Need to use the printer machine in black and white as missing yellow toner waiting for it but machine is blocked and need urgently to print docs. Pls help me

There are several reasons why your Konica Minolta C250i printer may be printing magenta as yellow. Here are some troubleshooting steps you can try:

1. Check the magenta toner cartridge: Make sure that the magenta toner cartridge is properly installed and has enough toner. If the toner cartridge is low or empty, replace it with a new one.
2. Clean the printer heads: Use the printer's cleaning function to clean the printer heads. This can help remove any clogs or buildup that may be preventing the magenta ink from flowing properly.
3. Check the printer settings: Check the printer settings to make sure that the correct paper type and color settings are selected. If the printer is set to print in grayscale or black and white mode, it may not use the magenta ink.
4. Perform a firmware update: Make sure that your printer has the latest firmware installed. Sometimes firmware updates can fix issues with printing quality.
5. Contact Konica Minolta support: If none of the above steps solve the issue, you may need to contact Konica Minolta support for further assistance. They may be able to diagnose the issue remotely or send a technician to your location.

I hope these steps help you resolve the issue.

The main circuit board is faulty and needs to be replaced.

Hi, when the printer finished warming up. it will prompt Toner Empty - Stop, use the arrow key changed to continue and you can start printing. remember you must always do that whenever this msg appears.

yes, on most printers. just have to set preference to black and white in printer control panel

There is an error in the control logic of the printer that you can exploit like this:

1. Start printing your document, you will receive the error message "missing toner"
2. open the front door and close it again, this will reinitialize the test cycle
3. the printer will now print one page before verifying the toner content again
4. after one page you get the"toner empty" message again. Reopen the door and close it again to print another page.

This is only an emergency workaround if you really need to print something black urgently, in the long run you still have to buy a new toner.

Pls put empty Colour toner

Try printing the demo page, there's a man on there with a black tuxedo. If you see snowflakes on the black suit, you need a new hi voltage power supply circuit board. Also most of the generic toners don't work well in this machine.

Try taking the color toner containers out of the printer and shaking them a bit. Put them back on and try again. This could confuse the sensors into believing that you still have some toner left.

Good luck

It depends... never use a Reman cart in these machines... only use sharp...especially if the machine is under warranty.

Does this happen when,
Using the Doc Feeder
When making copies from the Glass
Or when you print from a computer (assuming you print from a PC)

If you print something and this happens then it is inside the machine
Probably toner or developer dumping...

Take a few pieces of large white paper and cover the entire glass surface... make a copy is the line there? If so see the answer above... if not then close the top and make a copy with no paper on the glass... is that black line there.. If so then your top needs adjustment...

One more test
If you make a copy using the doc feeder, this black line only occurs when making copies with the doc feed, clean the **** glass, and try again...

I can't imagine where toner could possible go from one of these sort of cartridges except on to your paper, I had a customer once with the same request and I found on their letter head that they printed with it had a single band of yellow across it hence excess yellow use,,,,,, Do your print runs of anything contain dark bands/underlines? I guess check to see if white background in any prints has a blueish tinge to it, or possiblly somehow black is running out and it is printing the blacks by mixing the colours (Check black block and text to see if it is really black not heaps dark blue to ensure black toner is operating)

next I'd be questioning if cartridges where brother ones?