Printing black line when coping

Check your flat bed and Document feeder scanning glass need to be clean, if any dot or dust in scanning glass of document feeder it will appear a line, check this points first
1- Check printouts from computer or FAX if it is clean problem in scanning section
2- Check using Copying a blank paper using only Flatbed if it prints without any line its problem from document feeder Scanning glass
So solution is clean the Document feeder scanning glass using wet cloth, note careful about wet cloth switch off the machine and clean it

Make sure the **** glass is clean, use a micro fiber cloth to wipe the debris/old toner or white out off the glass. restart the fax machine. If it prints this black line from a copy and it is 2" wide after you have cleaned both the glass and the white reference bar, most likley the scanner itself has failed.

www.brother.ca for further assistance.

You need to poiwer cycle after cleaning as the scanner only calibrates during power up. If all is clean, even the white bar over the small glass assembly, and you power cycle the machine and it's still there, you will need a new scan assembly.

happened to me after i fed a page with not-too-hard whiteout on it. the feeder makes the page run through a different piece of glass and i just had to clean it.

The fuser is located in the back of the printer. I think it's held in by to screws. It's about hte same size as the toner cartridge. Please visit these websites.

This is the fuser kit.
http://store.printerprinciple.com/products/rm1-3044

The service repair manual.
http://www.scribd.com/doc/15253671/HP-Laserjet-3055-Repair-Manual

Fuser Replacement is on page 170.

The small glass surface at the top of the scanner bed had some gunk on it. I scrapped it off and the line went away! Yay!

usually something on scan glass..ord lamp is bad..try coping blank paper..if line shows up...check glass clean and try again..

The problem is that that there a small piece of glass that the doc feeder use's to scan the orginal. You will have to clean the small glass it's about a half of a inch piece and is normally under the doc feeder unit. It will either be to the right side of the main copy board glass or it is under the doc feed unit where the paper goes down through the feeder. It is mostly some white out on the glass, just clean with a dam cloth with water or windex..... Good Luck

I was getting a verticle black line and I had to clean the glass, the long white bar above the glass, and the white and black rollers before my problem was solved.

Can't image it being anything but scan glass, if prints are fine, are you sure you cleaning scan glass(inside of where originals are fed)?

If so then scanner lamp faulty, but I've never come across it myself on this model.