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tspafford
11-08-2004, 07:38 AM
We have a 6-year-old LJ 4000 TN. It has been printing w/o problem until now (181K pages).

Every print now, even self test, prints a background of absolutely evenly-spaced, thin vertical black lines the entire height&width of page. Also does print desired output on top of the lines.

The spacing is about 18.5 lines/inch.

Chanhes toner cartridge, cleaned corona wire - nada.

I'm thinking formatter. yes?

TIA

ptjeff1
11-08-2004, 04:32 PM
Check out the fuser to see if there is anything funky going on with the sleeve, but you are probably right, it sounds like the formatter (video lines).