Brother HL-1850 Service Manual page 193

Error Messages Meaning
Malfunction of fuser
ERROR E49
detected by hard wear.
Malfunction of fuser
ERROR E50
detected
Malfunction of laser
ERROR E51
beam detector
Malfunction of laser unit
ERROR E52
motor
Malfunction of main
ERROR E54
motor
Bus error
ERROR H60
Program ROM checksum
ERROR H61
error
D-RAM error
ERROR H63
NV-RAM writing error
ERROR H66
NV-RAM reading error
ERROR H67
NV-RAM bus error
ERROR H68
Flash reading error
ERROR H73
Flash writing error
ERROR H74
PCI registering error
ERROR H37
PCI bus error
ERROR H38
BR-NET typing error
ERROR H39
Remedy
Turn off the printer. Wait a few seconds,
and then turn it on again. Refer to
‘Fuser failure’ in this chapter.
Turn off the printer. Wait a few seconds,
and then turn it on again. Refer to
‘Fuser failure’ in this chapter.
Turn off the printer. Wait a few seconds,
and then turn it on again. Refer to
‘Scanner failure’
Turn off the printer. Wait a few seconds,
and then turn it on again. Refer to
‘Scanner failure’
Turn off the printer. Wait a few seconds,
and then turn it on again. Refer to
‘No paper supplied’
Turn off the printer. Wait a few seconds,
and then turn it on again.
Turn off the printer. Wait a few seconds,
and then turn it on again.
Turn off the printer. Wait a few seconds,
and then turn it on again. Refer to
‘ROM error / D-RAM error / NV-RAM error’
in this chapter.
Turn off the printer. Wait a few seconds,
and then turn it on again. Refer to
‘ROM error / D-RAM error / NV-RAM error’
in this chapter.
Turn off the printer. Wait a few seconds,
and then turn it on again. Refer to
‘ROM error / D-RAM error / NV-RAM error’
in this chapter.
Turn off the printer. Wait a few seconds,
and then turn it on again. Refer to
‘ROM error / D-RAM error / NV-RAM error’
in this chapter.
Turn off the printer. Wait a few seconds,
and then turn it on again.
Turn off the printer. Wait a few seconds,
and then turn it on again.
Turn off the printer. Wait a few seconds,
and then turn it on again.
Turn off the printer. Wait a few seconds,
and then turn it on again. Refer to
‘PCI BUS error’
Turn off the printer. Wait a few seconds,
6-9
HL-1850/1870N SERVICE MANUAL
PR2001022
M-9
M-9
M-8
in this chapter.
M-8
in this chapter.
M-4
in this chapter.
M-10
M-10
M-10
M-10
M-13
is chapter.