Image problem on a MP7001

[mga]

Re: Image problem on a MP7001

Hey guys i am going yo need help on this one, the machine is a MP7001 has almost 4m copies all parts are geniune there is a strange distortion that is moving printing and copying.
Here is what i have done so far. First i cleanned the drum with a brasso since we thought it was a humidity in the drum, next we plugged the 2 extra connectors in the power supply for extra heat ( my towh has a lot of humidity) since that didnt work we checked behind the machine in the drum drive mechanism everything was fine, we changed the machine warm up at 5 minutes still nothing, then we found something at my-ricoh (that was before it went down) there was an update with a similar problem and a few changes with in the program, still nothing. So as a final we changed the drum with a new one, the problem was gone for a 10 to 15k pages and then it came back. Any help will be appreciated, thanks in advance.

Can't use brass as this is a OPC brass use is for selenium type of drum
Try new drum and brush

[luca72]

Re: Image problem on a MP7001

SP-3-990-001 (fan rotation speed). Set this service mode to 1 and the customer does not turn off the machine at night. To me it has worked. You still have to update the firmware to the last version.

thanks! ... at the time I had thought about it ... but I had not found the sp, usually, on any model, if the sp is present, I always increase the operating time of the drum exhaust fan, just to avoid these kinds of jokes, and that of the fuser, to avoid deformation of the fuser covers, and paper guide...we have had a lot of problems in the past.

[copytrust]

Re: Image problem on a MP7001

SP-3-990-001 (fan rotation speed). Set this service mode to 1 and the customer does not turn off the machine at night. To me it has worked. You still have to update the firmware to the last version.

Thank you, thats the sp i changed i but i wasnt remember it well and yes the machine has all the new software udate.

[copytrust]

Re: Image problem on a MP7001

Can't use brass as this is a OPC brass use is for selenium type of drum
Try new drum and brush

Actually you can, i am using it only if a drum has humidity problems to save it, most of the times works fine, i remember using brasso for selenium drums for cleaning purposes we had a lot of FT 6750. (what a headach those machines were.......jesus!!!)

[blackcat4866]

Re: Image problem on a MP7001

Just to clarify:

Is this darker area (compression?) crossfeed (A4) or in the feed direction (A4-R)?

If it's crossfeed (main-scan, A4) ... and I think it is ... we used to see something called "developer burn", in which the selenium drum coating was damaged by incorrect charge values or excessive internal heat, usually prematurely. In this case the band crossfeed would move around on the page. Does the anomaly stay in the same position relative to the leading edge? In that case, perhaps you have a fuser speed issue.

If it's in the feed direction (A4-R) that's an entirely different story. So which is it? =^..^=

[copytrust]

Re: Image problem on a MP7001

Just to clarify:

Is this darker area (compression?) crossfeed (A4) or in the feed direction (A4-R)?

If it's crossfeed (main-scan, A4) ... and I think it is ... we used to see something called "developer burn", in which the selenium drum coating was damaged by incorrect charge values or excessive internal heat, usually prematurely. In this case the band crossfeed would move around on the page. Does the anomaly stay in the same position relative to the leading edge? In that case, perhaps you have a fuser speed issue.

If it's in the feed direction (A4-R) that's an entirely different story. So which is it? =^..^=

It is a normal paper, i think i remember that, it was a problem because the client was making mostly duplex copies and that was causing heat inside the machine........

[blackcat4866]

Re: Image problem on a MP7001

It is a normal paper, i think i remember that, it was a problem because the client was making mostly duplex copies and that was causing heat inside the machine........

Normal? A4 or A4-R? Please be more specific. =^..^=

[mga]

Re: Image problem on a MP7001

Actually you can, i am using it only if a drum has humidity problems to save it, most of the times works fine, i remember using brasso for selenium drums for cleaning purposes we had a lot of FT 6750. (what a headach those machines were.......jesus!!!)

The ft7650 I also know Martin series replaced by martini very similar and both have OPC Drums not selenium totally different surface

[slimslob]

Re: Image problem on a MP7001

Normal? A4 or A4-R? Please be more specific. =^..^=

If it is coming out of the standard tandem tray then it has to be LEF, Long Edge Feed.

[slimslob]

Re: Image problem on a MP7001

The ft7650 I also know Martin series replaced by martini very similar and both have OPC Drums not selenium totally different surface

I seem to remember something about the cleaner for selenium drum if used on the wrong type of drum could release poisonous gas.

[copytrust]

Re: Image problem on a MP7001

Normal? A4 or A4-R? Please be more specific. =^..^=

Yes A4

[fuwei2422]

Re: Image problem on a MP7001

drum motor、fruser unit ，or devolerper unit