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093-311 Dispense Broken
Bsd-on:CH9.7

Dispense Motor has failed.

Procedure
Enter the Diag. Enter DC330[093-003](Dispense Motor). Select Start.

Dispense Motor is heard rotating. (ON duration is 2 sec.)
Yes No

Open the PWB Chassis. (REP 2.1.1)

+24VDC is measured between J430-8 (+) on the IOT PWB and GND (-).
Yes No

Seeing BSD CH1.8, check the +24VDC circuit to J430-8 on the IOT PWB.

Turn off the power. Disconnect Connectors P/J201 on the Dispense Motor.

Measure the wire-wound resistance of the Dispense Motor. The resistance between P201-1 and -2 pins is between 22.0 and 27.0 ohms.
Yes No

Replace the Dispense Motor (PL 12.4).

Check the following for continuity:

IOT PWB J436-A2 to Dispense Motor J201-1

IOT PWB J436-A1 to Dispense Motor J201-2

Every resistance is 1 ohm or less.
Yes No

Check any wire with more than 1 ohm for an open wire or poor contact.

Perform the following:

Disconnect and reconnect the cable between J431 on the IOT PWB and J401 on the MCU PWB.

Remove the Toner Dispenser. (REP 12.1.2) Check that there is no such load as poor Auger rotation, toner blocking and Drive gears binding.

If no problem is found, replace the Flexible Print Cable (PL 2.1), IOT PWB (PL 2.1) and MCU PWB (PL 2.1) in order.

Open the PWB Chassis. (REP 2.1.1)

+5VDC is measured between Relay Connectors J690-1 (+) and -3(-).
Yes No

+5VDC is measured between J406-B8 (+) and -B6 (-) on the MCU PWB.
Yes No

+5VDC is measured between J400-2 (+) on the MCU PWB and GND (-).
Yes No

Seeing BSD CH1.6, check the +5VDC circuit to J400-2 on the MCU PWB.

Replace the MCU PWB (PL 2.1).

Check the wires between J406-B8 on the MCU PWB and Relay Connector J470-1, and between J406-B6 on the MCU PWB and Relay Connector J470-3 for an open wire or poor contact.

Disconnect Relay Connector J470.

+3.3VDC is measured between Relay Connector J470-2 (+) and GND (-).
Yes No

Check the wire between Relay Connector J470-2 and J406-B7 on the MCU PWB for a short to the frame. If the wire is good, replace the MCU PWB (PL 2.1).

Turn off the power. Remove the Toner Dispenser. (REP 12.1.2)

Check the following for continuity:

Relay Connector P690-1 to Low Toner Sensor J140-3

Relay Connector P690-2 to Low Toner Sensor J140-2

Relay Connector P690-3 to Low Toner Sensor J140-1

Every resistance is 1 ohm or less.
Yes No

Check any wire with more than 1 ohm for an open wire or poor contact.

Remove the Low Toner Sensor.

There is any toner on the detection area of the Low Toner Sensor.
Yes No

Check for toner blocking, poor Auger rotation, gears binding, etc. Replace defective parts, if any (PL 12.7).

Replace the Low Toner Sensor (PL 12.7).