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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.
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.
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.
When was the last time the the drum and 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.
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.
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 at the rear of the drum and below. (Remove drum to see, has a white cover on it attached to a control board, needs cleaning,2nd replace. 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.
After you replace developer, press #, interrupt, c , interrupt keys in that order. Display will go off, press 42 print 01 print for developer reset. Press Interrupt key twice and press 20 print 01 print for serviceman reset. Press CA key .
You need to reinstall the software of the phone as its corrupted ,get it done if the phone is still under warranty or else get it done in a local mobile repair center ,do it on your own is risky in the process you may damage the phone permanently ............................
Hi, it means the developer requires changing. it has a life of 30k (i think). I would suggest that if your quality is not effected, then keep using the machine, or spend the money on an engineer to come out and replace it.
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