Brother 1240 Service Manual page 138

CHAPTER 6 TROUBLESHOOTING
Unable to print from application software with an Apple Macintosh
S-4
Computer. (HL-1250 only)
User Check
(1) Check that the supplied Macintosh printer driver is installed in the System Folder and it is
selected with Chooser.
(2) Check the PORT selection within the Chooser. It should match the port to which you physically
attached the printer cable.
(3) Check that the serial slide switch of the optional interface board is in the Apple (RS-422A)
position.
(4) Check the printer cable type: you cannot use a Local Talk or straight-through cable.
Possible cause
Failure inside
the printer
Main PCB
failure
RS-100M failure
Although the USB driver is installed, it is unable to find the BRUSB: port.
S-5
(HL-1240/1250/1270N only)
User Check
(1) Re-install the USB driver by following the steps below;
i) Double-click the file "DeinsUSB.exe" in the USB directory of the CD-ROM or the floppy disk.
ii) Turn the printer off and on again.
iii) "Add New Hardware Wizard" is launched again, follow the instructions in the Wizard to re-
install the driver.
(2) Try to connect the printer directly to the computer if it is connected through a network.
Possible cause
Computer
settings
USB cable /
printer damage
Step Check
1 Is it possible to print the test
page with the method of
Subsection 10.1 'Test Print
Mode' in this chapter?
2 Is it possible to print with
another PC, printer cable and
RS-100M?
3 Is it possible to print with
another PC and cable?
Step Check
1 Does 'Universal Serial Bus
Controllers' appear in the
Device Manager tab of 'System
Properties' in Control Panel?
2 Does the 'BRUSB' port appear
in the Device Manager tab of
'System Properties' in Control
Panel?
Result
No Identify the error type, then
refer to the specified section of
this chapter.
No Replace the main PCB.
No Replace the RS-100M.
Yes This problem may appear
under the specified system
environment. Check the
environment which the user
used.
Result
No This problem can be caused
by your computer settings.
See the computer manual.
No The USB cable is damaged.
Replace the cable.
If the same problem appears,
the printer will be damaged.
6-16
Remedy
Remedy