Copystar Kyocera FS-1135 MFP waste toner full

empty drum unit its full of waste toner each side of drum unit has plastic covers that pop off empty out the unit thoroughly and vacuum inside

try emptying the waste toner from drum unit

If you can receive but not send, maybe the number you are sending to should include some pauses, especially at the end of the number. If you have a good dial-tone when you do "On-Hook" then there is nothing preventing you from sending on the machine end. Has the phone system just gone digital? You may need a filter to translate pulses properly. Can you call your cell-phone using On-Hook dialing? I would say there's nothing wrong with the machine. But you'll get blamed for the communication problem in any case. Try manually dialing using On-Hook dialing (turn your Monitor sound up high) and listen for some kind of message. It's a number or line problem. Did they just start requiring an 8 or 9 to be prefix-dialed to get "out?" Or stop requiring it? Maybe there is a prefix number programmed through the default menus that you don't need anymore.

in the drum unit assy. replace drum unit.

It's one unit with the drum

open rear cover and check the fuser to see if there is wear on the heat roller, if there is a line worn in the roller and it makes a grinding noise,
it will need the fuser replaced, also it may need a firmware update.

The waste toner container is located inside the drum unit.This code means the drum unit is full. To empty there are two caps that can be opened and the waste toner can be emptied. Usually the waste gets full when the unit is very close to be replaced. You may be able to get some more time if you empty it, but you will probably need to replace the unit soon.

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.

use a new genuine kyocera toner. refurbs, refills, and reset chips will cause damage after awhile. OEM supplies are expensive but worth it in the long run.

yyou have to be careful when doing this.
the waste toner is built in to the process unit (drum unit) and has a plug on the side.
remove the plug and tip it out.