CN209869745U - Printer paper storehouse structure - Google Patents

Abstract

The utility model relates to a printer paper storehouse structure, include: the printer paper bin is used for placing printing paper; the paper blocking structure moves in a printer paper bin before printing paper is placed, and a printing paper placing area with variable width is formed and is used for placing printing paper with different widths. The utility model discloses an increase and keep off the paper structure, divide into two areas that the width can change with printer paper storehouse, and then realized that different width beat the placing of printing paper, realized many-sided application.

Description

Printer paper storehouse structure

Technical Field

The utility model belongs to the technical field of printer equipment, concretely relates to printer paper storehouse structure.

Background

At present, the paper roll is generally used as a printing paper packaging mode in the domestic thermal printer industry, and the packaging mode has the advantages of compact structure, large capacity, simplicity, convenience and the like. On the basis of the mechanism, the forms of the gummed label printing paper roll and the like are derived. The specification of the roll paper forms various specification standards at present, and the roll paper is widely used in the industrial and civil fields.

The existing roll paper type printer generally adopts a paper shaft or other modes to fix a paper roll on a paper bin structure, and the paper bin of the printer with the paper shaft has single function, so that the common thermal printing paper and the label printing paper can not be installed in a compatible mode.

Due to the size design, the paper shaft of the label printer has strict requirements on the inner diameter of the paper roll, and is inconvenient for users to use.

Disclosure of Invention

In order to overcome the not enough of above-mentioned prior art, the utility model aims to provide a can compatible ordinary thermal printing scroll and the paper storehouse structure of label printing scroll, have compatible good can compatible thermal printing scroll and label printing scroll, simple structure, the commonality is good, characteristics that the reliability is high.

The to-be-solved technical problem of the utility model is realized through following technical scheme:

a printer paper cartridge structure comprising:

the printer paper bin is used for placing printing paper;

the paper blocking structure moves in a printer paper bin before printing paper is placed, and a printing paper placing area with variable width is formed and is used for placing printing paper with different widths.

Furthermore, a sliding groove is formed in the inner wall of the printer paper bin, and the paper blocking structure moves along the sliding groove, so that the width of the printing paper placing area is changed. The sliding groove structure is easy to open and simple in structure.

Furthermore, the edge of keeping off the paper structure is equipped with the buckle, keep off the paper structure through the buckle with the laminating of printer paper storehouse, under the state that changes printer paper storehouse width, keep off the paper structure and follow printer paper storehouse horizontal migration. Buckle structure on the one hand can realize both inseparable installations, and on the one hand, the clearance in addition after the installation can conveniently keep off paper structure and remove.

Further, the buckle is integrally arranged on the outer surface of the paper blocking structure. The integrated device is convenient to produce.

Furthermore, a locking mechanism is arranged on the paper blocking structure and used for locking after the width of the paper bin of the printer is adjusted by the paper blocking structure. The locking mechanism is added, so that the stability after width adjustment can be ensured, and the paper blocking structure is prevented from moving to cause the change of the width again.

Furthermore, the paper blocking structure is an elastic part, and after the width of the paper bin of the printer is adjusted, the elastic part is stressed to deform so that the locking mechanism locks the paper blocking structure. The elastic piece has elasticity, and the atress takes place deformation easily, and then whole width adjustment process can be realized through the atress.

Further, the printer paper storehouse includes convex end storehouse and sets up in the flange of end storehouse both sides, the fender paper structure include with end storehouse assorted protection shield and with the parallel baffle of flange.

Further, the locking mechanism includes installation department and displacement portion, the installation department passes through connecting portion with displacement portion and is connected, the installation department install in on the flange, displacement portion realizes the locking and the unblock of paper blocking structure through changing its position on the flange border. The locking mechanism is simple in structure, convenient to install and capable of achieving locking and unlocking of the baffle more in need compared with the protection plate.

Furthermore, the mounting part passes through the baffle and then is mounted with the baffle through an eccentric bulge. Through this eccentric bulge, support and keep off the paper structure and open to both sides, take place slight deformation to increase its and printer paper storehouse between frictional force, reach the dead purpose of lock.

