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Brother hp-1240 laser printer. won't print. blinking red "alarm" light

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5 Suggested Answers

printech
  • 159 Answers

SOURCE: Brother Laser Printer HL 1440

tray this
The procedure for the factory inspection mode is as follows.
(1) Turn off the printer power switch, open the front cover, and remove the drum unit.
(2) Turn on the printer power switch while holding down the control panel button. The Drum
LED comes ON.
(3) Lightly press the panel button again.
(4) Check that all the LEDs except the Ready LED are OFF.
✒ If the toner sensor is ON, the Drum LED stays ON (error).
✒ If the front registration sensor is ON, the Alarm LED stays ON (error).
✒ If the upper paper cassette sensor is ON, the Data LED stays ON. (error) (HL-1250
only)
NOTE:
The lower paper cassette solenoid is turned ON/OFF even if the panel button is not pressed.
(5) Check the rear registration sensor.
✒ If the rear registration sensor is stuck backwards, the Ready LED stays OFF. (error)
✒ If the rear registration sensor is moved back and forth, the Ready LED comes ON at
any time. (error)
(6) Check that only the Data LED comes ON while pressing the panel button.
✒ If the paper eject sensor is ON, the Drum LED stays ON. (error)
✒ If the lower paper cassette registration sensor is ON, the Ready LED stays ON. (error)
If the registration sensor is ON, the lower paper cassette solenoid is turned ON, and
the Ready LED also stays ON. (HL-1250 only)
NOTE:
The lower paper cassette solenoid is turned ON/OFF even if the panel button is not pressed.
(7) Install the drum unit.
✒ Check that the Drum LED goes ON and the Ready LED goes OFF.
(8) Close the front cover.
(9) Continue to press the control panel button.
✒ Check that the Data LED stays OFF.
(10) Release the panel button.
(11) If all the sensors except the toner sensor are correct, the printer goes back to the Ready
status.
If any error is detected, the printer stays in the inspection mode.

Posted on Apr 03, 2008

printech
  • 159 Answers

SOURCE: Ready and Alarm light keeps blinking on Brother HL-1240

check the sensors maybe stuck

Posted on Sep 06, 2008

rscheutz
  • 54 Answers

SOURCE: won't print. blinking red paper light flashing

This usually means your printer is out of paper or there is a paper jam somewhere.

Posted on Mar 25, 2009

  • 526 Answers

SOURCE: We have a Brother H

generally, if the alarm data are blinking every 5 seconds, that indicates the toner is low.
there are no other possible errors. may be your toner is completely empty as well. are the other 2 lights blinking or on?

Posted on Apr 17, 2009

  • 114 Answers

SOURCE: Brother Hl-1240 laser printer all 4 lights started

main board pcb need to be replace.

Posted on Jul 18, 2010

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