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EP-4434760-B1 - PRINTER

EP4434760B1EP 4434760 B1EP4434760 B1EP 4434760B1EP-4434760-B1

Inventors

  • TSUCHIYA, MOTOHITO

Dates

Publication Date
20260506
Application Date
20240221

Claims (11)

  1. A printer, comprising: a paper holding component (3) holding a roll paper wrapped in a strip-shaped paper; a printing component (4) printing on the roll paper pulled out from the paper holding component; and a box-shaped casing (2) housing the paper holding component and the printing component, wherein the box-shaped casing includes: a plate-shaped cover (23) portion constituting at least a portion of a surface provided with a paper discharge port for discharging the roll paper after printing; and a main body portion being a portion other than the cover portion, characterized in that : in an attaching structure in which the cover portion is detachably attached to the main body portion, the cover portion is configured to be attached in any direction where one of a first surface being one surface of the plate-shaped cover portion and a second surface being an other surface in a direction faces the main body portion; and the cover portion has a supporting portion (232) configured to detachably support an optional component performing a predetermined process on the roll paper in one of the first surface or the second surface, wherein the supporting portion has a hook-like shape, wherein the optional component has a supported portion having the hook-like shape supported in a state of being hooked by the supporting portion, and wherein a deviation suppressing portion for suppressing deviation due to movement in a direction of releasing the hook-like state between the supporting portion and the supported portion is further provided adjacent to the supporting portion.
  2. The printer according to claim 1, wherein the deviation suppressing portion is configured with a screw and a screw receiving portion into which the screw is screwed, and wherein a head of the screw screwed into the screw receiving portion is located at a position being in contact with the supported portion supported in the state of being hooked by the supporting portion and preventing movement of the supported portion.
  3. The printer according to claim 2, wherein the screwing direction of the screw into the screw receiving portion is a direction substantially opposite to a moving direction if the supported portion hooked on the supporting portion moves away from the supporting portion.
  4. The printer according to any one of claims 1 to 3, wherein the optional component performs a cutting process on the roll paper.
  5. The printer according to any one of claims 1 to 4, wherein the optional component is a cutting component including a driver, a fixed blade, a movable blade, a bracket, a cover, and the like.
  6. The printer according to claim 5, wherein the driver moves the movable blade up and down.
  7. The printer according to claim 5 or 6, wherein the fixed blade is configured to cooperate with the movable blade that moves up and down to interpose and cut the paper.
  8. The printer according to any one of claims 1 to 7, wherein the cutting component performs a full cut in which the roll paper is cut across an entire width thereof.
  9. The printer according to any one of claims 1 to 8, wherein the cutting component performs a partial cut in which a portion of the roll paper in the width direction is left uncut.
  10. The printer according to any one of claims 1 to 9, wherein the optional component performs peeling a label from a mount as the label is conveyed after printing.
  11. The printer according to any one of claims 1 to 10, wherein the printing component is a thermal printing component.

Description

FIELD Embodiments described herein relate generally to printers. BACKGROUND In the related art, printers have been used to print on a paper drawn from a roll paper and issue the printed paper (for example, Patent Literature 1). For such printers, a standard model is a model in which the paper outputs in a strip shape without cutting or peeling, and in some cases, the selling method that is to provide functions such as cutting and peeling as an option that can be attached to the standard model may be taken. If a plurality of models are developed using the method described above, a structure is required to enable options to be attached and detached. The members realizing this structure are generally prepared separately, together with optional units, rather than as necessary members to enable a standard model printer to function. It is not preferable if there are members that need to be prepared separately in addition to the optional units, because the cost of materials and the cost requiring the manufacturing increase, and the management of the members is also required. US-A-2020/130383 discloses the preamble of claim 1. DISCLOSURE OF THE INVENTION To this end, a printer according to appended claims is provided. DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating an example of an outer appearance of a printer in a standard state according to an embodiment;FIG. 2 is a diagram illustrating an example of an internal structure of the printer;FIG. 3 is a diagram illustrating an example of the outer appearance of the printer with a cutting unit;FIG. 4 is a diagram illustrating an example of a structure of a portion of the printer including the front cover;FIG. 5 is a diagram illustrating an example of a structure of a portion of the printer including a front cover;FIG. 6 is a diagram illustrating a state illustrated in FIGS. 4 and 5 with a casing removed;FIG. 7 is a diagram illustrating a state in which the front cover is removed from the state illustrated in FIG. 6 and turned over so that a supporting portion faces outward;FIG. 8 is a diagram illustrating a state in which the front cover with the supporting portion tabulated is attached;FIG. 9 is an exploded perspective view illustrating an example of a structure of the cutting unit;FIG. 10 is a diagram illustrating an example of a structure of a portion including the front cover of the printer with the cutting unit;FIG. 11 is a diagram illustrating a state in which the cutting unit is supported by the supporting portion;FIG. 12 is a diagram illustrating a state in which the cutting unit is supported by the supporting portion;FIG. 13 is a diagram illustrating a positional relationship with respect to a peeling unit and a frame of the peeling unit; andFIG. 14 is a diagram illustrating an example of a printer with a peeling unit, in a state of the lower casing removed. DETAILED DESCRIPTION The problem to be solved by the present invention is to provide a printer which can realize a structure of enabling a unit for providing optional functions to be detachable with a structure included in a standard model. In general, according to one embodiment, a printer includes: a paper holding unit holding a roll paper wrapped in a strip-shaped paper; a printing unit printing on the paper pulled out from the paper holding unit; and a box-shaped casing housing the paper holding unit and the printing unit, wherein the casing includes: a plate-shaped cover portion constituting at least a portion of a surface provided with a paper discharge port for discharging the paper after printing; and a main body portion being a portion other than the cover portion, wherein, in an attaching structure in which the cover portion is detachably attached to the main body portion, the cover portion can be attached in any direction where one of a first surface being one surface of the plate-shaped cover portion and a second surface being the other surface in a direction faces the main body portion, and wherein the cover portion has a supporting portion detachably supporting an optional unit performing a predetermined process on the paper in any one of the first surface or the second surface. Embodiments will be described with reference to the drawings. FIG. 1 is a diagram illustrating an example of an outer appearance of a printer 1 in a standard state according to an embodiment. FIG. 2 is a diagram illustrating an example of an internal structure of the printer 1. The printer 1 is an example of a standard model printer, and includes a casing 2, a display operation portion 103, an open/close button 104, and a paper discharge port 105. The side where the paper discharge port 105 is provided is a front surface side of the printer 1, and a side opposite to a surface where the paper discharge port 105 is provided is a rear side. The casing 2 is a box-shaped container and includes an upper casing 21 and a lower casing 22. The upper casing 21 has a downward opening, and the lower casing 22 has an