CopyCentre C20 Toner Low Stays On

The document feed rollers may be dirty/worn which is causing the paper to come into the scan area late causing your document cut offs. use a clean, lint-free cloth dampened (not moist) with water and clean the document feed rollers. Confirm they are dry then, try scanning multiple pages and see if they pull through without stalling. If they do, it's time to replace those rollers.

Use OEM. Xerox cartridges only if you want reliable clear prints.
I have tried many different generics. I wouldnt recommend using anything but the OEM cartridge. They just perform better.

It is the same.

Most likely, you need a new toner cartridge, part number 106R01047

Press,,,,, Menu #1934 . What you may want to try first is to do what is called the Shading adjustment. That calibrates the scanner.
It would be found in the maintenance menu after you enter diagnostics.
You must place 5 pieces of white paper on the glass before you perform the adjustment.
There really is no way to increase the amount of toner concentration on that machine. You may very well have a defective ink cartridge. That is not uncommon on the C20. There is a metering blade in the toner cartridge that often times does not allow enough ink to be applied to the toner roller.

You have a dirty laser, I will tell you how to clean it when I am awake.

Yeah the c20 is not sturdy at all. But that aside. Some things to do.
1, Unplug the machine, remove the back cover and on the right side you will see the main board.On the top portion of the board you will see a white ribbon cable. Unplug it and look at the silver contacts on the very end of that cable. Then reseat that cable. That may be the problem. More than likely though you have either a dirty mirror in the scanner. Which would require removing and cleaning the scanner thoroughly.
The laser may also need cleaning. The toner cartridges for that machine leave a lot to be desired also. When you get a bad copy remove the toner, shake it from side to side and see if that fixes the problem temporarily. The blades that put the proper amount of ink on the toner roll fail often.
The scanner failing would be my first thought.
Also go to Xerox.com, select support and drivers, then enter C20 in the search box. Then go to drivers and downloads and install the newest firmware for the machine. You may have a machine software issue.
I have worked on that machine since day one of its existence, I never did care for it. It is a cheap machine made by Sharp corporation for Xerox. It really isn't a Xerox product, they just stuck their sticker on it.

Have you simply tried shaking it front to back vigorously? If you have and I am assuming you did that. take it out, and on the top of the cartridge you will see a clear round window. Take either some black tape, or a small piece of paper and tape over it and see what happens. How that machine determines if there is or is not ink in the cartridge is by a sensor that looks throught that window for toner.
If you block it and it still says out of toner, then your sensor is bad.

The metering blades in those cartridges go bad and do not allow the ink to get to the page. Look at the front of the toner cartridge, is should be a solid consistent black all the way across, if its streaky, not consistent all the way across replace the toner.
The other problem could be a dirty laser. If replacing the toner doesnt work let me know, I will tell you how to remove and clean the laser.

u can find manual for this copier at the link below:
www.lostmydrivers.com