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i hope you are not running the developer adjustments without changing the developer. the adjustment is for the precise TCR that is in a new bag(s) of developer.Originally Posted by cmitch
once toner goes into the DV unit the adjustment is worthless and can\will cause extreme toner usage.
We know a thing or two because we've seen a thing or two.
Also don't ask me for files without a contributor badge.
No. Absolutely not. I know it screws with the developer and density settings. That is one good way to ruin developer. We had an idiot service guy reset all the settings counts. Drum, fuser web, developer. Developer had 750,000 life left on it and dummy set it to zero. They had to prematurely replace it. Idiot took out about $1000 worth of parts resetting the web counter because the end of the web got caught in the machine taking out fuser rolls, drum, cleaning blade, etc. we were finding pieces of web all in that machine. It was going out of service so he didn’t want any lights coming on to replace parts under service. I’d still like to punch him in the face.
If you're at 950K on that developer, and you have doubts about it's quality, I think I'd change that developer now. Think of it this way ... you're changing the developer 5% early or you got 95% of yield.
Different toner batches can definitely affect toner density and image quality. Yes, it's common for the developer to tend to overtone or undertone as it reaches yield.
I wouldn't sweat the 5% early. Change that developer. =^..^=
If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=
I’ve used 4 bottles of toner in less than 100,000 11x17 copies. No coverage. Just type. I have a much bigger issue than developer. It makes a lot of sense it is a toner issue because this is a different batch. Developer comes out Monday. I won’t be there the rest of the week. When I left for the day, developer was on 993,000. Copies look great. I replaced entire developer unit last time because magnetic pick up roll was weak.
It will confirm your suspicion about the toner if you change the developer, then the image degrades in about 25K prints. The good news is that just changing back to the better toner will bring back the quality (when the developer is new).
If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=
I don't have any of these so can only offer insight based on casual conversations with other techs.
Wasn't there a whole thing about 1) Having to replace the developer and completely flush out the hopper/Dev every time you make a switch from non-H to H or H to non-H
and 2) Need to enable a toner saving mode to use H toner?
Havn't heard any techs here mention IQ issues or lack of volume as long as those are followed, users just needed to make sure to use all of their stock of one before switching back since the Dev and hopper needs to be flushed for the change
Update 1: Developer is now expired. Last bottle of toner in. This is a different brand. Generic. It has already outlasted any of the last 3. I have one bottle of pre fire OEM coming Monday and when I change developer, I'll put it in. No question the 3 bottles I had are garbage toner. The quality of the copy went up tremendously even though developer is expired. I seen a slight tint on the last 1000 copies at operator side of sheet. No question developer is done. I have 3 more bottles of OEM that is definitely post fire coming in from ARC services. Crossing fingers.
Developer on this line typically needs replaced between 750k and 1 Mil. If you have excessively dusty paper (or dust the collectors removed) you may see a lot less. Also, if the developing unit has 5 million or more clicks on it you may want to consider replacing it. I once tried using some generic toner to save a few bucks (yeah I know) for one of my direct mail customers (4 x 1051's) and within a week there was toner everywhere!! What a debacle that was.
I'm not sure the original question was answered, but I'm throwing my 2 cents in. Absolutely, when developer gets old, and it has agitated through the unit for many thousands of pages, the magnetic beads of the developer get beat down, become smaller, and typically, the developer becomes more porous. Therefore, the machine has to saturate the developer with more toner to keep the density levels up, and satisfy the toner/developer ratio setting. Over the decades, seemingly on every machine, I typically see higher toner usage (more saturation) on developers that are old.
Plus, as someone else said, if you're getting 95% of the yield out of the DV, you've got your money's worth and I would change it, just on principle, at that point.
Hope this helps.
OC
Developer replaced, new bottle of genuine toner installed. Developer adjustment done for new developer and counter reset. Been running saddle sticth books all morning. All seems to be well. When I get back from vacation, I have to replace upper fuser roll. When lower one went, it took the upper with it but couldn't get one until about two weeks ago. Already had to replace lamps due to broken wire on one.
I replaced developer unit on last developer change so we have 4 million to go on it.
On to toner consumption. I blame it all on the toner. Bottles were literally only half full. No way that was going to get us 50,000+11 x 17 copies. Plus, quality of toner was pretty much suspect. With toner shortages, I felt I've had no choice but to dabble in generics or not print at all. The first 3 bottles of generic toner was fantastic. This was a different company and it was bad. Tried ordering from the original company but they were out. I'm running our Ricoh 7100SX a lot for B&W because I can get comfortable trims out of paper since it has a maximum sheet size of 13 x 19.2 (also 13 x 47 banner). Good for 6 x 9 books with bleeds.
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