Ricoh mp6503, copies with dark background

[tecnicot]

Hi, I need help. On this MP6503 machine he began to make copies with a very dark background and the images he photocopies are gray.
I did the complete PM (developer, drum, blades, filters...).
And after 2000 copies it does the same again. I changed the toner for another one that was also original (in case it was that toner that was corrupted) I made 4000 copies to see if it improved, and it did not improve.
I have changed the developer again and after 2000 copies it does the same effect again with background and grayish images.
Do you have any idea what could be happening to him?

Thanks.

[slimslob]

Re: Ricoh mp6503, copies with dark background

Does this only happen when copying or does it do it with print jobs as well and thing like the Counter sheet and SP print outs? If only copying, you have a problem with the optics.

[KeviM]

Re: Ricoh mp6503, copies with dark background

If you could scan some samples of copies and internal prints (like counter pages) that would be great.

I'm assuming you used all original spares?

Also,.... I'm going to assume that the first 1000 to 2000 prints are fine
Can you post your voltage readings before and after?

Also just for testing purposes, can you try a different brand of toner. Maybe katun?

[sandmanmac]

Re: Ricoh mp6503, copies with dark background

If you could scan some samples of copies and internal prints (like counter pages) that would be great.

I'm assuming you used all original spares?

Also,.... I'm going to assume that the first 1000 to 2000 prints are fine
Can you post your voltage readings before and after?

Also just for testing purposes, can you try a different brand of toner. Maybe katun?

Maybe I'm wrong, but it sounds to me like he's rebuilding them, and since there is NO SUCH THING as Genuine Developer and/ or Drums sold separately, this is where the problem lies if that's what he's doing.

Waiting for clarification from the poster...........

[anothertech]

Re: Ricoh mp6503, copies with dark background

Maybe I'm wrong, but it sounds to me like he's rebuilding them, and since there is NO SUCH THING as Genuine Developer and/ or Drums sold separately, this is where the problem lies if that's what he's doing.

Waiting for clarification from the poster...........

We rebuild them with Ricoh parts. I don't understand what you are saying about not being able to get the parts.

[slimslob]

Re: Ricoh mp6503, copies with dark background

We rebuild them with Ricoh parts. I don't understand what you are saying about not being able to get the parts.

Not according to the parts catalog for the 03s.

[fbkhan3]

Re: Ricoh mp6503, copies with dark background

Hi, I need help. On this MP6503 machine he began to make copies with a very dark background and the images he photocopies are gray.
I did the complete PM (developer, drum, blades, filters...).
And after 2000 copies it does the same again. I changed the toner for another one that was also original (in case it was that toner that was corrupted) I made 4000 copies to see if it improved, and it did not improve.
I have changed the developer again and after 2000 copies it does the same effect again with background and grayish images.
Do you have any idea what could be happening to him?

Thanks.

As far as i understand its MP 6503( Black & White ).
You didn't mention changing the Charge wire and Charge grid? do you find black film on Mag roller after 2000 or 4000 copies or when it starts fading the print .
What is the total count on the machine?
is there any toner dusting inside the machine after 4000 prints?
Have you also replaced the Transfer Belt( It effects the print allot reaching the Yield).
Humidity and environment around the machine.
Installation of the developer procedure if you are doing it right matters.

Regard's

[davel]

Re: Ricoh mp6503, copies with dark background

Maybe I'm wrong, but it sounds to me like he's rebuilding them, and since there is NO SUCH THING as Genuine Developer and/ or Drums sold separately, this is where the problem lies if that's what he's doing.

Waiting for clarification from the poster...........

MP 6503 is a Martini.

[anothertech]

Re: Ricoh mp6503, copies with dark background

Not according to the parts catalog for the 03s.

MP 6503/MP 7503/MP 9003 is the newer version of the MP 6002/MP 7502/MP 9002. All parts are available.

[slimslob]

Re: Ricoh mp6503, copies with dark background

MP 6503 is a Martini.

MP 6503/MP 7503/MP 9003 is the newer version of the MP 6002/MP 7502/MP 9002. All parts are available.

Regardless, still waiting for an answer to the question as to whether it is only copying or not. Apparently he doesn't really want any help.

[sandmanmac]

Re: Ricoh mp6503, copies with dark background

We rebuild them with Ricoh parts. I don't understand what you are saying about not being able to get the parts.

MP 6503 is a Martini.

My Apologies.....You're 100% correct.
I swear that I saw a "C" in that model number before I posted

[luca72]

Re: Ricoh mp6503, copies with dark background

Hi, I need help. On this MP6503 machine he began to make copies with a very dark background and the images he photocopies are gray.
I did the complete PM (developer, drum, blades, filters...).
And after 2000 copies it does the same again. I changed the toner for another one that was also original (in case it was that toner that was corrupted) I made 4000 copies to see if it improved, and it did not improve.
I have changed the developer again and after 2000 copies it does the same effect again with background and grayish images.
Do you have any idea what could be happening to him?

Thanks.

if i understand correctly, you say that when changing the developer powder, the print are ok for 1000-2000 print?....you have do the developer initialization routine by sp?...if no, the machine back to old toner ratio concentration...anyway, check the toner supply clutch if stucked, replace the transfer belt with propely spare part (the 6503 have the belt different from martini C2!!!), clean well the drum ground assis, and try another entire corona wire unit, also from another machine.
check also the sc code stored in memory, to see eventualy shadow problem with ID, and TD sensor

check the attachment

[tonerhead]

Re: Ricoh mp6503, copies with dark background

Just a couple thoughts. Make sure you start the thing with door open after changing developer etc so it don't initialize. Then go through the dev initialization. Make sure your filters are new or clean, especially the intake filter on back. Next ideas are more expensive. The dev units get sloppy with wear after a couple million and blast out toner. Maybe that needs changing. You might also have something wrong with the ID sensor or drum charge sensor. Suggest you run pixel mode until you make a determination if either of these is bad.

[UNICORNico]

Re: Ricoh mp6503, copies with dark background

Regardless, still waiting for an answer to the question as to whether it is only copying or not. Apparently he doesn't really want any help.

I think the same comrade.


There is a lack of answer to the question and an image of the failure to prevent.
I find it too hasty that the Developer (possibly generic) has been changed 2 times... It is not so cheap as to discard so quickly without testing or adjusting the SP values.

[emiliorsg]

Re: Ricoh mp6503, copies with dark background

I had this same problem recently and it was a fault caused by the toner and that was original. It would be a defective batch I imagine . I had to empty the toner hopper and change developer and run a sp2963 to initialize the developer and fill the hopper with another original toner from a different supplier and it worked. You have to enter service mode with the door open as previously tonerhead mentioned. Then I returned the defective toner, of course.