Question about HP LaserJet 2420 Printer
Pls. help me to how to change the product seriqal number of hp laserjet2420 printer
You cannot it is written within the main controller board. The only way to do this is fit the firmware chip from the old board to the new machine. Unfortunately this can kill the machine and render it useless.
Posted on Dec 27, 2007
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Posted on Jan 02, 2017
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