unknown

asked Jul 2, 2001 at 5:28pm
Apple Apple LaserWriter 360

LW 360 post-repair problem

Hi All -

I purchased the fixyourownpinter video for an apple laserwriter select 360 that was exhibiting the "print fading" problem exactly as described. I went thru the process on the video and cleaned the mirrors and reassembled the printer. (It took quite a while, but alll went well.) Upon restarting the printer, it gave me a paper jam error.

I looked over a service manual I have for the printer, and it appeared that perhaps one of the connections on the dc board was loose, and I checked and found that it was in fact loose (the connection was the p13 on the dc controller board.)

Now I don't get the paper jam upon starting the printer, and it prints fine from the manual feed tray (fading is indeed gone,) but the printer stops with a jam error light when it feeds from the cassette. The paper gets picked up fine, but the jam light comes on just short of the paper triggering the registration sensor and the paper just sits there. There is no impediment to the paper and the paper does, in fact, feed thru when I pull it thru manually.

Can you shed any light on this problem. It must be from something that got unconnected when I took it apart, but I have doublechecked everything and can find no problem. I even checked the paper pickup and paper feed connectors (p201 and p202).

I'm at a dead end. Any suggestions?
Kathy Sipher
I think it's just coincidence that the problem started after the repair. From what you're saying, it looks like the paper isn't getting fed far enough to trigger the registration sensor causing the paper jam. Probably just worn pickup rollers.
by moe on Jul 2, 2001 at 6:00pm Add comment
Moe -
Thanks for your reply.

It's true that the paper isn't making it to the registration sensor. But It seems that there is a problem where the rollers are not "catching" the paper after it has been picked up and started on its path thru the printer. There doesn't seem to be anything wrong with the rollers, and paper feeds fine from the manual feed tray.

There had been no problem whatsoever before I repaired the printer. It seems highly coincidental if the problem started immediately following the repair.

Is there a particular cable that might have been disconnected that runs the pickup rollers? I hate to take the printer all apart again, but I just can't believe it's a coincidence.

Thanks for any further advice you might have.
Kathy
by unknown on Jul 2, 2001 at 7:24pm Add comment
If the paper is coming out of the tray, then the pickup rollers are working, maybe not good enough but working. There are some rollers just after the pickup rollers that continue the feed process. They could be a bit slick and not doing their job properly. You could try some rubber rejuvenator on them. I doubt that it's something you did during the repair. All of the tray power comes from a single connector, so it's unlikely that one roller would turn and another wouldn't.
by moe on Jul 3, 2001 at 9:03am Add comment