Hewlett-packard Development Company, L.P.

Juan D Ramos

Keith Jariabka

Kieran B Kelly

Robert Lawrence Winburne

Peter James Boucher, Sr

Wesley R Schalk

Allan G Olson

Raymond C Sherman

John James Cantrell

Michael Ewe

Jeremy Daniel Barker

Example implementations relate to print media rollers. For example, implementations can include a device that includes a first roller to receive print media, a first sensor to determine when a leading edge of the print media is at a first location, a second roller to be activated based on a type of the print media and when the leading edge of the print media interacts with the first sensor, a second sensor to determine when the leading edge of the print media is at a second location, wherein the first roller is deactivated based on when the leading edge of the print media interacts with the second sensor.

Print media rollers

An example method for picking a media sheet from a media tray, the method comprising: controlling a media picker to perform a pick procedure to pick the media sheet from the media tray; upon detecting an error condition in the pick procedure, translating the media sheet in a direction within a plane of the media sheet; and controlling the media picker to retry the pick procedure to pick the media sheet from the media tray.

Picking media sheets from media trays with retries

In some examples, the disclosure describes a device that includes a first media tray positioned at a media input of a pick and separation mechanism, a second media tray positioned at the media input of the pick and separation mechanism, a media scan guide to position a sheet of print media at the media input of the pick and separation mechanism, a shared media path comprising a turn roller to receive the sheet of print media from the pick and separation mechanism from a first direction and provide the sheet of print media to a print zone in a second direction, and an output zone to receive the sheet of print media from the shared media path.

Shared media paths

In one example, a photo cassette for a mobile printer includes a support surface to support a stack of photo media sheets, a cover to at least partially cover the stack of photo media sheets, and a window formed in the cover to receive a pinch mechanism of the mobile printer through the window to provide a normal force to the stack of photo media sheets.

Photo cassette for a mobile printer

Embodiments provide methods, apparatuses, and systems for compressing media in a media stack. In various embodiments, a paddle moves between various positions. During the move, the paddle is configured to compress the media stack.

Media stack compression

In one embodiment, a device for moving print media in a printer includes: a rotatable shaft extending lengthwise along an axis of rotation and a hub. The hub is operatively and pivotally connected to the shaft at a connection such that the hub rotates with the shaft about the axis of rotation and so that the hub may tilt on the shaft relative to the axis of rotation. The device also includes a pick tire or other feature on the hub on each side of the connection to move print media when the shaft rotates the hub. In another embodiment, a method for moving print media in a printer includes: applying a force to a sheet of print media at two locations spaced apart across the sheet; and, simultaneously with the act of applying, equalizing the force applied at the two locations.

Moving print media in a printer

Media stack compression with paddle

Various media drive and methods move a media drive member relative to a medium.

Media drive

In one embodiment, a sheet media input structure includes a sheet supporting surface, a movable pad downstream from the supporting surface, and a pair of stationary pads downstream from the supporting surface at a location where the stationary pads impede a leading edge of sheets fed from a stack of sheets supported by the supporting surface. The movable pad is movable between a first position in which the movable pad impedes a leading edge of sheets fed from the stack and a second position in which the movable pad does not impede the leading edge of sheets fed from the stack.

Growing community of inventors

Vancouver, WA, United States of America

Juan D Ramos