How do I reset the Unit Life after replacing black imaging unit?

Imaging units have a limited life span and sounds like yours is getting to the end of it. Sooner or later the printer will stop and demand image unit replacement.

replace the chip

replace the black image unit

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Remove the transfer belt unit and change the chip fuse on transfer unit.The fuse is or a little green pieces or glass fuses ,the value 0,065mA/250V rapid fuse.After change the fuse pull on the unit and turn ON the copier.Before change the fuse reset the transfer belt counter in the Present parts life mode.

Change the chip or enter in service mode and change the imaging unit life duration to long life.The copier displayed continuosly Please change the image unit,press OK and ignore.

Imaging unit reset automaticaly if a new is in copier.If you enter in the service mode you have a posibility to change the image unit life duration standard to long life.

u cant reset those , u have to change the counter chips .These are available in market

once the machine locks you out for a imaeg unit you are done until the unit is replaced or reset chip is installed but there is new firmware that can be installed in the machine that wil not stop the machine from usage was the image unit has reached end of life so the next time a service tech comes out tell them you want the new firmwareand set image unit life to suspend

In Service Mode -> Counter -> Life -> Select the one you want to reset and press 'C'

On the end of the image unit you will find a white bit of plastic with a small screw in the middle, make sure this screw is tight and then reinstall the units(give the units a bit of a shake too)