Furthermore, the protection plate is provided with a hollow structure. Due to the fact that the elastic piece is added, the hollow structure is added, deformation of the elastic piece can be increased, and unlocking and locking are conveniently achieved.

The utility model has the advantages that:

the utility model discloses an increase and keep off the paper structure, it can freely remove in printer paper storehouse, divides printer paper storehouse into two regions, and one is used for placing printing paper, and the another side is unnecessary region, through the size in the unnecessary region of adjustment, and then changes and beat the width that printing paper placed the region, has realized that different widths beat the placing of printing paper, has enlarged the range of application of printer.

The printer paper bin has good compatibility, has the characteristics of compatibility with a thermosensitive printing paper roll and a label printing paper roll, simple structure, good universality, high reliability and the like; through batch production test, it can effectively solve and can't accomplish the not enough of the compatible installation of ordinary thermal printer paper and label printing paper among the prior art.

Drawings

Fig. 1 is one of the schematic structural diagrams of a paper bin structure of a printer according to the present invention;

fig. 2 is a second schematic structural view of a paper bin structure of a printer according to the present invention;

fig. 3 is a third schematic structural view of a paper bin structure of a printer according to the present invention;

fig. 4 is one of the schematic structural diagrams of the paper blocking structure provided by the present invention;

fig. 5 is a second schematic structural view of the paper blocking structure provided by the present invention;

FIG. 6 is a view showing a state of use of the paper stop structure according to the present invention;

fig. 7 is a second usage state diagram of the paper blocking structure provided by the present invention;

fig. 8 is a third usage state diagram of the paper blocking structure provided by the present invention;

FIG. 9 is a fourth view of the status of the paper stop structure of the present invention;

fig. 10 is a schematic structural view of a locking mechanism provided by the present invention;

in the figure: 1. a printer paper cartridge; 11. a bottom bin; 12. blocking edges; 2. a paper blocking structure; 21. a protection plate; 22. a baffle plate; 3. a locking mechanism; 31. an installation part; 32. a displacement section; 33. a connecting portion; 34. an eccentric protrusion; 5. buckling; 6. and a hollow structure.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.

Example 1

Referring to the attached drawings 1-10, the utility model provides a pair of printer paper storehouse structure, including printer paper storehouse 1 and fender paper structure 2, printer paper storehouse 1 is used for placing printing paper, and it is for holding the chamber structure, and 1 fixed volumes in traditional printer paper storehouse perhaps can only put small-size printing paper, perhaps large-scale printing paper, unable adjustment, and then can only adapt to the placing of a kind of length printing paper.

In this embodiment, in order to overcome the above technical problem, a paper blocking structure 2 is added, which can move in the printer paper bin 1 before placing the printing paper, so as to form a printing paper placing area with a variable width for placing the printing paper with different widths. Through such improvement, the inside size etc. of 1 body in printer paper storehouse need not to change, and the fender paper structure 2 that increases divides it, forms two regions, certainly, when being used for the printing paper of broad to place, another region can be very little, even the structure that two boards are next, but can satisfy the placing of different width printing paper, obtains further optimization with the function in printer paper storehouse 1 on the one hand, and on the other hand, when can placing multiple printing paper, the application of printer has obtained the extension.

In the embodiment, the paper blocking structure 2 is placed in the printer paper bin 1, so that the width of the printing paper placing area can be changed, and the printing paper box is simple in structure, convenient to produce and convenient to install; when the paper blocking structure is used for common thermal printing paper, the width of a printing paper placing area in the printer paper bin 1 is adjusted to be 57mm or 80mm by moving the paper blocking structure 2; when used for label printing paper, the width of the printing paper placing area in the printer paper bin 1 is adjusted to 40mm or 80mm by moving the paper blocking structure 2. Specifically, refer to fig. 1, which is a schematic structural diagram of the paper blocking structure 2 when adjusting the width of the printing paper placing area in the printer paper bin 1 to 80mm, refer to fig. 2, which is a schematic structural diagram of the paper blocking structure 2 when adjusting the width of the printing paper placing area in the printer paper bin 1 to 57 mm; referring to fig. 3, there is shown a top view of the printing paper cartridge in this embodiment.

