Ricoh B089 - Page 412

SERVICE CALL CONDITIONS
B089/B093 7-4 SM
Code No. Symptom Possible Cause
LD drive current over 323 B
The LD drive board applies more than
100 mA to the LD.
• LD unit defective (not enough power,
due to aging)
• Poor connection between the LD unit
and the SBCU board
• SBCU board defective
ID sensor calibration - Error 1 350 B
One of the following conditions
occurred when the ID sensor pattern
was calibrated during printing:
• Vsp > 2.5V
• Vsg < 2.5V
• Vsp = 0V
• Vsg = 0V
• ID sensor defective or dirty
• ID sensor harness disconnected or
connector is damaged
• SBCU defective
• Scanning system or image creation
system malfunction
• High voltage power supply board
(power pack) defective
ID sensor calibration – Error 2 351 B
The following conditions occurred
simultaneously when the ID sensor
pattern was calibrated during printing:
• Vsg = 5V
• PWM = 0 (LED current drop)
• ID sensor dirty or defective
• ID sensor harness disconnected, or
connector damaged
• SBCU board defective
• High voltage power supply board
(power pack) defective
ID sensor calibration – Error 3 352 B
During printing the 2.5V value for edge
detection of the ID sensor pattern could
not be detected after 800 ms.
• ID sensor dirty or defective
• ID sensor harness disconnected, or
connector damaged
• SBCU defective
• High voltage power supply board
(power pack) defective
ID sensor adjustment Error 1 353 B
Error occurred during automatic
adjustment of Vsg:
• Vsg output did not attain 4V, even
with PWM = 255 (maximum current
for LED)
• Vsg output was greater than 4V,
even with PWM=0 (no current for the
LED)
• ID sensor dirty or defective
• ID sensor harness disconnected, or
connector damaged
• SBCU defective
• High voltage power supply board
(power pack) defective
• Scanning system or image creation
system malfunction
ID Sensor Adjustment Error 2 354 B
Error occurred during automatic
adjustment of Vsg. Vsg could not be
adjusted to 4.0V±0.2V within 50 ms
even after 20 attempts.
• ID sensor dirty or defective
• ID sensor harness disconnected, or
connector damaged
• SBCU defective
• High voltage power supply board
(power pack) defective
• Scanning system or image creation
system malfunction
ID sensor error 355 C
For details about the cause of the
problem, please refer to SC350~354
above.
• ID sensor dirty or defective
• ID sensor harness disconnected, or
connector damaged
• SBCU board defective
• High voltage power supply board
(power pack) defective
• Scanning system or image creation
system malfunction