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Its the failure of ATR patch or its sensor. If you have knowledge you can proceed to check the ATR sensor Shutter if opened.Check window of the patch sensor for soiled clean it with dry cloth.Check the visibility and density of the patches on the ITB if abnormal do ..COPIER -FUNCTION-PART-CKECK-SL02 to move SL02. Check the Y drum unit cross check with good Y drum unit.
If still problem persists it need the attention of trained service engineer at site.
The error code E020-0360 refers to the ATR patch failing to be created correctly on the ITB or a patch sensor error. If you are lucky, a new toner cartridge may fix your problem. There is a known issue with the original style toner addition "set-on" unit. This is a major repair, and requires a trained technician. Other possible causes include the black drum unit (toner and drums can be user replace), ITB unit and patch sensor. A laser unit has also been known to cause this problem.
E020-01A9 Error Code : iR C3100 Series Hi there I have looked it up and what it says about it I have put down for you so you can gave it a try hope it works for you. Approved Symptom E020-01A9 Error Code.
Cause For ATR control, the detected Toner/Density ratio exceeds the lower limit (3%) 3 times continuously for Yellow
Action The ATR Sensor and Patch Image Read Sensor both determine toner density. Depending on the density readings the copier will or will not add toner. Check the status of the Drum Unit under COPIER>DISPLAY>MISC>DRUM-LIFE. The Patch Image Read Sensor looks at a patch of toner that is generated on the drum for each colour and determines the amount of toner that is in the patch by the amount of reflected light. If the drum is not creating the patch correctly, the patch reading will be affected. Replace the Drum Unit if it is 80% of its rated life or higher...
E020-081... Dirty Drum patch sensor OR the drum has reached 100% of it's life. iRC3100 drums NEVER go past 100%...once they reach that magic figure in the counters then it's time for a drum replacement. If you know how to access service mode then check under: COPIER>DENS>P-SENS-P
and make sure that the figure is around the 500 mark...if it's below
say,250 then that indicates that the drum patch sensor is having
trouble reading correctly and may either need cleaning or a new drum
This is a drum process control error. There is a small patch on the drum that is read by the control sensor every time the drum rotates. go into SIM mode by pressing the following keys one after the other "P" "*" "C" "*" and then enter 44 and start then 2 and start - this will run the process control gain adjustment. You can also clear the error by running sim 14. If the error continues after both of these then it could mean a bad drum/patch or a bad/dirty sensor. They may need to be replaced. pull the drum unit out and check the condition of the drum.
the patch sensor is dirty, take out the drum unit. under the itb belt , top left you will see two semi flat blaack plastic pieces. Carefull with your hand you can cram a lint free rag up next to the black shinney belt and the sensors and wipe them off. Use a CLEAN soft cloth to clean these senors off.
When the drum is very old it can cause this error, first thing to do is to clean these senors off. 99 percent of the time that will fix ya.