Ricoh D158 - Page 277

Service Call Conditions
D158/D159/D160/D161/D170 5-13 SM
Trouble-
shooting
No.
Definition
Symptom Possible Cause
350 B
ID sensor error (In-process)
Vsg adjustment error
Vsp error
Vsg error
Vsg-Vsp error
TD sensor error
 Dirt on the ID sensor
 ID sensor not installed at the correct
angle.
 Defective ID sensor
 Defective PCU
 Development roller is not rotating
351 B
ID sensor : Vsg measurement error (In-process) (D158/D159)
When the ID sensor detects
that Vsg is 5 V and LED drive
current is minimum (PWM=0).
 Defective ID sensor
 Disconnection of the harness to the
ID sensor
 Bad electrical contact of the ID
sensor connector
 Defective BCU
 Defective laser unit
 Defective developer density
 Defective high-voltage power pack
 Dirty ID sensor
353 B
ID sensor : Auto adjustment value error (In-process) (D158/D159)
When the ID sensor is
adjusting Vsg automatically.
 Defective ID sensor
 Disconnection of the harness to the
ID sensor
 Bad electrical contact of the ID
sensor connector
 Defective BCU
 Defective laser unit
 Defective developer density
 Defective high-voltage power pack
 Dirty ID sensor