Method for printing an image on a printing substrate and device for inputting energy to a printing-ink carrier
First Claim
1. A method for printing an image on a printing substrate comprising the steps of:
- producing a plurality of portions of fluid printing ink on a printing-ink carrier by inputting energy using a plurality of image spots of an array of individually controllable VCSEL light sources; and
transferring the fluid printing ink to a printing substrate.
1 Assignment
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Accused Products
Abstract
A method for printing an image on a printing substrate, a number of portions of fluid printing ink being produced on a printing ink carrier (10) through energy input by a number of image spots (810) of an array (84) of individually controllable VCSEL light sources, and the fluid printing ink being transferred to the printing substrate. A device for inputting energy (80) to a printing-ink carrier (10), includes a number (82) of individually controllable laser light sources which have a modular design consisting of subarrays (86) and are disposed in an array (84), and further includes printing-ink carrier (10) with which is associated an axis of rotation (88) and on the surface of which can be produced a number of image spots (810) of the laser light sources. The subarrays of laser light sources are VCSEL bars (84), and rows of image spots (12) of the VCSEL bars are inclined with respect to the axis of rotation (88).
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Citations
20 Claims
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1. A method for printing an image on a printing substrate comprising the steps of:
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producing a plurality of portions of fluid printing ink on a printing-ink carrier by inputting energy using a plurality of image spots of an array of individually controllable VCSEL light sources; and
transferring the fluid printing ink to a printing substrate. - View Dependent Claims (2, 3, 4, 5, 6, 19)
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7. A device for inputting energy to a printing-ink carrier comprising:
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a plurality of individually controllable laser light sources having a modular design including subarrays disposed in an array, the subarrays being VCSEL bars; and
a printing-ink carrier having an axis of rotation and a surface for receiving a plurality of image spots of the laser light sources, rows of the image spots being inclined with respect to the axis of rotation when the VCSEL bars are triggered simultaneously. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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20. A printing press for printing an image on a printing substrate comprising:
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a plurality of individually controllable laser light sources having a modular design including subarrays disposed in an array, the subarrays being VCSEL bars; and
a printing-ink carrier having an axis of rotation and a surface for receiving a plurality of image spots of the laser light sources, rows of the image spots being inclined with respect to the axis of rotation when the VCSEL bars are triggered simultaneously, the light sources producing a plurality of portions of fluid printing ink on the printing-ink carrier by inputting energy using the plurality of image spots, the printing-ink carrier transferring the fluid printing ink to a printing substrate.
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Specification