Duplex image forming system with number of single side printed s

Duplex image reading apparatus

Duplex image recording apparatus with memory

Duplex printer with a pair of ink transfer rollers

Duplex printer with internal hard drive

Duplex printer with internal hard drive

Duplex printing method for a simplex only printer by electronica

Duplex scanner capable of calibrating two-sided documents

Duplex scanning apparatus

Duplex/simplex automatic sheet feeder

Duplicate images files for improving image handling and...

Duplicating radiographic, medical or other black and white image

Duplicator having function concerning specific mark put on recor

Dust and dirt detection in image reading apparatus having...

Dust and/or dirt detection in image reading apparatus having...

Dust and/or dirt detection in image reading apparatus having...

Dust proof optical system for optically reading and writing on a

Dust tolerant windowless scanner

Dust tolerant windowless scanner

Dust-free scanner