2GL/2FV/2FW
1-5-15
(5)
The feed clutch does
not operate.
Broken feed clutch coil. Check for continuity across the coil. If none, replace the feed
clutch.
Poor contact in the feed
clutch connector terminals.
Reinsert the connector.
Defective harness between
connect PWB and engine/
high voltage PWB.
Check for continuity across the harness. If none, replace the char-
ness.
Defective engine/high volt-
age PWB.
Replace the engine/high voltage PWB. See page 1-6-17.
Defective connect PWB. Replace the connect PWB.
(6)
The eraser lamp
(PWB) does not turn
on.
Poor contact in the eraser
lamp (PWB) connector ter-
minals.
Reinsert the connector.
Defective eraser lamp
(PWB).
Check for continuity. If none, replace the eraser lamp (PWB). See
page 1-6-22.
Defective engine/high volt-
age PWB.
If the eraser lamp (PWB) turns on when YC8-2 on the engine/high
voltage PWB is held low, replace the engine/high voltage PWB.
See page 1-6-17.
(6)
The heater lamp
does not turn on.
Broken wire in heater lamp. Check for continuity across each heater lamp. If none, replace the
heater lamp. See page 1-6-11.
Thermal cutout triggered. Check for continuity across thermal cutout. If none, remove the
cause and replace the thermal cutout. See page 1-6-11.
(7)
The heater lamp
does not turn off.
Broken fuser thermistor.
Measure the resistance. If it is
∞Ω, replace the fuser thermistor.
See page 1-6-11.
Dirty sensor part of the
fuser thermistor.
Check visually and clean the fuser thermistor sensor parts. See
page 1-6-11.
(8)
No main charging.
Poor insertion main charger
unit.
See page 1-5-18.
Broken main charger wire.
Poor contact of main
charger terminal and high
voltage output terminal on
the engine/high voltage
PWB.
Defective engine/high volt-
age PWB.
(9)
No developing bias is
output.
Poor insertion developer
unit.
See page 1-6-6, 1-6-17, 1-5-18.
Poor contact of developing
bias terminal spring and
high voltage output termi-
nal (TAB1) on the engine/
high voltage PWB.
Defective engine/high volt-
age PWB.
Problem Causes Check procedures/corrective measures
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