MPC 5000 - wrapping around hot roller

[scoobysteve]

Hi All,

I know its a bit late to post this problem as i believe a newer model maybe on its way, however just wondering if anyone has MPC4000 & 5000s that have paper wrap around the heat rollers in the fuser when the print consists of a leading edge of solid colour.

the scenario is that the paper source must be A4/Letter in Portrait orientation. The solid colour on the leading edge doesnt have to be running from top to bottom as long as it runs for about 1/2 the height of the page, it will wrap, even if the solid bar is only 5mm wide.

We have gotten around this by making the default tray for printing and copying as Tray 2, with paper in landscape orientation.

Ricoh HQ hasnt given any useful advice other than:

*Its only us that have this problem (which we know we arent cause other Ricoh techies we speak to tell us the same thing
*shift the print edge over more to the right - no good to us as the image is off centre and we do not like the customer abusing us for doing this.

So what are you're solutions/work arounds for this problem if you have come across it. thanks.

regards

Steve

[XXX]

Assuming that you have already replaced the oil supply roller and the cleaning roller, I would replace the pressure roller next.

[XXX]

Hi All,

I know its a bit late to post this problem as i believe a newer model maybe on its way, however just wondering if anyone has MPC4000 & 5000s that have paper wrap around the heat rollers in the fuser when the print consists of a leading edge of solid colour.

the scenario is that the paper source must be A4/Letter in Portrait orientation. The solid colour on the leading edge doesnt have to be running from top to bottom as long as it runs for about 1/2 the height of the page, it will wrap, even if the solid bar is only 5mm wide.

We have gotten around this by making the default tray for printing and copying as Tray 2, with paper in landscape orientation.

Ricoh HQ hasnt given any useful advice other than:

*Its only us that have this problem (which we know we arent cause other Ricoh techies we speak to tell us the same thing
*shift the print edge over more to the right - no good to us as the image is off centre and we do not like the customer abusing us for doing this.

So what are you're solutions/work arounds for this problem if you have come across it. thanks.

regards

Steve

OK. For starters I only have two 5000's in the field and the only failure to date has been the black toner pump.

Rather than inventory individual parts to rebuild a fuser unit for 2 machines, it made more sense to stock a complete fuser unit.

The fuser unit ordered is currently on backorder.

If I were going to be troubleshooting a "fuser wrap" problem, I would look at replacing the oil supply/cleaning rollers and the pressure roller.

Those are my guesses.

PP

[scoobysteve]

hi all,

in my case anyway, just about all of our MPC5000s do it.. and when i say all, i'm thinking about 60 or so machines... even from day dot i had a client, who just bought two MPC5000s, call up saying both had jammed on the first page of print.. and it consistently jammed on this first page... switched it over to Short edge feed (ie, landscape orientated paper) and off it went... back to Long edge feed and BAM!!!... jam on the first page... so being new machines, i wouldnt think it would be bad components in the fuser unless we are just damn unlucky and managed to only get the 60 lemons out there.

[XXX]

hi all,

in my case anyway, just about all of our MPC5000s do it.. and when i say all, i'm thinking about 60 or so machines... even from day dot i had a client, who just bought two MPC5000s, call up saying both had jammed on the first page of print.. and it consistently jammed on this first page... switched it over to Short edge feed (ie, landscape orientated paper) and off it went... back to Long edge feed and BAM!!!... jam on the first page... so being new machines, i wouldnt think it would be bad components in the fuser unless we are just damn unlucky and managed to only get the 60 lemons out there.

Doesn't make much sense unless you take a trip back through time to the problems on the Aficio 551 that were extremely low volume.

The answer there was to remove the oil supply roller at the expense of a shortened hot roller life.

[AyJayAreDii]

We have a lot of these machine. I don't recall any problems that was not either the oil supply roller or an old fuser.

Have you tried setting it to a thicker paper setting. Heavy toner on standard paper can cause problems. Usually in estate agents! when the toner is applied heavy to the feed edge of 80/90gsm paper, then is pushed upwards though the machine, you end up with the feed edge buckling and the paper follows the heat rollers around. Try using 100gsm paper to make sure the paper has the strength to stay striate whist travelling.

[spaceman99]

i think your going to deep. when i get wraps then i replace the following, AA066385 SPRING LHS STRIPPER BAR, AA066386 SPRING RHS STRIPPER BAR, D0094503 , STRIPPER BAR AND MOD GUIDE PLATE D0294491. If that does not knock out it on the head then replace the maintain kit for the fuser D030KFUS.
try that
good luck

[Lotec]

We have a few of these machines around. They work fine/OK, but we've had a few problems like this.

We sold a better quality paper to the customers that prints a lot of pictures, where the fibers in the paper have more than one direction. That did the job for us. Never had any major problems ever since.

I see from the SMC reports that we have logged an average of 29 jams in fuser exit for every 150k prints, and 40 in duplex entrance on an average user. To reduse paper curl we have replaced the paper the real estate agents used with a high quality paper. Now the machine works MUCH better.

We have replaced more cheap paper from Staples at a few customers - and that have resulted in increased reliability. We expect the machines jams will decrease by 25-35% for those that use cheaper copy paper.

If you read about the new machine (Apollon 2,5 ... MPC4501/5501) that is going to replace the MPC4000, one of the areas where they have made a few changes is in the fusing unit. They have redesigned some of the pressure mechanism, the anti curl system (rollers) at the fuser exit and it can handle thicker paper too btw.

You're all using the printer fuser instead of the copier fuser right? It's cheaper to replace the fuser with a printer fuser, then replaceing the PM parts of the MPC4000 fuser. And much quicker..

[spaceman99]

i forgot to add, I also lower the temp of the fuser as this also decresses the curl.

[AyJayAreDii]

i forgot to add, I also lower the temp of the fuser as this also decresses the curl.

This is just compensating for curly paper.


@lotec

Exactly what we do! high quality paper for colour images and high toner coverage and more reliability. cheep nasty paper for black and white text with the odd jam now and then.

[jonezy999]

Assuming that you have already replaced the oil supply roller and the cleaning roller, I would replace the pressure roller next.

What machine are u thinking of? I didnt think these had oil rollers.

[Wishbone]

Common problem. There is not enough lead edge erase from the factory on these. Back lead edge erase back to 1mm and problem solved.

[Smee]

Yep....Im with Wishbone.....the lead edge margin needs to be larger. The toner on full bleed cover sticks to the rollers and wraps as there isnt any strippers, just that useless metal plate. Problem is it offsets the image on the page but there isnt any other fix.

Do a skyshot and keep changing the lead edge margin in the SP modes until it dosnt wrap in the fuser.

This is a real common problem for us....every MPC4000 / 5000 does this on full bleed colour as far as i know and this is the only fix. Proper strippers would sort it.

[AyJayAreDii]

What machine are u thinking of? I didnt think these had oil rollers.

They don't come with them but can be ordered and fitted to them. sometimes cures problem and sometimes solves them. you should see them in the part manuals or RTBs. can't remember where I see it.

[teebee1234]

They don't come with them but can be ordered and fitted to them. sometimes cures problem and sometimes solves them. you should see them in the part manuals or RTBs. can't remember where I see it.

Are you sure you're not thinking of the MP4000/5000 where there is the unauthorized mod to replace the web with an oil roller?