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077-142 Pre Transfer Sensor On Jam
BSD on:CH8.12
Description
A specified time after Regi Motor On, the Pre Transfer Sensor does not turn On. (H stays displayed.)

Procedure
Enter DC330[077-113](Pre Transfer Sensor). Press Start. Slide out the Marking Drawer and place a piece of paper on the sensor.

Push in the Marking Drawer.

The display is L.
Yes No

Turn off the power. Check the following:

The wire between IOT PWB J439-B1 and Pre Transfer Sensor J191-1 for conductivity

The wire between IOT PWB J439-B2 and Pre Transfer Sensor J191-2 for an open wire or poor contact

The wire between IOT PWB J439-B3 and Pre Transfer Sensor J191-3 for conductivity

The Flexible Print Cable between IOT PWB J432 and MCU PWB J402 for poor connection

Drawer Connector P/J601 for bent pins/breakage/foreign objects

The sensor for dirt/improper installation

If no problem is found, replace the following parts in order.

Pre Transfer Sensor (PL 13.5)

Flexible Print Cable (PL 2.1)

IOT PWB (PL 2.1)

MCU PWB (PL 2.1)

Slide out the Marking Drawer and remove the paper from the sensor.

Push in the Marking Drawer.

The display has changed to H.
Yes No

Turn off the power. Check the following:

The wire between IOT PWB J439-B2 and Pre Transfer Sensor J191-2 for a short circuit.

The Flexible Print Cable between IOT PWB J432 and MCU PWB J402 for poor connection

Drawer Connector P/J601 for bent pins/breakage/foreign objects

The sensor for improper installation/light from outside

If no problem is found, replace the following parts in order.

Pre Transfer Sensor (PL 13.5)

Flexible Print Cable (PL 2.1)

IOT PWB (PL 2.1)

MCU PWB (PL 2.1)

Press Stop.

Cheat the IOT Front Door Interlock Switch.

Turn On DC330[077-006](Regi Motor). Press Start.

The motor is heard operating.
Yes No

Remove the IOT Rear Upper/Lower Cover. (PL 1.2)

+24VDC is measured between IOT PWB J441-11(+) and GND(-).
Yes No


+24VDC is measured between IOT PWB J433-1(+) and GND(-).
Yes No

Seeing CH1.12, check the INTLK +24VDC circuit to IOT PWB J433-1.

Turn off the power. Measure the resistance across Chip Fuse F3 on IOT PWB, using the tester. If 1 ohm or more is measured (normally 0.1 ohm - 0.5 ohm), the fuse has blown. Check that the Regi Motor has no excessive load. Replace the IOT PWB. (PL 2.1)

Turn off the power. Remove the Regi Unit. (REP 13.1.2)

Disconnect Connector J230 from the Regi Motor. Measure the motor winding resistance.

P230-2 to P230-1/ P230-3

P230-5 to P230-4/ P230-6

Each resistance is approx. 2.2ohms+/-0.22 ohm (25 deg.C).
Yes No

Replace the Regi Motor. (PL 13.4)

Reconnect Connector J230 to the Regi Motor. Reinstall the Regi Unit. Push in the Marking Drawer.

Disconnect Connector J441 on the IOT PWB.

Check the following for conductivity.

IOT PWB J441-11 to IOT PWB J441-10/12

IOT PWB J441-8 to IOT PWB J441-7/9

Each resistance is approx. 2.2ohms+/-0.22 ohm (25 deg.C).
Yes No

Check either problem wire for an open wire or poor contact.

Check if the Flexible Print Cable is properly connected between IOT PWB J432 and MCU PWB J402. If no problem is found, replace the following parts in order.

Flexible Print Cable (PL 2.1)

IOT PWB (PL 2.1)

MCU PWB (PL 2.1)

Check the following:

Regi Roll for dirt/wear/poor rotation (PL 13.4)

Regi Pinch Roll for dirt/wear/poor rotation (PL 13.15)

Whether Tension Spring is out of place/has deteriorated. (PL 13.15)

Gear for wear/breakage (PL 13.4)

Inlet Chute for deformation (PL 13.5)

Whether the Seal is peeling off. (PL 13.5)