Patent ID: 8350881
Filing Date: 2013-01-08
Classification: B41J

Abstract:
1. A printer, comprising: a first unit including a paper holder; a second unit adapted to open and close pivotably relative to the first unit; a paper path which extends from the paper holder to an exterior; a printing section configured to execute a print operation on paper conveyed from the paper holder along the paper path; a sensor unit which: (i) comprises a lower sensor holder and an upper sensor holder pivotably engaged with the lower sensor holder, one of the lower sensor holder and the upper sensor holder including both a light emitting element configured to emit light to the paper and a light receiving element configured to detect light reflected by the paper in response to the light emitted by the light emitting element, and (ii) is attached to the first unit so that the paper passes between the lower sensor holder and the upper sensor holder; and a damper mechanism attached to the sensor unit and disposed between the sensor unit and the paper holder, the damper mechanism having a paper abutment portion and a spring, the spring pressing the paper abutment portion against the paper conveyed along the paper path and applying tension to the paper.