Patent ID: 6974203
Filing Date: 2005-12-13
Classification: B41J

Abstract:
1. A recording apparatus comprising: a carriage for enabling a recording head for recording on a recording medium to reciprocate in a direction intersecting a conveying direction of said recording medium, said carriage reciprocating by driving power transmitted from driving means to a drive transmitting portion of said carriage; a guide shaft having a substantially circular lateral section for guiding said carriage to reciprocate in said intersecting direction; and a bearing portion provided for said carriage to slide along said guide shaft, said bearing portion being installed substantially on either side in the direction of said reciprocal traveling, wherein said bearing portion is structured to be in contact with said guide shaft at two points on an upstream side and downstream side in the conveying direction of said recording medium with respect to the direction of a vertical line running through the center of said guide shaft, and each angle formed in the directions of a tangential line on an outer circumference of said guide shaft and the vertical line at each of the contact points between said bearing portion and said guide shaft is set to make a friction force generated between said guide shaft and said bearing portion larger than the force generated at a time of said carriage being accelerated to cause said bearing portion to slide in the circumferential direction of said guide shaft.