MZ replace ink cartridge problem

[gillje]

Hi!

I recently had a yellow drum for my MZ 790u which began telling me to replace the ink cartridge despite having a 3/4 full tube in it. I tried changing out to a fresh tube, but the drum just dried up completely while still asking for the ink tube to be replaced. I've given the drum to a local tech who cleaned it out and also replaced the chip (?) and it's still not working! The tech said it's not worth putting any more work into it so it seems I'm going to have to find a new yellow drum...

Now today, the same thing has started happening to my Bright Red drum! It says replace ink cartridge even though I have 2 new ink tubes that came from Riso. I've been taking the tube out and pushing the plunger forward to advance the ink to the nozzle and also to push out any pockets of air but as soon as I put it back into the drum it says replace ink cartridge. I ran maybe a 1200 prints with it yesterday and having been running it everyday for the past week so it's not like it's just been sitting around...

Has anyone ever dealt with a problem like this?

[gillje]

Re: MZ replace ink cartridge problem

both drums print counts were around 20-24k if that makes any difference...

[jermyth]

Re: MZ replace ink cartridge problem

Had a batch of damaged ink tubes a few years ago, but they were black, that did the same thing. But it was not a drum issue. Sounds like you might have either drum board or rf tag reader board failure.

[gillje]

Re: MZ replace ink cartridge problem

I've solved the problem for the red drum, I think...

I looked up the specific error code - 563, which reads 'The remaining volume information in the ink tag reached the default value.' considering that the tube was atleast a little bit full and the machine was reading it as empty, I switched the chip on the tube with a chip from a non oem tube and it started working again fine!

[Iowatech]

Re: MZ replace ink cartridge problem

I've solved the problem for the red drum, I think...

I looked up the specific error code - 563, which reads 'The remaining volume information in the ink tag reached the default value.' considering that the tube was atleast a little bit full and the machine was reading it as empty, I switched the chip on the tube with a chip from a non oem tube and it started working again fine!

There's the trick, if you have ink tubes with RFID chips on them, make sure they are stored correctly, as the ink pump counter is logged the same on that chip whether the ink pump is pumping ink or air.

[mixedfeelings]

Re: MZ replace ink cartridge problem

is it there anyway to reset the ink or otherwise get around it? I am having the same problem (also on a yellow drum) and it is causing the same problem - with two new tubes (13/11 so just a little over a year old). One "ran out" at 1/4 a tube, and the other has 3/4 ink in it.

It also seems to be draining alarmingly fast when. This is a drum that I recently took apart, cleaned out, and converted from medium blue to yellow so perhaps I messed something up?

But these tubes should still be slammin!

[Iowatech]

Re: MZ replace ink cartridge problem

is it there anyway to reset the ink or otherwise get around it? I am having the same problem (also on a yellow drum) and it is causing the same problem - with two new tubes (13/11 so just a little over a year old). One "ran out" at 1/4 a tube, and the other has 3/4 ink in it.

It also seems to be draining alarmingly fast when. This is a drum that I recently took apart, cleaned out, and converted from medium blue to yellow so perhaps I messed something up?

But these tubes should still be slammin!

To my knowledge there is no way to reset the RFID on the ink tube. That's why it is kind of important to store the ink tubes cap down, the ink counter is based on how long the ink pump runs, and counts the same if the pump is pumping ink or air.
If you got those ink tubes from Riso, you should see if you can get warrantee replacements.
Even if you didn't get those ink tubes from Riso, you should check to see if you can get warrantee replacements. A good way to evaluate the quality of a non-OEM supply is how the manufacturer or distributor stands behind it.

[RiTech]

Re: MZ replace ink cartridge problem

This is a bit left field so I would appreciate some feedback.
I had a similar problem with a RZ370, around a 1/4 of a tube ink left but showing as empty, went through 8 - 10 tubes and tried various 'fixes' before the problem solved itself. I say solved itself as we never really worked out what fixed it.
Now the thing is, it was winter, admittedly not as cold a Nth America, but still cold. Could it be that the ink temperature has dropped and the ink is a bit thicker than it should be for proper operation. The pump is having difficulty pumping the correct volume because of the increased viscosity but the counter registers that it has pumped the correct volume and therefore registers that the tube is empty before it is.
The temperature of the ink tube could be checked with one of those imaging thermometers. The storage temperature for the ink should be on the tube.
I could be totally wrong here but I'm convinced that when we cranked up the temperature of the room where the machine is the fault went away.

[Iowatech]

Re: MZ replace ink cartridge problem

This is a bit left field so I would appreciate some feedback.
I had a similar problem with a RZ370, around a 1/4 of a tube ink left but showing as empty, went through 8 - 10 tubes and tried various 'fixes' before the problem solved itself. I say solved itself as we never really worked out what fixed it.
Now the thing is, it was winter, admittedly not as cold a Nth America, but still cold. Could it be that the ink temperature has dropped and the ink is a bit thicker than it should be for proper operation. The pump is having difficulty pumping the correct volume because of the increased viscosity but the counter registers that it has pumped the correct volume and therefore registers that the tube is empty before it is.
The temperature of the ink tube could be checked with one of those imaging thermometers. The storage temperature for the ink should be on the tube.
I could be totally wrong here but I'm convinced that when we cranked up the temperature of the room where the machine is the fault went away.

First of all, the range of temperatures the machine can operate in is found in the operator's guide. If you don't have one, you can download a copy from here.
I don't suppose you read the post directly above your post. You should do that now. Pay attention to what the ink counter is based upon.