20 Most Recent Kyocera FS-4000DN Laser Printer - Page 6 Questions & Answers

Suggestions at the link below: Thread Kyocera FS 1035 error C7990

make sure your cassette paper guides are snug to paper or push the system/counter button look under common settings and change the size to letter

Mrs lina p try to use WD40 I think it will help you

try updating print driver

I don't think you are looking at coverage I think you are looking at toner levels

its a fold down tray on side or in front of machine depends on your model

this c 6000 mean abnormal temperature

get it service by the technician the cost is tax deductible and will be fixed

What model of kyocera

depending where you are in the world it might be call service in the user book the trouble shooting section just about every fault shown says call service hand book ..68 pages trouble shooting starts at 47 http://www.kyoceradocumentsolutions.com.sg/dl/wp-content/uploads/2014/11/FS-2000D_BOG_ENG_1.3.pdf

You may have gotten an incorrect message and removing and replacing the drum is a step in right direction. But if you continue to get the same message I am afraid you will have to replace the drum - they do wear out.

cleaning with cloth and brasso

Can be many things usually it drum decay and the drum unit or the charger unit maybe needing replaced

assuming the toner coverage per print isnt excessive , the problem could be any of the following, toner - have you used 3rd party toner ( compatibles, remanufactured) - if yes - you could have put the developer toner ratio out of spec- fix by replacing developer tank AND toner. if no - is there any blockage in the toner transfer pipe between toner cartridge and developer tank/ is the pipe split leaking toner if all looks ok , test the toner pump using the service commands., if toner is moving ok the problem must lie in the dev tank - the fix is still to replace the dev tank - good news is its plug and play comes with instructions on fitting and setting up .

Kyocera compatible does not mean Kyocera genuine. Not using genuine toner can invalidate your warranty. If that doesn't bother you then the printer detecting a non-genuine cartridge is not an issue.

laser unit