dirty background and over toning

[aaahmmm]

Dear Sir ,

I have dirty background and over toning as in the attached image , the machine is mp 7500 , the parts are 250K , please advice .

[seansbar]

Re: dirty background and over toning

Looks like developer is worn. Good luck, that drum looks very worn for 250K, and it is not a Ricoh drum. Generic toner will cause that also.

[apump]

Re: dirty background and over toning

may need to check that the clutch isn't staying on and filling up dev ass'y. seen this before.. clutch comes as a ass'y

[teebee1234]

Re: dirty background and over toning

I'm going out on a limb here - non-OEM toner, correct?

[sandmanmac]

Re: dirty background and over toning

I'm going out on a limb here - non-OEM toner, correct?

I'm with the others..Looks like generic 'everything' causing your problems
Looks like those 'initial cost savings' are coming back to bite you, as they always do.

[Herostrat]

Re: dirty background and over toning

Check out SC log if there is any SC300 or SC 352 or so...bias related codes,if so change charge corona wire and grid,I'm guessing that those two aren't on 250k.
That pile under the drum looks awfully grey to me...I'm thinking that charge corona owercharged drum and he took out developer out of dev. assembly.
And take a look at that toner,even if it's for use things like this shuldn't happen unless perhaps wrong toner type was used.

[slimslob]

Re: dirty background and over toning

The main thing that I am noticing is the very definite excessive wear near the front end of the drum. What are the total copies on the machine. Normal drum yield for this model is 1,200K. This drum appears to be well beyond that. I would say replace the drum, cleaning blade (always a must when replacing the drum), the cleaning brush, and the filters on both the development unit and the drum unit. You may also need to rebuild the charge corona and replace the toner separation case on top of the development unit. If the machine has become overtoner, replace the developer. Open the front and turn the machine on. Leave the door open until after you have entered SP mode. Run 2801 to initiate new developer. Check that all charge corona and developer bias voltages are at default values and run SP 2962.

[collme]

Re: dirty background and over toning

The main thing that I am noticing is the very definite excessive wear near the front end of the drum. What are the total copies on the machine. Normal drum yield for this model is 1,200K. This drum appears to be well beyond that. I would say replace the drum, cleaning blade (always a must when replacing the drum), the cleaning brush, and the filters on both the development unit and the drum unit. You may also need to rebuild the charge corona and replace the toner separation case on top of the development unit. If the machine has become overtoner, replace the developer. Open the front and turn the machine on. Leave the door open until after you have entered SP mode. Run 2801 to initiate new developer. Check that all charge corona and developer bias voltages are at default values and run SP 2962.

all this x2 and Make sure you use OEM drum and toner or problem will reoccur

[Bantams]

Re: dirty background and over toning

It will never work with cheap parts in it ask a ricoh Tech about Faulty parts from Japan :P

Put genuine opc and dev in it and it will be ok and ditch the crappy toner

[collme]

Re: dirty background and over toning

It will never work with cheap parts in it ask a ricoh Tech about Faulty parts from Japan :P

Put genuine opc and dev in it and it will be ok and ditch the crappy toner

what faulty parts lol

[Bantams]

Re: dirty background and over toning

Bicu boards and controllers having duff chips in em

[collme]

Re: dirty background and over toning

Bicu boards and controllers having duff chips in em

thought it was ipu and control boards if we are on about the orval range lol. That was not Ricohs fault, just got a crap set of chips

[Bantams]

Re: dirty background and over toning

nah im speaking about the dead ootb 305s we got one the other week sc202 or some shit

Oh and the mysterious 305 fault where the yellow goes tits up on a copy for no reason and sicon and recon the the laser fixes it!

[collme]

Re: dirty background and over toning

nah im speaking about the dead ootb 305s we got one the other week sc202 or some shit

Oh and the mysterious 305 fault where the yellow goes tits up on a copy for no reason and sicon and recon the the laser fixes it!

you will go and buy 305s. no sympathy lol