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Re: Empty toner after replacement

Cheryl,

This is clearly a major problem among many, many C7000 units.  What is Xerox doing to fix this?  I spent a lot of money last March on this unit, used it minimally, and now am stuck with the very same issue all others are having.  Please advise as I need to get some printing done ASAP.  I can't afford to keep buying toner which doesn't even work.

Brian

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Re: Empty toner after replacement

It's been a few weeks and I'm still waiting for the tech to come back and try again. He did fix the magenta clog but the black is still bad.

you should try the customer suport group. They cant seem to do much to motivate the tech to return but they did send me a full set of color carts and 2 black carts so I wouldnt have to pay for any more "tests"....

I did watch him from m y desk as he dug out the clogged toner with a screwdriver. and got a really good view of the mechanism. 

It's a really poor design A half inch opening in the toner cart feeds an auger drive that drops the toner into a gravity feed funnel with a 1/4 opening on the bottom! Once it backs up in the funnel the auger packs it in tight. Then it jams the auger and strips the drive gears....

He suggested it might be an envirommental issue with high humidity but I have a temp/humidity logger  in that room 6 feet from the printer that shows it's not only in the acceptable range according to the manual but its in the optimal operating range at 70F and 30% humidity....

Then he suggested it might be a poor quality non genuine toner but it was still on the "starter carts" it came with when it first clogged... 

Its been 2 months since my first call and I've only had one tech visit and no usable prints beyond the 1000 it had on the clock before the problem started......

It is very fustrating.

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Re: Empty toner after replacement

Fast forward to March 2020 ... my HP I bought to limp along would not successfully print crack and peel labels, so I figured, "what he heck" and turned on the Versalink that said "empty black toner" when it wasn't ... couldn't beleive it, it's a miracle, it told me to change out the black, which I did (so maybe there is some truth about the chip as previously stated (but not really), it actually printed out the job of crack and peel (about 15 pages by-pass). The machine still sounded ugly, like the teeth were not meshing, So I was like, "hey, I better not waste this opportuity." I started a job (8, 54 page duplex from the tray) ... got through 4 sets -- then I needed to change the Cyan cartride. I did. Job restarted and continued ... then the old "out of black toner" popped up; and both black toner cartridges (that I know have toner in them) would not work ... it printed 6 out of the 8 manuals then went back to lieing to me about the black toner . . . I will someday buy a service manual and figure it out or, I'll just throw it in the dumpster like the Xeox rep. told me to do ... so, let it set for 4 months and keep your fingers crossed ...

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Re: Empty toner after replacement - Possible Solution!

I wanted to reply to this thread to let you all know that when this problem occurs, the printer does not zero out toner cartridges when it displays the empty warning! I just had it happen again with Magenta, a color my printer seems to really hate! I went through four different carts, one empty, two high capacity full/half-full (respectively), and one standard capacity (full) and it said empty on all of them.

Finally, out of desperation, I pulled out the standard cart that was in the Magenta slot, the last cart I put in. I took one of the full high capacity toners that already showed as empty at least twice if not three times at this point. Powered off the printer using the rear power button. While it was powered off, I spun the little white plastic wheel on the side of the toner in the correct/spinnable direction about three rotations. Shook the toner, put it back in and powered up the printer using the rear power button. After a little noisy hemming and hewing, the noise stopped, the printer booted up and showed 100% in the high capacity Magenta slot.

The moral of the story is that it does not zero out the carts (not sure about the first one when the problem starts, but certainly not any subsequent carts that are inserted). It is just a measure of twiddling with the carts and spinning the wheel on the side to finally get it to work. Of course if you have a toner jam, you'll have to clear it out before you can hope to get it to work. BTW, this happened to me on a pretty humid day, if it is of any consequence, so it may be worthwhile to try again on a dry day if you can't fix the problem.

I believe you need at least two carts and to alternate between them, or it will forever show empty, but this is only speculation. The important part is that it does not appear to zero out the carts, as some people suspected, which would be disastrous for new carts.

I think the fix for this is to spin that wheel in its intended direction a good five revolutions, at least, and things start to work again (unless yours is clogged of course, then nothing you do with the carts will fix it).

I believe that the grinding sound that you hear is due to either wear on whatever spins the carts or an underpowered motor. Spinning the cart manually probably reduces the friction in the mechanism of the cart enough for the printer to finally be able to latch on and spin it further, clearing the empty error state (finally!).

This problem is probably exacerbated by humidity within the carts, because the toner may become more congealed and make that wheel more difficult to spin. Shaking the toner also helps to make it more uniform within the cart and may help loosen it up.

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Re: Empty toner after replacement - Possible Solution!

Thank you for the information. Agree 100% on the humidity issue ... I let my printer sit for almost 6 months as I bought a replacment (HP) and didn't have time to be a printer technician ... I started it just for the heck of it and it worked?!?!?!? ... for about 250 pages, then went back to the same old empty toner drill ... I'll try the "spin wheel" fix ... thanks for sharing! Best regards!!!

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