JP6565424B2 - Paper issuing device and paper conveying method - Google Patents

Description

  The present invention relates to a paper issuing device and a paper conveying method suitable for use in a label printer or the like using a mountless label paper.

  2. Description of the Related Art Conventionally, a label printer using a mountless label sheet in which one side is an adhesive side and the other side is a printing side is used. This type of label printer is configured to feed out the mountless label paper from the label roll body around which the mountless label paper is wound, and to perform printing using the thermal head on the printing surface of the fed mountless label paper. Yes. Use of mount-less label paper eliminates the need for mount and reduces the size and weight of the label roller, reducing the amount of dust (peeling paper), downsizing the label printer, and reducing transportation costs. .

JP-A-9-48414

  Mountless label paper is made by applying a release agent to the surface (printing surface) of the thermal paper and applying an adhesive to the back surface (adhesive surface) of the thermal paper without using the mount (release paper). This is wound directly to make the label roll body.

  For this reason, as shown in FIG. 9, when the mountless label paper 301 is pulled away from the label roll main body 300 and fed out, a part of the adhesive layer 301b on the back surface of the separated mountless label paper 301 is peeled off at the separation portion a1. As a result, there is a possibility that the glue residue A may remain on the printing surface 301a on the surface of the mountless label paper 301 on the side wound around the label roll main body 300.

  As described above, when printing is performed using the thermal head in the next process with the glue residue A remaining on the print surface 301a of the unpaid mount label paper 301, the glue residue A adheres to and accumulates on the thermal head. This causes a problem that printing defects (print rubbing, missing prints, etc.) occur in printing on the mountless label paper 301.

  The present invention has been made in view of the above points, and an object of the present invention is to remove glue residue and dirt adhering to the surface of a paper roll main body (label roll main body, etc.) when the paper is fed out with a simple configuration and method. An object of the present invention is to provide a paper issuing device and a paper conveying method.

The present invention provides a paper issuing device that issues a sheet from a paper roll main body on which a belt-like paper having a back surface formed of an adhesive surface is wound, and issues a sheet-like paper, a holding unit that holds the paper roll main body, and the holding Separating means for once pulling out the paper fed out from the paper roll main body held by the means and re-contacting the adhesive surface of the paper once pulled away with the surface of the paper roll main body held by the holding means; It is characterized by.
When the paper is once separated from the paper roll body, a part of the adhesive may be peeled off from the adhesive surface of the paper on the separated side, and may adhere to the surface of the lower paper roll body. Is removed and adhered to the adhesive surface side of the re-contacted paper when the adhesive surface of the paper once separated comes into contact with the surface of the paper roll body. Thereby, the paste residue can be removed before feeding to the next step.
Thereby, for example, if the next process is a printing process using a thermal head, adhesion of glue residue to the thermal head can be reduced, and the phenomenon that the glue residue is accumulated in the thermal head can be reduced. it can. For this reason, generation | occurrence | production of a printing defect can be suppressed. Moreover, since removal of glue residue can be realized with a simple configuration, it is economical.

Further, the present invention is characterized in that the separating means is positioned at a position for once separating the paper, upstream of the paper feeding direction away from the paper roll main body held by the holding means.
That is, for example, the separating unit positions the upstream side of the rotation center axis of the sheet roll body with respect to the sheet feeding direction.

Further, the present invention is characterized in that the separating means rotates in the feeding direction in accordance with the feeding of the sheet from the sheet roll body held by the holding means to the next process.
As a result, the feeding of the paper becomes smooth and the glue residue and dirt on the paper surface can be efficiently removed.

Further, according to the present invention, when the separating means holds the paper roll main body on the holding means, the holding means is positioned above the holding shaft of the holding means, while the paper roll main body is held on the holding means and repeats. When the paper is fed from the paper roll main body to the next process by the take-out means, it is located below the holding shaft of the holding means.
That is, since the separating means is positioned above the holding shaft of the holding means when the paper roll body is set, it is easy to set the paper roll body to the holding means. Further, since the separating means is positioned below after setting the paper roll main body, it is possible to reliably re-contact the paper once separated from the paper roll main body to the surface of the paper roll main body.

