Ricoh D131 Service Manual page 483

SC300: Image Development 1
TD sensor output error: Upper Limit
C
TD sensor output voltage (Vt), measured during each copy cycle, is
detected higher than 4V for 10 prints.


SC361-00


-

C
SC362-00
-
D131/D132/D133
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 output error: Lower limit
TD sensor output voltage (Vt), measured during each copy cycle,
is detected 10 times lower than 0.5V.

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.
2-16 SM Appendix