Brother HL-4200CN, Руководство по обслуживанию

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V-80
<Streak in the shaft direction>
Fig.5-23 Fig.5-24
Condition:
Black or white streaks in the shaft direction.
Initial check:
Parts of different specifications, improper installation, damage, deformation, dirt, foreign
substance attached, etc.
Major parts to be checked:
Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY,
MCU HL-4200, SUB HVPS
Item Check Remedy
1
Faulty print head cartridge ASSY
Is the image quality improved if print head cartridge
ASSY is replaced?
Replace the print head
cartridge ASSY
2
Faulty scanner ASSY
Is the image quality improved if scanner ASSY is
replaced?
Replace the scanner
ASSY
3
Faulty fuser ASSY
Check the heat roll and NIP belt for evidence of
damage, dirt, or foreign substances.
Replace the fuser ASSY
4
Faulty transfer roll cartridge ASSY
Is the image quality improved if transfer roll
cartridge ASSY is replaced?
Replace the transfer roll
cartridge ASSY
5
Check periodicity
Periodicity found?
Replace the parts
concerned.
(See the table below)
6
Faulty ESS PWBA HBN DRV
Is the image quality improved if ESS PWBA HBN
DRV is replaced?
Replace the ESS PWBA
HBN DRV