Copy issue with a line from top to bottom

All web based documents, especially bank statements, require a COLOUR cartridge, so if your cartridge is empty, it will print blank pages. Although the font may look black... it is normally NOT. Altentaively you may also need to instruct your printer to print "background images".

the blcak line that runs from top to bottom is due to a dirty misaligned print head...do a full printer maintenance on your printer/scanner . Once the heads and rollers get clean and the printer is aligned, it should get rid of any black streaks or lines. I own a Brother Printer/scanner and it did the same thing to me, as soon as I ran maintenance on it..it fixed the black straks and lines I had on my prints.

First try to copy and if copy works fine, means the hardware is fine and issue with the driver.
Do right-click on printer icon and select delete.
Once deleted, run the installation disc and click on add a device, follow onscreen instructions to complete the installation. Open printers and faxes window and then do right click on printer icon and select properties, click on print test page.
Check if it prints fine, if yes try to print from other application. I hope it will work.

if it is copied on long or legal size of paper are the fine lines on top to bottom or left to right? if it id from top to bottom check for the charge roller, clean an dry it with a cloth, wet with alcohol or water. if from left to right on a legal size of paper check for any vibration coming from the developing unit, like loose gears.

Clean the glass AGAIN. I had this issue for weeks. Drove me NUTTTTS! Because I to cleaned the glass. But guess what... not well enough. On your glass there is a tiny .. maybe the tiniest of tiny.....speck somewhere. that causes this line. Trust me I did everything you did and I just knew it was the drum or something. But it wasn't. Sure fire test. Have someone fax you something directly to the machine. (you need something that doesn't pass over the glass) If it prints out fine .. no line... there is a speck on your glass!!! And anything copied, faxed or scanned from your unit will have that line. Ofcourse you have already done half the test yourself if you print something from your computer and dont see the line. Because a print would not pass over the glass either.

Check the wondow where the paper passes to be scanned. You will probably find some debris or white out stuck on the glass. That is usually the cause of vertical lines on sent faxes.

I assume you had the issue before you changed the toner, If so the problem is either the fuser or the Laser.
Do this:
start a print job and after you hear the paper feed into the machine open the top cover to stop the machine. You want to stop the page before it gets to the fuser. May take a couple tries.
remove the toner cart.
the page should be under the cart with the image on it.
If the line is on the page the problem is image development(toner or laser).
If no lines the problem is likely the fusing assm.

this should solve your issue with detailed explanation!
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01129408&cc=us&lc=en&dlc=en&product=3301296#

Does the line appear while copying or printing ?

To isolate the issue try to print a self test page :

1. Press and hold the Cancel button and then press the Start Copy Color button.

2. Release both buttons. The self-test page prints.

If you see lines on the test page then the issue is with the cartridge or cartridge contacts. Clean the cartridge and cartridge contacts inside the printer.

rRemove both the cartridges. Using a clean, dry lint-free cloth (a coffee filter works well), wipe the cartridge contacts, from the top to the bottom. The contact area of the cartridge should be rubbed briskly to remove the waxy lubricant material from the gold contacts.
The contacts inside the printer may also require cleaning. Using a clean, dry, lint-free cloth. Gently wipe the contacts, from the top to the bottom.
Reinsert the cartridge and print. If the issue issue persists replace cartridge(s).



If you do not see lines on the test page. Place the same test page on the scanner glass and make a color copy. If the lines are on the copied Image the issue is with the scanner glass.
clean the scanner glass :

Clean the glass and scanner backing

1. Turn off the all-in-one.
2. Unplug the power cord from the wall outlet.
3. Unplug the power cord from the back of the all-in-one.
4. Raise the lid.
5. Clean the glass with a soft dry cloth, or a sponge slightly moistened with non-abrasive glass cleaner or water. CAUTION: Do not use abrasives, acetone, benzene, or carbon tetrachloride on the glass; they can damage it. Do not place or spray liquid directly on the glass; the liquid might seep under the glass and damage the device.
6. Dry the glass with a chamois, cellulose sponge or soft cotton cloth to prevent spotting.
7. Clean the white scanner backing with a soft dry cloth or sponge slightly moistened with water, and allow it to dry.

Try a blank copy

1. Plug the power cord back into the wall outlet.
2. Plug the power cord into the all-in-one.
3. Turn the power on.
4. Close the lid; do not place any paper on the glass.
5. Load paper in the paper tray.
6. Do either of the following:
   • Press Start Copy Black to start a black-and-white copy job.
   • Press Start Copy Color to start a color copy job.
7. If the output is a full/half-black page, or has vertical black lines, the product needs service or contact HP for in warranty replacement.

Thank you .
Silan

Toner issue getting to drum - use gen toner cart.

or Drum blade stuffed (lines are down page fro top to bottom- replace drum assy

Drum has been exposed to light faint or blank across copies repeated 4 times down page - replace drum assy

or upper fuser roller stuffed, down page, smudgy print -  replace fuser

LSU(laser) or boards rarely cause issues