公开(公告)号：WO2008134316A1

公开(公告)日：2008-11-06

申请号：PCT/US2008/061158

申请日：2008-04-22

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. ,  MCCONICA, Charles, H. ,  KINAS, Erick, B. ,  WARD, Jefferson, P. ,  CASTLE, Steven, T. ,  JOHNSON, Loren, E. ,  BHATT, Jayprakash, C.

Inventor： MCCONICA, Charles, H. ,  KINAS, Erick, B. ,  WARD, Jefferson, P. ,  CASTLE, Steven, T. ,  JOHNSON, Loren, E. ,  BHATT, Jayprakash, C.

IPC: B41J2/175

CPC classification number: G01F23/292 ,  B41J2/17553 ,  B41J2/17566 ,  G01F23/2927

Abstract: An ink level sensing device and associated method. The ink level sensing device 10 includes an illumination source 12 that emits near infrared light, and a container 14 configured to accommodate a supply of ink 16 containing light absorption material. The device further includes a protruding chamber 18 adjacent to the container. The protruding chamber is configured to accommodate a portion of the supply of ink accommodated by the container. The device also includes a sensor 20 that is configured to receive a signal based on an amount of the light 22 that passes through the protruding chamber.

Abstract translation: 一种油墨液位感测装置及其相关方法。 墨水量检测装置10包括发射近红外光的照明源12和构造成容纳含有光吸收材料的墨水供应16的容器14。 该装置还包括与容器相邻的突出室18。 突出室被配置为容纳由容器容纳的墨水供应的一部分。 该装置还包括传感器20，其被配置为基于穿过突出室的光22的量接收信号。