公开(公告)号：EP0515234A1

公开(公告)日：1992-11-25

申请号：EP92304716.1

申请日：1992-05-26

Applicant: SUMMIT WORLD TRADE CORPORATION

Inventor： Cochrane, Geoffrey G. ,  McLean, Philip W. ,  Heipp, Christ H. ,  Tartamella, Michael D. ,  Taylor, Samual K.

IPC: B41J5/00 ,  B41J15/04 ,  G06F15/48

CPC classification number: B41J15/04

Abstract: A mobile printer (10) having features particularly suited for use in a mobile conveyance such as an airplane. The printer stores a first data set in a memory that is accessed under control of a programmable controller. The printer then receives a second data set via a communications transceiver. Data from the first and second data sets are combined to form a composite bit mapped image which is printed by means of a thermal printhead controlled by the programmable controller.
The thermal printhead (40) uses rolls of thermally sensitive paper (30) which are supported by means of a mandrel roll (50). The thermal paper is positioned adjacent the print head (40) by means of a platen roll (90). A biasing force is provided to bias the platen roll away from the print head when a door (22) in the printer housing is opened to provide a space into which the free end of the roll of paper can enter. A cam (220) is provided on the underside of the door to close the gap between the platen roll (90) and the print head (40) when the housing door is closed so that the platen roll (90) presses the paper against the print head while the printing operation takes place. A back pressure acts on the paper upstream of the platen and idler rolls to straighten the paper with respect to the print head.

Abstract translation: 一种移动式打印机（10），其具有特别适用于诸如飞机的移动传送装置中的特征。 打印机将第一数据集存储在可编程控制器的控制下访问的存储器中。 然后，打印机经由通信收发器接收第二数据组。 来自第一和第二数据组的数据被组合以形成通过由可编程控制器控制的热敏打印头打印的复合位映射图像。 热打印头（40）使用通过心轴辊（50）支撑的热敏纸（30）卷。 热敏纸通过压纸辊（90）定位在打印头（40）附近。 当打印机壳体中的门（22）打开以提供纸张的自由端可以进入的空间时，提供偏压力以将压板辊偏离打印头。 当门关闭时，凸轮（220）设置在门的下侧以封闭压纸辊（90）和打印头（40）之间的间隙，使得压纸卷轴（90）将纸压在纸张 在打印操作发生时打印头。 背压作用在纸板上方的纸张上，并且惰轮将相对于打印头的纸张拉直。