[Jamming] ARM317 Phantom jamming

[Akitu]

I'm relatively new to Sharp, and as a copy tech altogether, so forgive me if this is something blatantly obvious but I'm having phantom jamming in all 3 paper trays on an ARM317, the paper doesn't even make it to the reg. roller.

A bit of history: this machine had MASSIVE DV dumping going on to the point where it got under the covers and into the back of the machine.

I'll be heading to the site there to try to clean out the clutches and see if that fixes it as it seems to be the cause of the problem. I've changed the pickup and feed rollers in all 3 trays as they were pretty dead anyways.

I know on the larger Sharp machines that it's possible to activate the clutch and the feed motor at the same time, but I'm quite positive it's not possible on a standalone machine such as this.

Any input is always appreciated, thanks.

[OMD-227]

Whats the jam code?????

You're on the right track with the dev dumping possibly getting into the clutches, but also check that the desk unit is seated correctly as the drive coupling between the desk & engine sometimes tilts slightly, causing excessive load on the drive motor. Check that you have the newly modified version of the drive plate... it has a small black dot on it. The drive plate is the gear section which couples with the engine.

Also, check that the wiring harness is not damaged (pic attached). Check that the 24V line (red) is not rubbing against the chassis which eventually breaks through and shorts out. If it has obvious wear, its common for the fuse chip shown on the MCU board to blow, which will also cause jamming similar to what you mention. You can tie the harness out of the way as a precaution anyway.

Otherwise, your on the right track with dev in clutches I'd say.

ARM317.JPG

[Akitu]

Thanks for the reply Wazza, but Lawrence actually helped me out, there was still small amounts of DV that were dumping onto the rollers while it was pushing the paper out into the reg rollers, so I disassembled it once again and vacuumed it out top to bottom after figuring out it wasn't a sensor issue.

Problem was on Friday when I was there the first time that there was a fax stuck in memory trying to print out so I couldn't get into the sim codes, after rebooting a few times I was finally able to clear it and get into there.

Ruled out sensor issues and finally determined the DV was still being picked up and getting to the rollers, I ran copies on it until it jammed and cleaned it repeatedly until I was able to run 100 copies out of each tray successfully without any further jamming incidents. I did originally start with lower numbers but it was being a pain and still jamming but running progressively more copies each time I cleaned it.

While the DV did get into the back, it actually missed the clutches entirely and they seem to have gotten off without incident. I'll be keeping an eye on it though, as I had gotten some advice to remove the DV seal above the roller because they curl in on themselves and dev rides up and causes all that spilling.

Glad to finally get that little conundrum out of my way.

[Akitu]

I spoke too soon. They ran fine all afternoon and just called me back shortly after this post. Same problem. Gonna check what you suggested Wazza.

Also, jam code is PPD1_N.

[Akitu]

Figured I would update, since I keep seeing so many unresolved threads.

Had DF3036 over here to help us out for a week back around then, we tore that thing apart to the very core and found huge masses of developer that had dumped into the frame, so we disassembled it, cleaned it out and checked the clutches too, they were relatively fine for the most part. Little bit of elbow grease and a lot of vacuuming and we were finally able to get that thing working.

Haven't heard back from that customer since then, all things are running smoothly.

[blackcat4866]

It's a big job, but there is just no easy way to get all that developer out of the vertical path without total disassembly. I've seen this before and agree that you're on the right track. =^..^=

[Akitu]

Well the kicker was I was trying to do it on my own as the other tech here was away on another call out of town, and I had never encountered this before so I was unaware it was a disassembly job.

Now I know for next time. Since then I've had a rather interesting encounter with an ARM 350... Oh the joys of learning!