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in most case this kind of issues arise if your drum is not cleaned properly with the wiper. As the printer becomes old, the wiper that cleans the drum might get reduced in size...
so it has to be checked at the first.
Once you have the new drum unit, and are ready to install, just open the front door. Slide out the toner cartridge/drum unit combination assembly. Press the release tabs on either side of the toner cartridge and lift it up and out of the drum unit. Set it aside. Unpack the new drum unit and go over the installation instructions if you have them. Basically you are just removing all of the packing materials for the drum unit. Once that is done you need to install the old toner cartridge into the new drum unit. It just slides in and locks down. Then install the whole assembly back into the printer.
Leave the front door open, and press the Options key on the control panel. The display will show "REPLACE DRUM - 1.YES 2.NO". Press 1 to reset the drum count. Close the front cover.
This should complete the installation process. Just run a test copy to verify all is well.
Good Luck and Thank You for using Fixya.
You may have a bad toner cartridge, if the cartridge has contaminants in it, it will not put toner on the drum in these areas, Try removing and giving the cartridge a good shake, try installing a new or at least another cartridge to see if the problem is here.
The most likely problem is not with the drum unit but rather with the developer unit and there is a leakage current within the unit causing the 'ghosting' on the printed images.
I would suggest that you replace the developer unit within the system. It is quite possible that the waste toner blade is contaminated with debris from using non-OEM toner within the unit. Therefore leaving residual toner particles on the surface of the drum.
Try this solution and see if that corrects your problem. This solution can be applied to virtually any laser printer, copier or MFP device in the industry. The problem is nearly 99% of the time related to CHEAP toner cartridges that are refilled or refurbished and the company doing the work does NOT replace the cleaning blades within the units, and they use a generic polyester-resin toner that does not conform to manufacturer standards.
I worked as a Design Engineer for Kyocera-Mita America for nearly 6 years and have seen this problem many times in the industry. The price you save on using recycled cartridges ends up costing you more when you have to replace a developer or drum unit.
J2 is the indication that the Drum Cartridge life has elapsed. The possibly exists that the Customer has installed a New Drum Cartridge. The Customer would be directed to change their Drum Cartridge by their User Guide. This action on the part of the Customer will cause the Drum Reset Switch to actuate for a moment when the Side Door is closed. This is with the provision that the Drum Reset Circuit is working properly. That momentary actuation of the Drum Reset Switch, being actuated by the New Drum, resets the Drum Counter. Should something be faulty with either the reset mechanism on the New Drum Cartridge, or the Drum Cartridge reset Switch circuit, the Counter will not reset. Note: A new Drum Cartridge will NOT reset the Drum Counter unless the machine is holding a J2presenton the display. The first revolution of the Drum will render the Drum Cartridge used.A Used Drum Cartridge will NOT be capable of resetting a J2. Again, one revolution of a new Drum Cartridge will render it to be a used Drum .
Two things - Fuser or cartridge - stop print halfway in machine, if fault occurs before paper has gone threw the fuser then it is a faulty cartridge, if print is ok before fuser (the hot bit at rear) but gets doubled up after fuser then the hear roller in fuser are faulty change fuser....but 95 % of the time it is due to dodgy refill cartridge or worn cartridge (the rubber blade inside cartridge fails to apply enough pressure against drum to clean away old image hence duplicating itself onto your nice clean paper! Try a known good cartridge if in doubt..
It sounds like excess toner has built up in or around the imaging drum. I would *carefully* remove the toner and drum (can be messy) and use some canned air to clean the inside out. If you are still getting these streaks, it might be time to get a new drum (DR 400) as you are supposed to replace the drum every 6 to 8 times you change the toner cartridge.