contents
Remarks
Causes Check procedures/corrective measures
Y104350-7 Sevice Manual