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    • 3. 发明授权
    • Printer with carriage-actuated clutch and paper-feed mechanism
    • 打印机带支架式离合器和送纸机构
    • US5000594A
    • 1991-03-19
    • US421454
    • 1989-10-13
    • James O. BeehlerAllan G. OlsenChong S. Yoon
    • James O. BeehlerAllan G. OlsenChong S. Yoon
    • B41J11/00B41J13/00B41J13/02B41J13/10B41J19/20B41J19/78B41J23/02
    • B41J13/103B41J23/025
    • The invented printer includes a carriage-actuated clutch and a motor-driven gear element. The clutch is selectively engageable with the element and causes the printer to perform different tasks when engaged. More specifically, the invented printer includes a motor-driven gear, a printhead and a printhead carriage, a clutch having a flexible portion, and a gripping surface on the flexible portion for engaging the motor-driven gear. To actuate the clutch, the carriage pushes against the clutch causing it to flex and engage the motor-driven gear. When engaged, rotating the gear a predetermined distance causes the clutch to rotate a predetermined distance, in turn causing the printer to perform a certain task. Continuing to rotate the clutch causes the printer to perform other tasks.The invented printer also includes a paper-feed mechanism for picking up and feeding a sheet of paper into the printer. This mechanism incudes a rotatable drive roller that moves paper through the printer, a spring-biased plate capable of pivoting around an axial pivot, biased to extend toward the drive roller and on which paper is tacked, a partition, having at least one opening, positioned between the roller and the plate for generally preventing the roller from contacting the media on the plate, and a pivot adjacent the roller for selectively allowing at least a part of the roller to extend through the opening in the partition to contact the top sheet of paper and feed it through the printer. The paper-feed mechanism is one task that may be triggered by the carriage-actuated clutch.
    • 4. 发明授权
    • Unified paper path printer with automatic parking feature
    • 具有自动停车功能的统一纸路打印机
    • US5135321A
    • 1992-08-04
    • US582817
    • 1990-09-12
    • Allan G. OlsenTod S. Heiles
    • Allan G. OlsenTod S. Heiles
    • B41J11/48
    • B41J11/48
    • A printer is disclosed having an improved paper feed mechanism. The improved paper feed system has a reduced cost and accepts a wide variety of paper types including continous forms and single cut sheets fed both by hand and from a paper tray. Furthermore, the printer is capable of switching from one paper source to another without requiring the operator to unload and reload paper. The mechanism operates with only two motors and no solenoids. Control over the paper path is maintained by employing the carriage to select the paper path and lift the ball. The printer also has a novel paper sensor.
    • 公开了一种具有改进的进纸机构的打印机。 改进的进纸系统具有降低的成本并且接受各种各样的纸张类型,包括用手和从纸盘馈送的连续形式和单张纸。 此外,打印机能够从一个纸源切换到另一个纸张源,而不需要操作者卸载和重新装入纸张。 该机构仅使用两个电机,无电磁铁。 通过使用滑架选择纸张路径并提起球来保持纸张路径的控制。 打印机还具有新颖的纸张传感器。