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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Re: Network connections to Lexmark T640 Laser Printer

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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Why will my T632 not print over Wi-Fi from my 2011 iMac (10.7.4)?

If the Lexmark T632 is already connected through the Ethernet, it will not be possible to connect it through wireless. The printer cannot be configured with both the Ethernet and the wireless function enabled. The printer will choose the physical connection (Ethernet / LAN) over the wireless connection.

Aug 03, 2012 | Lexmark T632 Laser Printer

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How do we feed envelopes to print?

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.

Feb 28, 2011 | Lexmark T640 Laser Printer

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Can I make a "non-network"

With a USB print server like this one, you can hook your printer to one of the wired ports on your router and it can be accessed by any connected computer. (There are other sources and adapter styles; I just picked this one as a sample. I've installed several of these and it works well.)

You can also share a printer on the network by installing it on a computer as a network printer and enabling printer sharing on that computer. But then that computer will need to be left on all the time for others to access the printer, and if people frequently use the printer it will slow down the computer for whoever is using it.

Jan 30, 2011 | Lexmark T640 Laser Printer

1 Answer

How to replace the power supply unit on the Lexmark T640

hi. I wold like to know the output voltage from the several pins in the low voltage area (the blue wires connection) in the power supplier of a Lexmark T640.

Sep 20, 2010 | Lexmark T640 Laser Printer

1 Answer

RIP software

Below is the link to download driver for T640 Laser Printer. -
Please let me know if you have any further questions or concerns.

Feb 09, 2010 | Lexmark T640 Laser Printer

1 Answer

Lexmark T640 Error 917.00, I have changed the

you need to change the high voltage power supply to fix this error i have found this to be the problem 98% of the time and i do csome 1200+ repairs on these printers a year

Nov 27, 2009 | Lexmark T640 Laser Printer

1 Answer

Lexmark T640 print black page

if the printer is kicking out all black pages a couple of things can cause this first open both front doors and remove the toner cartridge. leaving the lower front cover open slowly lower the top cover watch the charge roller as it lowers with the lid make sure it is comming down striaght. if it is replace the high voltage power supply

Nov 20, 2009 | Lexmark T640 Laser Printer

1 Answer

Lexmark T640, 242.10 jam error

Please go >>Technical Support.

Place the T640 model number into the first search box. When the T640 block opens up do a search for "ENUS23982."


Jun 10, 2009 | Lexmark T640 Laser Printer

1 Answer

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

Please, go through the printer's menus and make sure that the Ethernet port is activated.

You can also do this by printing out the printer's menus and checking the network configuration on the printer.

May 02, 2009 | Lexmark T640n Laser Printer

1 Answer

Lexmark T640 LCD display went blank

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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