# US 2019/0315136 A1 · Printer

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2019/0315136 A1
- Document ID: US20190315136A1
- Status: Published application
- Kind: A1
- Application number: 16/382,143
- Filed: 2019-04-11
- Published: 2019-10-17
- Earliest claimed: 2018-04-12
- Assignees: Mimaki Engineering Co., Ltd.
- Applicants: Mimaki Engineering Co., Ltd.
- Inventors: Tomonori Amari
- Web page: https://patentgrep.com/patent/US20190315136A1

## CPC

- B41J 15/16: Means for tensioning or winding the web
- B41J 15/04: Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
- B65H 18/103: {Reel-to-reel type web winding and unwinding mechanisms}
- B41J 15/165: {for tensioning continuous copy material by use of redirecting rollers or redirecting nonrevolving guides}
- B65H 23/16: by weighted or spring-pressed movable bars or rollers
- B65H 2301/41704: involving layout of production or storage facility
- B65H 2511/14: Diameter, e.g. of roll or package
- B65H 2801/06: Office-type machines, e.g. photocopiers
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES

## Abstract

A printer includes a printer main body that performs printing on a medium, a supporting frame that supports the printer main body from a lower side, a tension applying mechanism including a tension bar that comes into contact with a medium before printing and applies a tension to the medium, and a first roll attaching portion and a second roll attaching portion to which the medium before printing wound into a roll shape is attachable. The roll attaching portion, the tension bar, and the roll attaching portion are disposed on a back side of the supporting frame and are disposed in such order from a supporting frame side; and a medium after printing is wound into a roll shape on a front side of the supporting frame. The tension applying mechanism includes a frame having a guide groove for guiding the tension bar in a vertical direction.

## Claims

### Claim 1

A printer comprising a printer main body that performs printing on a long medium, a supporting frame that supports the printer main body from a lower side, a tension applying mechanism including a tension bar that comes into contact with a medium before printing and applies a tension to the medium, and a first roll attaching portion and a second roll attaching portion to which the medium before printing wound into a roll shape is attachable, wherein
the first roll attaching portion, the tension bar, and the second roll attaching portion are disposed on one side of the supporting frame in a first direction, which is one direction in a horizontal direction, and are disposed in such order from the supporting frame side in the first direction;
a medium after printing is wound into the roll shape on another side of the supporting frame in the first direction;
assuming that the medium before printing wound into the roll shape and attached to the first roll attaching portion is a first roll and the medium before printing wound into the roll shape and attached to the second roll attaching portion is a second roll,
a maximum outer diameter of the second roll is larger than a maximum outer diameter of the first roll; and
the tension applying mechanism includes a frame in which a guide groove having a slit shape for guiding the tension bar in a vertical direction is formed.

### Claim 2

A printer comprising a printer main body that performs printing on a long medium, a supporting frame that supports the printer main body from a lower side, a tension applying mechanism including a tension bar that comes into contact with a medium after printing and applies a tension to the medium, and a first roll attaching portion and a second roll attaching portion to which the medium after printing wound into a roll shape is attachable, wherein
the first roll attaching portion, the tension bar, and the second roll attaching portion are disposed on one side of the supporting frame in a first direction, which is one direction in a horizontal direction, and are disposed in such order from the supporting frame side in the first direction;
a medium before printing is wound into the roll shape on another side of the supporting frame in the first direction;
assuming that the medium after printing wound into the roll shape and attached to the first roll attaching portion is a first roll and the medium after printing wound into the roll shape and attached to the second roll attaching portion is a second roll,
a maximum outer diameter of the second roll is larger than a maximum outer diameter of the first roll; and
the tension applying mechanism includes a frame in which a guide groove having a slit shape for guiding the tension bar in a vertical direction is formed.

### Claim 3 (depends on 1)

The printer according to claim 1, wherein the guide groove is inclined so as to approach the supporting frame towards the lower side.

### Claim 4 (depends on 1)

The printer according to claim 1, further comprising a supporting body including a supporting member to which a lower end of the supporting frame is fixed, wherein
the frame is detachably attached to the supporting body.

### Claim 5 (depends on 2)

The printer according to claim 2, wherein the guide groove is inclined so as to approach the supporting frame towards the lower side.

### Claim 6 (depends on 2)

The printer according to claim 2, further comprising a supporting body including a supporting member to which a lower end of the supporting frame is fixed, wherein
the frame is detachably attached to the supporting body.