Patent ID: 9035985
Filing Date: 2015-05-19
Classification: B41J

Abstract:
1. A printer apparatus comprising: a printer body including an opening part that forms a protruding part; a platen unit removably installed in the printer body; and an operation lever rotatably provided in the platen unit; a platen roller including a first rotary shaft and rotatably provided in the platen unit to rotate about the first rotary shaft; a shaft bearing that rotatably supports the platen roller and configured to rotate about the first rotary shaft in accordance with a rotation of the operation lever, the shaft bearing including a projecting part formed to be farther from the first rotary shaft compared to other parts of the shaft bearing; and a support part provided in the printer body by way of a second rotary shaft and configured to rotatably support the platen unit to rotate about the second rotary shaft; wherein the opening part is configured to receive the shaft bearing, wherein when the platen unit is installed in the printer body, the projecting part and the protruding part contact each other, and wherein a direction in which the projecting part rotates about the first rotary shaft when the contact between the projecting part and the protruding part is released by way of the rotation of the operation lever is the same as a direction in which the platen unit rotates about the second rotary shaft when removing the platen unit from the printer body.