公开(公告)号：US12013337B2

公开(公告)日：2024-06-18

申请号：US16605888

申请日：2018-03-30

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

Inventor： Noam Meyuhas ,  Guy Nesher ,  Eviatar Golan

IPC: B41J11/00 ,  G01N21/3554

CPC classification number: G01N21/3554 ,  B41J11/00216

Abstract: An example apparatus for determining dryness of an agent on print media includes an infrared prism, a source of infrared radiation to direct infrared radiation into the infrared prism, and a detector. The infrared prism includes a surface, the surface having an outer side to contact a portion of the agent on the print media, the infrared prism having a refractive index that is higher than a refractive index of the agent. The source of infrared radiation is to direct infrared radiation into the infrared prism and onto an inner side of the surface. The detector is to generate a signal based on infrared radiation reflected by the inner side of the surface to indicate the dryness of the portion of the agent.

公开(公告)号：US20210300075A1

公开(公告)日：2021-09-30

申请号：US16605888

申请日：2018-03-30

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

Inventor： Noam Meyuhas ,  Guy Nesher ,  Eviatar Golan

IPC: B41J11/00

Abstract: An example apparatus for determining dryness of an agent on print media includes an infrared prism, a source of infrared radiation to direct infrared radiation into the infrared prism, and a detector. The infrared prism includes a surface, the surface having an outer side to contact a portion of the agent on the print media, the infrared prism having a refractive index that is higher than a refractive index of the agent. The source of infrared radiation is to direct infrared radiation into the infrared prism and onto an inner side of the surface. The detector is to generate a signal based on infrared radiation reflected by the inner side of the surface to indicate the dryness of the portion of the agent.