Archived from groups: comp.periphs.printers (
More info?)
Funny how both Kennedy and I have the same information to provide. I
didn't read his reply until a few minutes ago. The economics are pretty
obvious to anyone who gave it a bit of thought.
I know this is something probably completely outside of your
understanding, and you might even find it horribly offensive, but since
I'm feeling so generous, being the US thanksgiving season and all (even
though we had thanksgiving about a month ago here in Canada) I'm going
to GIVE anyone who wishes to follow them, instructions for getting
around the waste ink pad situation. Since it is a retrofit, it does
involve people opening up the printer case, and probably drilling some
holes in the side of it, and it isn't as pretty as it could be done at
the factory.
Epson printers have either one or two vacuum pumps which are actually
eccentric pumps that run off the platen motor. Most newer Epson
printers with one incorporated head have only one. Older models which
had a separate black and color head used two. They basically work by
"milking" a silicone rubber tube that is connected to the cleaning
station. The tube runs through a eccentric cam that pushes out the
excess ink while creating a vacuum in front of it to purge the heads
nozzles of ink.
This tube isn't very long, and the end that doesn't connect to the
cleaning station sits inside some felt-like batting which leads to the
waste ink pad, or right on top of the waste ink pad. The waste ink
simply leaks into the absorbent material.
Since a retrofit to make the waste ink pads easier to get to would be
very involved (although easy to manufacture into the printer to begin
with), the next best thing is just to bring those waste ink tubes
outside of the printer and have them deposit their ink into an external
container. To do so, you have to open up the printer case (I am sorry
but I cannot provide the instructions for doing this, as each model of
case is different and some involve so tricky interlocks that you need a
service manual to comprehend). Once you have the unit open, you simply
locate the one or two tubes coming out of the vacuum pump(s). You then
need to find an appropriate preferably silicone tubing which you can
either junction with the other tube with a coupling or a tube which fits
over the other tube's outside diameter and add enough tubing to allow
the end of the tube to be brought outside the printer through a hole
made in the appropriate place in the case. You probably should not have
the tube going back up hill, as it will cause the ink to pool and
possible flood the cleaning station with the old ink. Probably the best
way to insure proper flow in this jury-rigged method, is to lift the
printer up a few inches higher than the location the container that will
catch the ink will sit. You may wish to place some absorbent material
(disposable diaper?) in the container to help the ink to flow out (by
capillary action) and to keep the end of the tube from drying and clogging.
Replace case, feed tubes through holes you created, place tubes in
container, and when the printer shuts down due having reached protection
number, reset the EEPROM via the button presses and make sure the
container still has room for ink. If it gets filled, replace it.
OK, guys, go to town. Patent it, sell retrofitting services, make a
fortune, hell, I don't care. There is a lot more to life than money,
and Ototin, hopefully, over time, even you will figure that out.
Enjoy!
Art
Ototin wrote:
> On Sun, 28 Nov 2004 03:10:17 +0000, Kennedy McEwen
> <rkm@nospam.demon.co.uk> wrote:
>
>
>>In article <oj1hq01tonu6qoa44qpnj8vmakpt3ha50f@4ax.com>, Ototin
>><bangsit@balay.ca> writes
>>
>>>On Sat, 27 Nov 2004 11:17:09 GMT, Arthur Entlich <artistic@telus.net>
>>>wrote:
>>>
>>>
>>>>Hi Robert,
>>>>
>>>>In a perfect world, changing the waste ink pads would be as simple as
>>>>removing a little sliding drawer and dumping the old pads in a plastic
>>>>bag and putting in some new ones, or better yet, having the ink go into
>>>>a small plastic bottle that could be replaced or emptied.
>
>
>>>A suggestion for you. Instead moaning and complaining, why not design
>>>the system you mentioned above. You and your lawyer can then approach
>>>Epson with your design improvement to their printers and be rewarded
>>>with huge amount of money. I would do it but unfortunately I don't
>>>have the know-how. If you have an aversion to having a huge amount of
>>>money I'd gladly take the money. Thanking you in advance.
>
>
>>A suggestion for you. Learn some basic economics!
>>Epson haven't done it this way because they couldn't design a user
>>replaceable waste ink pad.
>
>
> Perhaps you and Arthur Entlich could design a user replaceable waste
> ink pads so as to satisfy "some basic economics", whatever that is. I
> just wish you and Arthur Entlich would put your energy and time
> towards a solution rather than complaining about it. You don't have to
> share the solution with Epson. Just sell it directly to the owners of
> Stylus ink jet printers. Just be careful that you don't make 'at least
> 50% clear profit'. I think a 0% clear profit is fair.
>
>
>>They have done it this way because they can
>>get more money from you, their customer. Showing Epson how to do the
>>job properly will neither get you any interest or any income because for
>>them to pay you, they need to make more money, not less!
>
>
> Isn't increasing the price of the printer the answer for them to make
> more money? Or does the target consumer of these printers not willing
> to pay for it.
>
>
>>>Waste ink pads for most Stylus ink jet printers are readily available.
>>>The waste ink pads on average cost less than $10.00CDN each.
>
>
>>Which is about 1000x what they cost, and represents at least 50% clear
>>profit after transport and storage costs are taken into account.
>
>
> I can't comment on the "1000x what they cost" because I don't know how
> much they cost. Since you are privy to such knowledge I'll take your
> word for it. Perhaps you could start an organisation to stop companies
> from making 'least 50% clear profit'. What would be a fair profit
> margin?
>