| 发明名称 |
PRINTING SYSTEM WITH FORCE CONTROL MODE |
| 摘要 |
A printing system includes a printhead to eject ink onto a print medium in a print zone. A first roller pair is adjacent to the print zone to advance a print medium into the print zone. A second roller pair upstream from the first roller pair, and driven by an independent motor, advances the print medium to the first roller pair in a position control mode. A controller causes the second roller pair to switch from the position control mode to a force control mode when a leading edge of the print medium reaches the first roller pair. The second roller pair applies a substantially constant force to the print medium in the force control mode to push the leading edge of the print medium against the first roller pair while the first roller pair is stationary. |
| 申请公布号 |
US2016144639(A1) |
申请公布日期 |
2016.05.26 |
| 申请号 |
US201514807098 |
申请日期 |
2015.07.23 |
| 申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
Sosnowski Luke P.;Kaiser Pierre J.;Toia Alexander;Barnes Arthur H.;Hacker Erich Waldherr |
| 分类号 |
B41J13/00 |
主分类号 |
B41J13/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A printing system, comprising:
a printhead to eject ink onto a print medium in a print zone; a first roller pair adjacent to the print zone to advance a print medium into the print zone; a second roller pair upstream from the first roller pair, and driven by an independent motor, to advance the print medium to the first roller pair in a position control mode; and a controller to cause the second roller pair to switch from the position control mode to a force control mode when a leading edge of the print medium reaches the first roller pair, wherein the second roller pair applies a substantially constant force to the print medium in the force control mode to push the leading edge of the print medium against the first roller pair with the substantially constant force while the first roller pair is stationary. |
| 地址 |
Houston TX US |
