Fuji Xerox Co., Ltd.

E Ink Corporation

Taijyu Gan

Haruo Harada

Hiroshi Arisawa

Yasunori Okano

Chisato Urano

Takashi Morikawa

Atsushi Hirano

Makoto Gomyo

Toshihiko Suzuki

Yoshinori Machida

Yasufumi Suwabe

Naoki Hiji

Ryota Mizutani

Tomozumi Uesaka

Makoto Gomyou

Masahiro Sato

Chikara Manabe

Hiroaki Moriyama

Yasuhiro Yamaguchi

Takeo Kakinuma

Nami Tokunaga

A image display medium driving device includes a voltage application unit that applies a voltage between a pair of substrates, at least one of which is transparent, of an image display medium including plural types of particles which are sealed between the pair of substrates, are attached to the substrates, and start to be separated from the substrates at different times when a predetermined voltage is applied and a control unit that controls the voltage application unit such that a time when the voltage is applied between the pair of substrates varies depending on image information.

Image display medium driving device, image display apparatus, driving program, and computer-readable medium

An image forming apparatus includes a voltage applying unit that applies a bias voltage for enabling a transfer unit to transfer a developer layer to a transfer medium, the developer layer being retained by an image carrier in accordance with image information; a measuring unit that measures a surface potential of the developer layer; and a setting unit that sets a value of the bias voltage to be applied by the voltage applying unit in accordance with the surface potential measured by the measuring unit, a combined electrostatic capacitance of a surface layer of the image carrier and the developer layer, and an electrostatic capacitance specific to the transfer medium.

Image forming apparatus

Provided is an image forming apparatus including a first holding member that is rotated and holds a liquid developer including a volatile carrier liquid, a first cleaning member that is able to come into contact with or separated from the first holding member and cleans a surface of the first holding member by being in contact with the first holding member, a supplying device that supplies a volatile washing liquid to the first holding member at an upstream side of the first cleaning member in a rotation direction of the first holding member, and a switching mechanism that switches a first state in which the first cleaning member is in contact with the first holding member that is rotated to a second state in which the first cleaning member is separated from the first holding member that is rotated to apply the washing liquid to the first holding member.

Image forming apparatus and cleaning method

A particle dispersion and the display devices in which the dispersion may be incorporated are provided. The particle dispersion includes a dispersion medium, one or more types of particle groups that are dispersed in the dispersion medium that may differ based on color and/or charge, and counter-ions oppositely charged than the one or more particle groups. The particle groups and counter-ions are moved in the dispersion medium according to an electric field formed in the dispersion medium. The one or more types of particle groups are configured such that the total amount of charges of one type of particle group (a) among the one or more types of particle groups is greater than a total amount of charges of the counter-ions that are charged with a polarity opposite to that of the particle group (a).

Particle dispersion for display, display medium, and display device

A liquid supply device includes a rotating supply member that holds a liquid developer in concave portions formed on an outer peripheral surface, and supplies the liquid developer to a target supply member, a regulating member that regulates a liquid developer holding amount of the outer peripheral surface of the rotating supply member by contacting with the outer peripheral surface of the rotating supply member, and a movement unit that moves the regulating member to a retract position which is separated from the outer peripheral surface of the rotating supply member.

Liquid supply device, developing device, and image forming apparatus

A writing apparatus includes: a voltage application unit that applies a voltage to a display medium whose display changes according to an irradiation of light and an applied voltage; an optical output unit that irradiates light toward the display medium; and a controller that (i) receives a position signal that has been output from an apparatus upon contact with an input device, the position signal indicating a position of the contact with the input device, (ii) specifies, based on the received position signal, a position on the display medium at which a display is to be changed, and (iii) controls the optical output unit so that light is irradiated toward the specified position on the display medium for a predetermined time period.

Writing apparatus

A method for driving a light modulation element includes: applying light to the light modulation element in accordance with an image to be displayed on the light modulation element while applying a DC voltage between a pair of electrode layers of the light modulation element; and applying a pulse voltage having an opposite polarity to the DC voltage applied so far between the pair of electrode layers with the light being applied, and terminating the applying of the light when the applying of the pulse voltage is terminated. The applying of the light, the applying of the pulse voltage and the terminating of the applying of the light are executed sequentially.

