Error - Kyocera FS-1920 Service Manual

2FP/2FY/2FR
Code
5300 Eraser lamp error
• The ERADEAD* signal (delivered from
the eraser lamp blown-out detection
circuit on the engine board) goes low
continuously more than 1 second, while
eraser lamp is on.
START
Turn power switch off.
Remove and check
harness (S02407)
between engine board
(KP-1081) and sensor
board (KP-1077).
OK?
Remove and check
harness (S02412)
between drum board
(KP-1064) and eraser
lamp [board KP-1067].
OK?
Check deformation pins
of connector YC702 on
sensor board.
Deformed ?
Turn power switch on
and print status page.
1-5-8
Contents
NOTE:
If the problem is not solved by
this flow chart replace the
following items:
Engine board (KP-1081)
Sensor board (KP-1077)
Drum unit
No
Yes
Replace sensor board (KP-
1077) and linked harness
(S02407).
No
Yes
Replace harness (S02412)
between drum board (KP-
1064) and eraser lamp [board
KP-1067].
Yes
Remedy pins or replace
No
sensor board (KP-1077).
See page 1-6-24.
Causes Check procedures/corrective measures
Blown-out eraser Follow the flow chart below.
lamp [board KP-
1067].
Defective CPU U1
on the engine
board.
Improper connec-
tor insertion to the
eraser lamp
[board KP-1067].
Measure voltage #1 pin
(ERASEDR*) pins of
connector YC701 on
sensor board (KP-1077).
Replace sensor board
(KP-1077). See page 1-
6-24.
Remarks
Yes
Approximately
0 V DC?
No
Yes
Approximately
14 to 15.5 V DC?
No
Replace engine board
(KP-1081. See page 1-
6-20.
Yes
Approximately
24 V DC?
No
Replace drum unit.
Replace drum unit.
See page 1-6-10.
See page 5-12.