Question about HP LaserJet 2420 Printer
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Posted on Jan 02, 2017
SOURCE: 49 4C02 error
turn off the IPP protocol, and turn off Multicast IPV4
The 49.xxxx errors are indeed related to firmware and the formatter and can indicate faulty firmware or formatter... but are almost always triggered by some kind of communication that the machine doesn't know what to do with... thus generating an error.
Power fluctuations (not clean power), or random noise (RFI/static) transmitted on network or printer cables can also cause this problem. If your unit sits on a line of power that is shared with other devices (another printer/copier or a group of computers or a vending machine or cooler)... move it to a dedicated power outlet.
If it's caused by signals the machine is receiving, it can be tricky to correct.
Posted on Feb 19, 2008
Please refer to the following document for a detailed illustration on how to remove & clean/replace the pickup roller in this printer model:
Posted on Oct 26, 2010
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