发明授权
- 专利标题: Low flow vacuum platen for ink-jet hard copy apparatus
- 专利标题(中): 用于喷墨硬拷贝装置的低流量真空压板
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申请号: US09514830申请日: 2000-02-28
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公开(公告)号: US06409332B1公开(公告)日: 2002-06-25
- 发明人: Robert M Yraceburu , Steve O Rasmussen , James O Beehler
- 申请人: Robert M Yraceburu , Steve O Rasmussen , James O Beehler
- 主分类号: B41J201
- IPC分类号: B41J201
摘要:
An ink-jet apparatus employs a platen having an array of vacuum ports that are each filtered. The filter is constructed to provide restricted-airflow rates which remain uniform when the platen is either fully covered or partially uncovered. The filter mechanism provides both airflow restrictions such that ink drop flight trajectories in the printing zone are unaffected, acoustic dampening of the vacuum pump is provided, and vacuum pressure is kept relatively high proximate the print media edges.