Image problem on a MP7001

**slimslob** · 10-01-2021

Originally Posted by copytrust

Ok so... i am going to put all the ozon filters back, i will replace the main corona unit from another machine and replace the drum and see what happens........ i will let you know

Replace with new Genuine Ricoh parts or you are just importing other potential problems.

**copytrust** · 10-01-2021

Originally Posted by slimslob

Replace with new Genuine Ricoh parts or you are just importing other potential problems.

Thank you for that, cause of my age i am tired for new calls so i mostly 90% of the time i use genuines parts

**gilbert** · 10-01-2021

Originally Posted by luca72

if the drum, you have already cleaned / replaced, and the heaters you have already connected .. try to replace the corona unit, and the ozone filters, and (clean the others too), the machine works a lot in a closed place, without windows?. ..then there are bulletins with sps to change, to improve the situation, but now I don't have them at hand...hai cambiato anche il developer?

Hai
I had the same issue on Ricoh Mp7503,First replace the Drum and cleaning blade,
secondly replaced the filter that is located between the drum unit and fuser unit.
Your problem will be resolved.
Good day

**copytrust** · 10-01-2021

Originally Posted by gilbert

Hai
I had the same issue on Ricoh Mp7503,First replace the Drum and cleaning blade,
secondly replaced the filter that is located between the drum unit and fuser unit.
Your problem will be resolved.
Good day

Thank you for your answer i will also change the toner filter as you mentioned

**emiliorsg** · 10-01-2021

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.

**mga** · 10-01-2021

Originally Posted by copytrust

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** · 10-01-2021

Originally Posted by emiliorsg

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** · 10-02-2021

Originally Posted by emiliorsg

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** · 10-02-2021

Originally Posted by mga

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** · 10-02-2021

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? =^..^=