Lexmark c540n leaving yellow streak on right side of paper

SOURCE: scanning document leaves streak down right hand side

Backu

Thanks for the tip...the problem is NOT a black line but a wide yellow line on the right side of the paper. It starts out about a quarter of the page in width and diminishes in size to about a half inch in width after many repeated scans.

The glass IS clean , and even when the glass had some smudges here and there, I never had a yellow stripe problem!

Scanner bulb is bright and even the entire length of bulb (no dark areas) so I don't think it is the bulb!

Rowboat

SOURCE: I have black streaks on my copy

Before you installed the cartridge was it in the box standing on end, If so remove the cartridge from the printer and gently shake the cartrige from side to side then reinstall, the toner may be packed mostly on the one side.

SOURCE: STREAK LEFT ON RIGHTHAND SIDE OF PRINTED PAGE

Fuser sleeve is contaminated and needs replacing - cheaper to replace the printer.

SOURCE: how do i stop my printer from leaving ink streaks

This is either coming from the toner cartridge or the fuser unit. 90% of the time a print quality problem on HP laser printers is caused by the toner cartridge. Try swapping it out first. Even if you have to shake up and re-use an old toner as a test. If swapping toner cartridges does not change the problem then it is the fuser. You can verify this by printing a page and turning off the printer before the page exits the printer. By removing the page from the printer you can see if the streaks are there or not before it goes thru the fuser. If they are not then you know the streaks are being applied to the page by the fuser. The fuser is the part that gets hot and is located right where the paper exits the machine.
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Wheatland Services

SOURCE: HP LaserJet 1320 Printer Problems & Solutions

Hi there maximum time we found it is a the head problem. The print head is what the cartridges sit in inside of the printer. For resolve the problem please follow these.
Open the printer and wait for the carriage to slide over. Some how if its not come then Unplug the printer & Manually slide the carriage. Now Remove the ink cartridges from the print head & Use wet warm cotton swab or use alcohol to thoroughly clean the print head. Repeat this until there is no ink residue coming off on the cotton swab. After finished it make the head dry then fix it back. Now Try to print something now If that does not work then follow the next step.
Remove the printer data cable & restart the PC & printer. Then fit back the data cable & turn on the printer. Hope that's start working , if no luck then Uninstall the printer driver & restart the PC & Printer both again. Now install the driver of the printer and connect it with PC ,Turn on printer & go for a test print from the printer preference. Thanks & waiting for your reply.