Hewlett-packard Development Company, L.p.

Kok Chai Chong

Seng San Koh

Chun Long Goh

Pui Wen Huang

Qian Tao

Ah Chong Tee

Wei Lit Teoh

Hua Zhou

Nick Su

Tong Nam Samuel Low

Kok Weng Chan

Ban Ho Chong

Jun Hong Goh

Wee Hien Tok

Aiqiang Yang

Sook Shin Chang

Suriyaprakash Saravanan

Tao Long

Hwee Boon Tan

Fei Yuan Louisa Koh

Ketut Sulistyawati

Mylene A K Tjin Wong Joe

Keng Aik Alan Boo

Chee Tee Tang

A print media detection apparatus may include a movable scanner bar for scanning media, a feeder tray for supplying the print media, a print media indicator and a controller. The print media indicator may include a first portion to interact with the print media within the feeder tray and a second portion coupled to the first portion to move in response to movement of the first portion. The scanner bar is to sense the second portion of the media indicator. The controller is to determine a characteristic of the print media within the feeder tray based upon sensing of the second portion by the scanner bar.

Print media detection with scanner bar

Examples relating to determining stack height in imaging devices are described herein. According to one example, an imaging device includes an input roller assembly to transport a print medium towards an image-forming assembly of the imaging device. The input roller assembly can include a pinch roller for drawing the print medium from a media stack. The imaging device further includes a pressure plate movably coupled to a body portion of the imaging device and biased towards the pinch roller. The pressure plate may hold the media stack between itself and the pinch roller and is movable by a first distance from a neutral position when the media stack is there between. The first distance is measured from a fixed point to a measurement region on the pressure plate and can indicate an instantaneous stack height of the media stack.

Stack height in imaging devices

A spring kicker element for a kicker unit within a print device is described. In one example, the spring kicker element is fitted onto the kicker unit. The spring kicker element comprises a planar extension extending radially from its base portion, such that when fitted, the planar extension extends away from the kicker unit.

Spring kicker element

A method for fluid-density modulated auto-duplexing is disclosed. This method determines when a final swath of a printing operation on a surface of a media occurs within a predefined distal end portion of the media. An estimated media dry time after the final swath in the predefined distal end portion is determined to be greater than a predetermined time. The estimated dry time is capped to a predetermined minimum media dry time and a course of action for a feed mechanism is selected to reduce curling and cockling of the media. Furthermore, a non-transitory computer readable medium and a printer having fluid-density modulated auto-duplexing are also disclosed.

Density modulated auto-duplexing

A printer includes a print zone, and a media output guide assembly downstream of the print zone to curve media between media side edges. The media output guide assembly includes: an inner guide; and a pair of outer guides, the media to pass between the inner guide and the outer guides with the inner guide above the media and the outer guides below the media. The media passing between the guides has, in a direction perpendicular to a media output direction, outer edges that droop around and below a top of the outer guides, elevated points at the tops of the outer guides and a central low point under the inner guide and between the outer edges.

Media output guide assembly

A printer is disclosed. The printer determines the width of media to be printed on. When the width of the media is below a threshold the printer prints using multiple printing passes where the amount of ink is divided between the multiple printing passes with a first distribution. When the width of the media is not below the threshold the printer prints using multiple printing passes where the amount of ink is divided between the multiple printing passes with a second, different distribution.

Printer with ink control

Multi-function imaging and printing device

Printer

A kicker system comprises a rotatable roller for advancing media along a media path toward a print zone. A kicker is mounted on the roller for pivotal movement transverse to the rotational axis of the roller. A cam surface configured to engage the kicker during a portion of a rotation of the roller to thereby pivotably retract the kicker out of the media path. The kicker can be selectively actuated by controlling the relative rotation of the roller and the cam surface.

Active media kicker system

Growing community of inventors

Singapore, Singapore

Kok Chai Chong