HP DeskJet GT 5810, 5820 Printers – A Blinking ‘P’ Error Displays May 1, 2019 by cloud host On the printer control panel, press and hold the Resume button for 3 seconds to start the priming process.
for 3 seconds to start the priming process. for 3 seconds to start the priming process. for 3 seconds to start the priming process.