Canon MF4370dn says "set paper

Without removing the cover itself you really cannot be sure it is totally clear

The percentage-of-available-toner is based on calculations made by the printer's internal software -- quite different from putting a measuring-stick into an above-ground oil-tank to determine the ACTUAL level.

So, while the calculations say "zero percent left", there still is some toner inside the toner-cartridge, and so it still prints.

Buy a replacement cartridge. When you finally do run-out of toner, install the new cartridge.

Compare it to buying a new quart of milk, and then using the last 1/8 of the quart of the milk currently inside your refrigerator -- use the "old" milk until it is 100% gone, and then switch to the "new" milk.

after having opened the top and pulled it out. I recommend examining whether there is any evidence of loose toner in the machine at this point.Push the toner cartridge in to make sure it is properly seated.Then close the toner cover.Then close the scanner.

let me know whether this helps the problem any, or changes the machine's status.In Case You Still face Problem and Need Online Assistance Then Please Follow Us For On : Canon Printer Support

TAke out the cartridge and unplug it and plug it back in and put the cartridge back in and see if thats the problem for you.

Hi.
Power off CANON ir5020 then try to pull-out cartridge toner. check up paper feeder for paper garbage
cleaning using vacuum to get dust and small paper dirt.insert toner cartridge fix and power on again.
if same problem error display.your canon mainboard need repair.
Hope can help you.

set us letter per difault, the default machines is a4. you can change this setting on your web explorer...

This error means that the paper is not loaded properly, or the toner cartridge is not set. You need to load paper correctly. For details, see Load Paper on your manual. Set the toner cartridge in the machine. For details, see Install Toner Cartridge of your manual as well. Hope this helps.

Hi
Error 6A00
The 6A00 is a Canon generic code for paper path jam.
Solution 1:
Move the printhead carriage back and forth a few times.
Solution 2:
Check the purge unit: Moving the print head assembly will not clear a purge unit if its jammed with paper, paper clips, push pins, screws, cookie crisp, flower bud pods or the like.

Solution 3:
Press the ink pads down in the purge unit.

All I ask is please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
All The Best: Pineworks

This kind of error indicates that your toner is not properly set or there is some paper jam. so please follow the instruction and open the panel and remove the toner and check for any kind of paper piece and than refit toner properly and close the panel and than check you will definatly able to resolve the problem ok

The problem is with the paper tray not the toner, believe it or not. Take all of the paper out of the tray and then reinsert the paper into the tray. It should then work fine.