In this embodiment, utilize to remove the principle that changes the width, ingenious setting in printer paper storehouse 1 keeps off paper structure 2 to through its width adjustable function that has realized in the printer paper storehouse 1 that the printing paper placed the position, and then make it realize ordinary thermal printing paper and the effect that the label beat the compatible installation of printing paper.

There are various forms for the installation, as well as the movement, of the paper blocking structure 2, not limited to one form. For example, by adding a linear guide rail on the paper blocking structure 2, the linear guide rail controls the paper blocking structure 2 to move in the printer paper bin 1, the end of the linear guide rail can be fixed by a bolt and the like, and the height of the paper blocking structure 2 can be matched with that of the printer paper bin 1.

Example 2

As a further development of the above embodiment, referring to fig. 1-3, in the present embodiment, the movement of the paper blocking structure 2 is specifically: the inner wall of the printer paper bin 1 is provided with the sliding groove, the paper blocking structure 2 moves along the sliding groove, the change of the width of the printing paper placing area is achieved, and therefore the various compatible installation of the printing paper is achieved. The sliding groove is arranged in the printer paper bin 1, is a very mature technology, and simultaneously moves in the sliding groove to be a very mature and common technology, and is easy to realize and simple in structure.

Further, as shown in fig. 4 to 5, a buckle 5 is disposed on a surface of the paper blocking structure 2, the paper blocking structure 2 is attached to the printer paper bin 1 through the buckle 5, and the paper blocking structure 2 moves horizontally along the printer paper bin 1 in a state that a width of the printer paper bin 1 is changed. The theory of use of buckle 5 is a bit similar to U type checkpost like, and it sets up in the border that keeps off paper structure 2, then directly passes behind the spout and laminate with the outer wall in printer paper storehouse 1, and the another side then laminates with the inner wall that keeps off paper structure 2, then directly stimulates and keeps off paper structure 2, can realize beating the width change that the printing paper placed the region.

Referring to fig. 4-5, it can be seen that the buckle 5 passes through the layer of the chute and is obliquely arranged, so that part of the buckle is tightly attached to the outer wall of the printer paper bin 1, and the rest part of the buckle has a gap, so that the paper blocking structure 2 can be conveniently moved.

For convenience of production, the buckle 5 may be integrally disposed on the outer surface of the paper blocking structure 2. Specifically, keep off paper structure 2 and be plastic construction, and then make things convenient for it to set up with buckle structure 5 is integrative.

Example 3

As a modification of embodiments 1 and 2, referring to fig. 1 to 3 and 6, in this embodiment, a locking mechanism 3 is provided on the paper blocking structure 2, and the locking mechanism 3 is used for locking after the paper blocking structure 2 adjusts the width of the printer paper bin 1. Through the dead mechanism 3 of lock that increases, and then after confirming the width of printer paper storehouse 1, will keep off the lock of paper structure 2 and die, when avoiding printing, keep off the removal of paper structure 2 in printer paper storehouse 1, cause the influence to printing.

In this embodiment, keep off paper structure 2 and be the elastic component, after having adjusted 1 width in printer paper storehouse, the elastic component atress takes place to deform so that locking mechanism 3 will keep off paper structure 2 lock and die. The elastic piece is elastic, deformation is easy to occur when stress is applied, and then the whole width adjusting process can be realized through stress.

Specifically, referring to fig. 1-3, the printer paper bin 1 includes a circular arc bottom bin 11 and flanges 12 disposed on two sides of the bottom bin 11, and an accommodating cavity is formed by the bottom bin 11 and the flanges 12 to accommodate printing paper. Referring to fig. 4, the paper blocking structure 2 includes a protection board 21 matching with the bottom bin 11 and a baffle 22 parallel to the rib 12. The protection plate 21 is matched with the bottom bin 11 in structure, namely the radian of the protection plate 21 is the same as that of the bottom bin 11, so that the protection plate is attractive, and the protection plate can protect the bottom bin 11.

