312 SpecificationsCopy SpecificationsScanner SpecificationsItem DescriptionCopy Resolution Document glass: 600x600 dots/25.4 mm (1 inch),ADF: 600x300 dots/25.4mm (1 inch)(Same for Color/Black&White)Copy Speed Color 12 cpm or more, Black&White 15 cpm or more (When using the document glass tomake sequential copies of a document with pages scanned one by one.)Color 2.87 cpm or more, Black&White 10.64 cpm or more (When using the ADF to makesequential copies of multiple documents.)Paper Size A4, A5, B5, Executive, Letter, Folio, Legal, Monarch, DL, C5, Envelope #10Zoom Rate Document glass: 25% - 400%, ADF: 25% - 400%Multiple copies 1 - 99 pagesCopy mode (=Original Type) Text, Text & Photo, PhotoScanning method Document glass: Document-fixed flatbed scanning methodADF: Carriage-fixed, document-feeding scanning method (one side scanning)Item DescriptionCompatibility Tool Without An Interesting Name (TWAIN), Windows Image Acquisition (WIA)Scan Resolution TWAIN: 75 x 75 to 4800 x 4800 dots/25.4 mm (1 inch)WIA: 75/100/150/200/300/400/600 dots/25.4 mm(1 inch)Resolutions other than the following are achieved by driver's resolution conversion:200 x 200 dots/25.4 mm (1 inch)300 x 300 dots/25.4 mm (1 inch) (Default)600 x 600 dots/25.4 mm (1 inch)1200 x 1200 dots/25.4 mm (1 inch)Color bit depth 24 bit (WIA, TWAIN)Mono bit depth 1 bit for Line art and 8 bit for Gray scaleEffective scanning length Document glass: 297 mm (11.69 inches),ADF: 355.6 mm (14 inches)Effective scanning width 215.9 mm (8.5 inches)Scan speed (Text mode) Black&White:641.22 μsec/line (600 dots/25.4 mm (1 inch)),1265.19 μsec/line (1200 dots/25.4 mm (1 inch))Color:2176.52 μsec/line (600 dots/25.4 mm (1 inch)),4363.36 μsec/line (1200 dots/25.4 mm (1 inch))