The alarm light and data light blinks
On this printer, the alarm and data lights mean that the toner cartridge is empty. When you replace the toner, be sure to slide the corona wire cleaner across and back. This is the small light blue plastic piece on top of the drum cartridge. You'll see a small arrow in the plastic. Just slide it back and forth once or twice each time you replace the toner cartridge.
Guest -
If all four lights are blinking on and off, with no change on the alternate blinkings - then it is the CPU that has the problem. I don't know the cost involved in repairing/replacing that, but it might be cheaper than repalcing the printer.
If you do decide to replace the printer, I'd recommend going with the HL5240. I've upgraded from HL1440's to the HL5240 and have had great results overall. We put the units through an extreme workout, and they keep on trucking.
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All lights are blinking and I can not get anything to print
SOURCE: Drum, alarm, and data lights on--won't prnt
This unit might need resetting!
Here's how..
There's two ways to reset it
First: Soft Reset
1. Open front cover.
2. Hold down button located under LED's until all LED's
are lit.
3. Release button and make sure drum LED is off, then
4. Close cover
Second: Factory Reset
1. Turn the printer off.
2. Hold in the circular button on the front panel of the printer.
3. Turn the printer back on.
4. When the DRUM light is lit by itself let go of the button.
5. Hold in the circular button on the front panel again.
6. Once the Alarm light comes on, let go of the button.
This will perform a factory reset on the printer.
I hope that's everything you want.
Please accept this answer if this will help you.
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Thanks, Joe
I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309
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I was given this printer but have no instruction book. Brother HL 1440 Laser
Therefore I have no means of researching the problem.
Problem: In the middle of printing, the Alarm light and Data light began flashing red in sink with the flashing green Ready light. As the printing was getting very light I installed a new Toner cartridge according to directions. Computer is registering that it can print, but it is not. My computer is a Mac OS X.
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