Further, the present invention is characterized in that the pulling means displaces the position according to the diameter of the paper roll main body which changes according to the feeding.
By providing the mechanism for displacing the position of the separating means in this way, the re-contact of the sheet once separated from the sheet roll body to the surface of the sheet roll body can be performed more reliably at a suitable position.

Further, the present invention further includes pressing means that contacts the paper roll main body at a position where the paper roll main body is once separated from the paper roll main body by the separating means and re-contacted with the surface of the paper roll main body. It is said.
By providing the pressing means, it is possible to more reliably remove glue residue, dirt, etc. on the paper surface.

The present invention also relates to a paper transport method for feeding paper from a paper roll main body wound with a belt-like paper having an adhesive surface on the back side to the next process, and for feeding the paper from the paper roll main body to the paper roll main body. It is further characterized in that the paper is transported by pulling it apart once and bringing the adhesive surface of the paper that has been pulled away into contact with the surface of the paper roll body.
When the paper is once separated from the paper roll body, a part of the adhesive may be peeled off from the adhesive surface of the paper on the separated side, and may adhere to the surface of the lower paper roll body. Is removed and adhered to the adhesive surface side of the re-contacted paper when the adhesive surface of the paper once separated comes into contact with the surface of the paper roll body. Thereby, the paste residue can be removed before feeding to the next step.
Thereby, for example, if the next process is a printing process using a thermal head, adhesion of glue residue to the thermal head can be reduced, and the phenomenon that the glue residue is accumulated in the thermal head can be reduced. it can. For this reason, generation | occurrence | production of a printing defect can be suppressed. Further, since removal of glue residue can be realized by a simple method, it is economical.

1 is a perspective view of a label printer 1. FIG. 2 is a functional block diagram of the label printer 1. FIG. 1 is a schematic configuration diagram of a printing apparatus 10. FIG. 6 is an explanatory diagram of a method for storing the label roll body 31 in the printing apparatus 10. FIG. 6 is an explanatory diagram of a method for storing the label roll body 31 in the printing apparatus 10. FIG. 6 is a diagram showing a state when label paper 33 is fed out from a label roll body 31. FIG. 6 is an explanatory diagram for explaining the reason why the position of the sheet separating roller 37 is positioned below. It is a schematic block diagram of printing apparatus 10-2. FIG. 10 is an explanatory view of a conventional problem when feeding a mountless label sheet 301 from a label roll main body 300;

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a label printer (weighing value adding machine, product data processing apparatus) 1 including a printing apparatus 10 to which a paper issuing apparatus according to an embodiment of the present invention is applied. This label printer 1 is a weighing price label printer, for example, a device that is installed in a backyard of a store and issues labels to be attached to various products or product containers. As shown in the figure, the label printer 1 has a display unit 5 and an operation unit 7 installed on the upper surface of the base unit 3, and a printing device 10 is arranged on the front surface of the base unit 3. Are connected by a cable (may be wireless). Then, after making desired settings (for example, setting of the processing date, expiry date, etc.) using the display unit 5 and the operation unit 7, the product after processing, arrangement, and packaging is placed on the weighing unit 9 and measured. The price and the like are calculated, and the content and price are displayed on the display unit 5. When this measurement is completed, a label (in this example) in which desired printing is performed and cut to a predetermined length from the label issuing port 11 of the printing apparatus 10 by pressing the print key of the operation unit 7 or the like. Is a mountless label).

  The printing apparatus 10 has a label issuing port 11, and a lock release lever 13 for pulling out the drawer 14 of the printing apparatus 10 toward the front thereof. When the following paper roll body 31 for label printing stored in the printing apparatus 10 is replaced, the drawer portion of the printing apparatus 10 is unlocked by lifting the lock release lever 13 upward. Pull out 14 toward the front and replace the paper roll body. And if the drawer part 14 is pushed in, the said lock release lever 13 will be locked again, and it will return to the original state shown in FIG.

  FIG. 2 is a diagram illustrating an example of functional blocks of the label printer 1. As shown in the figure, the label printer 1 includes a CPU 15, a ROM 17, a RAM 19, the operation unit 7, the display unit 5, the weighing unit 9, a communication unit 21, and an interface 24. 29, and a print head 23, a stepping motor 25, and a cutter 27 are connected to the interface 24.

