WO2010081425A1

WO2010081425A1 - Paper bin and printer using the paper bin

Info

Publication number: WO2010081425A1
Application number: PCT/CN2010/070209
Authority: WO
Inventors: 丛强滋; 杨民; 汤晓杰; 张继刚
Original assignee: 山东新北洋信息技术股份有限公司
Priority date: 2009-01-19
Filing date: 2010-01-15
Publication date: 2010-07-22
Also published as: CN201362041Y

Abstract

A paper bin (10) comprises two side walls (104), a bottom plate (103) in which insertion slots (101) are arranged, and baffles (102) detachably connected with the insertion slots. The two side walls and the bottom plate constitute a reel paper containing space, which is divided by the baffles. The insertion slots are arranged in pairs to form an insertion slot group (1011, 1012). Two baffles cooperate with the insertion slot group so as to restrict the reel paper between them, therefore separating the printing paper from the side walls of the printer. This prevents the printing paper from cutting the side walls of the printer, thus avoiding noise generation during the cutting. A printer (100) using the paper bin is also disclosed.

Description

A warehouse and a printer using the same. This application claims to be Chinese patent filed on January 19, 2009, the Chinese Patent Office, application number 200920001257.3, and the invention entitled "a paper bin and a printer using the paper bin" Priority of the application, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD The present invention relates to the field of machinery, and in particular to a printer. BACKGROUND OF THE INVENTION Printers can be classified into dot matrix printers, thermal printers, and hybrid printers according to the printing principle, and are widely used in supermarkets, shopping malls, telecommunications, hospitals, and the like. A web printer uses a roll of continuous paper as a print medium to print transaction credentials for customers. Due to the large amount of work and the frequent replacement of the printing paper, in order to simplify the operation of replacing the medium, this type of printer generally does not use the support shaft to support the form of the paper roll, but uses an easy-to-paper structure to directly place the printing paper. Into the printer paper bin. The receipt printer having the easy-to-paper structure is integrally rolled by the printing paper roll at the bottom of the paper magazine so that the printing paper wound on the paper roll mandrel is output outward. When the width of the paper roll is smaller than the width of the paper bin, the paper roll will be tilted in the direction of the axis of the paper bin, causing the paper to be skewed and the printed text or image deviating from the predetermined position. In order to enable a printer having an easy-to-paper structure to use different widths of printing paper, Chinese Patent No. CN200420051933.5 proposes such a solution: As shown in Fig. 1, the reel recording paper accommodating device comprises two side walls and a bottom plate. The space for accommodating the recording paper is provided with a groove on the bottom plate, and a baffle detachably connected to the groove is provided, and the baffle is used for dividing the space for accommodating the recording paper. When it is required to print a recording paper having a width smaller than that of the left and right side walls, a baffle may be inserted into the groove to position the axial direction of the roll recording paper, that is, the roll recording paper is fixed to the baffle 50 and a side wall. Between 60, the web of recording paper of different widths is stabilized in the accommodating device. The inventors have found through research on the prior art that when printing a narrow-format medium using a printer provided in the prior art, problems such as severe paper wall wear and large printing noise are easily generated. For example, for a printer having a pair of paper feed rollers, as shown in FIG. 2a, the printing paper P is located between the driven glue stick 20 and the active rubber roller 30, and the driven rubber roller 20 is disposed above the printing paper to prevent the printing paper from being conveyed. The elastic element 40 that slips during the process. 2b is a cross-sectional view taken along line AA' of FIG. 2a, and the driven glue stick 20 presses the printing paper against the rubber roller 30 by the elastic member 40. Since the printing paper is fixed between the baffle and a side wall, the side of the rubber roller 20 and the rubber roller 30 near the side wall has the printing paper P and the other side has no paper. In none On one side of the paper, the two rubber roller faces are in direct contact. Thus, the two rubber rollers are not parallel and have a certain angle, and the driven glue stick 20 forms a certain side pressure on the printing paper P to press the printing paper P against the side wall of the printer. We know that the paper edge of the paper is generally sharper. This pressure causes the side wall of the printer to cut when the paper passes, and the long-term use causes the side wall of the printer to rupture or form a groove, and also during the printing process. Noise is emitted due to the cutting of the side walls of the printing paper. For example, for a thermal printer, there is a preset pressure between the thermal print head and the printing roller in order to ensure the print quality and the normal conveyance of the printing paper, and the printing paper is forced when printing the narrow-width printing paper. As in Figure 2b, this problem can also occur. SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a paper bin and a printer using the same, which can effectively control the printing paper by using the paper bin, and avoid the side pressure of the printing paper during the printing process. Under the action, the side wall of the printer is cut, which causes noise and causes wear and tear on the printer. In order to achieve the above object, the present invention provides a paper bin comprising a space for accommodating a paper roll composed of two side walls and a bottom plate, wherein a slot is provided on the bottom plate, and the slot is detachably connected to the slot. a baffle, the baffle is configured to divide the space for accommodating the paper roll, wherein the slots are arranged in pairs and form a slot group, and the two baffles respectively cooperate with the two slots in the slot group, the paper roll It is defined between the two baffles so that the printing paper is separated from the side walls. Preferably, the number of slot groups is at least one. Preferably, the two slots in the slot set are symmetric about the width center of the base plate. Preferably, the distance between the two baffles corresponds to the width of the paper roll. Preferably, the baffle is made of a material having a certain elasticity. Preferably, the paper bin further includes a paper end sensor for detecting the amount of remaining paper, and the paper end sensor is mounted in the side wall or the baffle of the paper bin. Preferably, the paper end sensor is a photo sensor or a mechanical sensor, and an opening is provided at a position of the baffle corresponding to the paper end sensor. According to another aspect of the present invention, there is also provided a printer comprising the above described paper bin. Preferably, the printer is a thermal printer. Preferably, the center of the paper tray floor width is aligned with the center of the printer printhead width. Preferably, the printer can be a dot matrix printer or a hybrid printer. By using the paper bin provided by the invention or the printer having the paper bin, the printing paper is separated from the side wall of the paper bin, the cutting of the side wall of the printing paper is avoided, thereby saving the maintenance cost and avoiding the noise during the cutting process. The production. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a prior art printer; FIG. 2a is a schematic view of a paper feeding process in the prior art; FIG. 2b is a cross-sectional view taken along line A-A' of FIG. 2a; Figure 4 is a schematic view of a paper bin provided in accordance with an embodiment of the present invention; Figure 5 is a schematic view of a paper bin provided in accordance with an embodiment of the present invention, wherein the baffle is mounted in a paper bin 6 is a plan view of the paper bin shown in FIG. 5; FIG. 7 is a schematic view showing the force of the printing paper of the printer according to an embodiment of the present invention. Figure 8 is a schematic illustration of another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION In order to make the aspects, features and advantages of the present invention more comprehensible, the present invention will be described below with reference to the specific embodiments thereof. Taking a thermal printer as an example, a paper bin and a printer using the same according to an embodiment of the present invention will be described, but the paper bin provided by the present invention is not limited by the type of printer. 3 is a schematic diagram of a printer provided in accordance with an embodiment of the present invention. The printer is hot Printing machine. The thermal printer 100 includes a main body 1 and an upper cover 2. The upper cover 2 is hinged to the main body 1 and can be opened or closed with respect to the main body 1. The paper bin 10 is located inside the main body 1 and is opposed to the upper cover 2 for accommodating the printing paper roll. When the upper cover 2 is opened, the paper bin 10 is completely exposed to open. At this point, the user can replace the paper roll. 4 is a schematic view of a paper bin provided in an embodiment of the present invention. The paper bin includes two paper bin walls

