Ricoh B064 SERIES Service Manual page 457

SC No.
352 C ID sensor error 3
For 2 s during the ID sensor pattern
check, the ID sensor pattern edge
voltage is not 2.5V or the pattern
edge is not detected within 800 ms.
353 C ID sensor error 4
One of the following ID sensor
output voltages is detected at ID
sensor initialization.
• Vsg < 4.0V when the maximum
PWM input (255) is applied to the
ID sensor.
• Vsg ≥ 4.0V when the minimum
PWM input (0) is applied to the
ID sensor.
354 C ID sensor error 5
20 s after the start of automatic
adjustment, Vsg cannot be adjusted
to target (4.0 ± 0.2V).
355 C ID sensor pattern voltage error
Drum potential sensor output is out
of the target range (-100 - -400V)
when reading the drum voltage for
the ID sensor pattern.
SM
CÓPIA NÃO CONTROLADA
Symptom
4-19
CÓPIA NÃO CONTROLADA
B064 SERIES SERVICE MODE
Possible Cause
• ID sensor defective
• ID sensor harness disconnected
• ID sensor connector defective
• BCU defective
• Defect during ID sensor pattern writing
• Charge power pack defective
• ID sensor dirty
• ID sensor defective
• ID sensor harness disconnected
• ID sensor connector defective
• BCU defective
• Defect during ID sensor pattern writing
• Charge power pack defective
• ID sensor dirty
• ID sensor defective
• ID sensor harness disconnected
• ID sensor connector defective
• BCU defective
• Defect during ID sensor pattern writing
• Charge power pack defective
• ID sensor dirty
• Drum potential sensor defective
• Drum potential sensor harness
disconnected
• Drum potential sensor connector
defective
• IOB defective
• Defect during ID sensor pattern writing
• Charge power pack defective
• Charge corona wire dirty
B064 Series/B140 Series
/B246 Series/D052 Series