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Sharp MX-M3071 Document feeder grinding during feed
Sharp MX-M3071 Document feeder grinding during feed
Lack of experience on this product. I was able to identify the paper starting to feed and as it passes the feed and separation rollers it stops and grinds.
The original isn't damaged. The paper stops just before the shaft with the 5 nylon rollers.
The paper path is clear and doing the simulations for sensors and drive motors and clutches there is no noise.
When the rear panel of the document feeder is removed to see the drive components and a original is fed you can hear the grinding which is hard to pinpoint.
The gears seem to mesh OK and no foreign matter to see. Could the feed and separation rollers need a good cleaning that might cause the problem?
I don't have new ones.
Any input really appreciated.
Thanks in advance.
If you set the machine to AGING MISFEED (7-1), is there still a jam ?
This would rule out a defective sensor.
Otherwise, most of the time it is a paper clip or sticky note stuck in the paper path. Remove the cover to access the rollers, remove the rollers (clean them with Platenclene or similar), and check the paper path.
I appreciate the reply. I have done all of the items shown in the diagram but not a good cleaning of the feed and separation rollers.
Can you please explain how you set the machine to AGING MISFEED as I don't know about this.
It might be worth a try.
Thanks very much
Yep, paperclip/staple/metal on the DSPF board, you'll need to replace that PWB (and likely the CCD because of mismatch - CHECK BULLETINS). We've never had that issue get resolved by simply removing the foreign material - it shorts out the pins that turn the remaining clutches on.
Many thanks
I will follow up this morning and see what happens.
And report any results.
FYI
This is a used replacement DF that was provided to me and it could have been shaken up in transit.
The dealer I am assisting is 5000 miles away. The way it was packed was poor at best.
The original DF would not reset due to a defective component although I have no idea which one.
I am going to wrap this up one way or the other.
Already have spent over 5 hours on this.
Regards
Ed
Final visit to onsite to customer.
I cleaned the DF feed rollers and that made a big difference. (Used unit as I mentioned)
When I started to test originals using job build feature it still made some noise but after running about 250-300 sheets the noise went away.
Anyway time will tell.
Time to move on.
I appreciate the input provided.
Regards
Ed
Just to add, if you take off the rear DF cover there is a paper feed drive belt. Ensure it has enough tension and is not slipping and making the grinding sound, you may have heard, on the gears.
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