Konica Minolta BIZHUB 25E Field Engineering Manual page 246

No. Symptom
6 The warning
message " Lamp
error. Call for
service." is
displayed.
7 The message
"No Paper" is
displayed.
8 Paper jams or the
message "Open
the flashing cover
and check......" is
displayed.
What to confirm
1. Has the lamp been illuminated?
2. Is the CIS harness connecting
correctly?
3. Are the sheet document press or
back ground level plate dirty?
4. Is the document glass dirty?
5. Are the carriage belts or the home
sensor attached correctly?
6. If you replace the home sensor or
the connecting harness, the symptom
will be fixed.
7. If you replace the CIS or the
connecting harness, the symptom
will be fixed.
8. If you replace the carriage or the
connecting harness, the symptom
will be fixed.
9. If you replace the main control
board or the connecting harness, the
symptom will be fixed.
1. Did you load paper in the cassette
properly?
2. Press the paper detection feeler
when the machine is in ready mode,
and check the sensor output changes
to +3.3V through GND.
Cassette 1 : Main control board P23-
7
Cassette 2 : 2nd CSST board P3-1
Cassette 3 : 3rd CSST board P3-1
Cassette 2 : 4th CSST board P3-1
3. If you replace the main control
board, the symptom will be fixed.
1. Is there any paper jam on the paper
pass?
2. Is there electrical continuity in the
harness between the PSS sensor
and the main control board?
3. Is there electrical continuity in the
harness between the PDS sensor
and the main control board?
4. If you replace the PSS sensor or
the PDS sensor, the message will
disappear.
5. If you replace the main control
board, the message will disappear.
Countermeasure
Yes Check No. 2.
No Check No. 7.
Yes Check No. 3.
No Connect the harness.
Yes Clean, or replace them.
No Check No. 4.
Yes Clean, or replace them.
No Check No. 5.
Yes Check No. 4.
No Reattach them.
Yes Replace the sensor or the harness.
No Check No. 7.
Yes Replace the carriage or the harness.
Check No. 8.
No
Yes Replace the circuit board or the
harness.
No Check No. 9.
Yes Replace the main control board.
No Replace the machine.
Yes Check No.2.
No Re-load paper.
Yes Replace the sensor or the harness.
No Check No. 3.
Yes Replace the sensor or the harness.
No Check No. 3.
Yes Replace the sensor or the harness.
No Check No. 3.
Yes Replace the sensor or the harness.
No Check No. 3.
Yes Replace the main control board.
No Replace the machine.
Yes Remove the paper.
No Check No. 2.
Yes Check No. 3.
No Replace the PSS sensor or the
connecting harness.
YES Check No. 4.
NO Replace the connecting harness.
Yes Replace the sensor.
No Check No. 5.
Yes Replace the main control board.
No Replace the machine.
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