Hewlett-Packard Development Company, L.p.

Hewlett-Packard Company

Peter Gysling

Bruce J Jackson

Omer Gila

Judson Malcolm Leiser

David K Towner

Michael Plotkin

Thomas Camis

Haim Livne

Craig Breen

David S Vejtasa

Dale Haddon Wolin

Michael H Lee

Paul K Mui

Barry J Oldfield

Tim Mitchell Hoberock

Anthony G Laidlaw

Herbert J Tanzer

David Johannes Pommerenke

Richard G Sevier

Russell A Mendenhall

Larry E Trigg

John A Thompson

Brian S Tsuyuki

Bruce R Johnson

Jon Anson

Mohammad M Bari

Seana Lahey Young

Daniel R Sammartino

Sohrab Vossoughi

Pamela Chew

Gregory Ellis

David Vejtasa

An anamorphic optical element and an adjustment mechanism for selectively rotating the optical element either around an axis substantially in a vertical direction, an axis substantially in an optical axis direction, an axis substantially in a plane formed by the vertical direction and the optical axis direction, or combination of axes thereof is used to vary a vertical separation between two or more spots.

Method and apparatus for controlling multiple beam spacing

Various embodiments are directed to connecting devices that display indicia. A first device displays indicia and affixes to a surface of an object. A second device removable connects to the first device and also displays indicia. The second device is removable from the first device to change which indicia are displayed on the object.

Connecting devices displaying indicia

An ink carrier oil and water are separated from condensate. One embodiment includes first and second chambers for the separation. The first chamber receives the condensate and has an upper discharge outlet and a lower discharge outlet. The second chamber has an inlet connected to the lower outlet and a second chamber outlet below the upper discharge outlet such that separated carrier oil is discharged through the upper outlet. Separated water is discharged through the second chamber outlet. An interface between the separated carrier oil and water extends between the upper discharge outlet and the lower discharge outlet. In another embodiment, the carrier oil includes at least one of a high molecular weight oil, a lubricating oil and a defoamer. An additive having a lower concentration of the at least one of the high molecular weight oil, the lubricating oil and the defoamer is added to the carrier oil.

Condensate separation

A method comprising generating a clear layer on a first surface using a transparent liquid toner, generating a color layer using a pigmented liquid toner over the clear layer on the first surface, and transferring the clear layer and the color layer from the first surface to a substrate is provided.

System and method for transferring features to a substrate

Aspects of the invention relate to hard imaging apparatus charging devices, imaging assemblies, imaging assemblies charging methods, and hard imaging device image bearing member charging methods. In one aspect, a hard imaging apparatus charging device is disclosed. The charging device includes first and second end members, and an intermediate member connecting the first and second end members. The intermediate member may have a length corresponding to an imaging area of the image bearing member of the hard imaging apparatus. The intermediate member may be configured to charge the imaging area used to form latent images on the image bearing member during hard imaging operations of the hard imaging apparatus. The first and second end members of the charging device may be configured to maintain a predetermined spaced charging clearance between the intermediate member and the imaging area of the image bearing member. The first and second end members and the intermediate member of the charging device include a monolithic layer.

Hard imaging apparatus charging devices and hard imaging device charging methods

Aspects of the invention relate to hard imaging device charging systems, liquid electrophotography charging systems, hard imaging apparatuses, and hard imaging device electrophotography charging methods. In one embodiment, a hard imaging device charging system is described. The charging system may include a first charging device configured to charge a respective first region of a cylindrical image bearing member used to form latent images during hard imaging operations of the hard imaging device. The charging system may also include a second charging device configured to charge a respective second region of the cylindrical image bearing member used to form latent images during hard imaging operations of the hard imaging device. The first and second regions may have different radii from a central axis of the cylindrical image bearing member.

Hard imaging device charging systems, electrophotography charging systems, hard imaging apparatuses, and hard imaging device electrophotography charging methods

Systems and methods for protecting electronic devices from electrostatic discharge are provided. A preferred system includes a module configured to be received by an enclosure. The module incorporates an electronic component, such as a memory device, processor, and/or circuit assembly, for example, that is configured to electrically communicate with at least a portion of the enclosure when the module is received by the enclosure. The module also includes a first contact portion that is arranged to contact the enclosure as the module is received by the enclosure. Preferably, the first contact portion is formed, at least partially, of a dissipative material. So configured, when the first contact portion engages the enclosure, an electrostatic charge of the module may be discharged in a controlled manner. Methods also are provided.

