公开(公告)号：US20240408617A1

公开(公告)日：2024-12-12

申请号：US18702953

申请日：2021-10-22

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Doron SCHLUMM ,  Mark SANDLER ,  Dror KELLA ,  Shahaf BARON

IPC: B03C5/02 ,  B08B1/16 ,  B08B1/20 ,  G03G15/10 ,  G03G21/00

Abstract: In one example, a system to clean imaging oil from a cleaning station in an LEP printer includes an electrode plate, an electrode belt rotatable in a loop past the electrode plate, a channel to carry unfiltered imaging oil from the cleaning station between the electrode plate and the electrode belt, and a voltage source operatively connected to the electrodes to establish an electric field that causes waste in the imaging oil between the electrodes to attach to the belt.

公开(公告)号：US20240411258A1

公开(公告)日：2024-12-12

申请号：US18705246

申请日：2021-10-28

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Peter NEDELIN ,  Dror KELLA ,  Assaf PINES

IPC: G03G15/00 ,  G03G15/11 ,  G03G15/16

Abstract: In an example of the disclosure, a system for identification of gas conveyance malfunctions includes a channel situated to convey a subject gas, a condenser in fluid connection with the channel, and a heat blower positioned in fluid connection with the channel. The heat blower is to heat the subject gas, and to cause the subject gas to move through the channel towards the condenser. The system includes a temperature sensor situated to take a temperature reading of the subject gas within or adjacent the channel. The system includes a controller, operatively connected to the temperature sensor. The controller is to identify a malfunction event for the heat blower, the condenser, or the channel based upon a comparison of the temperature reading to a threshold temperature.

公开(公告)号：US20240255862A1

公开(公告)日：2024-08-01

申请号：US18290652

申请日：2021-07-22

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Vitaly PORTNOY ,  Dror KELLA ,  Michel ASSENHEIMER ,  Yuval KFIR

IPC: G03G15/01 ,  G03G15/10

CPC classification number: G03G15/0189 ,  G03G15/104 ,  G03G2215/0122

Abstract: In one example, a printing process includes gathering a first group of individual color separations for an image sequentially on an intermediate transfer roller, transferring the first group from the intermediate transfer roller to a printable substrate, gathering a second group of individual color separations for the image sequentially on the intermediate transfer roller, and transferring the second group from the intermediate transfer roller to the substrate.