Xerox Corporation

John H Steele

Ali Rafic Dergham

Thomas C Hollar

Virgil Joseph Hull

Karl B Ayash

David N Redden

Lowell W Knapp

James S Celebi

Richard B Dingwall

Mark A Adiletta

Jonathan Byron Hunter

Andrew Charles LaRocca

Armando J Rivera

An apparatus for developing a latent image recorded on a movable imaging surface, including: a reservoir for storing a supply of developer material including toner particles, the reservoir including a developer material mixing and transport area; a donor member being arranged to receive toner particles from the reservoir and to deliver toner particles to the image surface at locations spaced apart from each other in the direction of movement of the imaging surface thereby to develop the latent image thereon; and a climate system, associated with the reservoir, for maintaining the supply of developer material at a predefined temperature, the climate system includes a cooling element for supplying cool air to the developer material mixing and transport area, and a heating element positioned within air path for heating air to predefined temperature.

Heating system for a developer housing

A method and apparatus are provided to control the atmosphere inside of a xerographic control module of an image forming device so that a dew point condition is not reached. The parameters of the atmosphere within the xerographic chamber which are controlled include pressure, temperature and humidity.

Method and apparatus for controlling humidity in a copying device

A liquid crystal display unit is provided which includes a primary, image-defining display and a secondary display, arranged in series with the primary display. The primary and secondary displays have equal numbers of light shutters, similarly sized and located on each display, so that when the corresponding light shutters on the primary and secondary displays are closed, substantially no light passes through the viewing side of the primary display. An opaque mask is formed on the input side of the primary display to define the shape of the image elements to be displayed. This mask covers the edges of the primary display light shutters to define the image elements display. This mask permits the primary and secondary displays to be easily aligned with each other. Color patches can be located on the light input side of the primary display light shutters so that the viewed images are in color. The use of the opaque mask to form the image elements eliminates the need to form precisely shaped color patches. Since and the mask blocks all light between light shutters, a display is provided having a true dead front. The true dead front display permits colored text displays using mimic-type electrodes to be produced. Since the secondary displays need not perform as well as the primary displays, displays which are not suitable for use as primary displays can be used as the secondary displays.

Color liquid crystal display with dead front appearance having opaque

A liquid crystal display unit is provided which includes a primary, image-defining display and a secondary display, arranged in series with the primary display. The primary and secondary displays have equal numbers of light shutters, similarly sized and located on each display, so that when the primary and secondary displays are placed in series their respective light shutters are also in series. When corresponding light shutters on the primary and secondary displays are closed, substantially no light passes through the displays to the opposite side of the primary display. An opaque mask is formed on the input side of the primary display to define the shape of the image elements to be displayed. This mask covers the edges of the primary display light shutters to define the image elements such that each light shutter on the secondary display is larger in size than its corresponding image element on the primary display. This permits the primary and secondary displays to be easily aligned with each other. Color patches can be located on the light input side of the primary display light shutters so that the viewed images are in color. The use of the opaque mask to form the image elements eliminates the need to form precisely shaped color patches. Since no light leaks through the light shutter pairs when switched off, and the mask blocks all light between light shutters, a display is provided having a true dead front. The true dead front display permits colored text displays using mimic-type electrodes to be produced. Since the secondary displays need not perform as well as the primary displays, displays which are not suitable for use as primary displays can be used as the secondary displays.

Method of making color liquid crystal display with dead front appearance

Growing community of inventors

Spencerport, NY, United States of America

John H Steele