Optical system for recording and reproducing an optical informat
Orifice band ink jet printer with ink confined by a counterpress
Orifice plate holder for a fluid jet printing apparatus
Paper edge detection in a printer
Paper guide with width sensing and width indication system
Paper transport for a printer test unit
Paper transport system for an ink jet printer
Pattern printing apparatus
Pattern printing apparatus
Pen operability checking system for vector plotters
Phase control for ink jet printer
Phase detection in an ink jet system printer of the charge ampli
Phase locked synchronizer for printer timing control
Phenolic compound, preparation thereof and recording material em
Phenolic developer resins
Photographic pipeline inspection apparatus including an optical
Photoplotter
Photosensitive recorder providing linguistic characters
Photosetting apparatus
Phthalide derivatives and recording system utilizing the same