Brother HL 1240 - B/W Laser Printer Service Manual page 125

S-2 Unable to print from application software with the serial interface. (HL-1250 only)
User Check
Check that the slide switch of the serial interface is in the correct position and the serial interface
setting are correctly set up with the DIP switches.
Possible cause Step
Failure inside 1
the printer
Main PCB 2
failure
RS-100M failure 3
S-3 Unable to print from application software under DOS.
User Check
(1) Check that the DOS application software interface settings match that of your printer.
(2) Check if the printer has any printer alarms active.
(3) Check if the appropriate printer is selected in your application software.
(4) (HL-1250 only) If the serial interface is used, check that the RS-232C serial interface is selected
with the slide switch. Check that the interface settings are correctly set up with the proper DIP
switches. Check that the serial parameters of baud rate, parity and stop bits match between your
application software and the printer.
Possible cause Step
Failure inside 1
the printer
Main PCB 2
failure
NOTE:
If this problem appears when using the RS-100M, follow the procedures in "S-2" on this page.
Check
Is it possible to print the test
page with the method of
Subsection 9.1 'Test Print
Mode' in this chapter?
Is it possible to print with
another PC, printer cable and
RS-100M?
Is it possible to print with
another PC and cable?
Check
Is it possible to print the test
page with the method of
Subsection 9.1 'Test Print
Mode' in this chapter?
Is it possible to print with
another PC and printer cable?
6-15
CHAPTER 6 TROUBLESHOOTING
Result Remedy
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 Remedy
No Identify the error type, then
refer to the specified section of
this chapter.
No Replace the main PCB.
Yes This problem may appear
under the specified system
environment. Check the
environment which the user
used.