unknown

asked Jan 16, 2003 at 9:28pm
Apple Apple StyleWriter II

Laserwriter II infeed problem

There is an intermittent problem with my printer engine. When executing a print command (or print engine self test), the paper pick up roller picks up a sheet with no problem (this roller was replaced within the past two years with a kit purchased from this site) but the printer suddenly stops feeding the sheet well short of the fuser. The misfeed LED then starts to glow steadily. The sheet is not wrinkled and there is toner on it, but it never gets fused because the sheet never makes it to the fuser.

The fuser seems warm and the toner is properly melted when the sheet does make it all the way through the printer. Apple Printer Utility complains of an infeed error. The pick up roller is clean and functioning properly.

I suspect the paper pickup sensor (if there is one) is not functioning properly, but have no idea where this sensor is and how I might fix the problem. Can you help?
Where exactly is the leading edge of the paper when it jams?
by moe on Jan 17, 2003 at 9:54am Add comment
Ususally the leading edge of the paper is within an inch of the small diameter roller that is just upstream from the toner cartridge (sorry, I don't know the technical name of this part). The image has begun to transfer onto the page but then the printer stops feeding and I get the paper jam.
by Anonymous on Jan 17, 2003 at 10:28am Add comment
After further research, I discovered the roller referred to above is the registration roller.
by unknown on Jan 17, 2003 at 7:21pm Add comment
If it's coming out of the tray and falling short of the registration roller, it's strictly a pickup roller problem. It shouldn't have worn out in a such a short time span unless you're doing a heck of a lot of printing or using heavy stock. Try cleaning the roller with a rag and some water. It could just have a layer of dust on it.
by moe on Jan 18, 2003 at 4:33pm Add comment
The paper stopped short just AFTER the registration roller, which was not very clear from the previous note! I think the problem is solved, however. The fine wire that is wrapped around the chorona thingy (very technical term) was missing. I replaced the unit with one from another printer I had laying around (no home is complete without a basement full of computer salvage, just ask my wife)and the problem seems to be cured. Do you think this was the root of the problem?
by unknown on Jan 18, 2003 at 5:29pm Add comment
I spoke too soon - the problem re-occurred. The print jam occurs when the leading edge of the paper is just past the registration roller. Any insight?
by unknown on Jan 22, 2003 at 8:23pm Add comment
At that point, the registration assembly has full responsibility for paper movement. That would be the first thing to try. Only other thing would be the paper is hanging up on the cartridge shutter somehow.
by moe on Jan 23, 2003 at 11:00am Add comment
Should I look to replace the entire assembly or are there rollers available? What powers the registration assembly and what should I be looking for?
by unknown on Jan 23, 2003 at 1:04pm Add comment