The RENA Envelope Imager I.5 The RENA Envelope Imager 1.5 RENA Desktop Inkjet Envelope Imaging System Economical – All the quality you expect from Rena at a very attractive price Tough – Engineered for years of trouble-free operation Fast – 30,000 postcards per hour; 22,000 envelopes per hour Simple – Load it up, turn it on, and you’re ready to print – it’s that easy! Specifications Speed Rating   Postcards 11,000/hr #10 Envelopes 7,200/hr Material Size:   Width 5" - 14" Length 3" - 14" Maximum Material Thickness 1/8" DPI Range 150 DPI to 600 DPI Print Heads 3 Banks of Heads 1 Print Area 1.5" Internal Printer Memory 64 MB Hopper Capacity 300 No. 10s Duty Cycle 500,000 per Month Printer Life 30 Million Address Interface USB 2.0 & Parallel Dimensions   LxWxH; Weight 19" x 21" x 20.5"; 53 lbs.