Patent ID: 7548316
Filing Date: 2009-06-16
Classification: B41J,B65H,G01B,G03G

Abstract:
1. An apparatus, comprising: a media substrate curl sensor, wherein said curl sensor is configured to measure an amount of curl of a media substrate; a first pair of substrate constraint rollers, which constrains said media substrate at a pre-defined angular trajectory and wherein each roller of said first pair of substrate constraint rollers is disposed on opposite sides of a transport media substrate path; and a first pair of substrate drive rollers, wherein each roller of said first pair of substrate drive rollers is disposed on opposite sides of said transport media substrate path, wherein said first pair of substrate constraint rollers and said first pair of substrate drive rollers maintain said media substrate under tension wherein said first pair of substrate constraint rollers provides a higher drive speed of said media substrate than said first pair of substrate drive rollers and wherein said media substrate passes in succession through said first pair of substrate drive rollers, said first pair of substrate constraint rollers and said media substrate curl sensor, thereby providing for a media substrate constraint and curl sensor apparatus.