14 June, 2002
SERVICE CALL CONDITIONS
4-21
Trouble-
shooting
4.3 SERVICE
CALL
CONDITIONS
If the Call Service indicator is lit, one of the following conditions has occurred.
Symptom Error
Code
SC-code
The white plate scan data is below the target level.
1-04
0101
Charge leak current detected while the charge roller was
activated.
9-17 0302
No polygonal motor synchronization signal detected.
9-20
0322
Development leak current detected while the develop
roller was operating.
9-29 0391
For 200ms straight, the machine detects a PWM output
duty ratio of
≤
10% despite a feedback voltage of
≤
1V, or
a duty ratio of
≥
50% despite a feedback voltage of
≥
2.5V.
9-29 0401
For 200ms straight, the machine detects a PWM output
duty ratio of
≤
10% despite a feedback voltage of
≥
4V,
or a duty ratio of
≥
50% despite a feedback voltage of
≥
3.2V
9-29 0402
Main motor error
9-24
0500
Thermistor failure
9-22
0541
During fusing roller warmup, within a 1 minute period,
the fusing temperature fails to 1) rise from 25
°
C or more
below target to 20
°
C below target, 2) rise 3
°
C in the last
5 seconds or to a temperature above the first reading.
9-22 0542
During fusing roller warmup, the machine detects a
fusing temperature of 230
°
C or higher for 1 second.
9-22 0543
During printing, the machine detects a fusing
temperature of 130
°
C or lower for 1 minute.
9-22 0544
During printing, the machine detects a fusing
temperature change of
±
25
°
C two times consecutively.
9-22 0546
The destination code in the PSU and fusing unit do not
match.
9-22 0547
During printing, the machine detects a fusing
temperature above the allowable error detection
maximum for 10 seconds.
9-22 0548
During printing, the machine detects a fusing
temperature below the allowable error detection
minimum of for 6 seconds.
9-22 0549
The fusing temperature fails to drop down to the standby
temperature within a specified period of time.
9-22 0550
During high temperature standby, the machine detects a
fusing temperature of 195
°
C or higher for 10 seconds.
9-22 0551
The machine detects a fusing temperature of 150
°
C or
lower 6 seconds during high temperature standby mode,
or 50
°
C or lower for 6 seconds during fax standby mode.
9-22 0552
To release an SC code indication relating to the fusing unit (9-22), check and
replace the fusing unit first. Then set printer switch 01 bit 0 to 1 and turn the power
off and on.