Abstract: A method for forming a nozzle plate for an ink jet printer by laser ablation wherein topographical features are formed by laser ablation and additional ablation pulses are applied to remove debris from the nozzle plate.

Abstract: An easily transportable ink jet printer apparatus provides a chassis that includes an ink jet print head having nozzles for dispensing ink, the print head being movably mounted to the chassis along the travel path. The chassis also includes a paper output tray movably mounted to the chassis between printing and carrying positions. The print head has a parked position at a selected position along the travel path when not printing in which the nozzles are capped to prevent clogging of the nozzles by dried ink. A locking member is movably mounted to the chassis between carrying and printing positions. The locking member holds the print head in the parked position when moved into the carrying position. The locking member can also be used to lock other components such as paper storage tray, paper exit tray, and cover. The locking member can be a handle with a gripping surface thereon, enabling a user to grasp and lift the handle to a transport position that secures a component or components of the printer (e.g.

Abstract: The invention provides a media sensor adjustment device for maintaining a media sensor in a preselected orientation with respect to print media prior to feeding the print media to a printing position within the printer. The adjustment device includes frame members, a media sensor housing attached to the frame members for holding a media sensor adjacent a media web and means for maintaining the sensor housing in a substantially fixed orientation relative to a media surface so as to maintain an optical surface of the media sensor substantially perpendicular to an optical path extending from the surface of the sensor to a plane defined by the media surface. The sensor adjustment device thus provides a highly reliable means for maintaining a media sensor in its critical optical perpendicularity at a predetermined distance so that reliable media identification can be obtained.

Abstract: A printer having a media path through which a media sheet having a first surface and a second surface is transported. The printer includes a printhead, and a media frame having a base and an extension portion angularly extending upwardly away from the base. The base has a first edge spaced apart from a second edge. The first and second edges are located for contacting the media sheet on the first surface. The extension portion has a support surface for providing support for the media sheet at the first surface. The printer further includes a roller assembly having a roller positioned opposed to the extension portion, the roller engaging the second surface of the media sheet to define a line of contact with the media sheet. The line of contact defined by the roller and the first edge of the base determine a first curvature of the media sheet having a first radius, and the first edge and the second edge determine a second curvature of the media sheet having a second radius.