Question about HP Color LaserJet 4650DTN Printer

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Attention Message I get an error message on the display stating that the front cover needs to be closed. The front cover is closed and I have double checked to make sure it's closed. I cannot continue to print test pages or do anything else. What are my options?

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First, be sure all four toner cartridges are seated properly as is the transfer belt. Close the front panel, then the top panel, power-cycle the printer and try again. If that doesn't solve the issue, it sounds as if either the actuator for the front door switch is broken off (which is highly unlikely) or the door switch itself is out of position. Getting to the switch involves removing most of the panels just to get to it; not impossible, just involved and a LOT of screws, plus a small black spacer for the top-left panel hinge. If you have any kind of a warranty or maintenance agreement on the printer, DO NOT TRY THIS, you WILL void it!! You have to unplug the printer, remove the fuser from up top, then the top panel, lower the front panel and remove the transfer belt and keep it out of the way in a dark area. Remove the hinged rear panel at the rear bottom followed by the rear panel (which fits inside a side panel, something to remember when reassembling). Now the side panel. If the switch is out of position, reposition it. If it's broken, it will need to be replaced. Reassembly is in the EXACT opposite of disassembly. You may wish to forego this and get an HP authorized tech in to do this for you. Worst Case Scenario: the DC Controller board is bad. But that's also unlikely ... possible, but unlikely. Let me know how it turns out!

Posted on Jun 16, 2007

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What you can do to clear the Drum Error message is to clean the corona wire.
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  1. Remove a misfed document if the copier displays a message reading "Document Jam." Lift up the document feeder cover and turn the roller to remove an Exit Misfed document. Lower the document feeder back into place and feed the document through again. If the document is jammed on the Input side, open the cover and gently pull the misfed document to the right and out of the feeder.
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