44..44..77 AAlll bl bllaacckk
4.4.4.4.88 DiDirt ort on thn the bae back ock of pf papaperer
<User Check><User Check>
-- Clean tClean the corona whe corona wire of the drire of the drum unit.um unit.
-- ReplaReplace the drum uce the drum unit with a nnit with a new one.ew one.
SStteepp CCaauussee RReemmeeddyy
11
Dirt on electrodes of the drum unitDirt on electrodes of the drum unit
and those of the machineand those of the machine
Clean the electrodes of the drum unit andClean the electrodes of the drum unit and
those of the machine. (Refer tothose of the machine. (Refer to Fig. 1-7
Fig. 1-7andand
Fig. 1-8
Fig. 1-8.).)
22
Connection failure of the laser unitConnection failure of the laser unit
flat cableflat cable
Reconnect the laser unit flat cable.Reconnect the laser unit flat cable.
33
Laser unit FG plate attachmentLaser unit FG plate attachment
failure (not grounded correctly)failure (not grounded correctly)
Check the contact of the laser unit FG Check the contact of the laser unit FG plate,plate,
and retighten the screws.and retighten the screws.
44
High voltage power supply PCBHigh voltage power supply PCB
failurefailure
Replace the high voltage power supply PCBReplace the high voltage power supply PCB
ASSY.ASSY.
55 LLaasseer r uunniit t ffaaiilluurree RReeppllaacce e tthhe e llaasseer r uunniitt..
66 MMaaiin n PPCCB B ffaaiilluurree RReeppllaacce e tthhe e mmaaiin n PPCCB B AASSSSYY..
<User Check><User Check>
-- This probleThis problem may disappear afm may disappear after printinter printing multipleg multiple
sheets of paper.sheets of paper.
-- ReplacReplace the toner ce the toner cartridgartridge with a new oe with a new one.ne.
SStteepp CCaauussee RReemmeeddyy
11 DDiirrt t oon n ppaappeer r ffeeeed d ssyysstteemm WWiippe e oofff f tthhe e ddiirrtt..
22 DDiirrt t oon n tthhe e ffuusseer r uunniitt RReeppllaacce e tthhe e ffuusseer r uunniitt..
To Next Page
Loading...
