[Error Code] ir6880ci e020-01A8

[Guest]

the colour toner levels are fine except yellow.dens showing 7% on first visit, i cleaned the atr sensor and ran hi dens yellow copies and got the machine setup ok. when the code came back i restarted all colour devs as the yellow dev was very low even though the it was only showing 16% life. all was good for a few days now its back dev levels in units all look ok yellow dens showing 5.10% and i have cleaned salt sensor and looked at drive to toner feed all look good.

thinking of replacing atr and salt sensors anyfurther idea's

ps transfer belt new along with black dev all charge,blade and trans cleaning unit

[teckat]

*****Try this first>>
Service Mode Level 2, COPIER > OPTION > BODY > DEVL-VTH /change it from 2 to 4
then Cycle power off/on


E020-0xA8/0xA2 Error Code: Troubleshooting
01A8 is for YELLOW-
E020-0xA8 can be displayed when the T/D ratio detected as a result of ATR control exceeds its upper limit (5%) three consecutive times.
E020-0xA2 can be displayed when the Sig value detected as a result of ATR control is higher than 960. The possible cause is an oversupply of toner. Follow the steps below to determine the root cause.
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1. Have the P-PRINT on hand which had been output immediately after executing "INISET" when the developing ass'y was last replaced.
2. Without turning the power OFF, record all the readings under service mode [COPIER> Adjust> DENS].
3. Compare the readings in step 1 and step 2, and if there are discrepancies, enter the readings of the P-PRINT to service mode [COPIER> Adjust> DENS].
4. Without turning the power OFF, record all the readings under service mode [COPIER> Display> DENS> DENS-Y/M/C, REF-Y/M/C, SGNL-Y/M/C].
Note: If the power is mistakenly turned OFF/ON, all the readings will be cleared. In such a case, make a color copy of ten or more sheets in A4 size, and compare the readings once again.
5. If one or two colors are +5.0% or higher in DENS-Y/M/C, go to step 6. If all the three colors are +5.0% or higher, go to step 9.
6. If all the readings are identical in step 3, go to step 7. If not, output a test print (PG TYPE=10) of 20 sheets in A4 size and check the readings of DENS-Y/
M/C. Continue this two to three times. If the readings decrease, end this work and monitor the machine condition.
Note: If E020 occurs during outputting the test prints, turn the power OFF/ON and continue to print.
7. Visually inspect the developing cylinder surface of the affected color (whose DENS is +5.0 or higher). If the cylinder surface is exposed in pic [1], go to step 8. If it is close to the toner color in pic [2], it is possible that excessive amount of toner has been supplied.
click on all Pics to better view-
roll.JPG
In this case, check the following-
- Turn the shaft [3] of the toner feed screw by hand. Does the gear [4] rotate normally?
- Compare the shaft rotation of the affected developing unit with the normal one's. Isn't it too much light?

roll2.JPG
- Visually inspect the toner supply valve [5] and the toner ejection valve [6] for any deformation or damage.
roll3.JPG
If no mechanical difference is confirmed, toner which had been oversupplied should be consumed. Output a test print (PG TYPE=5, DENS of the affected color=255, other colors=0) of 20 sheets in A4 size. Then, check whether the reading under service mode [COPIER> Display> DENS] decreases. If it decreases, end this work and monitor the machine condition.
8. As no developer is left, DENS-Y/M/C is detected higher wrongly. Replace the affected developing unit or the developer with a new one. Then, execute "INISET" for the changed color.
9. When E020-0xA2 is displayed, check if J1135 or J119 on the DC Controller PCB has poor connection. If poor connection is not confirmed, replace the DC Controller PCB with a new one.
When E020-0xA8 is displayed, it is possible that the gear [7], which drives the toner feed screw and is installed at the rear side of the host machine, is locked.
roll4.JPG
Check whether it rotates smoothly clockwise/counterclockwise. If it rotates smoothly, replace the DC Controller PCB with a new one.