发明授权
- 专利标题: Squeeze printing mechanism
- 专利标题(中): 挤压印刷机构
-
申请号: US422923申请日: 1982-09-24
-
公开(公告)号: US4457637A公开(公告)日: 1984-07-03
- 发明人: Frederick P. Willcox
- 申请人: Frederick P. Willcox
- 专利权人: Willcox Frederick P
- 当前专利权人: Willcox Frederick P
- 主分类号: B41J1/02
- IPC分类号: B41J1/02 ; B41J9/28
摘要:
A printer is fitted with a squeeze printing mechanism employing a toggle or over-the-center crank mechanism to provide direct pressure to a printing element for accurate impression depth control during imprinting and for achieving low velocity at the time of print element contact with the paper to materially reduce printing noise. Mechanism and linkages are provided for either single or double electromagnetic actuators. The linkages are arranged to provide rectilinear movement of the type face bearing element just prior to and during imprinting. Over pressure relief is provided for the toggle or over-the-center crank mechanism to prevent damage or lock-up if the printer platen position is not correctly adjusted for the paper being used.
公开/授权文献
- US5049902A System for recording an image 公开/授权日:1991-09-17