  The CPU 15 controls the operation of the label printer 1 by executing a control program on the ROM 17. The ROM 17 stores various information such as the control program. The RAM 19 stores various information such as a product file, a printing format in which a label printing format is defined, and a font file. The operation unit 7 is an input device on which an operator performs various inputs. In this example, the operation unit 7 performs key input. The display unit 5 is a liquid crystal display that displays various types of information (such as a product name to be printed and a date and time). This liquid crystal display is a touch panel and is also used as the operation unit 7. The weighing unit 9 is a device that measures the weight of the product placed on the weighing pan, and the measurement result is stored in the RAM 19. The communication unit 21 is for communicating with other devices such as a management device (not shown). The print head 23 is driven based on a command from the CPU 15 and heats the printing paper to print. The stepping motor 25 is driven based on a command from the CPU 15, and feeds paper for printing by driving a platen roller 39 described below. The cutter 27 cuts the printed sheet into a sheet based on the instruction of the CPU 15. The name of the product, the name of the production area, the price, the raw material, the additive, the barcode, etc. are printed on the label. The print head 23, the stepping motor 25, and the cutter 27 are components that constitute the drive system of the printing apparatus 10.

  FIG. 3 is a schematic configuration diagram of a printing apparatus 10 configured using the embodiment of the present invention. As shown in the figure, the printing apparatus 10 is capable of rotating a paper roll main body (hereinafter referred to as “label roll main body”) 31 around which a belt-shaped paper (hereinafter referred to as “label paper”) 33 is wound, and a label roll main body 31. A roll loading unit 35 stored in the printer, a paper separating roller (separating means) 37 installed in the vicinity of the label roll main body 31, and a print head that performs printing while feeding the label paper 33 fed out from the label roll main body 31. 23 and a platen roller 39, a cutter 27 installed downstream of the printing unit 41, and a reverse conveying roller 43 installed between the roll loading unit 35 and the printing unit 41. Configured.

  The label paper 33 is a long paper strip, and is a mountless label paper in which one surface is a printing surface 33a and the other surface is an adhesive surface 33b coated with an adhesive. The label paper 33 is composed of thermal paper, and a release agent is applied to the surface of the printing surface 33a so that the label roll body 31 is wound directly in a roll shape without using a mount (release paper).

  The roll loading unit 35 stores the label roll body 31 and includes a holding shaft 31a that is a holding unit that rotatably holds the stored label roll body 31. The paper separating roller 37 is installed in the vicinity of the label roll body 31 and is configured to rotate in conjunction with (synchronize with) the rotational drive of the platen roller 39. Further, as shown by the solid line in FIG. 3, the label roll main body loaded in the roll loading unit 35 is installed at the position where the paper separating roller 37 is loaded when the label roll main body 31 is loaded in the roll loading unit 35 and the label paper 33 is fed out. When the diameter 31 is the maximum diameter, it is a position in the vicinity of the outer periphery that does not contact the outer periphery, and at least the center L2 of the paper separating roller 37 (preferably the paper separating) if the center L1 of the holding shaft 31a of the roll loading unit 35 This is the position where the entire roller 37) is located downward. On the other hand, when the label roll main body 31 is not loaded in the roll loading unit 35, in other words, when the label roll main body 31 is to be loaded into the roll loading unit 35, the installation position (initial position) of the sheet separating roller 37 is When the label roll body 31 loaded in the roll loading unit 35 has a maximum diameter, as shown by a dotted line above the left side of the label roll body 31 in FIG. At least the center L2 of the paper separating roller 37 (preferably the entire paper separating roller 37) is located above the center L1 of the holding shaft 31a of the loading unit 35. That is, the sheet separating roller 37 is configured to be movable up and down in an arc shape. When the label roll main body 31 is loaded in the roll loading unit 35 and held by the holding shaft 31a, the sheet separating roller 37 is located above the holding shaft 31a. 3 is located at the initial position on the left side of the label roll main body 31 shown in FIG. 3, and when loading and feeding, it passes through the upper right position (shown by a dotted line) of the label roll main body 31 shown in FIG. It is configured to be positioned below. The paper pulling roller 37 is moved, for example, when the drawer 14 of the printing apparatus 10 is pulled forward in a state where the lock release lever 13 of the printing apparatus 10 shown in FIG. Detects that the lock has been released by a detection sensor or the like, and moves the paper pulling roller 37 forward and upward by a motor or other drive mechanism, while pressing the drawn-out portion 14 to release the lock release lever 13. When locked, the lock may be detected by a detection sensor or the like, and the sheet separating roller 37 may be moved downward in the back by a motor or other drive mechanism. Further, the paper separating roller 37 may be moved manually as appropriate. The outer peripheral surface of the paper separating roller 37 is coated with a release agent, so that the adhesive on the adhesive surface 33b of the label paper 33 is not adhered, thereby smoothing out the label paper 33. As another method for preventing the label paper 33 from adhering to the paper separating roller 37, the paper separating roller 37 itself or the outermost layer portion thereof may be formed of an easily peelable member.

