HP Deskjet 320 Solutions Guide - Page 25

Table 1-14. Reliability Specifications Category Printer usage Specification 500 pages per month maximum Mean time between failures (MTBF) 20,000 hours (2000 hours power-on and 12,000 printed pages per year) Mechanism life 25,000 pages Table 1-15. Graphics Resolution Horizontal Resolution 75 pixels per inch (ppi) 100 ppi 150 ppi 300 ppi Vertical Resolution 75 ppi 100 ppi 150 ppi 300 ppi Number of Dots Per Pixel 16 9 4 1 Table 1-16. Interface Specifications Category Interface Specification Centronics parallel Receive buffer size DeskJet 340, 320 DeskJet 310 DeskJet Portable 16K or 48K (using DJPMenu) 48K 48K Table 1-17. Battery Pack Specifications Category Battery type Specification 6 volt, 1.2 Ah nickel cadmium Typical number of black pages printed per charge Typical number of color pages printed per charge 100 pages 23 pages (with 25% page area coverage1) 1. "page area coverage" refers to the surface area of a page covered by an image. It does not take into account ink density. Product Information 1-19