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US 11,590,764 B2Granted
Printing apparatus and printing method for suppressing contamination on recording medium
AssigneeSCREEN Holdings Co., Ltd.
InventorsShinsuke Yamashita, Hiroyuki Kajiya
Life of this patent
Estimating the term…
Abstract
An image is printed on the front surface M1 by discharging the inks to the front surface M from the discharge heads 321 (first head) facing the front surface M1 (recording surface) of the printing medium M from above. Thus, the inks discharged from the discharge heads 321 partially become mist to possibly produce ink mist. Accordingly, the ink cover 51 (first cover) is arranged between the discharge heads 321 and the front surface M1 of the printing medium M before the discharge heads 321 discharges the inks to the printing medium M. By providing the ink cover 51 for the front surface M1 of the printing medium M before printing in this way, the adhesion of the ink mist to this front surface M1 can be suppressed.
Claims13
A printing apparatus comprising:
- a conveyor which conveys a printing medium in the form of a long strip having a recording surface and a non-recording surface opposite to the recording surface;
- a first head facing the recording surface of the printing medium being conveyed by the conveyor from above, the first head discharging an ink to the recording surface;
- and
- a first cover arranged between the recording surface of the printing medium being conveyed by the conveyor before the first head discharges the ink to the printing medium and the first head,
- wherein the conveyor includes:
- an ascending conveyor which conveys the printing medium from a lower side to an upper side of the first head on one side of the first head, out of the one side and other side opposite to the one side in a horizontal direction;
- a first upper conveyor which conveys the printing medium conveyed by the ascending conveyor from the one side to the other side above the first head;
- a descending conveyor which conveys the printing medium conveyed by the first upper conveyor from the upper side to the lower side of the first head on the other side of the first head;
- and
- a first printing conveyor which conveys the printing medium conveyed by the descending conveyor from the other side to the one side of the first head below the first head,
- wherein the recording surface of the printing medium being conveyed by the ascending conveyor is facing toward the other side,
- wherein the recording surface of the printing medium being conveyed by the first upper conveyor is facing downward,
- wherein the recording surface of the printing medium being conveyed by the descending conveyor is facing toward the one side,
- wherein the recording surface of the printing medium being conveyed by the first printing conveyor is facing upward,
- wherein the first head discharges the ink to the recording surface of the printing medium being conveyed by the first printing conveyor, and
- wherein the first cover includes a one-side separation wall provided between the printing medium being conveyed by the ascending conveyor and the first head in the horizontal direction.
13 more elements
A printing apparatus comprising:
- a conveyor which conveys a printing medium in the form of a long strip having a recording surface and a non-recording surface opposite to the recording surface;
- a first head facing the recording surface of the printing medium being conveyed by the conveyor from above, the first head discharging an ink to the recording surface;
- a first cover arranged between the recording surface of the printing medium being conveyed by the conveyor before the first head discharges the ink to the printing medium and the first head;
- a housing which houses the first head, the conveyor and the first cover;
- and
- an exhaust fan which generates an air flow flowing in a depth direction orthogonal to a conveying direction of the printing medium by the conveyor and a vertical direction in the housing to exhaust the ink in a mist state from the housing.
3 more elements
A printing method comprising:
- conveying, by a conveyor, a printing medium in the form of a long strip having a recording surface and a non-recording surface opposite to the recording surface;
- and
- discharging an ink to the recording surface from a first head facing the recording surface of the printing medium from above,
- wherein a first cover is arranged between the recording surface of the printing medium before the first head discharges the ink to the printing medium and the first head,
- wherein the conveyor includes:
- an ascending conveyor which conveys the printing medium from a lower side to an upper side of the first head on one side of the first head, out of the one side and other side opposite to the one side in a horizontal direction;
- a first upper conveyor which conveys the printing medium conveyed by the ascending conveyor from the one side to the other side above the first head;
- a descending conveyor which conveys the printing medium conveyed by the first upper conveyor from the upper side to the lower side of the first head on the other side of the first head;
- and
- a first printing conveyor which conveys the printing medium conveyed by the descending conveyor from the other side to the one side of the first head below the first head,
- wherein the recording surface of the printing medium being conveyed by the ascending conveyor is facing toward the other side,
- wherein the recording surface of the printing medium being conveyed by the first upper conveyor is facing downward,
- wherein the recording surface of the printing medium being conveyed by the descending conveyor is facing toward the one side,
- wherein the recording surface of the printing medium being conveyed by the first printing conveyor is facing upward,
- wherein the first head discharges the ink to the recording surface of the printing medium being conveyed by the first printing conveyor, and
- wherein the first cover includes a one-side separation wall provided between the printing medium being conveyed by the ascending conveyor and the first head in the horizontal direction.
13 more elements
Dependencies are inferred from the claim text.