摘要:
Disclosed is a toner comprising particles of a polyester resin, an optional colorant, and poly(3,4-ethylenedioxythiophene), wherein said toner particles are prepared by an emulsion aggregation process. Another embodiment of the present invention is directed to a process which comprises (a) generating an electrostatic latent image on an imaging member, and (b) developing the latent image by contacting the imaging member with charged toner particles comprising a polyester resin, an optional colorant, and poly(3,4-ethylenedioxythiophene), wherein said toner particles are prepared by an emulsion aggregation process.
摘要:
Disclosed is a toner comprising particles of a resin and an optional colorant, said toner particles having coated thereon a polythiophene. Another embodiment of the present invention is directed to a process which comprises (a) generating an electrostatic latent image on an imaging member, and (b) developing the latent image by contacting the imaging member with charged toner particles comprising a resin and an optional colorant, said toner particles having coated thereon a polythiophene.
摘要:
Disclosed is a toner comprising particles of a resin and an optional colorant, said toner particles having coated thereon a polypyrrole. Another embodiment of the present invention is directed to a process which comprises (a) generating an electrostatic latent image on an imaging member, and (b) developing the latent, image by contacting the imaging member with charged toner particles comprising a resin and an optional colorant, said toner particles having coated thereon a polypyrrole.
摘要:
Disclosed is a toner comprising particles of a polyester resin, an optional colorant, and poly(3,4-ethylenedioxypyrrole), wherein said toner particles are prepared by an emulsion aggregation process. Another embodiment of the present invention is directed to a process which comprises (a) generating an electrostatic latent image on an imaging member, and (b) developing the latent image by contacting the imaging member with charged toner particles comprising a polyester resin, an optional colorant, and poly(3,4-ethylenedioxypyrrole), wherein said toner particles are prepared by an emulsion aggregation process.
摘要:
A method of developing a latent image recorded or an image receiving member with marking particles, to form a developed image, including the steps of moving the surface of the image receiving member at a predetermined process speed; storing a supply of developer material including conductive toner in a reservoir; transporting developer material on a donor member to a development zone adjacent the image receiving member; and; inductive charging the toner layer onto the outer surface of the donor member prior to the development zone to a predefined charge level.
摘要:
A marking apparatus is disclosed in which a propellant stream is passed through a channel and directed toward a substrate. A liquid marking material, such as ink, is controllably introduced into the propellant stream and imparted with sufficient kinetic energy thereby to be made incident upon a substrate. A multiplicity of channels for directing the propellant and marking material allow for high throughput, high resolution marking. Multiple marking materials may be introduced into the channel and mixed therein prior to being made incident on the substrate, or mixed or superimposed on the substrate without registration. One example is a single-pass, full-color printer.
摘要:
An acoustic scavengeless assist (ASA) development apparatus, and a multicolor image reproduction machine including such a development apparatus. The (ASA) development apparatus includes a biased vibratory section having a piezoelectric member and a donor member, as well as, a development electrode section, for presenting toner particles to latent electrostatic images for image development. The donor member is positioned within the reproduction machine and forms a development nip with a latent image bearing surface of a photoreceptor of the reproduction machine. Importantly, the biased vibratory section has at least a first conductive electrode formed therein adjacent to the piezoelectric member for effecting controlled vibratory toner release from the donor member, and a first bias for biasing the at least first conductive electrode. The development electrode section includes a set of second conductive electrodes and a second bias therefor, and is located between the at least first electrode and the latent image bearing surface, for enhancing toner particle release from the donor member, and powder cloud formation within the development nip for quality image development.
摘要:
A scavengeless or non-interactive development system is described for use in image formation such as highlight color imaging. A toned donor roll structure having two sets of interdigitated electrodes physically supported by an insulative support structure is provided. An equal magnitude DC potential is applied to both sets of electrodes while an AC potential is applied to either one or both sets of electrodes. The AC and DC biases are such as to preclude background development without creating fringe DC fields between adjacent electrodes.
摘要:
A non-interactive or scavengeless development system for use in color imaging. To control the developability of lines and the degree of interaction between the toner and receiver, an AC voltage is applied between a donor roll and electrodes supported adjacent to the surface of said donor roll to enable efficient detachment of toner from the donor to form a toner cloud. An AC voltage applied between the donor roll assembly and an image receiver serves to position the cloud in close proximity to the image receiver for optimum development of lines and solid areas without scavenging a previously toned image.
摘要:
Direct electrostatic printing without the use of an apertured printhead structure is accomplished by supplying mechanical energy in an image-wise manner via AC fringe fields coupled to a toned donor member. The A.C. fringe fields are created using paired electrodes positioned behind the donor member where they can properly function notwithstanding fluctuations in the ambient environment.