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公开(公告)号:US4639738A
公开(公告)日:1987-01-27
申请号:US722549
申请日:1985-04-12
CPC分类号: B41J2/17566
摘要: The detection system includes a cartridge having a first detection port for detecting the pressure condition in the top portion of the cartridge and a second detection port and tube for detecting the pressure condition in a bottom portion of the cartridge. The cooperative printer structure couples these ports to a pressure differential sensor that signals a printer refill condition.
摘要翻译: 检测系统包括具有用于检测盒的顶部中的压力状态的第一检测端口的盒和用于检测盒的底部中的压力状态的第二检测端口和管。 协作打印机结构将这些端口耦合到用于指示打印机再填充状态的压差传感器。