[Misc] Gestetner DSM 735 (Aficio 3035) Developer Replacement Worse Than Before!

[chrisban35]

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.

[verderacer]

Your gonna get even more frustrated cause you posted in the Toshiba area of the forum when you have a RICOH product ! LOL But you lucked out here maybe...

From your description I think you want to look at 2 things. First check the drum ground. Make sure you check from the drum and bearing to the chassis. This also can be caused by some 3rd party drums. Also the mag roller may be coated or dirty.

On those MFP's I always cleaned the mag roller really good, bright and shiny, with a green scratchy pad. The prob is after you clean it off you may not get it back to nominal v readings for the drum and dev units. I would open up and carefully clean the mag roller then try doing a 2801. Dont perform a 2805, this is only for doing a drum and dev unit at the same time usually.

I usually pull out the mag roller and remove as much of the existing developer by hand onto a 11/17 sheet of paper then pour it back into the dev unit. Once I have 99% of the existing developer off it I clean it with the scratchy pad. Then reassemble it and do the 2801.

Worse case is have another bag of developer with you if it does not normalize.

Hope this helps...

[chrisban35]

THANKS!

That's great info. and my mind is way outa the office already in the weekend, thus the posting in Toshiba.. Which was the 'other" problem I was having with a Toshiba e-Studio 650. That means God only knows where that one got posted..lol

As for the dev unit on the Ricoh, the mag roller should be shiny??? because you're right, it was still black. I simply dumped as much dev/toner mix out as possible to include rotating the drive gear many times until no more mixture came out.

So I am to assume that if someone runs the toner out, and then the developer gets consumed, and then toner is added, the toner has a tendency to stick to the Mag roller which greatly effects the proficiency of the developer?? Is that correct?

Thanks for the advice. Will try again.

Any secrets to a "better" sequence for greater success with developer units that already have toner added back in them?? For example, I was told if i simply skyshot 10 copies at a time until the machine reported out of toner, then did the SP 2-801 that this practice would be good enough for favorable results....

any other advice??

[verderacer]

As a general statement it is correct.

Skyshot technique is ok when you have a over toned condition. Once you get it back down to normal you can do a 2801 and then an 05 if needed.

When your mag roller is coated its best to just completely remove all and then clean and replace, but when you dont have the developer you can just leave as much toner and dev in the case, manually scrape off with your finger all excess on the roller over a 11x17 sheet then pour back into the dev case. Clean the mag roller over the paper so the old stuff does not contaminate whats left of your new dev in the case. Then put it back together and see if you can normalize the copy after doing a 2801.

Hope it helps !