1-41
Confidential
■
Downward fogging of solid color
■
Horizontal lines
User Check
• Toner may be empty. Replace the toner cartridge with a new one.
Step
Cause
Check
Result
Remedy
1
HVPS PCB
failure
Is the problem solved
after replacing the
HVPS PCB ASSY?
Yes
Replace the HVPS PCB
ASSY.
2
Main PCB failure
Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.
User Check
• The paper tray ground terminal located in the machine
body may be dirty. Clean the contact with a dry cloth.
Step
Cause
Check
Result
Remedy
1
Dirt on charge
electrode
Are the electrodes on
the drum unit and
machine body dirty?
Yes
Clean both electrodes.
(Refer to
)
2
Paper tray
ground terminal
located in
machine body
Is the paper tray ground
terminal bent, which is
located in the machine
body?
Yes
Correct the bending of
paper tray ground terminal.
3
Laser unit failure
Is the problem solved
after replacing the laser
unit?
Yes
Replace the laser unit.
Содержание DCP-7030
Страница 78: ...2 2 Confidential 2 PERIODICAL PEPLACEMENT PARTS There are no parts to be replaced periodically ...
Страница 133: ...3 55 Confidential 8 12 8 ADDRESS LABEL 1 Remove the Address label from the Panel unit Fig 3 53 Address label Panel unit ...
Страница 150: ...3 72 Confidential 8 27 FILTER ASSY 1 Remove the Filter ASSY from the Main body Fig 3 72 Filter ASSY Front side ...
Страница 178: ...3 100 Confidential 8 39 RUBBER FOOT 1 Remove the two Rubber feet from the Main body Fig 3 104 Rubber foot Front side ...
Страница 201: ...5 5 Confidential Print sample Fig 5 1 ...
Страница 226: ...5 30 Confidential Location of fans Fig 5 13 Fan motor 60 unit Right side ...
Страница 233: ...6 1 Confidential CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM High voltage Power Supply PCB Circuit Diagram ...
Страница 234: ...6 2 Confidential LVPS PCB Circuit Diagram 100V ...
Страница 235: ...6 3 Confidential LVPS PCB Circuit Diagram 200V ...
Страница 239: ...6 7 Confidential Wiring Diagram ...