Systems with enhanced electrostatic discharge protection

An integrated printer/scanner device includes a housing that supports a scanner module and a printer that are operatively coupled together. In a preferred embodiment, the scanner module is slidably disposed in the housing and formed such that, in a home position, a portion of the scanner module extends beyond the housing. The extending portion includes a control panel thereon for operatively controlling the printer and scanner module. Preferably, the scanner module includes an automatic document feeder (ADF) for receiving documents to be scanned while the module is disposed in the home position. Additionally, the scanner module is configured such that the ADF automatically opens when the scanner module is slid out to its extended position.

Integrated printer and scanner device

A system for providing a hard copy machine with a variety of cut sheet media trays having differing sheet stack capacities is demonstrated. A tray selector mechanism is provided in the media tray docking bay of the hard copy machine. Each tray is provided with sheet separating and picking devices and an interface coupling for engaging the tray devices to the tray selector mechanism. In the exemplary embodiment, a full height tray, that is one which occupies the entire docking bay, allows a maximum capacity of a single media type to be loaded for use in making hard copies. A number of smaller, lesser capacity trays can be substituted for the full height tray in the docking bay, each having a different media type. The tray selector mechanism is then operative to select between the lesser capacity trays on end user demand. A default position of the tray selector mechanism is provided.

Media feed mechanism with adaptable media tray apparatus

A device for pre-picking a top sheet of media from a stack is disclosed. A biased friction pad is mounted on a D-shaped pick roller mechanism to engage the top sheet with a lighter force than that which follows when a similar friction pad on the D-shaped pick roller mechanism engages the sheet. Multiple sheet pick problems inherent with use of only a D-shaped pick roller mechanism are alleviated.

Hard copy sheet media pick mechanism

A printer includes an opening in communication with a tray receptacle for receiving a paper tray. The printer further includes a pick roller assembly; a separator shaft including a first separator roll; an arm structure connecting the pick roller assembly to the separator shaft and enabling a pick action to be imparted to the pick roller assembly; and a feed roller coupled to the separator shaft. A removable media tray is positioned in the tray receptacle, holds a stack of paper sheets and includes a second separator roll and a gear that couples the second separator roll to the separator shaft. A controller causes (i) a rotation of the separator shaft and separator roll in a first direction to enable a paper pick action and to simultaneously rotate the second separator roll to enable a paper sheet separation action, and (ii) a rotation of the separator shaft in a second direction to disable the pick action and to rotate the feed roll to accomplish a paper feed.

Cut sheet pick and feed mechanism with active sheet separation device

A duplexing image forming device which selectively directs printed pages back onto the original paper supply, flipped over with respect to the page's original position and swapping the leading edge for the trailing edge, for printing on a second side. The formatter in the image forming device then instructs the printer engine to print the second side of the page and reverses the order of data supplied to the print engine. A paper diverter is installed at the output of the fuser mechanism in the print engine. The diverter selectively diverts paper from the standard output path into a vertical gravity reversing slot through three reversing rollers. The paper is fed from the diverter up through the nip between the single driven reversing roller and an idler reversing roller. The driven reversing roller pushes the paper up into the vertical gravity reversing slot. As the trailing edge of the paper exits the nip between the driven reversing roller and the first idler roller, the trailing edge is carried by the driven reversing roller up and over that roller into the nip between the second idler reversing roller and the driven reversing roller. The driven reversing roller then forces the new leading edge of the paper through a duplexing channel where a duplex paper drive mechanism directs the paper onto the top of the existing paper supply tray.

Printing device duplexing mechanism and method therefor

A multi-size paper cassette for a printer, such as an electrophotographic or laser jet printer and having a cassette housing which is adapted to receive a back wall and paper receiving shelf in slidable engagement with housing side walls during paper size adjustment and loading of paper into the cassette. A cammed shaft member having a predefined contoured slot therein is pivotally mounted on one of the upstanding side walls of the cassette housing and has an end face aligned with a plurality of indicia marked openinging in a front wall of the cassette housing. The cammed shaft member is operative to receive a driver pin within its contoured slot, and the driver pin and adjoining paper receiving shelf are driven backward and forward in the cassette during paper size adjustment and paper loading. During this operation, the horiozntal motion of the driver pin in the slot during a paper size setting produces a pivotal rotation of the cammed shaft member and moves the end face thereof vertically to a desired one of the paper size indicia marked openings on the front wall of the cassette. The cassette further includes paper width adjustment member which is mounted in another contoured slot within the paper receiving shelf extending from the movable back wall, and this paper width adjustment member moves perpendicular to the edge of the paper as the shelf slides along the floor of the cassette. In this operation, the adjustment member comes to rest at the correct paper width and corresponding to the correct paper length visual indication on the cassette front wall.

Growing community of inventors

New Plymouth, ID, United States of America

Peter Gysling