104 and bottom plate 103. A plurality of slots 101 are provided in the bottom plate 103, and the slots 101 are disposed in pairs and constitute the slot groups 1011 and 1012. Two sets of slot sets 1011, 1012 are shown in Figure 4, and other numbers of slot sets can be set depending on the width of the printing paper. In practical applications, the number of slot groups can be set according to requirements, that is, the more paper roll width types supported by the paper bin, the greater the number of slot groups. The distance between the two slots in the same slot group is set according to the width of the paper roll and the two slots 101 in each slot group are symmetrically arranged about the center width of the paper tray floor. Also shown in FIG. 4 is a rubber roller 30 and a printhead 20 that are disposed opposite each other and are located in the sheet conveying direction, downstream of the paper bin 10. In use, the printing paper is output from between the glue stick 30 and the printhead 20. Figure 5 is a schematic illustration of a paper bin provided in accordance with an embodiment of the present invention, wherein the baffle is mounted in a paper bin. Figure 6 is a plan view of the paper bin shown in Figure 5. For clarity of presentation, some features not related to the present invention have been deleted from the drawings. As shown in FIG. 5, two baffles 102 are disposed in the paper bin, and the baffle 102 is detachably connected to the slot 101, that is, the baffle can be snapped or separated from the slot 101 according to requirements, or otherwise The slots are detachably connected. It should be noted that the baffle and the slot have a variety of cooperation forms, such as the Japanese special spear J publication number 10-181130, 2002-274703, 2007-062997 ό special spear] the literature discloses different baffles and slots form, both Suitable for use in the present invention. When the width of the paper roll is less than the distance between the two side walls of the paper bin, a slot set is selected according to the width of the paper roll, and the two baffles 102 are detachably connected to the slots in the slot set, respectively. As shown in FIG. 5 and FIG. 6, the two baffles 102 are engaged with the first slot set 1011. Thus, the paper roll is confined between the two flaps 102. The baffle 102 is a flat member having a mounting portion that matches the shape of the slot. In order to enable the baffle to be stably fixed in the slot, in one embodiment provided by the present invention, a baffle such as ABS, polyoxymethylene or the like is formed using a material having a certain elasticity. According to the present invention, the printing paper is output from the paper bin 10 during printing, passing between the print head 20 and the rubber roller 30. Since the distance between the two slots of the slot set is set according to the width of the paper roll, the space formed between the two shutters 102 matches the width of the paper roll. In this way, on the one hand, the paper roll can be smoothly outputted, the printing paper is separated from the side wall, the cutting of the side wall is not caused, the abrasion of the side wall is avoided, the noise generated by the cutting of the side wall of the printing paper is eliminated, and On the one hand, it prevents the paper roll from moving in the axial direction of the paper bin. In particular, when the paper bin is used in conjunction with a printer, the center of the width of the paper tray floor is aligned with the center of the width of the printhead such that the two slots in each slot group are actually relative to the width of the printhead. Centrosymmetric. In this case, referring to Fig. 7, an elastic member 40 that provides printing pressure is disposed above the print head 20. Since the printing paper roll is defined between the two baffles 102 symmetrical with respect to the center of the width of the print head, the printing paper cassette is aligned with the center of the printing head 20, and the portions of the printing head 20 that are in direct contact with the rubber roller 30 are distributed in the printing. At both ends of the head, this symmetrical distribution keeps the print head substantially parallel to the rubber roller, and the printing paper is evenly applied in the width direction, thereby ensuring uniform printing density and improving print quality. In addition, in order to detect the remaining amount of printing paper in the paper bin, prompting the user to replace the printing paper in time, according to another embodiment of the present invention, detecting the remaining of the printing paper on the side wall of the paper bin or on one of the two baffles The amount of paper will be as much as the sensor. The type of paper end sensor has a photoelectric sensor or a mechanical sensor. Figure 8 is a schematic illustration of another embodiment in accordance with the present invention. As shown in FIG. 8, a paper end sensor 60 is installed on the side wall of the printer paper bin, and the paper end sensor is a photoelectric sensor. To ensure that the printer provided by the present invention can normally detect the remaining amount of the printing paper, it is necessary to correspond to the baffle. The paper will set the opening at the end of the sensor to ensure the transmission of the sensor light. Since the method of detecting the amount of remaining paper by the paper end sensor is a well-known technique, the present invention will not be described again. The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but the scope of the inventions

