Muratec MFX-2550 Field Engineering Manual

4-37
Section Step Check item Result Remedy
Scanner section
(Back side)
1 Are the mirrors, lens, DADF glass
and document glass dirty?
YES Clean.
If the trouble is not settled
by cleaning, adjust the
backgroundlevel.
2 Do the connection from CCD 
R-Scanner board  RADF board
Main control board  LPH board
 LPH connect board  LED unit
remain intact?
NO Reconnect / Replace harness
3
Isthetroublesettledwithabove
steps?
NO 1. Replace R-Scanner board.
2. Replace RADF board.
3. Replace main control board.
4. Replace LPH board.
5. Replace LPH connect board.
6. Replace LPH.
Printer section
Section Step Check item Result Remedy
Paper path 1
Ispaperpathdirtywithtoner? YES Clean.
Drum cartridge 2 Is there any cleaning trouble? YES Replace.
3 Is the drum dirty or damaged? YES Replace.
Fusing unit 4 Is the fusing roller or separation
scraper dirty or damaged?
YES Clean. / Replace.
Toner cartridge 5
Isthedevelopingrollerdirtyordam-
aged?
YES Replace.
Circuit boards 6 Are the connections from LPH to
high-voltageboard,andfromhigh-
voltageboardtomaincontrolboard
in good condition?
(Check plugs firmly plugged and
snapped harness)
NO Reconnect. / Replace harness.
7
Isthetroublesettledwithabove
steps?
NO 1. Replace drum cartridge.
2. Replace fusing unit.
3. Replace toner cartridge.
4. Replace LPH.
5. Replace LPH connect board.
6. Replace LPH board.
7. Replace main control board.
8.Replacehigh-voltagepower
board.

Muratec MFX-2550 Specifications

General

Brand	Muratec
Model	MFX-2550
Category	All in One Printer
Language	English