[Jamming] mp4000b jamming with sc991-440-670-792

[odessa]

I have replaced the HDD, replaced the cassette rollers in all cassettes, cleaned thoroughly all transport and aligning rollers, removed the feed units and cleaned all bushings, and cleaned every sensor I could find. Have been reading thru all the posts trying to find help on this one, there are some answers pointing to NVRAM and BICU, BCU etc. Is this common on these machines to have so many issues with the NVRAM? Anyway, could use your help.

[Zaxxon]

Re: mp4000b jamming with sc991-440-670-792

I have replaced the HDD, replaced the cassette rollers in all cassettes, cleaned thoroughly all transport and aligning rollers, removed the feed units and cleaned all bushings, and cleaned every sensor I could find. Have been reading thru all the posts trying to find help on this one, there are some answers pointing to NVRAM and BICU, BCU etc. Is this common on these machines to have so many issues with the NVRAM? Anyway, could use your help.

I have never changed any defect NVRAM and only cleared one (done in panic) didn't help. NVRAM is not any common fail part in Ricoh machines.

Have you tried uploading fresh firmware?

Is the machine clean?

Kind regards
Peter

[sandmanmac]

Re: mp4000b jamming with sc991-440-670-792

I have replaced the HDD, replaced the cassette rollers in all cassettes, cleaned thoroughly all transport and aligning rollers, removed the feed units and cleaned all bushings, and cleaned every sensor I could find. Have been reading thru all the posts trying to find help on this one, there are some answers pointing to NVRAM and BICU, BCU etc. Is this common on these machines to have so many issues with the NVRAM? Anyway, could use your help.

I find it impossible to believe that all of that stuff just "happened" at once.
All those codes are generally unrelated, and none are usually related to the HDD -if they were, then simply disconnecting it would have helped, and I'm not sure why you think that replacing feed rollers, and lubing bushings will help either.
I have NEVER seen a worn-out feed roller cause an SC code

How about a little history of what actually led to this situation?
As for the SC 792, I'm betting that you simply have a bridge unit connected without a finisher, which might even explain the jamming

[JustManuals]

Re: mp4000b jamming with sc991-440-670-792

This Parts & Service Manual can now be purchased for $12.77 and downloaded immediately after payment from:

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Paul@justmanuals.com

[odessa]

Re: mp4000b jamming with sc991-440-670-792

I find it impossible to believe that all of that stuff just "happened" at once.
All those codes are generally unrelated, and none are usually related to the HDD -if they were, then simply disconnecting it would have helped, and I'm not sure why you think that replacing feed rollers, and lubing bushings will help either.
I have NEVER seen a worn-out feed roller cause an SC code

How about a little history of what actually led to this situation?
As for the SC 792, I'm betting that you simply have a bridge unit connected without a finisher, which might even explain the jamming

Sandy is a girls name

[sandmanmac]

Re: mp4000b jamming with sc991-440-670-792

Sandy is a girls name

Seriously? What are you 10 years old?
....Although that would explain why you know SWEET F**k ALL about troubleshooting!

I simply gave you my 2 cents, and asked you for more info, which is why You’ve had no luck getting any other advice.