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公开(公告)号:EP1457344A1
公开(公告)日:2004-09-15
申请号:EP04251458.8
申请日:2004-03-12
申请人: Printronix, Inc.
发明人: White, Dennis R , Jou, Jeng-Dung , Barrus, Gordon B , Chang, Y. Grant , Gemmell, John W , Kinley, John S , Chiu, Lihu , Moore, Kevin P
CPC分类号: B41J2/22
摘要: An ink density closed loop control system for an ink ribbon (20) of an impact line printer (10) having a reservoir roller (36) fluidly connected to a pump and ink supply. A transfer roller (156) can contact the reservoir roller (36) for imparting ink to the ink ribbon (20). A sensor senses the relative amount of ink on the print ribbon (20) and an electrical drive responsive to the sensor drives the pump for a flow of ink to the one or more channels. The sensor can sense ink on different segments of the ribbon (20) and, with two or more channels in the reservoir roller (36) can distribute ink to two or more segments of the reservoir roller (36) depending upon the ink sensed at a particular segment of the ribbon (20). A further enhancement of the invention provides a multi-viscosity ink to compensate for changes in ambient temperature conditions.
摘要翻译: 一种用于冲击线打印机(10)的墨带(20)的油墨密度闭环控制系统,具有流体连接到泵和墨水供应的储存辊(36)。 转印辊(156)可以与储墨辊(36)接触以将油墨赋予墨带(20)。 传感器感测到打印色带(20)上的墨水的相对量,并且响应于传感器的电驱动器驱动泵以将墨水流传送到一个或多个通道。 传感器可以感测色带(20)的不同部分上的墨水,并且储存辊(36)中的两个或更多个通道可以根据墨水感测到的墨水将油墨分配到储存辊(36)的两个或更多个部分 色带(20)的特定片段。 本发明的进一步改进提供了一种用于补偿环境温度条件变化的多粘度油墨。