Service manual my canon clc 1180 have eror E020 an sub eror is 00A3

Canon 1180 Copier errors

needs fuser assembly. probably bad thermistor.

You need to Reset Code From Function_Clear_Err_OK. Check Dens_K in Display_Dens if it is to less i.e. bellow -2.5 Check Whether Black toner is present in hopper or replace Black developer

toner clogging between sub hopper and developing assembly

black toner drum

your back up data is currupt, you need to change your p-sens-p value check your door spect for all default value. after that clean your sensors that is found below the black developing assy. take machine off unplug from outlet replug turn machine on DO A GRADUATION ADJUST that should solve the problem / if not unplug the the same sensors , then repeat the first prod.

ok so this is a code for the atr sensor.. you said you changed it is that the one right above the black dev that has the connector that plugs up under the control panel. if it wasnt take that one out and clean it... you can also check under serv mode copier display dens and see what iy says under window for each color they should be around 100 you may want to try to clear R-CON but then you need to put all adjs back to door specs

go into service mode function or adjust and put in all the door spects take machine off then on do a graduation adjust

Did you change the Magenta stater/ developer? A E020 code is saying that the toner desity is low. Try replasing the developer and run the ATDC for Megenta and see if that helps. You may have a problem with the developing ass'y it self. You may be able to take another colors dev. ass'y with the hopper open and see if the code goes away. The sub code 0124 means that it is the Magenta dev. ass'y