发明授权
- 专利标题: Print-head positioning system having a paper sensor
- 专利标题(中): 具有纸张传感器的打印头定位系统
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申请号: US404893申请日: 1989-09-08
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公开(公告)号: US5193918A公开(公告)日: 1993-03-16
- 发明人: Gerhard Lohrmann , Helmut Riesenegger
- 申请人: Gerhard Lohrmann , Helmut Riesenegger
- 申请人地址: DEX Dusseldorf
- 专利权人: Mannesmann Aktiengesellschaft
- 当前专利权人: Mannesmann Aktiengesellschaft
- 当前专利权人地址: DEX Dusseldorf
- 优先权: DEX3830880 19880908
- 主分类号: B41J7/92
- IPC分类号: B41J7/92 ; B41J25/308
摘要:
A printer with a print-head distance-setting device for adjusting the distance (1) between print head (2) and print-material counter support (3) for recording-material carriers (4) of unequal thickness, resting on the print-material counter support (3), including a mechanical sensing member (5) for controlling a print head (2), adjustable in a direction perpendicular relative to the longitudinal direction of the slider carriage motion, where the print head (2) is disposed on a longitudinally movable print-head slider carriage (7), which print-head slider carriage (7) in turn is guided with a pair of parallel guide axles (9), of which one guide axle (9) is supported by way of a pair of eccentric-disposed pins (10) and of which the second guide axle (9) is cross-movably supported in the printer side walls (32). In order to achieve a simpler and more easily constructed print-head distance-setting device, which can in addition be controlled more accurately, an electrical analog signal, generatable by the setting motions of the sensing member (5), serves in a converted configuration of an electronic digital signal in an electronic circuit (11) for the control of a step motor (12), supported at a printer frame, where the step motor (12) forms a servo drive (13) for the pair of eccentric-disposed pins (10) of the guide axle (9).
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