HP Hewlett Packard LaserJet 3000dn Printer "2840 drum unit" Questions

...2840 each cartridge/drum contains a chip that measuresthe life of the unit.You can purchase toner/chip combinations online cheaper than new cartridges. I also purchase drum chips to extend the use of ...

...drum? The 2840 is a slightly different sort of machine when it comes to supplies. There is a main imaging drum unit which works for all four colors, and then there of course are the 4 colors. If the ...

...drum unit from hp 2840 laser printer Push the scanner release button(top front right side) That opens the scanner assembly.(it lifts up) Grab the drum handle and rotate the drum so that the handle is ...

drum unit or after fuser unit, you can stop printing when the paper goes around between the drum unit and fuser unit, 2) clean or change fuser leaner if the random smear occur after the fuser unit(not

...run a toner unit beyond its working life preset- parts have worn developer has worn down drum surface will be scarred drum blade will be blunt-etc etc etc..... replace with NEW and have 100% life ...

...drum and the cartridge and even tried cleaning mode. Please help!!! I have a HP Laser Jet 2840 All in One Every print job, copy, and fax have the solid black line across the pages. I have changed the ...

...drum for HP Colour Laser jet 2840 but it is still saying we need to replace it? How do we get round this problem or what are we doing wrong? Hi Katherine, This has to do with a chip on the Imaging ...

2840- vertical black streaks on paper edges when copying using black only- copies fine in color The Drum unit is worn or defective. try another drum unit. this should take care of your problem.If it's

...drum or a remanufactured unit? It is possible that the chip on the unit that is supposed to reset the drum was defective. If you purchased an original HP drum, contact HP and ask them to replace it, ...

...2840 asked for drum replacment afther only 5300 pages but should make 20000. Prits where still perfect but now it refuses to print. Any solutions how to keep using the drum? Check online for refill ...