Question about Lexmark T642 Laser Printer

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I tried to replace the fuser wand, but some of the tabs broke off and now it won't stay.

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You might need to replace the Fuser Wiper Cover Assembly. The part number for the said part is 40X0001. Please contact any Lexmark Authorized Service Provider or contact our Technical Support Hotline.

Posted on Nov 07, 2012


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Clip and spring fell out of wand

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I'm sorry to hear about this - if the clip and spring have fallen out of the wand assembly, I'd encourage you to give our Helpline a call free on 1-866-693-9766 so we can provide assistance. If it's necessary to replace the wand, this should be covered by our 5-year guarantee, as long as the machine has been used in accordance with the terms and conditions listed in the user guide.

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Fuser error

Your machine is in need of a new fuser unit. HP LaserJet 2400 Maintenance Kit Installation - Fuser (Part 1 of 2) Installing the fuser. Turn the power off and unplug the printer. Wait 20 minutes for the printer to cool.
Open the back door of the printer, using enough force that the door opens completely and the hinge locks disengage, as shown below.

2400_openbackdoor.jpg Remove the 2 screws circled in red below.

2400_removebackscrews.jpg Close the back door, and then flip the printer so that it rests on its face. 2400_closebackdoor.jpg 2400_flipprinter.jpg

Next swing open the paper guard which shields the back of Tray 2 when it is installed.


Looking inside the Tray 2 cavity, use a flatblade screwdriver to release the two tabs--one on each side of the rear cover.
2400_pryleft_backgate.jpg 2400_pryright_backgate.jpg

Next remove the rear cover from the printer by pulling down and away.


Fuser Installation Continued . . .
Pry the grey DIMM cover loose and remove it.


Use a small flatblade screwdriver to disengage the tab on the connector shown below and unplug the connector.


Next (on the right hand side) remove the small black plastic cover, located near the green fuser gear, which hides the other fuser wires.
2400_removewirecover1.jpg 2400_removewirecover2.jpg

Then unplug the two connectors shown below and free the yellow/white wire from its guide clasp.


Now remove the four screws holding the fuser in place (shown below).


Now remove the black plastic piece shown below, the duplexer inlet guide. Gently pry the tabs on both ends loose and slide/rotate the guide back towards the fuser to release it.
2400_removeduplexguide2.jpg 2400_removeduplexguide3.jpg

Now you can remove the fuser, just pull it straight out towards you. Don't install the new fuser until you've replaced the main motor gear, as shown below.

Replacing Fuser Drive Gear

With the fuser removed, look into the printer and locate the main fuser drive gear on the left side of the fuser cavity (gear circled in red below).


Use a flathead screwdriver to pry the gear's release tab and remove the gear by sliding it off its metal bar.

2400_gearreleasetab.jpg 2400_removegear.jpg

Slide the new gear onto the metal bar--make sure the gear's release tab faces outwards so it will be accessible again--and lock the gear firmly in place.

Now repeat the fuser removal process backwards as you install the New Fuser:

Insert the new fuser and replace the four fuser screws. Replace the black plastic duplexer inlet guide, making sure both tabs click in place. Re-plug the single connector on the left side, and the two connectors on the right side. Replace the wire cover on the right side. Reinstall the DIMM cover. Finally, replace the back cover with its screws.

This is a difficult installation which should be done by a technician. Good luck with it !

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Lexmark c522 printer stripes on page

thin, pencil-like stripes could call for the replacement of one or both of the following:
The drum cartridge or the fuser cartridge.
What few people seem to know is that there is usually a cleaning wand that goes above the fuser. This wand keeps the fuser clean and makes it last MUCH longer than without. When it gets really dirty it can actually aid in destroying the fuser rather than extending its life. If the lines JUST began to show up you may be able replace the wand and then hopefully the lines will begin to fade.
Here's the easiest way to tell which is causing the problem.
1. Carefully remove the cartridge from the unit. Underneath the cartridge is a small flap covering a (probably) green photo drum. Gently move it to expose the drum. If the drum has slightly off green lines or black lines in the same area your paper shows lines then you need to order another cartridge.
2. If the cartridge is clean, then remove the top panel that rests in the groove where the copied paper lays after the printer spits it out. It should slide to the left and lift out. Inside, there is a small (probably) black wand that has a small handle on one side that will lift out. Using a flashlight, look inside the machine. If the fuser is bad, it should have lines in the areas your copied paper is lined. If it does, replace the fuser.

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