Ricoh D065 Service Manual page 461

Service Call Conditions
TD sensor adjustment error 1
During the TD sensor auto adjustment, the TD sensor output voltage (Vt) is
2.5 volts or higher even though the control voltage is set to the minimum
value (PWM = 0). When this error occurs, SP2-906-1 reads 0.00V.
D
Note:
This SC is released only after correct adjustment of the TD sensor has been
achieved. Switching the machine off and on will cancel the SC display, but
does not release ID sensor toner supply.
341
TD sensor defective
TD sensor harness disconnected
TD sensor connector disconnected or defective
IOB defective
-
Toner bottle motor defective
Note:
When the TD sensor is defective, the toner supply is controlled using pixel
count and the ID sensor.
TD sensor adjustment error 2
During the TD sensor auto adjustment, the TD sensor output voltage (Vt)
does not enter the target range (3.0 ± 0.1V) within 20 s. When this error
occurs, the display of SP2-906-1 reads 0.00V.
D
Note:
This SC is released only after correct adjustment of the TD sensor has been
342
achieved. Switching the machine off and on will cancel the SC display, but
does not release ID sensor toner supply.
TD sensor defective
TD sensor harness disconnected
-
TD sensor connector disconnected or defective
IOB defective
D062/D063/D065/D066 3-16 SM Appendix