公开(公告)号：US20180093507A1

公开(公告)日：2018-04-05

申请号：US15570885

申请日：2015-07-13

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

Inventor： Luke Sosnowski ,  Mark H. MacKenzie

IPC: B41J13/26 ,  B41J13/03

Abstract: In one example implementation, a printing device may comprise a number of media skewing rollers to skew a print medium to a predetermined angle with respect to a media feed path and a print engine to print an image on the skewed print medium, the print engine skewing a digital representation of the image based on the predetermined angle such that the image printed is aligned with the print medium. In another example implementation, a printing device may comprise a number of skewing rollers to skew a print medium to a predetermined angle with respect to a media path, a number of pinch rollers to receive the skewed print medium prior to printing, and a print engine skewed to the same predetermined angle as the skewed print medium.

公开(公告)号：US20210069987A1

公开(公告)日：2021-03-11

申请号：US16607752

申请日：2018-04-06

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

Inventor： Justin M. Roman ,  Luke Sosnowski ,  David Soriano ,  Emiliano Gabriel Tolosa Gonzalez

IPC: B29C64/393 ,  B29C64/364 ,  B29C64/255 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/357

Abstract: A system for manufacturing three dimensional objects can include logic to detect, for at least one vessel, a moisture content level corresponding to a build material residing in the at least one vessel. The logic can also adjust a humidity level and a temperature of a gas and a conditioning agent applied to the at least one vessel, wherein the humidity level and the temperature are based on the moisture content level and a temperature of the build material residing in the at least one vessel. Additionally, the logic can initialize manufacturing a three dimensional object with the build material from the at least one vessel in response to detecting the moisture content level of the build material residing in the at least one vessel is within a predetermined range.

公开(公告)号：US11305491B2

公开(公告)日：2022-04-19

申请号：US16607752

申请日：2018-04-06

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

Inventor： Justin M. Roman ,  Luke Sosnowski ,  David Soriano ,  Emiliano Gabriel Tolosa Gonzalez

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/364 ,  B29C64/357 ,  B29C64/255

Abstract: A system for manufacturing three dimensional objects can include logic to detect, for at least one vessel, a moisture content level corresponding to a build material residing in the at least one vessel. The logic can also adjust a humidity level and a temperature of a gas and a conditioning agent applied to the at least one vessel, wherein the humidity level and the temperature are based on the moisture content level and a temperature of the build material residing in the at least one vessel. Additionally, the logic can initialize manufacturing a three dimensional object with the build material from the at least one vessel in response to detecting the moisture content level of the build material residing in the at least one vessel is within a predetermined range.

公开(公告)号：US20210023795A1

公开(公告)日：2021-01-28

申请号：US16607742

申请日：2018-04-06

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

Inventor： Luke Sosnowski ,  Justin M. Roman

IPC: B29C64/393 ,  B29C64/364 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02

Abstract: A system for manufacturing three dimensional objects can include logic to apply a gas with at least one flow rate to a vessel of a three dimensional printer. The logic can also detect a permeability of a build material residing within the vessel, wherein the permeability is calculated based on a plurality of pressure values detected by a plurality of pressure sensors residing in the vessel, and apply the gas with a predetermined humidity level at a second flow rate to modify the permeability of the build material residing in the vessel. Furthermore, the logic can initialize manufacturing a three dimensional object with the build material in response to detecting the permeability of the build material is below a predetermined threshold.

公开(公告)号：US20210023785A1

公开(公告)日：2021-01-28

申请号：US16607739

申请日：2018-04-06

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

Inventor： Luke Sosnowski ,  Justin M. Roman ,  David R. Otis, JR. ,  Terry Lambright

IPC: B29C64/255 ,  B29C64/364 ,  B29C64/314

Abstract: Techniques for controlling moisture content of build material in a three-dimensional printer are provided. The system includes a vessel to supply the build material into a build material conveying system. The vessel includes an air inlet to receive a flow of air to fluidize the build material. The system also includes an air conditioner to control the humidity of the air and provide a controlled level of moisture content to the build material.

公开(公告)号：US11541602B2

公开(公告)日：2023-01-03

申请号：US16607788

申请日：2018-04-06

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

Inventor： Luke Sosnowski ,  Justin M. Roman ,  David Soriano ,  Emiliano Gabriel Tolosa Gonzalez

IPC: B29C64/393 ,  B29C64/124 ,  B29C64/364 ,  B29C64/329 ,  B29C64/255 ,  B33Y40/00 ,  B33Y40/10 ,  B33Y10/00 ,  B33Y30/00

Abstract: Techniques for controlling moisture content of build material in a three dimensional printer are provided. An example system includes a build material vessel to contain the build material and receive a flow of air, and a humidifier to adjust the humidity of the air flowing into the build material vessel. The system also includes one or more sensors to determine a dew point of the air flowing into the build material vessel. The humidity level of the air flowing into the hopper is controlled by the humidifier to maintain the dew point at a level that will prevent condensation of water inside the build material vessel.

公开(公告)号：US11318682B2

公开(公告)日：2022-05-03

申请号：US16607742

申请日：2018-04-06

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

Inventor： Luke Sosnowski ,  Justin M. Roman

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/364 ,  G05D22/02 ,  B33Y40/00

Abstract: A system for manufacturing three dimensional objects can include logic to apply a gas with at least one flow rate to a vessel of a three dimensional printer. The logic can also detect a permeability of a build material residing within the vessel, wherein the permeability is calculated based on a plurality of pressure values detected by a plurality of pressure sensors residing in the vessel, and apply the gas with a predetermined humidity level at a second flow rate to modify the permeability of the build material residing in the vessel. Furthermore, the logic can initialize manufacturing a three dimensional object with the build material in response to detecting the permeability of the build material is below a predetermined threshold.

公开(公告)号：US20210016510A1

公开(公告)日：2021-01-21

申请号：US16607788

申请日：2018-04-06

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

Inventor： Luke Sosnowski ,  Justin M. Roman ,  David Soriano ,  Emiliano Gabriel Tolosa Gonzalez

IPC: B29C64/393 ,  B29C64/255 ,  B29C64/364 ,  B29C64/329 ,  B29C64/124

Abstract: Techniques for controlling moisture content of build material in a three dimensional printer are provided. An example system includes a build material vessel to contain the build material and receive a flow of air, and a humidifier to adjust the humidity of the air flowing into the build material vessel. The system also includes one or more sensors to determine a dew point of the air flowing into the build material vessel. The humidity level of the air flowing into the hopper is controlled by the humidifier to maintain the dew point at a level that will prevent condensation of water inside the build material vessel.