RECORDING MEDIUM TRANSPORTING DEVICE AND INKJET RECORDING DEVICE

摘要

In a recording medium transporting device, an inter-shaft distance between a printing barrel that rotates and transports with gripping an end portion of a recording medium inwardly from an outer peripheral surface thereof and a first transporting barrel juncturally connected with the printing barrel is set to be a distance shorter than a sum of a radius of the printing barrel and a radius of the first transporting barrel, and an inter-shaft distance between the first transporting barrel and a second transporting barrel juncturally connected with the first transporting barrel is set to be a sum of the radius of the first transporting barrel and a radius of the second transporting barrel, which can suppress distortion of the recording medium and enables the first transporting barrel and the second transporting barrel to grip the end portion of the recording medium on the outer peripheral surface thereof, allowing stable transportation.

主权项

1. A recording medium transporting device comprising:
a printing barrel that rotates and transports with gripping an end portion of a recording medium inwardly from an outer peripheral surface thereof, an inkjet head configured to eject and deposit ink onto the recording medium being arranged on the outer peripheral surface so as to face the printing barrel; and a first transporting barrel that rotates and transports with gripping the end portion of the recording medium on an outer peripheral surface thereof for passing to the printing barrel and a second transporting barrel that rotates and transports with gripping the end portion of the recording medium on an outer peripheral surface thereof for passing to the first transporting barrel, or a first transporting barrel that rotates and transports with gripping the end portion of the recording medium received from the printing barrel on an outer peripheral surface thereof and a second transporting barrel that rotates and transports with gripping the end portion of the recording medium received from the first transporting barrel on an outer peripheral surface thereof, wherein an inter-shaft distance between the printing barrel and the first transporting barrel is set to be a distance shorter than a sum of a radius of the printing barrel and a radius of the first transporting barrel, and an inter-shaft distance between the first transporting barrel and the second transporting barrel is set to be a sum of the radius of the first transporting barrel and a radius of second transporting barrel, wherein the printing barrel grips the end portion of the recording medium inwardly by a distance d from the outer peripheral surface, and the inter-shaft distance between the printing barrel and the first transporting barrel is set to be a distance shorter by a distance d than the sum of the radius of the printing barrel and the radius of the first transporting barrel.