power supply C7769-60387 C7769-60145 C7769-60334 C7769-60122 CH336-67012 CH336-67014 for HP DesignJet 500 C7769B HP DesignJet 500 C7770B HP DesignJet 500 mono C7769E HP DesignJet 500PS C7769C HP DesignJet 510 CH336A HP DesignJet 510 CH337A HP DesignJet 510PS CJ996A HP DesignJet 510PS CJ997A HP DesignJet 800 C7780B HP DesignJet 800 C7779B HP DesignJet 800PS C7779C HP DesignJet 800PS C7780C HP DesignJet 815MFP Q1279A HP DesignJet 820 MFP Q6685A HP DesignJet Copier CC800PS Q1262A