Example 4

As a further modification of embodiment 3, referring to fig. 10, the locking mechanism 3 of this embodiment includes a mounting portion 31 and a displacement portion 32, and the mounting portion 31 and the displacement portion 32 are connected by a connecting portion 33 to form a structure similar to a wrench.

During installation, the installation part 31 is installed on the rib 12, and the position of the displacement part 32 on the edge of the rib 12 is changed, so that the paper blocking structure 2 is locked and unlocked.

Specifically, the mounting portion 31 is mounted to the baffle 22 through the eccentric protrusion 34 after passing through the baffle 22.

In this embodiment, two parallel slots matched with the width of the paper stopping structure 2 are arranged on the bottom arc surface (i.e. the bottom bin 11) of the printer paper bin 1 from left to right to serve as sliding grooves. Keep off paper structure 2 and have 4 buckles 5 that stretch out in circular arc (being protection shield 21) bottom outside four corners, two liang of parallels between 4 buckles 5 and the spout can smooth-going cooperation, reach gliding purpose.

Specifically, the locking mechanism 3 is laid horizontally like a trough-shaped structure, the two ends of the trough-shaped structure are respectively provided with an installation part 31 and an eccentric protrusion 34, the two ends of the trough-shaped structure are arranged on the connecting part 33 at the same side, the installation part 31 comprises an insertion part and an extension part, the insertion part penetrates through the baffle 22, and the width of the extension part is larger than that of the insertion part to fix the insertion part.

When the locking mechanism 3 is used, the connecting position of the protective plate 21 and the baffle plate 21 is taken as a horizontal line, and the length of the locking mechanism 3 is larger than the vertical distance from the edge of the baffle plate 21 to the mounting part 31; when the paper blocking structure needs to be locked, the eccentric protrusion 34 is broken off and moved, so that the locking mechanism 3 formed by the installation part 31, the connection part 33 and the eccentric protrusion 34 is perpendicular to the horizontal line, at this time, because the length of the locking mechanism 3 is greater than the perpendicular distance from the edge of the baffle 21 to the installation part 31, the locking mechanism 3 is deformed, the baffle 21 is opened towards two sides and slightly deformed, and thus the friction force between the paper blocking structure 2 and the clamping groove (namely the sliding groove) is increased, the protection plate 21 is close to the sliding groove in the bottom bin 11, and the purpose of locking is achieved; when the paper blocking mechanism is unlocked, the eccentric protrusion 34 is broken and moved, so that the locking mechanism 3 formed by the mounting portion 31, the connecting portion 33 and the eccentric protrusion 34 is inclined relative to the horizontal line, at this time, the length of the locking mechanism 3 can be fully placed, and further, the paper blocking structure 21 can be freely moved without being deformed.

In this embodiment, the paper blocking structure 2 is made of plastic. During assembly, the elasticity of the plastic material is utilized to clamp the buckle 5 on the paper blocking structure 2 into a clamping groove (namely a sliding groove) serving as a sliding rail, and after the assembly is finished, the plastic material is restored to the original state to realize the assembly; and the paper blocking structure 2 is tightly combined with the printer paper bin 1, and can smoothly slide without falling.

Referring to fig. 1-3, after the paper blocking structure 2 is installed in the printer paper bin 1, it is tightly combined with the printer paper bin 1, and the printing paper roll can smoothly rotate in the printer paper bin 1.

In this embodiment, the paper blocking structure 2 is designed to be hollow, and the inherent properties of the plastic material are utilized to increase the elasticity of the paper blocking sheet, so as to ensure that the paper blocking sheet can bear slight deformation and is not damaged in the assembling and using processes.

The paper blocking structure 2 comprises a main body and a locking mechanism 3. Referring to fig. 8, the locking mechanism 3 is a straight wrench with an eccentric protrusion 34 at the lower part, and the paper blocking structure 2 and the locking mechanism 3 are combined by the deformation that the hollow structure 6 of the paper blocking structure 2 can bear during assembly. After the paper blocking structure and the paper blocking structure are installed together, the paper blocking structure 2 is restored to the original state and cannot fall off under the condition that the paper blocking structure 2 is not damaged.

