4 X Printer Head HP Designjet 110Plus 111 500 510 800 Ps / No. 11 / BK+C + M | eBay
HP Designjet Designjet 510 31 A1 prints per hour - black line drawing (draft, A1 plain paper) Black Print Speed 2400 x 1200 dpi Color Print Quality LPT / USB InkJet Large