摘要:
A method and apparatus for determining the properties of roughness and thickness of a substrate to be processed through a machine, and correspondingly adjusting those machine parameters that are affected and which can be optimized based on varying levels of these substrate properties.
摘要:
An apparatus for developing an electrostatic latent image with liquid developing material. The apparatus includes a liquid developing material applicator, wherein a single piece housing fabricated from a non-conductive material is provided for defining an elongated aperture adapted for transporting liquid developing material into contact with the image on the surface of a photoreceptive member, the housing further including a planar surface adjacent the elongated aperture for providing a liquid developing material application region in which the liquid developing material can flow freely in contact with the photoreceptive member. A developing roll situated adjacent to and downstream from the liquid developing material is also provided for for attracting the liquid developing material to image areas of the electrostatic latent image.
摘要:
A non-black colored toner DMA sensor arrangement includes a light emitting device for illuminating a toner/surface substrate with light of a wavelength to which colored toners are non-absorbing, and to which the imaging surface is either partially absorbing or transmissive. Light is reflected from the toner predominantly by either scattering or multiple reflections to produce a significant component of diffusely reflected light. A sensor is arranged for detection of the diffusely reflected light, at an angle that does not detect the specularly reflected component of reflected light. An increasing level of diffusely reflected light indicates an increased density of toner coverage per unit area.
摘要:
A development station that improves toner halftone dot development over a wide range of environmental conditions includes a developer housing for retaining semi-conductive carrier particles and toner particles, a first magnetic roll having a stationary core with at least one magnet and a sleeve having longitudinal grooves that rotates about the stationary core of the first magnetic roll, a second magnetic roll having a stationary core with at least one magnet and a sleeve having longitudinal grooves that rotates about the stationary core of the second magnetic roll, an environmental sensor for generating an environmental condition signal, a variable voltage supply coupled to the first magnetic roll and the second magnetic roll, and a control circuit for adjusting an output level for the variable voltage supply.
摘要:
An apparatus for removing charged particles from a surface, the surface being capable of movement, including: a conductive brush in contact with the surface, the conductive brush having a first region thereof having a first polarity and a second region having a second polarity; the conductive brush includes a core and conductive fibers attached thereto, the core being electrically segmented into the first region and the second region.
摘要:
The present invention provides an apparatus for forming a uniform layer of liquid developer which apparatus includes, for example, a coater for depositing liquid developer on a first movable substrate to form a first toner layer; a second movable substrate for contacting the first toner layer on the first substrate to form a uniformly thin second toner layer on the first substrate, wherein the directional movement of the first movable substrate surface is contrary to the directional movement of the second movable substrate surface, and wherein at least one of the first substrate surface and the second substrate surface conforms to an opposing surface; and a photoactive member for receipt and formation of latent image thereon and for receipt of a toner layer for development of the latent image by the toner layer.
摘要:
An imaging system for effecting electrostatic printing of an image, wherein the imaging system includes at least one contact electrostatic printing engine operable in a novel fashion upon a copy substrate, for imaging and development of an electrostatic latent image representative of the image, and subsequently transfers the developed image to the copy substrate. A toner cake delivery apparatus provides a thin, uniform toner cake layer of high solids content to a suitable receiving member for subsequent pressure contact with the surface of a latent image bearing imaging member such that a developed image is created by separating and selectively transferring portions of the toner cake layer in correspondence with the image and non-image regions of the latent image.
摘要:
Disclosed is a process for forming images which comprises generating an electrostatic image on an imaging member, developing the electrostatic image with a toner, optionally transferring the developed toner image from the imaging member to a substrate, applying to the developed toner image a curable liquid in which the toner is at least partially soluble, and curing the liquid to a solid.