Mobile Printer Accessories and Supplies › VP420 ᅵ Gamber-Johnson Mounting Plate Image 1 of 1 VP420 ᅵ Gamber-Johnson Mounting Plate $43.00 VehiclePro 420 mounting plate for all Gamber-Johnson consoles. Part# 93759Compatible Printers: FP541 Quantity: Add To Cart Added! VehiclePro 420 mounting plate for all Gamber-Johnson consoles. Part# 93759Compatible Printers: FP541