Lines down the page

[lissinc]

I am getting a line down the left side of the page on my HP Laserjet 1536 dnf MFP.  The line appears on both faxes and printer pages.  The line is not consistant and varies from page to page.  Sometimes its very faint and other times very prominent.  I did the clean page under the service menu several times.  The line became lighter and lighter but then when I printed a page is was very prominent.  Any suggestions?

[davidzuts]

Most times the issue is with the toner cartridge or fuser. To test perform a half test. Put a sheet of paper on top of the feeder in the manual slot and perform a self test. When the back edge enters the printer, quickly open the toner door to stop the printing. Remove the toner and look at the image below. If the defect is present, the toner cartridge has an issue and if the defect is not present then the fuser teflon sleeve has a defect and the fuser needs to be replaced.

[lissinc]

It must be the fuser because I have replaced the toner cartridge.  I have been looking for a video online showing how to replace the fuser but have not been able to find one for this model.  Any suggestions? 

[davidzuts]

Not easy on this machine, but just do a google search for the service manual which will have picture desciprtions on how to change the fuser.