[Jamming] Help please. Aficio 270

[Davide]

Hi everybody,
Hope someone could give me a help, got little experience with ricoh and I’m in trouble…
This Aficio is used mainly as network printer , has low amount of copies, and a fairly amount of daily job.

The problem:
Lately when printing (even a single side document) from pc, the paper jam at the upper level of duplex.
The word “jam” is inappropriate , in fact the paper simply halts at the interchange unit entry.
The sheets halted 90% of times are blank.
No error codes are shown. Simply a jam status.
Printing is ok only when a single side sheet is requested from the copier device panel.

For what I can see every time the duplex tryto drive paper into interchange unit it fails, rollers keep on rotating but the paper refuses to pass. Of course no physical obstacles are present.
Looking for the latest 10 error jam codes in memory, I found:

Error125: paper does not reach the duplex exit sensor
Error123: paper does not reach the duplex entrance sensor
Checked the duplex solenoid it seems to be ok, checked the 2 solenoid of interchange unit they also seem ok.
Cleaning the parts (i.e sensors) was useless and I have no other ideas…

Someone could help me please??

[JustManuals]

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[katash]

replace the sensors at inverter area[interchange]and forget your probs

[Davide]

Ok, will try.
Honestly I supposed that sensor shouldn't be involved, sheets in fact stop (just as they found a physical obstacle) at inverter entrance.
As you know there is only one sensor in the inverter an paper simply can’t reach it…
Thanks, I’ll let you know…


I’ll take parts from a similar copier not in use now (aficio 220)
Just tobe SURE, Could you please suggest me where I can find similar Ricoh NEW parts on line?
Kat*n doesn’t seem to have it…
Thanks again.

[Jomama46]

Precision roller is always a good source. I think I would rebuild the fuser, it may be slowing down enough to delay the paper getting to the interchange.

[Davide]

Thanksfor your reply.
Fuserhas been completely cleaned and rebuild few days ago, it is perfect...

[Fearless V K]

check simple things like making sure the paper size setting thumbwheel in the paper tray is set correctly. does it jam on copies too or just prints?

[ucinn]

Tab broken off duplex entry guide thus the solenoid doesn't divert it to the duplexer?

[Davide]

Done.The 2 thumwheels are set correctly (i.e. a4)
It jams on copies but ONLY when printing both sides of paper, single side prints are ok.
If you try to print from a pc (it works basically as network printer) it drives you mad, in this case in fact it jams single and double side too…

[Davide]

Tab broken off duplex entry guide thus the solenoid doesn't divert it to the duplexer?

Duplex inverter plastics are ok. The paper goes a few inches into the inverter lower entrance then stops. I'll try to post photos or a short video.

[Jomama46]

Take off the front upper cover to observe the inverter operation, maybe a roller isnt turning

[Davide]

Sorry,forgot to mention. Done already.
I removed the entire cover of the duplex to observe if rollers were doing their job togheter with upper solenoid. Nothing wrong. I can see sheet entering the duplex, hear the click of solenoid, the rollers inverting their rotation driving the sheet towards the inverter, the sheet entering the inverter for some inches until it hangs, and rollers begin to slip on the sheet trying to push it .



ake off the front upper cover to observe as you recommend.

[mjunkaged]

Silly question: Have you tried swapping trays to see if it will feed from a different one? Or does it only have one paper tray? DOUBT THAT!! Try the bypass, etc. if you haven't already. IF no joy from ANY paper source, I agree with fuser problem, particularly the pressure roller. If only heat roller is replaced, it will work fine for one-sided, pristine paper. But NOT for 2-sided or wonky sheets. Hm?

[Davide]

Thank you for your reply.
Yes I tried swapping trays, result is the same L

One sided printing from pc ---> ok
Two sided from pc ---> No way
One sided from copier panel ---> No way
Two sided from copier panel ---> No way



Ps. Thisis the link for a short video I made.

http://img51.imageshack.us/img51/5426/69t.mp4

[mjunkaged]

A picture (or vid) is indeed worth 1000 words. I can see the lead edge of paper deformed. Does it do it if you run letter the long way? Does it do it on any size? Have you tried tightening the idle rollers (if possible)? Sounds to my ear like the top set of rollers is slipping. As in, the tension between rollers is less than it should be?