JP2003118902A5 - - Google Patents

Description

0005
[Means for solving problems]
The paper feed device of the inkjet printer of the present invention is arranged on a continuous paper feed path while facing the inkjet head, and is continuously sucked on a suction table and a suction table for sucking continuous paper to be printed. It is provided with a feed mechanism for feeding paper in its length direction, and a pair of paper holding members arranged on a suction table to allow feeding of continuous paper and prevent the floating of both edges in the width direction of continuous paper. The paper holding member has a holding plate formed in a thin plate shape, and the holding plate is arranged so as to fit in the clearance between the ink ejection surface of the inkjet head and the continuous paper . ..

According to this configuration, the feed mechanism feeds the continuous paper in the length direction thereof, and at that time, the suction table that sucks the continuous paper by air maintains the state in which the continuous paper is sucked. In this continuous paper feeding operation, the pair of paper holding members prevent the floating of both edges in the width direction of the continuous paper, so that the continuous paper maintains flatness over the entire area including the edges on the suction table. do. Further, by providing the paper holding member, the suction force of the suction table can be made relatively small, and the influence on the ink bending due to the continuous paper feed and the air leak can be minimized.
Further, even if the main / sub-scanned inkjet head moves to the position of the holding plate, it is possible to prevent the inkjet head from interfering with the holding plate. This can also prevent the print area from being constrained. It is preferable that the holding plate is contained in the margin in the width direction of the continuous paper.

Claims (12)

A suction table that faces the inkjet head and is disposed on a continuous paper feed path, and sucks the continuous paper for printing by air;
A feed mechanism for feeding the continuous paper in its length direction while being sucked by the suction table;
Wherein disposed in the suction table, and a pair of paper pressing member for preventing the floating of the edges in the width direction of the continuous paper while permitting feeding of said continuous paper,
The paper pressing member has a pressing plate formed in a thin plate shape,
The paper feeding device for an ink jet printer, wherein the pressing plate is disposed so as to fit in a clearance between the ink ejection surface of the ink jet head and the continuous paper . 2. The paper feeding device for an ink jet printer according to claim 1 , wherein the paper pressing member has a guide portion for guiding the continuous paper in a state where the position of the continuous paper is regulated in the width direction. In the continuous paper, a plurality of types having different widths are prepared,
The paper feeding device for an ink jet printer according to claim 1 , wherein the paper pressing member is configured to be movable forward and backward in the width direction of the continuous paper. A suction table that faces the inkjet head and is disposed on a continuous paper feed path, and sucks the continuous paper for printing by air;
A paper feed mechanism that feeds the continuous paper in the length direction in a state of being sucked by the suction table;
The suction table has a number of suction holes arranged in an array,
Of the plurality of suction hole rows along the length direction of the continuous paper, two suction hole rows for sucking both edges in the width direction of the continuous paper are arranged close to both ends in the width direction of the continuous paper. A paper feeding device for an ink jet printer. In the continuous paper, a plurality of types having different widths are prepared,
The two suction holes column for sucking the widthwise edges of the continuous paper in each width, claim 4, characterized in that it is disposed respectively near the widthwise ends of the continuous paper widths A paper feeding device for an ink jet printer as described in 1. 6. The ink jet printer according to claim 5 , further comprising width restricting means capable of changing the width of the feed path corresponding to the continuous paper of each width, with one end in the width direction being a fixed position. Paper feeder. A suction table that faces the inkjet head and is disposed on a continuous paper feed path, and sucks the continuous paper for printing by air;
A feed mechanism that feeds the continuous paper in the length direction in a state of being sucked by the suction table;
The suction table has a plurality of suction holes corresponding to the maximum width continuous paper among a plurality of types of continuous paper having different widths,
A paper feeding device for an ink jet printer, comprising a closing plate for closing a plurality of suction holes separated from the continuous paper of each width. 8. The paper feeding device for an ink jet printer according to claim 7 , wherein the closing plate is configured to be movable forward and backward in the width direction of the continuous paper. The suction table has a suction plate in which the multiple suction holes are formed,
The paper feeding device for an ink jet printer according to claim 7 or 8 , wherein the closing plate faces the back side of the suction plate and closes the plurality of suction holes. 10. A width regulating means capable of changing the width of the feed path corresponding to the continuous sheets of each width, with one end in the width direction being a fixed position . A paper feeding device for an ink jet printer as described in 1. The paper feeding device for an ink jet printer according to claim 4 , wherein the plurality of suction holes are arranged in a staggered pattern. An ink jet printer comprising the paper feeding device for an ink jet printer according to claim 1 .