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HP2420 Manual Hi, I have a 2420n and am trying to replace the "fuser unit" (the bit under the toner cartridge in case I have named it incorrectly) I have all the parts as part of a kit - complete with rubber gloves - but cannot find instructions anywhere. From first looks I can see that I need to unscrew / dismantle several pieces so would like to know where I can find instructions or a tech manual for the printer. Many Thanks in advance I am going to change the fuser in my HP2420dn and have read the resolution to the previous question which was a PDF of the HP2420 Manual. The only thing that was in the manual regarding the fuser was to how to run a cleaning sheet of paper through the printer to clean the fuser. Is there a more technical information that shows how to disassemble the printer and replace the fuser?

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Are you sure it's not the transfer roller that you want to replace?? this is the roller which sits directly under the toner cartridge, the fuser sits more towards the rear of the printer. I'll list instructions for removing both. Hope this helps

To remove the transfer roller -
1. Release the left end of the transfer roller by using needle-nose pliers to pinch two tabs at
the left end of the transfer roller.
2. Use the needle-nose pliers in the same manner to release the other end.
3. Lift the transfer roller out of the printer.
The left end of the transfer roller has a spring attached. At the right end of the roller, the
spring is attached to the printer rather than to the roller. As a result, the spring at the right
end remains in the printer.

To remove the fuser -
1. Remove the back cover and the I/O cover.
2. Remove the fuser-cable cover by releasing one tab on the cover, and then
rotating the back of the cover toward the center of the printer.
3. Remove the duplexer inlet guide by releasing two tabs on the guide, and then
sliding the guide toward the back of the printer.
Reinstallation tip
Make sure that both tabs snap back into place when reinstalling the duplexer inlet guide.
4. Disconnect two cables at the left, inside, of the printer.
5. Disconnect the fuser cable at the right side of the printer.
6. Remove four screws securing the fuser.
7. Tilt the fuser slightly toward the back of the printer, and then slide the fuser out of the
back of the printer.

To remove the back cover -
1. Open the face-up delivery door all the way, and then press the door down to disengage
two door-stops.
2. Remove two screws
3. Close the face-up delivery door, and then tip the printer so that it rests on its front.
4. Open the "legal-size" cover, and then disengage one tab.
5. Lift the bottom of the cover first, and then lift the cover away from the printer.
6. Tip the printer back so that it rests on its feet.
To remove the io cover (looking at the printer from the rear, this is the small cover on the left side) -
1. Rotate the I/O cover to clear tabs at the right side of the cover.
2. Lift the cover off of the printer.

Posted on Nov 12, 2008

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Posted on Nov 12, 2008


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