4R is a Vietnamese computer service company which provides clients with server
solutions, network and information security solutions, and data & storage management
HP LaserJet 5mp Printer (C3155A)
HP LaserJet 6mp Printer (C3982A)
HP LaserJet 6p Printer (C3980A)
HP LaserJet 6p se Printer (C4212A)
HP LaserJet 6p xi Printer (C4213A)