Patent ID: 9085181
Filing Date: 2015-07-21
Classification: B41J

Abstract:
1. A printing apparatus comprising: a frame supporting a transport roller transporting the printing medium, a carriage mounting print head, executing scanning in a direction perpendicular to a transport direction of a printing medium; an encoder scale having a predetermined pattern and extending in the direction perpendicular to the transport direction, the encoder scale having a first end mounting portion to mount to one side portion of the frame and a second end mounting portion to mount to an opposing side to the one side portion of the frame; a detection sensor detecting the pattern of the encoder scale and including a slit into which the encoder scale is inserted; and wherein the encoder scale has a protrusion that protrudes from the predetermined pattern between the first end mounting portion and the second end mounting portion, the protrusion protrudes in a protruding direction intersecting with a direction connecting the first end mounting portion and the second end mounting portion, and the protruding direction is intersecting to the transport direction, wherein an engagement hole portion is disposed in the protrusion and an engagement portion is disposed in the frame and engages with the engagement hole portion, the engagement hole portion extending in the direction connecting the first end mounting portion and the second end mounting portion, and wherein the engagement portion passes through the engagement hole portion, extends in the direction connecting the first end mounting portion and the second end mounting portion, and faces to the protrusion.