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How can i get from strike lines in paper by vertical

Drum unit when uses many month's it's begin to worn out and nick when drum rolling begin pcr (primary charge roller) to adheres on paper clean pcr and line will cleared but return again!!!! change drum and blade

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I have an HP3500 which I've had from new since 2004. On the whole it's been remarkably reliable but recently I have problems with a multicoloured stripe which appears down the lefthand side. It doesn't matter what type of document I'm printing - result is the same. I replaced the fuser about 12 months ago which seemed to solve the problem but gradually it came back after a few months. If I print several copies the stripe disappears and basically the more printing I do the better it gets. I'm using mostly remanufactured cartidges now but the problems started before I switched. I don't notice any difference in quality with non HP cartridges. Currently I have a mix of HP and non HP cartridges installed.


Hi Richard,
Dots, Lines and smudges on the printouts are usually due to deteriorating cartridges and cleaning the green drum of the cartridge may help temporarily. Take out the cartridge and inspect them. You may observe the lines on the green drum. Gently clean the roller/ green drum with a dry, soft, lint-free cloth wiping off the toner dots marks/ lines. (corresponding to the location where you are having a green line on the paper)
Also, make sure that the visible inside of the printer are clean and there is no spilled toner inside, which sometimes results in dots.
Moreover, streaks (thicker lines) and dots etc indicate faulty PCR Roller which is located behind the green drum inside the cartridge. Observing the PCR with the help of a sharp torch light would let you assess the condition of the PCRs at the corresponding location where lines are appearing. Replace the Cartridges one by one and inspect the prints for the changes. I think you would be able to identify the faulty cartridge/ rollers. Also, if the waste toner area is filled and/or the plastic wiper/ cleaning blade removes the leftover toner/ waste from the drum and holds the waste is worn out, it results in spilled toner usually at edges and at early stages lines only.
Moreover, the function of the fuser is to fuse the toner onto the paper and it is usually done at the end of the printing process just before the paper is ejected (and the image/ toner on the paper is just fused - not changed). The fault at the fuser area usually results in smudges, ghosted image or unbind toner (which easily gets erased when touched). The time during the printing cycle when the toner is spread on the paper, additional toner (resulting in lines) is shifted to the paper due to cartridge related issues, which results in lines. Note that after cleaning the rollers, the print quality improves and the lines disappear or lighten. Try and check if the above suggestions work.

Hope it helps! Good Luck! Thanks for using Fixya!
CreativeTECH

Jul 16, 2011 | Office Equipment & Supplies

1 Answer

sc 220 and sc 305


sc220 means laser synchronizing detector board, (used to determine the start timing of laser writing), does not send asignal while the polygon motor operates normally and the LD
mirror in laser may be stink clean it carfully and clean small board synchro which detect invisible laser beam

sc 305 means pcr primary charge roller did'nt work correctly that means did't give sufficient charge to drum unit possible causes pcr defective

Feb 08, 2011 | Ricoh Aficio 1224C Black and White Copier

1 Answer

Just replace the drum on my MFC8890dw and I am getting black marks down the left side of the paper that resemble the gear. I have cleaned everything I know to clean. What now?


Did you changed only the drum or the drum unit.This problem ound like damaged PCR(primary charge roller wich is above the drum) or damaged fuser teflon(One of the rollers in the fuser asemblly)Check the both things for defects.Please reaplay wath you have found.Thanky you for using fixya!!!!

Nov 13, 2010 | Brother MFC-8440 All-In-One Laser Printer

2 Answers

HP 2840 Ghost printing in the bkg?


That is called ghosting. This is typically caused by a worn or fatigued component inside the imaging drum unit called the primary charge roller (PCR). It is a small black rubber roller. If you are careful and confident you can clean this yourself, otherwise the drum unit needs replacing.

Please read in full before attempting.

!Do not touch the imaging components with your hands or allow any foreign matter (i.e. grease) to touch them either!

To clean the PCR you have you remove it from the drum. It is held in place above the actual imaging drum, just above the drum shutter. On either side you will see two screws down in the cartridge that need to be removed. Once they are out you simply retract the imaging drum shutter and remove the plastic bar above the drum. The PCR is attached to this plastic bar. I would recommend cleaning the PCR in place so as to not disrupt the conductive lubricate that should be in place. Use a lightly dampened, with ONLY steam distilled water, lint free cloth and gently wipe and grime off. Repeat with a clean section of cloth until the PCR is an even dark color. COMPLETELY DRY BEFORE RE-INSTALLATION. Installation is the opposite of removal, a magnetic tipped screwdriver will help. Good luck and email with any questions.

Oct 02, 2009 | HP LaserJet 2840 Printer

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