  The print head 23 is constituted by a thermal head, and prints on the printing surface 33a of the label paper 33 transferred on the heat generating portion 23a by selectively generating heat at the heat generating portion 23a of the print head 23. The platen roller 39 is a feeding unit that sandwiches the label paper 33 in cooperation with the print head 23 and is rotated by the stepping motor 25 shown in FIG. (Feed out). As with the paper separating roller 37, the outer peripheral surface of the platen roller 39 is coated with a release agent so that the adhesive on the adhesive surface 33b of the label paper 33 does not adhere. As another method for preventing the label paper 33 from adhering to the platen roller 39, the platen roller 39 itself or the outermost layer portion thereof may be formed of an easily peelable member.

  The cutter 27 includes a pair of upper and lower belt-like blade bodies 27a and 27b, and cuts the printed label paper 33 into a sheet. Specifically, a fixed blade 27b disposed below the label paper 33 fed out linearly and a movable blade 27a disposed above the label paper 33 and moving up and down toward the fixed blade 27b are provided. Configured. The movable blade 27a is driven by driving means such as a motor (stepping motor).

  The reverse conveyance roller 43 is composed of a pair of rollers 43a and 43b for pulling back the label paper 33 fed out by the platen roller 39 in the reverse direction, and feeds out the label paper 33 held between the rollers 43a and 43b. Used to move in the opposite direction to the direction. There is a distance between the heat generating portion 23a of the print head 23 and the cutter 27, and the label paper 33 in this portion becomes a dead space that cannot be printed. Therefore, if the reverse conveyance roller 43 is driven so that the leading edge (cut edge) of the label paper 33 is returned from the position of the cutter 27 to a position near the heat generating portion 23a, printing is performed from this position. Waste can be eliminated.

  4 and 5 are explanatory views of a method of storing the label roll main body 31 in the printing apparatus 10. That is, as described above, when the drawer 14 of the printing apparatus 10 is pulled forward while the lock by the lock release lever 13 of the printing apparatus 10 is released, a detection sensor or the like detects that the lock has been released. Then, the sheet separating roller 37 is moved to an initial position in front of the label roll body 31. In this state, the label roll body 31 is housed in the roll loading unit 35, and the label roll body 31 is held by the holding shaft 31a. Then, the label sheet 33 is pulled out from the label roll body 31 and the pulled out label sheet 33 is fed out toward the printing unit 41.

  When the label roll main body 31 is loaded, if the paper separating roller 37 is positioned on the lower back side of the label roll main body 31, the label paper 33 pulled out from the label roll main body 31 is moved to the back (lower) of the roll loading section 35. Therefore, the work is difficult to perform.

  After the label roll body 31 is loaded, when the drawer 14 of the printing apparatus 10 is pushed in and the lock release lever 13 is locked, a detection sensor or the like detects that the lock is released, and as shown in FIG. The separation roller 37 passes along the upper side of the label roll main body 31 in an arc shape, passes through the back side of the label roll 31 shown in FIG. 4, and then moves to the lower back side of the label roll main body 31 as shown in FIG. To do. As a result, the label paper 33 once separated from the label roll body 31 by the paper separation roller 37 comes into contact again on the upper surface of the label roll body 31. This adhesion length H1 is longer than the adhesion length H2 (see FIG. 4) in the state shown in FIG. 4 in which the paper separating roller 37 is located on the back side of the label roll body 31.

