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 I'm a little out of date with HP technology, but historically HP manufactured their cartridges with the print head integrated into the cartridge.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. 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>.
