Digital printer or copier machine and processes for fixing a toner image
AssigneeNexPress Solutions LLC
InventorsGerhard Bartscher, Gerald Erik Hauptmann, Frank-Michael Morgenweck, Domingo Rohde, Detlef Schulze-Hagenest
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Abstract
Digital printers or copier machines (1) and processes to be performed using them, for fixing a toner image (5) transferred onto an image-carrier substrate (9), are proposed. One of the processes is characterized in that to fuse the toner particles, at least two electromagnetic radiation pulses are applied in a time-delayed manner onto the same area of the image-carrier substrate (9) and each one individual radiation pulse being in a range from 0.5 J/cm2 to 5 J/cm2.
Claims19
Process for fixing a toner image, made up of toner particles, transferred onto an area of an image-carrier substrate comprising the step of fusing the toner particles of said toner image to said image-carrier substrate by at least two electromagnetic radiation pulses, a radiation energy density of each one individual radiation pulse being in a range from 0.5 J/cm2 to 5 J/cm2, applied onto the same area of said image-carrier substrate in a time-delayed manner.
Electrostatic printer or copier machine which has a fixing device for fixing a toner image, made up of toner particles, on an area of an image-carrier substrate, said fixing device comprising:
- at least one radiation source for applying clocked electromagnetic radiation onto the image-carrier substrate, at least one power supply unit for said radiation source, and a control for said power supply whereby said radiation source provides at least two time-delayed radiation pulses with a radiation density of each one individual radiation pulse being in a range of from 0.5 J/cm2 to 5 J/cm2, applied on the same image-carrier area of said substrate.
Dependencies are inferred from the claim text.