Black line coming out on prints

remove toner and drum unit
remove toner
check to see if there is toner in the drum unit if not fill unit run 5-10 prints
replace dev roller
replace drum cylinder(opc)

Needs Drum If you pull the drum unit out you will see on the drum different shades of color lighter is wear the lines come from. Buy a rebuilt drum much cheaper and they work, may have to reset the drum count if the change drum lite on...

Not an expert on this brand of printers but it looks like dirty feeder rollers to me. Try cleaning them and Print a Blank document and see if the marks show up

This type of line is cause by a scratch or smudge on the toner cartridge's image drum. You will need to replace the toner cartridge.

Run a half test.
Put paper in the manual feed tray.
Print something, anything
When the paper is 1/2 way into the printer, open the cover.
Pull out the toner cartridge. Look down at the paper.
Does it have a black line on the right side?
If yes, replace the cartridge. If no, replace the fuser.

hi i have printing problem when i was gave print after output on print right hand side in some lines in black form contiuos print on paper.

tthis is really old 25 years plus. replaced the drun cartridge which also contains the toner good luck canon sr tech

The right side of the platen has prabably come unlatched. Just push down on the right side of the platen, (black roller the opaper goes around) it should clunk down into place.

It may be the fuser. Take it out and inspect the roller on it:

1. Switch off the device, disconnect the mains plug and wait for 30 minutes before continuing.
2. Ensure that the bypass tray is closed, or you will not be able to open the front cover.
3. Open the front cover by pressing the release buttons as shown.
4. Pull the front cover down towards you.
5. Disconnect the green plug - squeeze the sides of the plug and pull.
6. Push the left and right levers outward to unlock the unit.
7. Pull the unit towards you as shown and lift it clear of the device.
8. Check the roller for wear marks, If so replace it.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe




I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

the drum life is over, change PC drum, also you may clean laser glass whats under the pc drum