HP. has filed a patent for a controller in an imaging device that determines a reservoir for a printhead spitting operation based on data, selects a spit type, and executes the operation. The technology aims to improve printing efficiency and quality. GlobalData’s report on HP gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on HP, Device power optimization was a key innovation area identified from patents. HP's grant share as of January 2024 was 58%. Grant share is based on the ratio of number of grants to total number of patents.
Controller for spitting operation of printhead in imaging device
A patent application (Publication Number: US20240034067A1) discloses a controller for an imaging device that includes a processing resource and a memory resource storing machine-readable instructions. The controller is designed to determine a reservoir for a spitting operation of a printhead based on predetermined reservoir data, determine the type of spit for the operation, and execute the spitting operation in the reservoir using the determined spit type. The spit type can vary based on factors such as the dimension of the reservoir, the presence of a restricted zone, the type of print job, and the amount of print material involved. Additionally, the controller can determine the reservoir based on the print job type and cause the printhead to eject print material into the reservoir.
Furthermore, the patent application also includes a non-transitory machine-readable storage medium with instructions for a processing resource to determine the reservoir for a spitting operation based on predetermined data, including the print material fill amount, allowable spitting operation types, and reservoir dimensions. The instructions also cover determining the spit type based on the type of spitting operation and predetermined data, as well as executing the spitting operation in the reservoir according to the determined spit type. Different spit types such as fixed-point spit, randomized point spit, and spit-on-slew spit are considered, with corresponding instructions for determining spit locations and ranges in the reservoir. An imaging device incorporating this technology includes multiple reservoirs, a print carriage with a printhead, and a controller to manage the spitting operation based on predetermined data and print job type, ensuring efficient and effective printing processes.
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