Drum light blinking - Brother HL-2040 Laser Printer

Reseat the toner cartridge. Turn the printer off, and then back on again. You may want to try a new cartridge, but if that does not eliminate the error, call your HP support line. If the imaging-drum light is still blinking but the Attention light is not on, you must replace the imaging drum before the printer can continue printing. The imaging-drum light might be blinking by itself or at the same time another light is on or blinking. If another light is also on or blinking, turn the imaging-drum light off in the simulator and turn the other light on or blinking to isolate the condition. The printer has determined that it cannot read or write to the e-label on the imaging drum.Reseat the imaging drum, and then power cycle the printer. If this does not work, replace the imaging drum. If the imaging drum light is still blinking but the Attention light is not on, turn the printer off, and then back on. If the problem persists, replace the imaging drum E-label reader. The imaging-drum light might be blinking by itself or at the same time another light is on or blinking. If another light is also on or blinking, turn the imaging-drum light off in the simulator and turn the other light on or blinking to isolate the condition.

If Hope that this helps,, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response. Thanks,Joe

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

HI drum is reach for end of life thats why drum light is blinking you shuld have to replace the drum or just reset the drum counter to run your machine for another life .
thanks

Friend,this code refers to switches cover:
can cover the trash (disposal box) that has two switches, magazine master.Tente verify that the drum is in position for opening.

1. The Drum LED blinks if the drum unit is near the end of its life. Use the drum unit until
you have a print quality problem, then replace the drum unit with a new one.
2. The Drum LED continues to blink if the drum counter was not reset when you replaced
the drum.
To reset the drum follow the instructions below:
a. Open the front cover of the printer.
b. Press and hold down the white button for about 4 seconds until all the LEDs light up. Once all 4 LEDs are lit, release the
button.
c. Close

The blinking indicates that the drum unit is near the end of it's life. It will shut down soon and you will lose the ability to print until it is changed or reset.
To reset the drum counter. Press and hold down the white button (shown as blue in the image below) for about 4 seconds until all the LEDs light up. Once all 4 LEDs are lit, release the button.

The drum light is on due to a preset counter to notify you that the drum has reached the end of Normal Usage life expectancy. It doesn't mean that it has failed, yet...but soon. I would suggest having a new drum on hand for when print quality starts failing. Either new drum units have a reset fuse in them to clear the warning light, or there is a reset proceedure to use after installing the new drum unit.

Blinking says to replace drum soon, when it's on solid, it's time for a new drum...

Imaging drum is empty or missing (Error 40204) Light pattern Description The imaging drum is empty or missing. The imaging drum light is blinking, and then printer stops printing. An error 40204 is written to the event log. The printer cannot detect the imaging drum correctly. Action

1. Reinsert or replace the imaging drum.
2. If the imaging drum light is still blinking but the Attention light is not on, turn the printer off, and then back on.
3. Repeat Steps 1 and 2 with a new imaging drum.
4. If the problem continues, contact HP Customer Care at http://www.hp.com/support/clj2550 or see the flyer that came in the printer box for other contact information.

Imaging drum e-label reader is faulty (Error 10004) Light pattern Description The imaging drum light is blinking, and then printer stops printing. An error 10004 is written to the event log. The imaging drum e-label reader is faulty and the printer cannot detect the imaging drum correctly. Action

1. Reinsert or replace the imaging drum.
2. If the imaging drum light is still blinking but the Attention light is not on, turn the printer off, and then back on.
3. Repeat Steps 1 and 2 with a new imaging drum.
4. If the problem continues, contact HP Customer Care at http://www.hp.com/support/clj2550 or see the flyer that came in the printer box for other contact information.

It sounds to me that your maint counter needs to be reset. 24-7 will reset drum. Let me know if you need help getting into the simulation.

You have to reset the drum counter. Leave the front cover open Press and hold the "cancel" button until all the lights flash in sequence Close the front cover You should be good fro another 30 - 40 thousand copies. Hope it helps Ed