How do I reset a drum life on a d-350? - Brother HL-2040 Laser Printer

Do you have an actual error or is the drum stating end of life?
If you have real error, error code will be needed.
If your drum is stating end of life, then check ebay for reset chips. These chips will reset your life counter.
But at some point , the drum will fail. Also no not shine strong light on drum and do not work on drum in front of sunny window, sunlight will kill drum.

Bizhub 20 drum reset Please reset the drum counter only when you replace the drum unit. If you reset the drum counter during the life of the drum unit currently being used, the remaining drum life will not be displayed accurately. Make sure that the machine is turned on. Press Clear or Clear/Back on the control panel

Press bediener - details - stop 00 - stop 01 - enter 00000000 then touch end. Go to Counter- Counter Reset (higlight the six box) - function - f8 - press the start key (wait) go back to counter - pm - highlight ic life or pc life - press cancel button.
Hope it can help you.

Welcome to Fixya

Sounds like you nee to replace the developer. Try to reset the printer first. Enter the service menu by pressing utility > original size> stop>0>0>stop>0>1 the password is 00000000, in the service menu select tech mode, go to counter and clear the life of the developer and drums and then run F8 from functions.

Thank you for using Fixya!

If you need further help, reach me via phone at https://www.6ya.com/expert/elixirjose_00375ea24bd8141b

First did you follow instructions of reseting machine , if not here is the istructions, with machine in ready state, press go button and up arrow at same time, the reset parts life comes up, use up arrow or down arrow to scroll thru to drum replacement, press the ok button when you get to drum, the machine will have drum unit ok?, press okay, machine will cycle and reset drum.
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1. When you replace the drum unit with a new one, or just want to extend the life of your existing drum unit, you need to reset the drum counter by completing the following steps:
   
   
2. Press the + or - button to choose "Machine Info".
3. Press OK to proceed to the next menu level, and then press the + or - button to choose
   "Reset Parts Life".
4. Press OK, and then press the + button to choose "Drum Unit".
5. Press OK two times.
6. --------------------- This should help.Thanks.Helpmech.

This is a service technician performed function. The PC Drum unit is changed by removing the whole imaging unit and then removing the drum section and changing it out. At the same time the developer needs to be cleaned from the developing unit and replaced with fresh developer. The drum counter is then reset using the service mode and then the new developer must be calibrated using the F8 mode. So in this machine's case, this is just not a pull out the old unit and plug in a new one.
If you find the "right" service guy, he can come in and reset the drum counter and do the f8 without changing either the drum or the developer. This can sometimes get twice the life out of the unit. Copy quality can degrade a bit towards the end of the second cycle.
If you just reset it your looking at around $100. If you do everything that is called for then the cost is more like $350.
Good Luck and Thank You for using Fixya.
WheatlandServices

Unfortunately The minds at Konica Minolta have figured out how to make the machine Inoperable if you reset the drum and or developer counters, the only way to reset the "change drum" condition on a Biz 350 is to replace the drum AND the developer and calibrate them both when you do it automatically resets the counters... sorry.

press the 3 and 9 button at the same time in ready mode.

then the reset menu will appear, press the up or down arrow until you get to drum.

press ok,
and select 1 to reset or 2 to exit.
it will return the ready state and your done.

Two Options:
1) Reset the PC/life; I/C Life and DV counter and run F8.
2) The same than before but change the PC drum.

by : George Rivas ( OSI )

The back right of the drum has a small 20mm F80mA fuse that you need to replace to reset the drum counter.
(fuse blows to reset the drum life setting)