Question about HP 640 Inkjet Fax Machine
This printer carrege unit is short please replace the printer carreage unit
Posted on May 06, 2014
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Posted on Jan 02, 2017
Still sounds like a bad ink cartridge, try cleaning the bottom of the cartridge with a Kleenex and soapy water. Dry it off real good.
Look where the cartridge sits and clean the same way.
Ink jets are dead technology.
Posted on Nov 11, 2008
Yes , if the fax machine says low ink or toner , then it needs it alos check the drum corona wire, It may need cleaning, and you can clean it using a #2 lead pencil eraser, Gently in the wire, then replace wire and try receiving a fax.
Posted on Jul 12, 2009
Though the ink level it said was "6 / 8", when I removed the cartridge to examine it looked bone dry empty to me. I replaced the ink cartridge. It works fine, and reports the ink level as "8 / 8".
Posted on Sep 10, 2009
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