  After the label roll main body 31 is loaded as described above, if the printing apparatus 10 shown in FIG. 3 is driven and the platen roller 39 is rotationally driven to generate heat at the heat generating portion 23a, the label paper 33 is printed while being fed out. The The label paper 33 which has been fed out and printed by a predetermined length is cut into sheets by a cutter 27.

  FIG. 6 is a diagram showing a state when the label paper 33 is fed out from the label roll body 31. As shown in the figure, when the label paper 33 is peeled off from the surface of the label roll main body 31 at the point p1 by the paper separating roller 37, an adhesive that forms an adhesive surface 33b on the back surface of the peeled label paper 33. May remain as glue residue A on the printing surface 33a of the label paper 33, which is the surface on the label roll body 31 side. The reason why the glue residue A remains on the surface of the label roll main body 31 is that the printing surface 33a of the label paper 33 on the label roll main body 31 side has a higher adhesive force than the label paper 33 to be separated. Thus, since the release agent is applied to the surface of the printing surface 33a, the adhesive force of the glue residue A to the printing surface 33a is weak.

  The glue residue A moves on the surface of the label roll body 31 in the rotational direction as the label sheet 33 is fed out. Then, the separated label paper 33 is again brought into contact with the surface of the label roll main body 31 to which the glue residue A has adhered, so that the adhesive residue A adheres to the label paper 33 on the separated side at this time. Adhere to the surface 33b. When the label paper 33 is pulled away from the surface of the label roll main body 31 again at the point p3, the glue residue A sticks to the adhesive surface 33b of the label paper 33 to be separated and is transported along with the label paper 33 toward the printing unit 41. To go. Since the adhesive surface 33b of the label paper 33 to be re-adhered to the glue residue A is a position different from the position of the adhesive surface 33b from which the adhesive residue A has been peeled off, the adhesive residue A adheres to the adhesive surface 33b from which the adhesive has not been removed. To do. Therefore, the adhesive strength is strong, and most of the glue residue A is affixed to the adhesive surface 33b side of the label paper 33 on the separated side.

  As a result, the glue residue A is removed from the surface of the label roll body 31, and the adhesive residue A does not exist on the printing surface 33a of the label paper 33. That is, the glue residue A can be removed before feeding to the next process (printing process). For this reason, inconvenience due to the residue of the glue residue A remaining on the printing surface 33a of the label paper 33, that is, adhesion of the adhesive residue A to the heat generating portion 23a of the print head 23 can be reduced. 23 can be reduced. For this reason, generation | occurrence | production of a printing defect can be suppressed. Further, it is economical because the glue residue A can be removed with a simple structure in which the sheet separating roller 37 is installed.

  As described above, the paper separating roller 37 is rotationally driven in conjunction with (synchronized with) the rotational driving of the platen roller 39. That is, the paper separating roller 37 is held on the holding shaft 31a by the platen roller 39. Since the label paper 33 is rotated in the feeding direction as the label paper 33 is fed from the label roll body 31 to the next process, the feeding of the label paper 33 becomes smooth, and the glue residue A and dirt on the surface of the label paper 33 are more efficiently produced. Can be removed.

  The reason why the sheet separating roller 37 is positioned above the holding shaft (holding means) 31a when the label roll main body 31 is loaded in the roll loading section 35 and held on the holding shaft (holding means) 31a is described above. As described above, the label roll body 31 is easily set on the holding shaft 31a. On the other hand, the label roll body 31 is held by the holding shaft 31a and held by the platen roller (feeding means) 39 on the holding shaft 31a. As described above, when the label paper 33 is fed from the label roll main body 31 to the next process, the reason for positioning the paper separating roller 37 below the holding shaft 31a is that the label roll main body of the label paper 33 once separated. This is because the position p2 of the re-adhesion to 31 is moved downward, so that the re-adhesion is performed reliably.

