[FAX] button: ON/[COPY] button: OFF/[SCAN] button: OFF
([FAX] LED: ON/[COPY] LED: OFF/[SCAN] LED: OFF)
Highlighted display Normal display
B Waste toner box full detection sensor Toner bag full Not full
IH board destination detection signal-1
IH board destination detection signal-0
Developer unit drive ready signal
B Fuser unit drive ready signal
Abnormally rotated
(or stopped)
Normally rotated
Color developer units drive ready signal
D
Upper exit tray paper full detection
sensor
Full Not full
E
K cartridge genuine toner detection
signal
Normal Abnormal
F
C cartridge genuine toner detection
signal
Normal Abnormal
G
M cartridge genuine toner detection
signal
Normal Abnormal
H
Y cartridge genuine toner detection
signal
Normal Abnormal
B
Thermopile wire breaking detection
signal
Normal Broken
C Fuser roller temperature abnormality Normal Excessively high
D Fuser unit connection status Connected Not connected
E IH enabling IH forcible OFF IH enabled
F
Fuser belt rotation detection sensor
damage detection
Normal
(damaged or
[4]
[3]
A
Abnormally rotated
(or stopped)
Normally rotated
C
Abnormally rotated
(or stopped)
Normally rotated
[2]
A OFF (H) ON (L)
B OFF (H) ON (L)
[1]
C Waste toner detection sensor Box present
Digital key Button Items to check