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EPSON SC F2000 ink price

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Old February 2nd, 2014 Feb 2, 2014 6:52:50 AM -   #46 (permalink)
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Default Re: EPSON SC F2000 ink price

Quote:
Originally Posted by Copenhagen
I guess it in the end it will give less problems with closed cartridges than I have had with my Texjet-fill-yourself-cartridges (and yes I know it is more expensive, but if less problems it might be worth it)


We have seen, and many posts by other Epson testers seem to also indicate, no clogging issues when leaving the F2000 unused for an extended period of time. The closed cartridges, with the built in filters, are a major factor in this.
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Old February 2nd, 2014 Feb 2, 2014 7:09:05 AM -   #47 (permalink)
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Default Re: EPSON SC F2000 ink price

I wonder if part of that strength comes from the 5 individual dual-channel capping station areas.

Technically, can't the printhead sense clogs due to higher temperature responses within a channel, and then do a wipe-and-purge on that individual dual-channel?

With those who use an Epson aqueous printer, they are limited to an entire bank of channels per wipe-and-purge. In that case, even custom ROM-based aqueous conversions may not even bother to check nozzle temperature.
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Old February 2nd, 2014 Feb 2, 2014 10:01:08 AM -   #48 (permalink)
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Default Re: EPSON SC F2000 ink price

Brian, there is actually only one cap assembly that pulls the ink. There is a set of 5, but there is no pump attached to it. So when the cap pulls ink, the head moves over to the single cap with pump and pulls from two channels. The other 5 are meant to remain dry.
 
 
Old February 2nd, 2014 Feb 2, 2014 11:26:24 AM -   #49 (permalink)
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Default Re: EPSON SC F2000 ink price

Quote:
Originally Posted by JeridHill
Brian, there is actually only one cap assembly that pulls the ink. There is a set of 5, but there is no pump attached to it. So when the cap pulls ink, the head moves over to the single cap with pump and pulls from two channels. The other 5 are meant to remain dry.
Interesting. I belive this is different than on other Epson machines with TFP head right?
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Old February 2nd, 2014 Feb 2, 2014 11:28:26 AM -   #50 (permalink)
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Default Re: EPSON SC F2000 ink price

Quote:
Originally Posted by JeridHill
Brian, there is actually only one cap assembly that pulls the ink. There is a set of 5, but there is no pump attached to it. So when the cap pulls ink, the head moves over to the single cap with pump and pulls from two channels. The other 5 are meant to remain dry.
Understood.

How does the Epson know which dual channel to pull from? Does it equally pull from all 4 dual channels? Or does it analyze the temperature reading of each channel set individually and figure out which channels might have non-working or partially-working nozzles?

The thing about a clog is that the printhead processor SHOULD be aware of the clog in stages. I am doubtful that a printhead nozzle just clogs and closes off entirely. I figure a clog likely starts off slowly as a partial clog -- reduced ink flow leading to higher nozzle temperatures to try to eject ink at a higher rate of speed leading to more particulates building up in that nozzle leading finally to a clog with zero ejection.

If that's the case, I would guess that the Epson can determine that a nozzle is starting to get clogged, and then run a short purge with the printhead running in the largest picoliter size to try to evacuate the early clog before it becomes a situation.

Or, maybe the Epson printhead is "dumb" like the third party DTG printers and just primes all the printheads equally? That would be sad.
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Old February 2nd, 2014 Feb 2, 2014 11:32:07 AM -   #51 (permalink)
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Default Re: EPSON SC F2000 ink price

There's quite a few technical details I'm sure will remain closed information (most likely proprietary). If this is available info, I haven't seen it yet.
 
Old February 2nd, 2014 Feb 2, 2014 11:43:19 AM -   #52 (permalink)
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Default Re: EPSON SC F2000 ink price

I need to spend a day or two with the Epson to see how the cleaning cycle goes (especially between shirts). A small camera or two mounted properly would probably give us a lot of information that Epson wants to keep proprietary.

It doesn't really matter that much, though. Epson controls the printhead tech. Third parties buying Epson hardware generally aren't buying the ability to modify the motherboard and add much-needed features. They're not investing in their own custom capping station assemblies, etc, etc.

This is a big coup for Epson because of controlling the technology chain.
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Old February 2nd, 2014 Feb 2, 2014 11:43:57 AM -   #53 (permalink)
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Default Re: EPSON SC F2000 ink price

Quote:
Originally Posted by treefox2118
Understood.

How does the Epson know which dual channel to pull from? Does it equally pull from all 4 dual channels? Or does it analyze the temperature reading of each channel set individually and figure out which channels might have non-working or partially-working nozzles?

The thing about a clog is that the printhead processor SHOULD be aware of the clog in stages. I am doubtful that a printhead nozzle just clogs and closes off entirely. I figure a clog likely starts off slowly as a partial clog -- reduced ink flow leading to higher nozzle temperatures to try to eject ink at a higher rate of speed leading to more particulates building up in that nozzle leading finally to a clog with zero ejection.

If that's the case, I would guess that the Epson can determine that a nozzle is starting to get clogged, and then run a short purge with the printhead running in the largest picoliter size to try to evacuate the early clog before it becomes a situation.

Or, maybe the Epson printhead is "dumb" like the third party DTG printers and just primes all the printheads equally? That would be sad.
My guess is that your last sentence will be correct. There are more variables than a clog that can cause a temp differential for once and also I doubt that there is a thermistor for every single nozzle.

