C654E Cyan devloper suck

[swaggen]

I have 3 c654. We run them pretty hard. With no problems. Recently we have been printing lots of postcards/double sided with large pictures on them. The Cyan IU are failing at half life. They are maintained and all sensors cleaned. I do manual toner add as much as I can. I still feel like the toner hoppers are running a low. Gradients being done every day. What else could be causing the developer suck? Can I make any adjustments for increasing toner add? Firmware has been updated. I am at a loss and about to spend 50k on 3 C7000. Help

[allan]

Does the machine code out?
If it is the case that it cant get enough toner on time the TCR level will fall below 4% and an error will be given.

[swaggen]

Does the machine code out?
If it is the case that it cant get enough toner on time the TCR level will fall below 4% and an error will be given.

Nope No error. Just a crap copy, lines. Add developer and good for a bit, but happens again.

[allan]

Are you resetting the image units?
Make sure all the image process adjustments are on default.
What is the TCR value under <state confirmation> <level history1>

[copyman]

When you say "add developer" , I'm assuming you are talking about aftermarket developer because I'm not aware of any dev from Kon/Min for that model? Are you using genuine K/M toner? If you are using aftermarket of either toner or dev that is your problem. I have never had good results with aftermarket, especially developer.
I'm assuming you are a print shop, if so that is more reason to use genuine supplies to maintain consistent print quality to sell to customers. "pay more now, or a lot more later"
I have print shops with that same machine. They run big jobs on them, mostly 12x18 thick stock. They use genuine IU's and toners. They chip/reset IU's at least once. Not sure how much more you would expect from these consumables? I have one C654 (reg paper) with 1.5 mil clicks and have the same color IU's, fuser etc. Have only changed black drum a few times.

[allan]

Was assuming u got the developer from old tanks?

[swaggen]

Was assuming u got the developer from old tanks?

Yes, using developer from old units. They are sucking developer at half life and then going south. I see the issue more of a toner lack?, Hopper units seem close to empty. There are older IU in the machine lasting double the life. We are not setting them just running them.

Its the large pictures on the prints that is causing this. Do not have a problem when we ran normal text.

[swaggen]

Are you resetting the image units?
Make sure all the image process adjustments are on default.
What is the TCR value under <state confirmation> <level history1>

From what I understand they dont need a chip rest? You can continue to run them.

I will assure default and discover the TCR value today

[swaggen]

Are you resetting the image units?
Make sure all the image process adjustments are on default.
What is the TCR value under <state confirmation> <level history1>

Well TCR values are all at 0, Im assuming because of the graduation and cleaning I was doing yesterday. I printed 40 copies with lots of color. All values now at 6-7

I will run them the majority of the day tommorrow and re test

Because one side the postcard is multiple large and random pictures.... will developer wear out sooner? causing the Electrical charge on the imager to increase and release developer? Just as occurs when in at end of life cycle when the developer is shot?

[Synthohol]

OEM toner has developer in it so it does not run out.
i only see issues like this online from:
leaking white bushing(s) rarely
non OEM supplies frequently
running a drum over 175-200%
bad front side board.

mainly dirt-in-a-bottle aftermarket toner.

good luck.