On Tuesday, January 7, 2003, at 09:29 PM, Ward Oldham wrote:
> Well Jerry,
>
> Now you have confused me. There's no disagreement with the
> electrostatic charging of the cartridges. That's the process that
> occurs when you first power up your printer (and a process that should
> not be interrupted).
>
> It was I who mentioned the contacts. I'm a little out of date with HP
> technology, but historically HP manufactured their cartridges with the
> print head integrated into the cartridge. Their argument of superior
> print quality was every time you changed a cartridge, you had a fresh
> print head. Epson's print head was always integrated into the
> printer. Changing ink cartridges only changed the ink supply.
>
Sorry about any confusion...
David did not mention which printer he was referring to. I did not wish
to respond with info about one, when he may have been talking about
another (one of the older ones, plenty of which are still out there in
use). And we are in complete agreement (I believe thus far have always
been) about the electrostatic charging not having anything to do with
sensing the ink levels....
Jerry
> Several years back (probably with the introduction of usb) the
> contacts or sensors were integrated into the Epson printer ink
> cartridges. That's the integrated electronics that senses the ink
> levels in the cartridges. The electrostatic charging of the
> cartridges has nothing to do with sensing the ink levels.
>
> OK, you guys. Now separate the fact from the fiction.
>
> Ward Oldham
>
>
> On Tuesday, January 7, 2003, at 07:44 PM, Jerry Yeager wrote:
>
>> Umm, it may have been a combination of us both or someone else. I
>> mentioned the electrostatic charging of the cartridges, but I don't
>> recall whom mentioned the electrical contacts. The contacts (if you
>> have them) will be there or not depending on the printer you have.
>> The ones that have the cartridge as the print head would use them to
>> "talk" to the driver in the computer to get the information about
>> printing the page. The ones that have a separate print head don't use
>> the contacts, as they just use the cartridges as storage tanks.
>>
>> Jerry
>>
>> On Tuesday, January 7, 2003, at 06:30 PM, David Dudine wrote:
>>
>>> Jerry,
>>>
>>> My thick head seems to remember in the previous thread that you or
>>> Ward said
>>> that all recent Epson ink jet printers are the electrostatic type,
>>> and that
>>> this system required the electrical contacts on the cartridges.
>>>
>>> So, what are those cartridge contacts for, again, and where are they
>>> used?
>>>
>>> Thanks,
>>>
>>> David Dudine
>>>
>>>
>>>
>>>
>>> | The next meeting of the Louisville Computer Society will
>>> | be January 28. The LCS Web page is <http://www.kymac.org>.
>>>
>>>
>>>
>>
>>
>>
>> | The next meeting of the Louisville Computer Society will
>> | be January 28. The LCS Web page is <http://www.kymac.org>.
>>
>
>
>
> | The next meeting of the Louisville Computer Society will
> | be January 28. The LCS Web page is <http://www.kymac.org>.
>
>
>
| The next meeting of the Louisville Computer Society will
| be January 28. The LCS Web page is <http://www.kymac.org>.
