mohr@cory.Berkeley.EDU (Gordon Mohr) (11/14/90)
-- A Laserwriter IInt where I work has developed a nasty problem: not long after a new cartridge is put in, a thin strip of black appears on ALL pages printed, along the left side of the paper. Originally, I thought this to be a problem with the cartridge, but installing a new toner cartridge only eliminates the problem temporarily. The dark line originally averaged only about 1mm thick; it's grown to about 1/4 inch. Rocking the toner cartridge to redistribute the toner has no effect. Cleaning the laserwriter insides as when a new toner cartridge is put in has no effect. Internal inspection of the laserwriter reveals much powder toner collecting inside near the far end of the "corona transfer wires" section. Wiping the edges of the (glass?) roller inside the cartridge (behind the shutter) sometimes offers temporary clean printing, but I think this operation is a definite no-no from a "proper handling of the toner cartridge" standpoint. Has anyone else experienced such a problem? Any suggestions (short of lugging the thing in for official service)? Thanks in advance for any help. Gordon Mohr mohr@cory.berkeley.edu
nbalexan@rodan.acs.syr.edu (Alexander) (11/16/90)
Problem was: LaserWriter NT producing 1/4" black band along entire edge of page. I fixed this type of problem on a HP Laserjet by cleaning the TONER CARTRIDGE'S (yes the cartridge) discharge wire. It is hidden inside a long slot with a flap covering it that runs the breadth of the cartridge. There was a brush stored away inside the printer for just this purpose but its use was only really described in the cartridge's manual. The brush has a shelf and notch on it designed to prevent someone from inserting it too far into the cartridge and snapping the discharge wire. Neil