A Justine Worley, Heinz Waschhauser, Charles W Dodge, Walter E Borra: Automatic document feeder quick release hinge assembly. Hewlett Packard Company, Jerry R Potts, January 11, 2000: US06012714 (106 worldwide citation)

An automatic document feeder having a quick release hinge assembly for attachment to a computer input device having a medium receiving surface and an associated aligned flat bed bezel with at least one receiving sleeves includes a plurality of interconnectable modular assemblies where one of the ass ...

Heinz Waschhauser: Blotter for ink absorption. Hewlett Packard Company, October 13, 1998: US05821955 (2 worldwide citation)

A blotter for ink absorption in ink-jet printers includes two parts of a cellulose fiber material, one adjacent the other and in physical contact, beneath the service station and on the base of the printer. The blotter parts have the capacity to simultaneously absorb at least the contents of four in ...



Stephan W Emmenegger, Gregory T Hulan, Heinz Waschhauser: Automatic document feeder with improved sheet handling capabilities and method of feeding and scanning over-sized media sheets. Hewlett Packard Company, February 27, 2003: US20030038992-A1

An automatic document feeder (ADF) has a paper path that starts with an input tray, leads to an operational station such as a scanner, and then ends with a substantially vertical output tray. The ADF has a mechanism for picking off an individual media sheet from a stack of sheets in the input tray a ...