MP3351 paper folding ADF

[Bix]

Hi, I state that I don't know Ricoh well. I mainly manage Konica Minolta printers. In an MP3351 I have a problematic ADF. When I pass the paper, the paper comes out with the upper right corner folded. By holding down the ADF, this problem does not happen. I have already tried to change with an ADF of another printer but the problem continues to arise. Sometimes it happens even without front and back.

I also tried to tighten the four small glass screws without success. I still don't understand where the paper hangs.
Let me know if you have any advice.
Thank you

[8T2]

Re: MP3351 paper folding ADF

It's the tension on the hinge causing problems. I usually remove one of the screws with it's spring on the left hand hinge near the slit glass

Sent from my WAS-LX1 using Tapatalk

[+ve charge]

Re: MP3351 paper folding ADF

Hi... My thought is that maybe if you have changed the ARDF and the problem still persists maybe you should check the slit glass 'cover' for any protrusions or unevenness. Does this happen for both portrait and landscape 'document' feed?
I would also try an ARDF free run. Hope this helps. Stay Safe!!

[Bix]

Re: MP3351 paper folding ADF

hello, thank you very much. In recent printers, there is a screw that regulates the pressure. Unfortunately, it is not present in this.
Is the waist you remove located in the metal hinge or is it one of the four screws on the window?

[FrohnB]

Re: MP3351 paper folding ADF

Grab a hold of the underside (left side) of the scanner assembly, and pull it up. Might have to push down on the internal output tray at the same time to get enough leverage.
People lean on that corner and bend the scanner downward slightly. You say it helps if you push the ADF down, so this is why i say to pull the scanner assembly UP.

[8T2]

Re: MP3351 paper folding ADF

I remove the spring (number 13). Not sure why the manual is only showing 1 screw and spring because there were always 2 screws and springs on the ones I opened, not sure if it was on the older models.

But because you say it doesn't happen when you press the ADF down this would be the first thing I try. If it doesn't work just replace the spring again and look for other causes

Sent from my WAS-LX1 using Tapatalk

[Bix]

[8T2]

Re: MP3351 paper folding ADF

Out of a job at the moment so no access to my-ricoh website to get service manual so I'll try explain as best I can using parts manual drawing lol

You only need to remove cover (17). Open the ADF feed cover and remove screw (101). Then unclip the 5 or 6 clips underneath (you can see one of them under screw 101 in drawing). It's a bit tricky the first time but with ADF lifted up you can see the clip locations marked with arrows on the cover. Cover comes off easiest with the blue original feed tray (8) lifted up.

Sent from my WAS-LX1 using Tapatalk

[zoor]

Re: MP3351 paper folding ADF

Hi, I state that I don't know Ricoh well. I mainly manage Konica Minolta printers. In an MP3351 I have a problematic ADF. When I pass the paper, the paper comes out with the upper right corner folded. By holding down the ADF, this problem does not happen. I have already tried to change with an ADF of another printer but the problem continues to arise. Sometimes it happens even without front and back.

I also tried to tighten the four small glass screws without success. I still don't understand where the paper hangs.
Let me know if you have any advice.
Thank you

Check if chassis sector indicated in the photo is not cracked.
The ADF rises at the rear left for this reason. It is practically imperceptible. The problem would be in the copier, not in the ADF
You will need an arc welder to repair it.

[Mark Bbb]

Re: MP3351 paper folding ADF

I replace the left hinge, solved.