Muratec MFX-2550 Field Engineering Manual page 257

Symptom
While The machine feeds the
feeding document through the ADF
without scanning.
document
While The scan starting and end-
scanning ing area are not correct.
a docu-
ment
The LCD shows a warn-
While a
ing while a document exits
document
exits after scanning.
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
Possible Cause
0 Press <Setting>, <*>, <2>, <2> to display the sensor
DS2 sensor defect
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 I f the LCD indication does not change, replace the
4 Replace the sensor harness.
5 Replace the main control board.
0 Press <Setting>, <*>, <2>, <2> to display the sensor
DS3 sensor defect
(MFX-2570 only) 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 the CCD board.
6 Replace the harness between CCD board and
R-Scanner board.
7 Replace the R-Scanner board.
8 Replace the harness between the R-Scanner board
and RADF board.
7 Replace the RADF board.
8 Replace the harness between the RADF board and
main control board.
9 Replace the main control board.
DS1, DS2 or DS3 Check "DS1 sensor defect", "DS2 sensor defect" and
sensor defect "DS3 sensor defect" in that order.
0 Press <Setting>, <*>, <2>, <2> to display the sensor
TXIL sensor defect
input test mode.
1 Confirm that the LCD indication changes by opening
and closing the ADF cover.
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 (MFX-2570 only) Replace the RADF board.
6 (MFX-2570 only) Replace the harness between the
RADF board and main control board.
7 Replace the connect board.
4-44
Countermeasure
OFF: No document / ON: Document
DS2 sensor.
OFF : Cover open / ON: Cover close