Konica-Minolta bizhub 28e

While feeding a document

No beep sound when you place the document.
(The beep sound volume setting could be OFF.)

DS1 sensor defect

0 Press <Mode>, <*>, <2>, <2> to display the sensor input test mode.

1. Confirm the LCD indication changes by moving the DS1 sensor.

OFF: No document / ON: Document

1. Check the sensor harness is firmly connected.
2. If the LCD indication does not change, replace the DS1 sensor.
3. Replace the sensor harness. 5 Replace ADF board.
4. Replace the harness between ADF board and main control board.
5. Replace the main control board.

APS sensor defect

0 Press <Mode>, <*>, <2>, <2> to display the sensor input test mode.

1. Confirm that the LCD indication changes by opening and closing the platen cover.

OFF: Cover Open / ON: Document

1. Check the sensor harness is firmly connected.
2. If the LCD indication does not change, replace the APS sensor.
3. Replace the sensor harness. 5 Replace ADF board.
4. Replace the harness between ADF board and main control board.
5. Replace the main control board.

The machine feeds the document through the ADF without scanning.

DS1 or APS sensor defect

Check “DS1 sensor defect” and “APS sensor defect”.

While scanning a document

The scan starting and ending area are not correct.

DS2 sensor defect

0 Press <Mode>, <*>, <2>, <2> to display the sensor input test mode.

1. Confirm that the LCD indication changes by opening the ADF cover and inserting a paper.

OFF: No document / ON: Document

1. Check the sensor harness is firmly connected.
2. If the LCD indication does not change, replace the DS2 sensor.
3. Replace the sensor harness.
4. Replace the main control board.

DS3 sensor defect

0 Press <Mode>, <*>, <2>, <2> to display the sensor input test mode.

1. Confirm that the LCD indication changes by opening the ADF cover and inserting a paper.
2. Check the sensor harness is firmly connected.
3. If the LCD indication does not change, replace the DS3 sensor.
4. Replace the sensor harness. 5 Replace ADF board.
5. Replace the harness between ADF board and main control board.
6. Replace the main control board.

While a document exits

The LCD shows a warning while a document exits after scanning.

DS1, DS2, DS3, DRS or DEXIT
sensor defect

Check “DS1 sensor defect”, “DS2 sensor defect” and “DS3 sensor defect” in that order.
Perform <Mode>, <*>, <2>, <2> to display the sensor input test mode and confirm that DRS and DEXIT are working.

The LCD shows a warning after a document exits.

Others

The message, “Please close the flashing cover.” is displayed on the LCD.The flashing cover: The ADF cover

TXIL sensor defect

Press <Mode>, <*>, <2>, <2> to display the sensor input test mode.

1. Confirm that the LCD indication changes by opening
   and closing the ADF cover.
   OFF : Cover open / ON: Cover close
2. Check the sensor harness is firmly connected.
3. If the LCD indication does not change, replace the TXIL sensor.
4. Replace the sensor harness.
5. Replace ADF board.
6. Replace the harness between ADF board and main control board.
7. Replace the main control board.