  That is, as shown in FIGS. 4 and 5, the position p3 at which the reattached label paper 33 is separated from the label roll body 31 does not change greatly even if the position of the paper separating roller 37 is changed. The position p2 at which the paper 33 is re-adhered to the label roll body 31 varies greatly by changing the position of the paper separating roller 37, and the re-adhering position p2 is lowered as the paper separating roller 37 is positioned downward. As described above, the re-bonded length H1 can be increased. If the length of re-adhesion becomes longer, the glue residue A on the surface of the label roll body 31 can be more reliably adhered and removed to the adhesive surface 33b of the re-adhered label paper 33.

  In addition, as shown in FIG. 7, if the position of the sheet separating roller 37 is positioned downward, the re-adhesion can be reliably performed even when the diameter of the label roll body 31 is reduced. That is, if the sheet separating roller 37 is disposed at an upper position indicated by a dotted line in FIG. 7, the label sheet 33 cannot be reattached to the surface of the label roll body 31 as indicated by the dotted line in FIG. .

  Further, in this printing apparatus 10, the position of the paper separating roller 37 is configured to be movable in two places, an upper position and a lower position. The position of the label roll body 31 may be displaced continuously or in multiple stages according to the diameter of the label roll body 31 that changes according to the feeding of the label paper 33 by 39. In other words, in the above-described embodiment, the configuration is such that the paper separating roller 37 is rotationally driven in conjunction with the rotation of the platen roller 39, but the position of the paper separating roller 37 is further interlocked with the rotation of the platen roller 39. The position p2 at which the label paper 33 is re-adhered to the label roll body 31 is always set as the diameter of the label roll body 31 is reduced gradually (continuously or in multiple stages). You may make it be an optimal position. As a mechanism for interlocking the position movement of the sheet separating roller 37 with the rotation of the platen roller 39, the rotation amount of the platen roller 39 is detected by the detecting means, and the position of the sheet separating roller 37 is motored according to the rotation amount. A configuration in which the platen roller 39 is moved by a driving means such as a mechanism, and a mechanism in which the rotation of the platen roller 39 is transmitted to the moving mechanism of the paper separating roller 37 using a mechanical interlocking means such as a gear or a link mechanism is considered. It is done. If a mechanism for displacing the position of the sheet separating roller 37 is provided in this manner, the label sheet 33 once separated from the label roll body 31 is more reliably re-contacted to the surface of the label roll body 31 at a suitable position. be able to. On the other hand, in order to simplify the mechanism, the position of the sheet separating roller 37 may be fixed only at a desired position.

  FIG. 8 is a schematic configuration diagram of a printing apparatus 10-2 to which a paper issuing apparatus according to another embodiment of the present invention is applied. In the figure, the same or corresponding parts as those of the printing apparatus 10 shown in FIG. Note that matters other than those described below are the same as those in the embodiment shown in FIGS. This printing apparatus 10-2 is different from the printing apparatus 10 in that the position (adhesion length) is once separated from the label roll body 31 by the paper separating roller 37 and re-contacted with the surface of the label roll body 31. A pressing roller (pressing means) 45 that contacts the label roll main body 31 (that is, on the reattached label paper 33) and rotates in the feeding direction is further provided at a predetermined position in H1.

  The pressing roller 45 is rotatable and is configured to elastically contact the surface of the label roll main body 31 with a predetermined elastic contact force, thereby rotating (driven) together with the rotation of the label roll main body 31. The pressing roller 45 is configured to slide in the radial direction of the label roll main body 31 and is urged against the surface of the label roll main body 31 by the resilient means 47. In other words, even if the radius of the label roll main body 31 changes due to the use of the label paper 33, the pressing roller 45 moves following this, and always repels the surface of the label roll main body 31 with a predetermined elastic force. It is configured.

