公开(公告)号：US5037222A

公开(公告)日：1991-08-06

申请号：US400001

申请日：1989-08-29

申请人： Harry C. Quick ,  Robert M. Schooley ,  Fred O. Stephens ,  Frank A. Ellis ,  James L. Harlow ,  Ken A. Boulanger ,  Paul W. Snyder ,  John P. McAlister ,  Thomas A. Rogel ,  Paul J. Morris

发明人： Harry C. Quick ,  Robert M. Schooley ,  Fred O. Stephens ,  Frank A. Ellis ,  James L. Harlow ,  Ken A. Boulanger ,  Paul W. Snyder ,  John P. McAlister ,  Thomas A. Rogel ,  Paul J. Morris

IPC分类号： B41J11/08 ,  B41J11/53 ,  B41J11/54 ,  B41J13/076 ,  B41J32/02 ,  B41J35/08

CPC分类号： B41J11/08 ,  B41J11/53 ,  B41J11/54 ,  B41J13/076 ,  B41J32/02 ,  B41J35/08

摘要： A printer has one or more tractor sets for continuously feeding paper along first and second paper paths. One tractor set may be pivoted between positions for feeding paper from the front or bottom of the printer along the first paper path. Where one tractor set is used, it may be removed from the first feed path and disposed along the second paper path to feed paper along the second paper path for printing. Where two tractor sets are provided, the second set is disposed along the second paper path to feed the paper along the second path for printing. The tractor sets are detachable and usable in each of the three tractor set feed positions. Other features include eccentric bearings, resilient roller assemblies, an integrally molded mainframe and a cartridge assembly having a one-way ribbon advance clutch and a tensioning device before the mobius loop.

摘要翻译： 打印机具有一个或多个拖拉机组，用于沿第一和第二纸张路径连续地输送纸张。 一个拖拉机组可以在用于沿着第一纸通道从打印机的前部或底部供纸的位置之间枢转。 在使用一个拖拉机组的情况下，可以从第一进给路径移除并沿着第二纸路设置沿着第二纸路进给纸以进行打印。 在设置两个拖拉机组的情况下，第二组沿着第二纸张路径布置以沿着第二路径进给纸张以进行打印。 拖拉机组是可拆卸的，可用于三个拖拉机组进给位置中的每一个。 其他特征包括偏心轴承，弹性辊组件，整体模制的主机和具有单向带前进离合器的卡盘组件和在mobius回路之前的张紧装置。