Brother HL-3040CN Service Manual page 104

■ Error code 9F
No Paper
Reload paper, then press Go.
No paper while printing
< >
User Check
- Load the paper into the paper tray.
■ Error code A1
Cover is Open
Close the Top Cover.
Top cover opened (The top cover open switch sticks at OFF.)
< >
User Check
- Close the top cover.
Step
1 Harness connection failure of top
cover switch ASSY
2 The member to press the top cover
switch at the right side of the inside
of the top cover is broken.
3 HVPS control PCB failure
4 Main PCB failure
Cause
3-40
Remedy
Check the harness connection of the top
cover switch ASSY and reconnect it.
Replace the top cover sub ASSY.
Replace the HVPS control PCB ASSY.
Replace the main PCB ASSY.
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