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CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
3-22
States and LED Flashing Intervals
* The same error can occur owing to activation error in the fluorescent lamp (because of deterioration
over time). If the LED flashes in threes or fours, check to see if the glass around the filament on
both sides of the lamp is not black.
Flashing intervals
u
Flashes at 0.5-sec intervals
u
OFF for 4 sec; then, flashes twice
at 0.5-sec intervals
u
OFF for 4 sec; then, flashes 5 times
at 0.5-sec intervals.
u
OFF for 4 sec; then, flashes 3times
at 0.5-sec intervals.
u
OFF for 4 sec; then, flashes 4 times
at 0.5-sec intervals.
u
OFF for 4 sec; then, flashes 6 times
at 0.5-sec intervals.
State
Normal
Over-current/over-
voltage detected
Error in
communication
with the DC
controller PCB
Low-voltage
control error* in
standby
Low-voltage
control error*
during copying
DC controller PCB
check sum
Error detection
Description
The composite power supply PCB is
operating normally.
An over-current/over-voltage condition
has been detected in the +24-VU or
+24-VR output.
An over-current condition has been
detected because of wire trapping or the
like.
n
The control panel indicates 'E803'.
An error has occurred in
communication between the DC
controller PCB and the composite
power supply PCB, not updating the
communication data for 8 sec or more.
Note that this error may not flash/turn
on LED100 on the DC controller PCB.
•
The output of the main transformer
stops.
•
The control panel indicates 'E191'.
In standby, the difference between the
+24-VR setting and the actual control
value is larger than indicated.
•
The output of the main transformer
stops.
•
Error data is sent to the DC
controller PCB.
•
The control panel indicates 'E803'.
During copying, the difference between
the +24-VR setting and the actual
control value is larger than indicated.
•
+24 VR is set to standby voltage
(+18 VR).
•
Error data is sent to the DC
controller PCB.
•
The control panel indicates 'E803'.
The CPU on the DC controller PCB has
detected a check sum of communication
data twice or more continuously.
•
The output of the main transformer
stops.
•
The control panel indicates 'E191'.
ON
OFF
0.5 sec
0.5 sec
ON
OFF
4 sec
Twice
0.5 sec
3 times
ON
OFF
4 sec
0.5 sec
4 times
ON
OFF
4 sec
0.5 sec
5 times
ON
OFF
4 sec
0.5 sec
6 times
ON
OFF
4 sec
0.5 sec