Kyocera PF-760, Service Manual

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5H8-1
1-4-5
1-4-2 Self-diagnosis
(1) Self-diagnostic function
This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled and the problem dis-
played as a code consisting of C followed by a number, indicating the nature of the problem. A message is also displayed
requesting the user to call for service.
After removing the problem, the self-diagnostic function can be reset by turning cover switch off and back on.
(2) Self diagnostic codes
Code Contents
Remarks
Causes Check procedures/corrective measures
C1100 PF lift motor 1 error
A motor over-current signal is detected
continuously for 1 s or longer.
Poor contact in the
connector termi-
nals. Check the connection of connector YC27 on
the engine PWB and the connector on the
PF main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
PF lift motor 1 does
not rotate correctly
(the motor is over-
loaded). Check the gears and remedy if necessary.
C1110 PF lift motor 2 error
A motor over-current signal is detected
continuously for 1 s or longer.
Poor contact in the
connector termi-
nals. Check the connection of connector YC27 on
the engine PWB and the connector on the
PF main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
PF lift motor 2 does
not rotate correctly
(the motor is over-
loaded). Check the gears and remedy if necessary.
C1120 PF left lift position problem
Level switch 1 does not turn on within 30
s of PF lift motor 2 turning on.
Poor contact in the
connector termi-
nals. Check the connection of connector YC27 on
the engine PWB and the connector on the
PF main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective level
switch 1. Check if YC5-4 on the PF main PWB goes
low when level switch 1 is turned off. If not,
replace PF lift switch 1.
Defective PF lift
motor 2. Check for continuity across the coil. If none,
replace PF lift motor 2.
The PF left lift does
not rise properly. Check the gears and belts, and remedy if
necessary.
Y1120 3 0- 5 Service Manual