Olivetti d-Copia 4003MF, Service Manual

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7100 Toner sensor error
Sensor output value of 930 or
more continuously for 5 s.
Toner sensor
1. Check the toner sensor output.
2. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Toner sensor and drum PWB (YC3)
Drum PWB and drum connect PWB
(YC1)
Drum connect PWB and connect left
PWB (YC3)
Connect left PWB and control PWB
(YC3)
3. If the wiring is disconnected, shorted or
grounded, replace the wiring.
4. Check that the gears of the Developer
unit are not damaged and the spiral can
rotate.
5. Replace the Developer unit (see page 1-
5-30).
Toner motor
1. Draw out the toner container.
2. Check the drive gear can rotate or they
are not unusually loaded and, if
necessary, replace.
3. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Toner motor and drum PWB (YC4)
Drum PWB and drum connect PWB
(YC1)
Drum connect PWB and connect left
PWB (YC3)
Connect left PWB and control PWB
(YC3)
4. If the wiring is disconnected, shorted or
grounded, replace the wiring.
5. Replace the Toner motor.
Connect left PWB
Replace the connect left PWB (see page 2-
2-12).
Control PWB 1. Check the control software and upgrade
to the latest, if necessary.
2. Replace the control PWB and check for
correct operation (see page 2-2-12).
Code Contents Related parts
Check procedures/
corrective measures
Service Manual
Y116 540-5