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https://printcopy.info > code=C2552
Code: C2552; Description: Abnormally high toner density detected cyan TCR sensor • TC ratio in the developing unit which is determined by toner replenishing ...
Abnormally high toner density detected cyan TCR sensor
• TC ratio in the developing unit which is determined by toner replenishing amount control mechanism, is a predetermined value or more for a given number of times consecutively...
1 Reinstall developing unit.
2 Reinstall toner cartridge.
3 Check the connector between developing unit-FREYB CN4, CN6, CN8, CN10 for proper connection and correct as necessary.
4 Check the connector between FREYB CN1, CN2-PRCB CN4, CN5 for proper connection and correct as necessary. 5 Change developing unit.
6 Change FREYB.
7 PRCB ICP12 conduction check.
8 Change PRCB.
Replenish toner unit is the unit that is secured with two screws and comes to the right and these are unscrewed. The presence of this unit is signaled by a sensor positioned under the top cover. Check that sensor for proper functionality in Service Mode.
Abnormally low toner density detected Magenta ATDC Sensor
T/C 0.21 % or less is detected ten consecutive times in the Developing Unit as validated through the toner replenishing amount determination control.
Check Developer unit, check toner supply ratio in the service mode, under Image Process control and make sure that Toner motor is sping and adding toner into Dev. unit. Also check and see if you have enough Developer. clean ATDC sensor and run Image Quality adjustment
If is a BW 350 go to service mode ( stop 0 0 stop 01) counter apecial part counter reset drum and dev switc off the very quiqly service mode function run f8. Did you replaced drum and developer?
tha minolta di3510 developer unit looks the same as the unit for the konica minolta bizhub 350 but the toner sensor in the minolta unit uses a different voltage range for the toner sensor and it will throw this code make sure you have the correct unit for this machine also you can try this go back into tech rep mode and change these settings: select tech rep choice mode select printer tab select atdc sensor gain set the value to about 165 then back all the way out to the ready screen and power the machine off then back on and replenish toner in the user management screen.
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