Konica Minolta bizhub C203 Service Manual page 550

Field Service Ver. 1.0 Jul. 2007
16.5.14 C2551: Abnormally low toner density detected cyan TCR sensor
16.5.15 C2553: Abnormally low toner density detected magenta TCR sensor
16.5.16 C2555: Abnormally low toner density detected yellow TCR sensor
Imaging unit /C
Imaging unit /M
Imaging unit /Y
Toner cartridge /C
Toner cartridge /M
Toner cartridge /Y
Step
1 Reinstall imaging unit
2 Reinstall toner cartridge
M3, M4 operation check
3
(At this time, IU must be non-installation.)
4 Change imaging unit
5 Change PRCB.
16.5.17 C2552: Abnormally high toner density detected cyan TCR sensor
16.5.18 C2554: Abnormally high toner density detected magenta TCR sensor
16.5.19 C2556: Abnormally high toner density detected yellow TCR sensor
Imaging unit /C
Imaging unit /M
Imaging unit /Y
Toner cartridge /C
Toner cartridge /M
Toner cartridge /Y
Step
1 Reinstall imaging unit
2 Reinstall toner cartridge
3 Change imaging unit
4 Change PRCB
Relevant parts
Action
Relevant parts
Action
Toner supply motor/CK (M3)
Toner supply motor/YM (M4)
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
—
—
PRCB CN39PRCB-1 to 4 (M3)
PRCB CN39PRCB-5 to 8 (M4)
—
—
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
—
—
—
—
16. Malfunction code
Location (Electri-
cal component)
—
—
D-24
—
—
Location (Electri-
cal component)
—
—
—
—
505