Question about Riso RZ220 Duplicator

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Paper feeding problems Riso TR1510

The two large wheels pull the paper into the machine. Once the paper is halfway in it stops and the jam light comes on. It seems like a timing issue. The paper buckles a bit when entering the feed rollers.
Dan

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First try paper feed clutch.. make sure nothing is blocking paper path...

Posted on Feb 09, 2009

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Paper jams when I put it in the tray to fax (from the top tray)


your wheel on one side is impacted with small pieces of paper
this causes the paper flow to go unevenly you need to clean you wheels on both sides oil them and wipe dry with a paper towel
then do the paper feed jam clear and let a few pieces go thru to pick up any remiaining debris

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Riso's are famous for this, i will scrub the rubber timing roll with rubber rejuvenator and clean the steel roll with alcohol.The riso paper feed clutches are weak compared to what they were in this series you may have to replace the clutch. Bud, after doing some research you need to clean the oneway bearings on the pickup and feed rolls, adjust feed table hieght and lastly check/adjust timing in drive and feed roller-you will need a manual for this.


Hope this may help;


Regards,
VOTIT

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  1. check the upward sensor for adjustments and the sensor on the stripper pad unit for adjustments

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1 Answer

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I have had paper jams in five different places on this machine. It has jammed at the pickup point from the tray, in which case you have to remove the paper tray and pull the jammed paper out. It has jammed at the manual paper feed tray, in which case you just have to pull the jammed paper out of the feed rollers. It has jammed at the toner/drum, in which case you have to open the front cover and pull the toner cartridge out to remove the jam. It has jammed in the back of the machine where the paper feeds through to the output tray, in which case you have to open the small back panel and remove the paper. And it has jammed in the output rollers, in which case you have to reach inside the output tray and remove the paper. Then once the jam is cleared there are times when the machine has to be unplugged for up to 8 hours to reset before it will function properly.

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Minolta DiAlta model 151f, when i try to use the automatic paper feed on the top of the machine the paper goes in about half way then stops then a message comes caution original doc jam


Try cleaning the pickup wheels that pull the paper into the feeder. There might be an electrical sensor problem also that is not sensing the right paper size. So lets start with cleaning the feeder

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Riso GR3770 will not pull the paper through once it passes the initial feed assembly. The paper ''picks up'' just fine, but after the lead edge enters the machine, it kicks off impression and gives a...


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1 Answer

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Is this something that has been getting worse or just happen at once? If it just appeared it good be something in the paper tray stopping it from liftting or something behind the paper tray or in the paper path of the copier. If it has been slowly happen try to clean the paper pickup rollers with WD-40 and a rag and clean the rubber only. If that works you done, but if it say's to add paper you may have a broken paper present sensor. The jams could also be the paper feed clutch is worn out. Worse case use the bypass tray. Good Luck!!

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1 Answer

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Sounds like you forgot to plug the High voltage transformer or a sensor back

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