| 摘要 |
<P>PROBLEM TO BE SOLVED: To measure media curl so that reliable marking can be achieved and damage to an ink cartridge can be prevented. <P>SOLUTION: One or more curled media sheets 132-138 can be propelled in a process direction via a set of rollers/nips associated with a curler from a leading edge and/or trailing edge towards the angled array sensor 130. The angled array sensor 130 having a rotation vector in the cross-process direction can be placed upstream or downstream of a media-propelling device and at an angle relative to the media sheet exiting the curler in order to calculate a function of sheet curl. The function of sheet curl can be obtained by measuring a point at which the propelled media sheet touches an array associated with the angled array sensor 130. Such a curl measurement approach enhances accuracy and robustness to environmental induced errors. <P>COPYRIGHT: (C)2012,JPO&INPIT |
