Brother DCP-7030 Service Manual page 32

■ Error code 7D
Drum Error
Open the front cover, then clean the corona wire of drum unit
according to the label.
Dirt on drum unit
User Check
• Clean the corona wire of the drum unit.
• Replace the drum unit with a new one.
Step
Dirt or dust on drum unit
1
electrodes
2 HVPS PCB failure
3 Main PCB failure
■ Error code 7F
Size mismatch
Fax received. Set correct paper size in menu.
Fax paper setting mismatch (The setting paper becomes besides the A4/Letter/Legal/Folio.)
User Check
• Set the A4/Letter/Legal/Folio using the paper size setting in menu.
Step
1 Main PCB failure
■ Error code 80
Size mismatch
Reload correct paper, then press Start.
Fax paper size is incorrect
(The registration rear sensor detected the paper that is smaller than the letter size.)
User Check
• Set the paper of A4 or LETTER-size on the paper tray.
Step
Registration front actuator
1
catching in some position
2 Main PCB failure
Cause
Cause
Cause
1-14
Remedy
Clean the electrodes on the drum unit.
(Refer to Fig. 1-1.)
Replace the HVPS PCB ASSY.
Replace the main PCB ASSY.
Remedy
Replace the main PCB ASSY.
Remedy
Re-assemble the registration front actuator.
Replace the main PCB ASSY.
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