Claims

A paper bin comprising a space for accommodating paper rolls composed of two side walls and a bottom plate, wherein a slot is provided on the bottom plate, and a baffle correspondingly detachably connected to the slot is provided, and the baffle is used Dividing the space for accommodating the paper roll, wherein the slots are disposed in pairs and constitute a slot group, and the two baffles respectively cooperate with two of the slots in the slot group, The paper roll is defined between the two baffles such that the printing paper is separated from the side walls.

2. The paper bin according to claim 1, wherein the number of the slot groups is at least one.

3. The paper bin of claim 1 wherein the two slots in the set of slots are symmetric about a center of a width of the base.

4. The paper bin of claim 1 wherein the distance between the two baffles corresponds to the width of the paper roll. A paper bin according to claim 1, wherein said baffle is made of a material having a certain elasticity.

6. The paper bin according to claim 1, further comprising a paper end sensor for detecting a remaining amount of paper, the paper end sensor being mounted on a side wall of the paper bin or the baffle in.

7. The paper bin of claim 5, wherein the paper end sensor is a photosensor or a mechanical sensor and an opening is provided at a position of the baffle corresponding to the paper end sensor.

A printer characterized by comprising the paper bin according to any one of claims 1-7.

9. The printer of claim 8 wherein said printer is a thermal printer.

10. The printer of claim 9, wherein the center of the paper tray floor width is aligned with the center of the printer printhead width.

The printer according to claim 8, wherein the printer is a dot matrix printer.

12. The printer of claim 8, wherein the printer is a hybrid printer.