发明名称 |
Pulsating vacuum mechanism for print media-advancement in a printing device |
摘要 |
A printing device includes a print media advancement subsystem for providing accurate and timely print media advancement in the printing device. The print media advancement subsystem includes a vacuum chamber for generating a vacuum force through a platen for holding a print media stationary. In response to receiving a print media advance signal from a controller in the printing device, a sealing plate forming a side of the vacuum chamber is removed from the vacuum chamber. When the sealing plate is removed, the vacuum chamber is substantially open to the atmosphere, causing the vacuum chamber to pressurize. The pressurization of the vacuum chamber results in removal of the vacuum force from the print media, allowing the print media to advance along the top surface of the platen with minimal friction.
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申请公布号 |
US6640708(B2) |
申请公布日期 |
2003.11.04 |
申请号 |
US20010984537 |
申请日期 |
2001.10.30 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
PEREZ FRANCISCO JAVIER;CLARAMUNT DAVID;GARCIA JESUS;GROS XAVIER |
分类号 |
B41J11/00;(IPC1-7):B41F13/24;B41J11/02;B41J15/00;B65H3/14 |
主分类号 |
B41J11/00 |
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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