发明名称 |
Typewriter with optical facility to facilitate corrections - focusses light beam onto impact point to provide precise location of required alteration |
摘要 |
<p>A typewriter has an optical facility to identify specific locations of characters as an aid in the fitting of forms or positioning for corrections. The optical facility (9) consists of a light source, fitter and focussing lens to direct a marker (10) onto the surface of the paper that is fed over the roller (2). The marker is located in relation to a base line and is set into a window (5) to indicate the position of impact by the print hammer. In the case of a golf ball typewriter the optical beam facility is duplicated and are set to gain access around the ball. Both units are focussed onto the impact spot.</p> |
申请公布号 |
DE3021950(A1) |
申请公布日期 |
1981.12.17 |
申请号 |
DE19803021950 |
申请日期 |
1980.06.12 |
申请人 |
PRIVATES INSTITUT FUER PHYSIKALISCH TECHNISCHE AUFTRAGSFORSCHUNG GMBH, 6107 REINHEIM, DE |
发明人 |
PEJAS, WOLFRAM, DR., 6107 REINHEIM, DE |
分类号 |
B41J25/22;(IPC1-7):41J25/22 |
主分类号 |
B41J25/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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