Trouble code
Description
Main
code
Sub
code
F3 12 Content Upper cassette lift-up trouble
Detail UPED does not turn on within the specified
time.
ULUD does not turn on within the specified
time.
Cause UPED or ULUD defective
Upper cassette lift-up motor defective
Improper connection of harness between
PCU PWB, lift-up unit, and paper feed unit.
Check
and
remedy
Check UPED, ULUD and their harness
and connector.
Check lift-up unit.
F3 22 Content Lower cassette lift-up trouble
Detail LPED does not turn on within the specified
time.
LLUD does not turn on within the specified
time.
Cause LPED or LLUD defective
Lower cassette lift-up motor defective
Improper connection of harness between
PCU PWB, lift-up unit, and paper feed unit.
Check
and
remedy
Check LPED, LLUD, their harnesses and
connectors.
Check lift-up unit.
F5 00 Content Copy lamp lighting error
Detail Copy lamp does not light despite the
output of lighting signal.
Copy lamp lights without the output of
lighting signal.
Cause DC power supply defective
Control PWB defective
Copy lamp defective
Improper connection of harness between
PCU PWB, DC power supply unit and copy
lamp unit
Check
and
remedy
Check copy lamp for lighting with SIM5-3.
Check harnesses and connectors between
PCU PWB, DC power supply and copy
lamp unit
H2 00 Content Thermister open
Fusing unit not installed
Detail Thermister is open (more than 4.6-V input
voltage is detected).
Fusing unit not installed
Cause Thermister defective
Control PWB defective
Improper connection of fusing connector
AC power supply defective
Fusing unit not installed
Check
and
remedy
Check harness and connector between
thermister and control PWB.
Clear the display of self-diagnostics with
SIM14.
Trouble code
Description
Main
code
Sub
code
H3 00 Content Too hot fusing section
Detail The fusing temperature is over 241.5#C
(less than 1.3-V input voltage is detected.)
Cause Thermister defective
Control PWB defective
Improper connection of fusing unit
connector
AC power supply defective
Check
and
remedy
Check heater lamp operation with SIM5-2.
If lamp blinks properly:
Check thermister and its harness.
Check thermister input circuit of control
PWB.
If lamp lights and stays lit:
Check lamp control circuits of AC PWB
and control PWB.
Clear the trouble with SIM14.
H4 00 Content Too cold fusing section
Detail The temperature does not reach the preset
value within the specified time (3 min. in
usual modes; 5 min. in curl correction
mode.) after the power relay is turned on.
Cause Thermister defective
Heater lamp defective
Control PWB defective
Thermostat defective
AC power supply defective
Interlock switch defective
Check
and
remedy
Check heater lamp for blinking with SIM5-2.
If lamp blinks properly:
Check thermister and its harness.
Check thermister input circuit of control
PWB.
If lamp does not light:
Check heater lamp for broken wire and
thermostat for operation.
Check interlock switch.
Check lamp control circuit of AC PWB
and control PWB.
Clear the trouble with SIM14.
L1 00 Content Scanner field trouble
No TRC or RRC output trouble
Detail Scanner field is not finished within 10
seconds.
TRC or RRC output is not produced within
5 seconds after the start of scanner field.
Cause Mirror unit defective
Scanner wire disconnected
Check
and
remedy
Check scanning operation with SIM1-1.
L3 00 Content Scanner return trouble
Detail Scanner return is not finished within 3.5
seconds.
Cause Mirror unit defective
Scanner wire disconnected
Check
and
remedy
Check scanning operation with SIM1-1.
9 – 95
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