Field Service Ver. 1.0 Jun. 2008
17. Malfunction code
303
T
roubleshooting
17.5.16
C2558: Abnormally high toner density detected black TCR sensor
17.5.17
C2559: Cyan TCR sensor adjustment failure
17.5.18
C255A: Magenta TCR sensor adjustment failure
17.5.19
C255B: Yellow TCR sensor adjustment failure
17.5.20
C255C: Black TCR sensor adjustment failure
Relevant parts
Imaging unit /K
Toner cartridge /K
Printer control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Reinstall imaging unit
—
—
2
Reinstall toner cartridge
—
—
3
Change imaging unit/K
—
—
4
Change PRCB
—
—
Relevant parts
Imaging unit /C
Imaging unit /M
Imaging unit /Y
Printer control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Reinstall imaging unit
—
—
2
Change imaging unit
—
—
3
Change PRCB
—
—
Relevant parts
Imaging unit /K
Printer control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Reinstall imaging unit /K
—
—
2
Change imaging unit /K
—
—
3
Change PRCB
—
—
d
-Color
M
F
201
Y109660-1 Sevice Manual