Kyocera FS-1020D

2FM
1-5-6
Code Error indications Contents
Check procedures/corrective measures
Yes
Yes
No
No
No
No
No
Connect oscilloscope to
pin 4 (OUTPEN) of
YC07 on main board
(KP-1050).
Turn power switch off,
then on.
Turn power switch off,
then on.
Turn power switch on.
+5 V DC at pin 6 of
YC07 on main board
(KP-1050) ?
Does
pin 4 (OUTPEN) of
YC06 on main board (KP-
1050) goes high, then low
before "4200"
error?
Does pin 8
(PDN) of YC06 on
main board (KP-1050) output
pulse signal*, within 0.1 second
after pin 4 (OUTPEN) goes
high, then
low?
Replace harness
(2FM2602) between main
board and engine board.
Yes
Replace main board
(KP-1050). See page 1-
6-10.
Replace main board
(KP-1050). See page 1-
6-10.
Connect oscilloscope to
pin 4 (OUTPEN) and
pin 8 (PDN) of YC07 on
main board (KP-1050).
OK?
Yes
Yes
Turn power switch on.
OK?
End.
End.
Replace engine board
(KP-1051). See page 1-
6-9.
B
C
Continued
to next page.
Continued
to next page.
*: Pin photo diode
detect horizontal
synchronization signal
(Frequency: 1417 Hz,
Low level width: 10 µs)
START
4200 Laser scanner unit [Pin photo diode] error