Abstract: An imager includes an ion-emitting unit and a conveying structure to move a passive e-paper display medium in a first orientation along a travel path and to releasably support the display medium in spaced relation to receive airborne ions from the ion-emitting unit for imaging operations.

Abstract: One example includes a display device. The display device includes an electronic paper display imageable by receiving charges on an imaging surface of the electronic paper display. The display device includes an embedded chip to enable writing to the electronic paper display based on a successful authentication.

Abstract: A display device includes an electronic paper display, a ground electrode, and a first contact. The electronic paper display is imagable by receiving charges on an imaging surface of the electronic paper display. The ground electrode is opposite to the imaging surface of the electronic paper display. The first contact is on a surface of the display device and electrically coupled to a first side of the ground electrode.

Abstract: An imaging device for a passive e-paper display includes an erasing head to emit ions in a first polarity followed by an opposite second polarity after a first time period. The passive e-paper display is mountable on a support in a spaced apart relationship relative to the erasing head and by which the emitted ions are receivable onto substantially the entire surface of the passive e-paper display. Relative movement occurs between the support and the erasing head at least some of the time during the emission of ions from the erasing head.

Abstract: A media includes a frame and an e-paper display recessed relative to a portion of the frame.

Abstract: In one example, a method for calibrating a position of a charge roller is described. The method may include a processor positioning a first end of a charge roller to a first plurality of index positions, determining a capacitance between the charge roller and a photoconductor imaging plate at each of the first plurality of index positions, determining a first index position of the first plurality of index positions with a greatest change in capacitance, and calibrating a position of the charge roller based upon the first index position.

Abstract: A charge-receiving layer for an e-paper assembly includes a plurality of conductive paths spaced apart throughout an insulative matrix, with each conductive path including at least one elongate pattern of conductive particles.

Abstract: An e-paper imaging system includes a writing unit and a support surface to support a passive e-paper media in a position spaced apart from the writing unit. The writing unit includes a charge generator and an electrode array. The electrode array includes addressable holes to control charges flowing to the support surface.

Abstract: An e-paper imaging system includes a writing unit and a support surface to support a passive e-paper media in a position spaced apart from the writing unit. The writing unit includes a charge generator and an electrode array. The electrode array includes addressable holes to control charges flowing to the support surface.

Abstract: One example of a mobile imaging device includes a single ion source, a ground connector, and an interface. The single ion source is to erase and write to an electronic paper display by depositing charges onto an imaging surface of the electronic paper display as the imaging device and the electronic paper display are moved relative to each other. The electronic paper display includes a ground return path. The ground connector maintains an electrical connection to the ground return path as the imaging device and the electronic paper display are moved relative to each other during erasing or writing to the electronic paper display. The interface is for transferring data between the imaging device and a computing device.

Abstract: In one example, a method for calibrating a position of a charge roller is described. The method may include a processor positioning a first end of a charge roller to a first plurality of index positions, determining a capacitance between the charge roller and a photoconductor imaging plate at each of the first plurality of index positions, determining a first index position of the first plurality of index positions with a greatest change in capacitance, and calibrating a position of the charge roller based upon the first index position.

Abstract: A media includes at least one passive e-paper display. The display has a first side and an opposite, second side, with the display defining an image-bearing surface that is generally co-extensive with substantially the entire first side.

Abstract: One example of a mobile Imaging device includes a single ion source, a ground connector, and an interface. The single ion source is to erase and write to an electronic paper display by depositing charges onto an imaging surface of the electronic paper display as the imaging device and the electronic paper display are moved relative to each other. The electronic paper display includes a ground return path. The ground connector maintains an electrical connection to the ground return path as the imaging device and the electronic paper display are moved relative to each other during erasing or writing to the electronic paper display. The interface is for transferring data between the imaging device and a computing devise.

Abstract: An ion writing unit includes an ion generator and an array of electrode nozzles aligned to receive and guide generated ions. An air flow source causes an air flow adjacent the ion generator or in an orientation adjacent the electrode nozzles.

Abstract: An e-paper imaging system includes a writing unit and a support surface to support a passive e-paper media in a position spaced apart from the writing unit. The writing unit includes a charge generator and an electrode array. The electrode array includes addressable holes to control charges flowing to the support surface.

Abstract: In one example, a method for calibrating a position of a charge roller is described. The method may include a processor positioning a first end of a charge roller to a first plurality of index positions, determining a capacitance between the charge roller and a photoconductor imaging plate at each of the first plurality of index positions, determining a first index position of the first plurality of index positions with a greatest change in capacitance, and calibrating a position of the charge roller based upon the first index position.

Abstract: An imaging device for a passive e-paper display includes an erasing head to emit ions in a first polarity followed by an opposite second polarity after a first time period. The passive e-paper display is mountable on a support in a spaced apart relationship relative to the erasing head and by which the emitted ions are receivable onto substantially the entire surface of the passive e-paper display. Relative movement occurs between the support and the erasing head at least some of the time during the emission of ions from the erasing head.

Abstract: A belt drive includes a belt and at least one pair of spaced apart rails extending in a first direction and defining a gap. The belt is aligned with the gap and to be driven in an endless loop with the belt including a first movable portion external to the gap on a first side of the rails and a second movable portion biased to be recessed within the gap on an opposite second side of the rails. A rewritable display medium is releasably engageable in a sandwiched position between a slidable contact surface of the rails and a first segment of the second movable portion external to the gap to move the display medium in the first direction for contact-less imaging via a unit spaced from the rails.

Abstract: An imager includes an ion-emitting unit and a conveying structure to move a passive e-paper display medium in a first orientation along a travel path and to releasably support the display medium in spaced relation to receive airborne ions from the ion-emitting unit for imaging operations.

Abstract: An ion writing unit includes a housing, an electrode assembly, and a heating mechanism. The housing includes a chamber at least partially containing an ion generator. The electrode assembly includes an array of electrode nozzles on one exposed exterior surface of the housing and aligned to receive and guide generated ions. The heating mechanism applies heat to at least one of the chamber and at least a portion of the array of electrode nozzles.