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14
SF~7200
(2) Types of self-diagnosis
Failure in the table feed operation (MS7 malfunction)
02,01714
©
12
Failure in the table feed operation (MS6 malfunction or table drive unit
02,017 14
malfunction).
Failure in the table return operation (MS5 or table drive unit malfunction)
02,01>14
©
H1
Open heat roller thermal fuse
H2
Open heat roller thermistor
H3
H4
C
U
U2
Cc
Trouble in lens action. The lens does not come to the given position of the
26,277 14
normal or enlargement within 12 seconds after assignment of the normal or
enlarge mode.
+14
06> 14
:
.
°
Heat roller irregularly high temperature above 220 C
Heater low temperature trouble.
06> 14
. When the machines fails to reach the ready level (180°C) within 90 seconds
after power on.
. When the copy lamp is kept active for more than 15 seconds once after
going into the ready state.
. When the heater temperature went below 1 60°C for more than 4 minutes
once after going into the ready state (180°C).
Open copy lamp thermal fuse.
Pt
te
|
Shorted or open THVG unit or corona wire.
=
ee
pve
| Data transfer trouble between the main circuit and memory circuit.
~
CH (ON)
Open front cover or lower right over, or a failure in the doorswitch (DSW1,
(DSW2, DSW3).
Voltage drop in the memory backup battery (below 2.27V).
CH (Flicker)
Developing unit not inserted in the machine or connector contact failure.
Counter (SF71A) is not insert in personal counter mode.
14-2
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