SAN FRANCISCO (03/20/2000) - Three new scanners make the cut this month. Canon Inc.'s bargain-priced CanoScan FB 630P joins the chart with surprisingly sharp images for a Contact Image Sensor model. The other SOHO newbie, Hewlett-Packard Co.'s ScanJet 5300Cse, replaces the ScanJet 5200Cse, and on the corporate side, the Astra 4000U supplants the Astra 2400S; both of these newcomers have better resolution than their predecessors but somewhat less speed.