Question about Lexmark T640 Laser Printer

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Network connections to Lexmark T640 Laser Printer

Just purchased a Lexmark T640 for my computer lab in a high school. Problems have arisen from the beginning. My previous HP 420 series was a work horse and networked easily. This printer will disconnect from our network on a regular basis. If more than one student is printing at the same time, instead of stacking up in memory, at least one of them will get an error message that they cannot print due to printer setup problems. Other times they CAN print! It is as though only one can print at a time and have to "time it" so that this error doesn't show up. Can anyone help me?

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Might try going into the printer setup on each computer and set it to print after the current job is finished. Let me know :-)

Posted on Sep 15, 2007


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The Lexmark T640 and similar printers requires a separate part known as an Envelope Feeder. They can be purchased at your local office supplies store.

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How to replace the power supply unit on the Lexmark T640

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Sep 20, 2010 | Lexmark T640 Laser Printer

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RIP software

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Feb 09, 2010 | Lexmark T640 Laser Printer

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Please go >>Technical Support.

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T640 has ethernet port but not on networkh-m-dThaepbd'tsuomn,ndih

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Normal 0 Could have a corrupt driver.
Disconnect the printer or at least be sure it is turned off. I'd do both and when the CD software program asks you to connect the printer to the USB port, do so and it should again work properly.
Hope this helps. Bud

Dec 30, 2008 | Lexmark T640 Laser Printer

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