Patent ID: 9573385
Date: 2017-02-21
CPC Classifications: B41J

Claim:
1. A printing apparatus using laser light sources for supplying energy to a target object to form an image, comprising a laser light source arrangement comprising a plurality of laser light sources arranged such that laser beams of the laser light sources intersect a surface of a target object at different target points along a moving direction, a transport mechanism for moving at least one of the target object and the laser light sources relative to each other in the moving direction, wherein with each movement of the at least one of the laser light sources and the target object a selected one of the different target point is irradiated by at least one of the plurality of laser light sources, wherein multiple target points can be printed simultaneously, and a controlling arrangement configured to: control the plurality of laser light sources based on data associated with the image wherein an energy level at the selected target point is stepwise increased by irradiation of at least two different laser light sources along the moving direction, wherein the laser light sources are operated at a defined power operating point dependent upon a texture of the target object.