GR3750 Paper Jam Check Feed Area

[PrtScr]

Hello,

I've got a Riso GR3750 machine and am currently trying to pinpoint the possible causes of a problem.

When printing, the paper often gets stuck producing the error message PAPER JAM CHECK FEED AREA. When I check inside, it is either sat just before the drum, halfway into the machine, or there is no paper in there with the last print off having a printed image that has slipped off the bottom of the page.

After doing some reading I am thinking it may be to do with the feed bed or the feed rollers. I read somewhere that the rubber parts are often what take alot of the wear and given the the copy count is just over 2,000,000 and the master count is 6,000, this is the best guess I can come up with as a Riso layman.

So my main question is whether my assumption is correct and what other possible causes there could be.

I hope you can help.

Many Thanks,

Nick

[jermyth]

Re: GR3750 Paper Jam Check Feed Area

Possible causes:
1. Feed tires need replaced
2. Feed cores need cleaned or replaced
3. Feed clutch needs replaced
4. Machine one tooth out of time
5. Guide roller load springs need replaced.

Good luck.

[PrtScr]

Re: GR3750 Paper Jam Check Feed Area

Possible causes:
1. Feed tires need replaced
2. Feed cores need cleaned or replaced
3. Feed clutch needs replaced
4. Machine one tooth out of time
5. Guide roller load springs need replaced.

Good luck.

Ah Jeremyth, you're a proper star.

Thats just what I'm after. I've just bought the Techincal Manual and that information is really going to boost my chances of fixing this myself.

Tank you vedy much.

Nick

[PrtScr]

Re: GR3750 Paper Jam Check Feed Area

Hi all,

This issue was solved through a combination of adjusting the separator pad and cleaning up the scraper and second (don't remember it's name) roller at the front of the machine. The paper now gets taken through with ease.

Thanks for the help Jermyth