A resettable fire detection device comprises in combination a rate of temperature rise sensor, an electronic fixed temperature sensor, and electronic circuitry connected to both circuits for producing an alarm signal if either sensor is activated and for maintaining the alarm signal once the device has been activated. This resettable fire detection device has many uses: specifically, it can be used as a replacement device for a smoke detector device commonly used on ships. In this case, the devi...

An auto hinting module defines typographically relevant control points and relative offset constraints for use in composite character generation. Control points in one or more dimensions are defined for each glyph component. The control points may be represented as control points on the outline of the component glyphs, although control points may also be represented by control points positioned relative to the outlines, control lines (e.g., vertical, horizontal, diagonal, etc.) that intersect th...

Stroke contrast is preserved for a range of font sizes and display resolutions using programmatic constraints or "hints". One implementation of a "font hinting" approach enforces a regularization of stroke weights such that stroke contrast is preserved for font sizes and display resolutions sufficient to render it. Font hinting instructions determine a stroke contrast threshold, which may be used to decide whether to preserve or omit stroke contrast when rendering the glyph. In one implementatio...

A detoning roll having a ceramic outer coating for removing residual toner particles from a cleaning reproduction machine. The ceramic outer coating consists essentially of a suitable mixture of alumina and titania by weight giving the detoning roll a desired resistivity within a range of 2.8.times.10.sup.7 -2.10.times.10.sup.9 (Ohm-cm), a discharge time constant of greater than 600 microseconds, and a dielectric constant within a range of 12-24 at 100 KHz.

A thermal ink jet printer including a frame, a printhead mounted to the frame for printing ink images onto a heated and supported substrate, and a wear resistant and efficient substrate heating and supporting assembly mounted to the frame. The wear resistant and efficient substrate heating and supporting assembly includes metallic core having an inner surface and an outer surface, a heating device for heating the inner surface of the metallic core, and a ceramic aluminum nitride or aluminum oxid...

An electronic module that includes a housing and electronics that has a divider (215) that is substantially conductive, rectangular, and planar. The divider (215) is hingeably coupled to the housing with hinges (225). The divider (215) defines an upper section (210) and a lower section (205) within the housing, wherein the divider (215), in an open position, allows access to electronics (223) within the lower section (205), and the divider (215), in a closed position, allows access to electronic...

A method of manufacturing a donor roll having a plurality of electrodes on the surface of the roll is provided. The roll is for use in developing a latent image. The method includes providing a substantially cylindrical member and covering at least a portion of the surface of the member tangentially with a screen. The screen has an aperture therein. The method further includes urging a conductive material through at least a portion of the aperture and onto the surface of the member to form at le...

The principles of the present invention relate to iteratively solving constraints in a font-hinting language. A computing system accesses a more complex constraint that can not be natively expressed based on the vocabulary of the font-hinting language, the more complex constraint constraining at least a portion of the outline. The computing system decomposes the more complex constraint into a plurality of simpler constraints that can be natively expressed based on the vocabulary of the font-hint...

A process including providing a hollow imaging drum having a first end, a second end, an outside surface, an inside surface and coating material on both the inside surface and the outside surface at at least the first end, simultaneously contacting the coating material on both the inside surface and the outside surface at the first end of the drum with resilient foam material, flowing liquid solvent for the coating material to the foam material where the foam material contacts the first end of t...

The principles of the present invention relate to iteratively solving constraints in a font-hinting language. A computing system accesses a more complex constraint that can not be natively expressed based on the vocabulary of the font-hinting language, the more complex constraint constraining at least a portion of the outline. The computing system decomposes the more complex constraint into a plurality of simpler constraints that can be natively expressed based on the vocabulary of the font-hint...