Brother HL-1260 - Manual (Page 87)

VI - 10
Possible cause Step Check Result Remedy
Top margin
setting error 1 Does self test printing have no problem? Yes Check again the top margin
setting in the printing data.
Paper load in
the cassette 2 Is over-amount of paper than specified load
on the cassette? Yes Reduce the paper load below
the specified limit.
Faulty registration I-13
Paper failure 3 Does print quality improve when
recommended paper is used? Yes Use recommended paper.
Paper failure 4 Is paper curled? Yes Use recommended fresh
paper without curl.
Improper Y
offset setting 5 Does print quality improve when Y offset
setting is changed? Yes Ajust Y offset setting to an
appropriate value.
Jam remove
cover failure 6 Is the jam remove cover deformed? Yes Replace the jam remove
cover.
Failure in
regist sensor
actuator motion 7 Does the regist sensor actuator operate
smoothly? No Reassemble the actuator
and, if the problem is not
resolved, replace the actuator.
Regist sensor
failure 8 Is the voltage at the pin 5 of the connector P3
of the main PCB 5V when no paper passes
and 0V when paper passes? No Replace the paper feed/size-
sw PCB assy or the harness
and, if the problem remains,
replace the main PCB assy.
Paper feed
roller failure Yes Replace the paper feed roller
assy.
Possible cause Step Check Result Remedy
Fixing unit release
spacer not
removed 1 Is the fixing unit release spacer removed? No Remove the fixing unit
release spacer.
Paper failure 3 Is thick paper over than 36lb (135g/m 2 ) used? Yes Instruct the user to use the
paper whose thickness is
less than the recommended
value.
Poor fixing I-14
Thermistor
failure 4 Is the voltage at the pin 3 of the connector
P11 of the main PCB is controlled within
1.80±0.10V during continuous printing? No Replace the fixing unit.
Replace the fixing unit. Fixing unit
failure Yes
2 MEDIA TYPE
setting Yes Is the MEDIA TYPE set to TRANSPARENCY? Set the MEDIA TYPE to
REGULAR or THICK PAPER.