公开(公告)号：US20220371343A1

公开(公告)日：2022-11-24

申请号：US17772045

申请日：2019-11-27

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Daniel Gutierrez Garcia ,  Adria Olmos Marin ,  Albert Estella Aguerri

IPC: B41J15/16

Abstract: A print substrate transport system comprises a print substrate supply mechanism and a tensioner. The print substrate supply mechanism is configured to advance print substrate to a printing zone in a discontinuous motion. The tensioner is provided downstream of the print printing zone and is configured to guide a path of the print substrate from the printing zone to a post-processing zone, to control tension in the print substrate in the post-processing zone, and to convert the discontinuous motion of the substrate to continuous motion. A print substrate transport method comprises supplying a print substrate to a printing zone in a discontinuous motion, controlling a tension of the print substrate on a path downstream of the printing zone and converting the motion of the substrate from the discontinuous motion to a continuous motion.

公开(公告)号：US20230017952A1

公开(公告)日：2023-01-19

申请号：US17374058

申请日：2021-07-13

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

Inventor： Adria Olmos Marin ,  Nestor Luid Pinol ,  Albert Estella Aguerri

IPC: B41F23/04

Abstract: Examples relate to a drying cylinder for an image forming apparatus. The drying cylinder comprises a curved wall and a plurality of gas outlets spaced apart over the curved wall. The drying cylinder is to continuously rotate about its longitudinal axis and provide gas through the plurality of gas outlets perpendicularly onto a print medium with printing fluid deposited thereon to dry the printing fluid.

公开(公告)号：US20220281244A1

公开(公告)日：2022-09-08

申请号：US17634753

申请日：2019-09-26

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Albert Estella Aguerri ,  David Munoz Navarro ,  Francisco Guerrero Carvajal

IPC: B41J11/42

Abstract: A system is disclosed. The system comprises a roller with a spindle to wind and/or unwind a roll of media, a media advancement sensor to measure the advancement of the media, and a controller. The controller is to control the spindle to rotate an angular displacement, and to determine a calculated media advancement based on the angular displacement and a radius of the roll of media. The controller is also to receive from the media advancement sensor a measured media advancement. The controller is further to detect that a displacement difference between the measured media advancement and the determined media advancement exceeds a predetermined threshold. If the displacement difference exceeds the predetermined threshold a slippage condition is detected.