[Misc] Gestetner DSM735(Aficio 3035) - Developer Developed problem..... :(

[chrisban35]

Gestetner DSM 735 (Aficio 3035) Developer Replacement Worse Than Before!
Ok, TOTALLY frustrated here. I changed out the developer on 2 machines in a new account that the previous techs were terrible in maintaining machine. Dev unit looks fine, drums fine, copies were OK, but you could tell the developer was weak. somehow, after performing the developer change in "exact" steps listed in service manual, I now have a totally gray back ground. I have gone back and did skyshots with toner removed to try and get all the volts accurate (which I told was 4 volts) and this doesn't seem to work either. secondly, after skyshots and performing SP2-801 I don't seem to keep the same 'calibrated" voltage readings once Ii run 50 or so copies. The really weird part is that this is happening on 2 machines at the same time. I've also been using OEM developer and checking that the dates were fresh. Is there a way to "manually" set the volts on the bias? Secondly, I went a step further and re-did the calibration SP 2-801 and followed it up with SP 2-805. Still same results. I could use some "in-depth" explanation as to what is going wrong here.

My readings are all lower reading ie 2.3vol and .78 vols etc.

My concern is the machines were printing fine prior to me changing the developer, there was just a noticeable weakness and their service records had shown it was way past due for them to be changed.

Thanks in advance for you help.

[TonerMunkeh]

What was the developer part number you put in?

[mikadonovan]

What was the developer part number you put in?

That was the first thing that popped into my mind, too.

[chrisban35]

It was Ricoh Developer Type 26 B0799640 - this was what they gave me as acceptable developer in a 3035.

[mikadonovan]

That's the correct developer. Sounds like you may have a charge roller problem.

[chrisban35]

One unit is a brand new developing unit, and the other one has an older dev unit. But they both have exact same problem. which to me points to something other than mechanical just for the sheer fact that it's happening in two separate machines and the same time.

What is the shelf life on developer? and is there a vulnerability to temperatures or rapid temperature changes that makes the developer weak to changing conditions. I bought this from a reputable supplier, but he could have potentially been sold some bad stuff.

Just curious what i should look for in determining the quality of the OEM developer when it comes in. Secondly, this is the third bag i have used to try and correct the problem and same results with 3 different batch numbers.

I've never had such a crazy time in doing something as simple as changing out developer... lol

[Eric1968]

SP2-2801 should only be done when you replaced the developer. It is not recommended to run this SP more than once.

[chrisban35]

But after you run an initial SP 2-801 and you have a gray background, you are stuck with only two options. Either trash the developer and start again, way too expensive, or attempt to eliminate as much toner from the developer as possible and try running it again. From what i have gathered from the Service technicians at Ricoh and also other tech friends, is to simply "sky-shot' copies to pull as much toner out as possible. I'm told this is an OK procedure if you may have gotten a bad result during your initial setup.

Although I would be lying if I said I understand exactly what takes place during the SP 2-801 procedure, I can't imagine it's any harsher than a standard charge applied during a copy run??

But if it is, what alternative does someone have? What does a technician do if faced with the problem I have?

Thanks for everyone's input, I sincerely appreciate the time you give to help me resolve this....

[rthonpm]

Are all of your grounding pins on the developer unit? There's the removable one that can easily get bent or left off the unit.

[chrisban35]

Thank you rthonpm for your response, yes, that was one of my likely suspects as well. I had "hoped" that it was a grounding pin or that hopefully the connection was just bad. but after thoroughly checking, they were all correct and properly making contact.

I think the thing that totally blows my mind about this deal is that it's happening on two machines at the same time. Which would usually pull out the typical "mechanical" issues associated with a singular device. I'm just trying to understand if maybe there was something that the previous technicians had "set"as far as a setting, or adjustment to maybe get more life out of the weakening old developer or drum unit, that I may be missing. Just seems to uncanny that both machines would present these bizarre yet complicated problems.

Thanks again for your input.

[Joel]

or maybe just a shot the toner supply was low or don't supply much... or the mylars or paddles of the toner supply was not in good shape?

[mikadonovan]

WTF Dude. Call your local service tech. You have messed up your machine trying to fix it yourself. By the way, it's a development unit, not a developing unit as you called it in your previous post. Just tells me you may be in over your head. Sorry don't really mean to be a dick. Had a long day.

But after you run an initial SP 2-801 and you have a gray background, you are stuck with only two options. Either trash the developer and start again, way too expensive, or attempt to eliminate as much toner from the developer as possible and try running it again. From what i have gathered from the Service technicians at Ricoh and also other tech friends, is to simply "sky-shot' copies to pull as much toner out as possible. I'm told this is an OK procedure if you may have gotten a bad result during your initial setup.

Although I would be lying if I said I understand exactly what takes place during the SP 2-801 procedure, I can't imagine it's any harsher than a standard charge applied during a copy run??

But if it is, what alternative does someone have? What does a technician do if faced with the problem I have?

Thanks for everyone's input, I sincerely appreciate the time you give to help me resolve this....

[totoro]

Do you happen to know the life of the drums on these two machines? I have changed developer on machines with old drums and have had this issue. Even though the drums looked ok, I could not get rid of the background until I replaced the drum. If you have a new drum throw it in and see if it helps, if not take it back out.