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Knowledgebase : 4200/4250/4300/4350 Technical Articles
HP Laserjet 4250 error 60.02 are caused by the lifter motor not properly lifting the tray 2 cassette.  This can be caused either by a faulty tray 2 cassette or a faulty lifter motor.  Pulling the tray 2 cassette out and inspecting it will reveal any pro...
Fuser Mode Adjustment  4200 4250 4240 4300 4350 
TO INITIALIZE NVRAM 1) Turn the printer power off. 2) Remove any installed accessories (for example, a stapler/stacker). 3) For HP LaserJet 4200/4300 Series printers: Hold down (DOWN ARROW button), and then turn the Printer power on. For HP Lase...
HP 4250 4350 Swing-Plate Instructions