CUrrently I belive that only way for automation for head cleanings is PW sensor (Or ink mark sensor not sure which one does that) reading the nozzle check printout. This could be interesting if it would incorporate a cleanning pump pressure change depending on number of lines missing in the nozzle check pattern.
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Old February 2nd, 2014 Feb 2, 2014 12:02:31 PM -   #54 (permalink)
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Default Re: EPSON SC F2000 ink price

If you spend some time on Google Patents, you'll see that Xerox patented the nozzle check sensor (2001 or so) -- Xerox also owns the patent to try to "purge" a printhead based on information response from a single nozzle. I don't have my home laptop here where I have these bookmarked (I think) but they're both interesting and old patents that are still valid. It might be a reason why Epson won't change the current state of a clog abatement -- licensing costs.

Still, I would be really saddened if Epson didn't do more than just a wiper roller cloth and a smaller capping assembly to focus on fewer channels. There is so much that Epson CAN do with their current printhead that just seems to be left out. I understand that Epson makes a lot of cash selling their printhead tech to big industries that put DTG in the tiny minority, but considering their power in owning most of the tech, I was hopeful to see something different.
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Old March 21st, 2014 Mar 21, 2014 1:07:55 PM -   #55 (permalink)
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Default Re: EPSON SC F2000 ink price

I have had the printer for 2 weeks, I need to shake the cartridges. I have not yet printed with white....but tested nozzles and run light end medium cleaning to get the white lines....and then it does this ink circulation thing that sounds very drastic.....and today it asked me to do a tube cleaning of the white tubes, I had to put in cleaning cartridges in, and it did whatever it had to do....nozzle check still perfect white lines, I am very interested in how long you can actually leave the printer unattended.
I think Epson should add a feature to the firmware that makes it possible for the printer to do ink circulation og light clean every day by itself....now I am scared to leave for vacation
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Old March 22nd, 2014 Mar 22, 2014 4:25:44 AM -   #56 (permalink)
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Default Re: EPSON SC F2000 ink price

I've let this system sit for a week turned off with with white ink in it and no issues. Even for the last show, I shipped it to the show with all ink in the system with no problems. This isn't something I normally would do nor recommend, but we were told by EPSON that if you knew you wouldn't be around for a month or more, flush out the white ink.

Also, you will want to turn off the Auto Clean in your settings on the printer. It will do a Medium clean every time you turn the system on and it's not necessary, it just becomes a waste of ink. You will still want to do a light clean on the white channels only after you power the system on. A Medium clean should be used only if you would have some serious clogging issues that wouldn't go away (something I have yet to see).

1) Turn on Printer
2) Printer prompts you to shake the white cartridges, pull them out and shake them for 15 seconds
3) Choose OK on the printer that you've done this
4) Printer does ink circulation
5) Run a Light Clean on the white channels only
6) Do a nozzle test

In our environment, 1 light clean is all that ever seems to be needed, but a Medium clean uses close to 10 times the amount of ink a Light clean does. So even if you had to do 2 or 3 light cleanings, it's much less than a medium clean.
 
Old March 22nd, 2014 Mar 22, 2014 4:36:45 AM -   #57 (permalink)
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Default Re: EPSON SC F2000 ink price

thanks again Jerid...

For the same reason I have not turned the printer off, unfortunately the fan is running all the time, but I hope that might change in an firmware update

I have heard the same, that it can be off for a while without problems...my old texjet died from that so I am a little paranoid

I did buy cleaning cartridges and figure they can be in it while I am gone

But so far no problems...I have done the light cleaning and only one the medium......but would be cool if you could ask it to do that once every day...so if you talk to Epson suggest that

-H
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Old March 22nd, 2014 Mar 22, 2014 4:45:47 AM -   #58 (permalink)
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Default Re: EPSON SC F2000 ink price

Honestly, it's safe to turn the system off. I was in the same mindset at first due to the nature of direct to garment ink, especially the white, but I had to test the boundaries so I could let others know the effectiveness and routines of the printer.

Turn it off every day, but make sure you turn off the auto clean when powering on mode. Your whites will always drop out for the next day, but this will do it with or without the printer on. A Light clean will get it back with no issues. Like I said before, I left the printer off for a week (attending a trade show) and came back with no problems. If I remember correctly, I had to do a couple of simple cleans on all channels, but after that, it ran with no issues. So far, since December, I have yet to have an actual clogged nozzle.
 
Old March 22nd, 2014 Mar 22, 2014 6:49:20 AM -   #59 (permalink)
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Default Re: EPSON SC F2000 ink price

Agree with Jerid. We have had the same experience with our F2000 demo unit. We have never had a clogged nozzle and have also left it unused and off for an extended period of time.

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Old March 22nd, 2014 Mar 22, 2014 7:49:19 AM -   #60 (permalink)
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Default Re: EPSON SC F2000 ink price

Thank you so much for your feed back Jerid and Harry, I really appreciate it, sorry for my many questions…but of course I have a few more

Where do I remove the auto cleaning on start up ?
I am not sure i can find it, is it "Print setup” -> "power on cleaning" ?

And how often do you clean the heads with the cleaning liquid?

and Jerid isn’t 1:1 always f.ex 10 ml to 10 ml and 1:3 f.ex. 10 ml to 30 ml ? even though we are on different continents
- sorry maybe that was the other thread
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