  If the pressing roller 45 is brought into elastic contact with the surface of the label roll body 31, the label paper 33 can be re-adhered to the surface of the label roll body 31 more reliably. Further, the pressure contact force of the label paper 33 to the surface of the label roll body 31 can be easily set to a desired pressure contact force, and the glue residue A can be more reliably adhered to the adhesive surface 33b of the label paper 33 to be fed out. Thus, it is possible to more reliably remove the glue residue A, dirt, etc. on the surface of the label paper 33 (printing surface 33a). When the pressing roller 45 is installed, the installation position of the paper separating roller 37 may not be installed below the label roll body 31 (that is, it may be installed above the back side as indicated by the dotted line in FIG. 8). ), The label sheet 33 can be reliably re-adhered to the surface of the label roll body 31. In other words, if the position of the sheet separating roller 37 is set downward as in the printing apparatus 10, the pressing roller 45 used in the printing apparatus 10-2 becomes unnecessary. The pressing means is not necessarily a pressing roller, and may be, for example, a rod-shaped member that presses the label roll body 31 once separated against the surface of the label roll body 31 again.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. Note that any shape or structure not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are achieved. For example, in each of the above-described embodiments, an example in which the present invention is used in a printing apparatus that prints and issues a label is shown. However, the present invention is not limited to this, and the present invention is similarly applied even when used for purposes other than labels. it can. That is, the point is that the present invention can be applied to any device and application as long as it is a paper issuing device that feeds paper from a paper roll main body wound with a belt-like paper whose back surface is an adhesive surface. In the above example, the thermal paper is used as the paper. However, other various papers such as plain paper and pressure sensitive paper may be used in addition to the thermal paper. In the above example, the platen roller is used as the sheet feeding means. However, various other feeding rollers and various feeding means other than the rollers may be used. In the above example, the paper separating roller is used as the separating means, but it may be a bar-like member or the like for simply hanging paper.

1 Label printer (machine with weighing value, product data processing device)
DESCRIPTION OF SYMBOLS 3 Base part 5 Display part 7 Operation part 9 Weighing part 10 Printing apparatus (paper issuing apparatus) 11 Label issuing port 13 Lock release lever 14 Pull-out part 15 CPU 17 ROM
19 RAM 21 Communication Unit 23 Print Head (Thermal Head) 23a Heating Unit 24 Interface 25 Stepping Motor 27 Cutter 27a, 27b Blade 29 Bus 31 Label Roll Body (Paper Roll Body)
31a Holding shaft (holding means) 33 Label paper (paper)
33a Printing surface 33b Adhesive surface 35 Roll loading section 37 Paper separating roller (separating means)
39 Platen roller (feeding means) 41 Printing unit 43 Reverse transport rollers 43a, 43b Roller A Glue residue 10-2 Printing device (paper issuing device)
45 Pressing roller (pressing means) 47 Elastic means H1, H2 Bonding length

Claims (7)

In a paper issuing device that feeds out paper from a paper roll body wound with a belt-like paper whose back side is an adhesive surface and issues a sheet-like paper,
Holding means for holding the paper roll body;
A separating means for once separating the paper fed out from the paper roll main body held by the holding means, and re-contacting the adhesive surface of the paper once pulled apart with the surface of the paper roll main body held by the holding means;
A paper issuing device comprising:   2. The position according to claim 1, wherein the separating unit is positioned at a position where the sheet is once separated on the upstream side in the sheet feeding direction away from the sheet roll body held by the holding unit. Form issuing device.   3. The paper according to claim 1, wherein the separating unit rotates in a feeding direction in accordance with the feeding of the paper to the next process from the paper roll main body held by the holding unit. Issuing device. The引離means, when to hold the paper roll body to said holding means, located above the holding shaft of the holding means, whereas the paper roll body is held in said holding means, by Repetitive detecting means said paper 4. The sheet issuing apparatus according to claim 1, wherein the sheet issuing apparatus is positioned below a holding shaft of the holding unit when the sheet is fed from the roll body to the next process.   The paper issuing device according to claim 1, wherein the separating unit displaces a position according to a diameter of the paper roll main body that changes according to the feeding.   2. The pressing device according to claim 1, further comprising a pressing unit that comes into contact with the paper roll main body at a position where the paper roll main body is once separated from the paper roll main body by the pulling unit and re-contacted with the surface of the paper roll main body. The sheet issuing apparatus according to claim 4. In the paper transport method of feeding the paper from the paper roll main body around which the belt-shaped paper having the back surface made of an adhesive surface is wound and transporting it to the next process,
A paper transporting method, wherein when the paper is fed out from the paper roll main body, the paper to be fed is once pulled away from the paper roll main body, and the paper is transported by bringing the adhesive surface of the separated paper into contact with the surface of the paper roll main body again.

Images