Brother HL-1040 - Manual (Page 206)

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Error Action
Serial Interface Input
Buffer Overflow (For
HL-1040/1050 Only)
Press the panel
switch to resume printing.
Check the communication parameters such as the handshake
protocols on both your computer and printer.
If the error occurs again, the interface hardware may be
damaged. Consult your dealer.
✒ NOTE
If the printer does not operate as you expect it to, it is recommended that you turn off the
power switch, wait a few seconds and then turn it on again. If you still have problems, consult
your dealer or our authorized service representative.
Service Calls
If an unrecoverable error occurs, the printer indicates the need for a service call by lighting all
the lamps and then the following combination of lamps alternately:
Service Call Fuser
malfunction
Laser BD
malfunction Scanner
malfunction ROM
error D-RAM
error
Drum ● ❍ ● ❍ ●
Alarm ❍ ● ● ❍ ❍
Ready ❍ ❍ ❍ ● ●
Data ❍ ❍ ❍ ❍ ❍
Service Call Service A Service B Service C Service D Service E0
Drum ❍ ● ❍ ● ❍
Alarm ● ● ❍ ❍ ●
Ready ● ● ❍ ❍ ❍
Data ❍ ❍ ● ● ●
Service Call Service E1 Service P NV-RAM
error
CPU runtime
error
Drum ● ❍ ● ●
Alarm ● ❍ ❍ ●
Ready ❍ ● ● ● ❍ OFF
Data ● ● ● ● ● ON
If you see any of these service call indications, turn off the power switch, wait a few seconds
and then turn it on again and try to print again.
If you cannot clear the error and see the same service call indication after turning on the
printer, consult your dealer or our authorized service representative. Report the error status
and situation referring to the above table.
✒ NOTE
Be sure that the top cover and the main controller board are firmly installed.
✒ NOTE
If you have any problems other than described in this section, see “CHAPTER 6
TROUBLESHOOTING, Q & A” of the On-line User’s Guide . If you are still unable to clear
the problem after reviewing the information in the User’s Guide, consult your dealer.