Light modulation element, driving method and drive apparatus

A writing device includes: a voltage application unit that applies a voltage to a display medium including a first display layer, second display layer and a photoconductive layer; a first obtaining unit that obtains image data showing an original image; a controller that controls the voltage application unit and the irradiating unit to cause the display medium to show an overlapped image including the obtained original image and an overwritten image overwritten on the original image, the overwritten image including a point corresponding to the location shown by the location information stored in the storage unit.

Writing device and image display apparatus

An optical recording display medium comprises: a display layer whose display changes according to an applied voltage; a photoconductive layer that is provided opposing the display layer and changes a voltage applied to the display layer according to irradiated light; and a selective transmission layer that is provided on a light path to where light irradiated toward the photoconductive layer arrives at the photoconductive layer, and whose transmissivity with respect to the irradiated light increases as an intensity of the irradiated light increases.

Optical recording display medium and recording apparatus

A recording device includes: a voltage application unit that applies a voltage exceeding a first threshold value to a display medium; a photosensitive layer in which an impedance changes depending on an irradiated light; and a light irradiation unit that irradiates light of a first intensity that changes the impedance of the display medium at the approximately same time as when the voltage is applied by the voltage application unit and, and when the voltage is no longer applied by the voltage application unit, irradiates light that has a second intensity lower than the first intensity and that damps the residual voltage to the second threshold value or below within a length of time equal to or less than the third threshold value.

Recording device, recording apparatus, and recording method comprising liquid crystals and a photosensitive layer in which an impedance changes depending on an irradiated light

A writing device includes: a display medium including: a first display layer; a second display layer stacked on the first display layer; a first conductive layer and a second conductive layer sandwiching the first display layer and the second display layer; and a photosensitive layer located between the first conductive layer and the second conductive layer; a voltage-applying unit that applies a bias voltage to the first conductive layer and the second conductive layer, a frequency of the bias voltage differing between a case in which a state of the first display layer and a state of the second display layer are changed simultaneously, and a case in which a state of the first display layer and a state of the second display layer are changed separately; and a light outputting unit that irradiates light to the display medium.

Writing device

A driving method of a stacked light modulating device for recording an image therein, which includes selective reflection layers each having a cholesteric liquid crystal, reflecting light with different wavelengths within a visible range, and being different in a lower threshold value of texture change from a planar to a focal conic texture with respect to an externally applied voltage and an upper threshold value of texture change from the focal conic to a homeotropic texture, and a pair of electrodes disposed outside, includes applying between the pair of electrodes voltages including a voltage Vand have a same frequency, to select an area exceeding or not exceeding the upper threshold value in each of the selective reflection layers, and applying voltages including a voltage Vand have a same frequency different from the voltage V, to select an area exceeding or not exceeding the lower threshold value.

Driving method of stacked light modulating device, and driving device of stacked light modulating device

A method for driving a liquid crystal device to record an image on the liquid crystal device is provided. The liquid crystal device has: a pair of electrodes; and a liquid crystal layer of cholestric liquid crystal sandwiched between the pair of electrodes. The method includes: applying a voltage Vhigher than a threshold value of a phase change to the homeotropic phase to make the liquid crystal layer to be in a homeotoropic phase; applying selectively two voltages VH and VL higher than the voltage Vto each portion of the liquid crystal layer; and applying a voltage Vunder a condition of such a magnification and application time that a portion to which the voltage VH has been applied changes to a planar phase and a portion to which the voltage VL has been applied changes to a focal conic phase.

Method apparatus for driving liquid crystal device and apparatus for driving liquid crystal device

A laminated body comprises: a particle dispersion layer comprising a first material and particles dispersed in the first material, the first material being changed from a gel state to a sol state upon increase in temperature; and a coated layer comprising a second material, the second material is changed from a gel state to a sol state upon increase in temperature, is changed from a gel state to a sol state upon decrease in temperature, and shows a hysteresis behavior in sol-gel change upon change in temperature, wherein the particle dispersion layer in a sol state and the coated layer in a gel state are laminated in contact with each other, and in a state where each of the particle dispersion layer and the coated layer contains a solvent, a maximum temperature Twhere the first material maintains a gel state is less than a maximum temperature Twhere the second material maintains a gel state upon increase in temperature (T&#x3c;T).

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Kanagawa, Japan

Taijyu Gan