How to adjust atdc sensor?

When was the last time the developer was replaced in the developer unit? If has been replaced, then you might have a bad ATDC (Automatic Toner Density Control) sensor Located right below the developer unit. If the developer was replaced when it was done was a vacuum cleaner used? IF so the static electricity from the vacuum clear destroyed the sensor, NEVER USE a VACUUM cleaner to remove the developer. Also when the developer was replaced, was counter cleared to tell the copier developer was replaced, the copier uses the counters to determine certain voltages for certain assemblies, if not image problems and codes can appear. Finally, was the F8 run after the developer was installed before ant prints or copies made? If not buy new developer and start over, counter is to be cleared first, then developer replaced, then F8 run.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

cof32 is telling us that ATDC sensor is reading toner supply incorrectly, now this Toner Density Control sensor sits inside the developer unit of this machine, and toner is feed into it, where the atdc sensor reads the amount of toner that it has mixed with the developer and adjust it occording to level initally set when developer was first installed.

Developer can become old and not attract the toner any more

Toner can clog up and not be able to get to it

Developer can be spilt so it is no longer at right level.

Maybe it wont stir cause of something mechanical

Sensor rarely fails

or maybe the ATDC sensor needs to reset it's level (service f8)

not sure but ...Service mode stop 00 stop 01 then select F and 8

link to new dev
http://supplydepot.com/amazing/itemdesc.asp?ic=MIN8936416&eq=&Tp

Sir.mam,
When was the last time the developer was replaced in the developer unit? If has been replaced, then you might have a bad ATDC (Automatic Toner Density Control) sensor Located right below the developer unit. If the developer was replaced when it was done was a vacuum cleaner used? IF so the static electricity from the vacuum clear destroyed the sensor, NEVER USE a VACUUM cleaner to remove the developer. Also when the developer was replaced, was counter cleared to tell the copier developer was replaced, the copier uses the counters to determine certain voltages for certain assemblies, if not image problems and codes can appear. Finally, was the F8 run after the developer was installed before ant prints or copies made? If not buy new developer and start over, counter is to be cleared first, then developer replaced, then F8 run.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

When was the last time the developer was replaced in the developer unit? If it has been replaced then you might have a bad ATDC (Automatic Toner Density Control) sensor Located right below the developer unit. If the developer was replaced when it was done was a vacuum cleaner used? IF so the static electricity from the vacuum clear destroyed the sensor, NEVER USE a VACUUM cleaner to remove the developer. Also when the developer was replaced, was counter cleared to tell the copier developer was replaced, the copier use the counters to determine certain voltages for certain assemblies, if not image problems and codes can appear. Finally was the F8 run after the developer was installed before any prints or copies made? If not buy new developer and start over, counter is to be cleared first, then developer replaced, then F8 run.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Error code c2557 means "Auto Toner Density Control sensor abnormality" (ATDC)

Hello,

C0F32 is e developer problem,Imaging Unit ATDC (automatic toner density control) failure.
Try to add some toner and adjust the developer.
Enter service mode and adjust with F8

Please specify a copier model:Minolta,Ricoh,etc?
After change the developer you must performed F8 (ATDC automatic toner density control to fixed T/C ratio and initialize the new developer.After this operation perform F5 (AIDC sensor test automatic image density control).Never make a copy before F8.

toner sensor cannot b cleaned have to replace it

CF3 - ATDC sensor malfuntion. This sensor measures the density between toner and developer. You might have a problem with too short developer. Add some more and do F8.
The manual says basically that you either have a problem with de sensor (under a bottom plastic plate of the image unit) or the main board (PWB-A).

Have you replaced the opc drum lately?? The toner density is looked at on the drum with the ATDC sensor. It seems like your tring to adjust the toner density. That is just a band-aid. try to replace the developer and if needed the opc and clean the drum unit and the ATDC sensor. You shouldn't have to readjust in the service mode.