Referring to fig. 6 to 9, fig. 6 is a schematic structural view showing a locked state of the paper blocking structure 2, fig. 7 is a schematic structural view showing an unlocked state of the paper blocking structure 2, fig. 8 is a plan view showing the paper blocking structure 2 in the unlocked state, and fig. 9 is a plan view showing an unlocked state when small-sized printing paper can be placed after the paper blocking structure 2 is moved. Referring to the attached drawings, in use, when the locking mechanism 3 is in the unlocking position (i.e. needs to be unlocked to realize the position movement of the paper blocking structure 2), the paper blocking structure 2 is kept in the original state and can move left and right in the printer paper bin 1; when the paper blocking structure 2 moves to a proper paper width position and needs to be fixed, the locking mechanism 3 is pulled to the locking position (namely needs to be locked), the eccentric bulge 34 below the wrench supports the paper blocking structure 2 to be opened towards two sides and slightly deforms, so that the friction force between the paper blocking structure 2 and the clamping groove (namely the sliding groove) is increased, and the purpose of locking is achieved. When the width of paper needs to be adjusted, the locking mechanism 3 is pulled to the unlocking position, the eccentric bulge 34 below the wrench is not acted any more, the deformation of the paper blocking sheet disappears, the paper blocking sheet is restored to the original state, and the paper blocking sheet can freely slide in the paper bin.

In the embodiment, by using the principle that the elastic member deforms under stress, firstly, the locking mechanism 3 is installed on the baffle 22 of the paper blocking structure 2, specifically, the installation part 31 is installed through the hollow structure 6, the installation part 31 is connected with the eccentric protrusion 34, and the eccentric protrusion 34 is arranged near the side of the protection plate 21; the position of shifting 32 border sets up U type card, when the position of shifting 32 is removed to needs, break off with the fingers and thumb and make U type card break away from baffle 22, at this moment, keep off paper structure 2 under natural state, can keep the slip in the spout, then remove it to suitable position, eccentric protruding 34 can make baffle 22 on the paper structure 2 take place slight deformation, and then keep off paper structure 2 and take place partial motion up, the clearance diminishes between the outer wall of the spout on buckle 5 on the drive protection shield 21 and the printer paper storehouse 1, the friction increases, make its corresponding rigidity in printer paper storehouse 1, realize the lock die, in order to reach the purpose of spacing different width scroll.

In this embodiment, utilize to change 3 positions of locking mechanism, make it perpendicular or slope with the water flat line, and then locking mechanism 3 can support and make the fender piece warp or cancel the support and be the fender paper structure 2 reconversion, realize that fender paper structure 2 application of force is in the paper storehouse spout, realize that its deformation card dies in the spout in printer paper storehouse 1 or reconversion freely slides in the spout in printer paper storehouse 1.

In this embodiment, the paper blocking structure 2 (including the locking mechanism 3) is integrally and tightly designed, the locking mechanism 3 is provided with the eccentric protrusion 34, and the paper blocking structure 2 can be slightly deformed by pulling the locking mechanism 3, so as to increase friction with the printer paper bin 1 and achieve the purpose of locking. The locking mechanism 3 is pulled to the unlocking position, and the paper blocking structure 2 restores the original shape and can freely slide in the paper bin.

Further, referring to fig. 6, the protection plate 21 is provided with a hollow structure 6. Due to the fact that the elastic piece is added, the hollow structure is added, deformation of the elastic piece can be increased, and unlocking and locking are conveniently achieved.

The utility model discloses in, utilize and carry out the principle in subregion with printer paper storehouse 1, through the adjustment region size, realized placing that multiple specification beats printing paper. Meanwhile, the principle that plastic has elasticity is utilized, and the plastic deforms through force application to the plastic, so that the plastic is clamped in the sliding groove or loosely mounted in the sliding groove, whether the plastic moves in the sliding groove is controlled, and the locking and unlocking functions are achieved.

The utility model discloses in, printer paper storehouse 1 is installed in the shell of printer, then in printer paper storehouse 1, through keeping off paper structure 2 horizontal slip and lock in printer paper storehouse 1 and die to realize its spacing to the printing paper book. The utility model discloses in, keep off paper structure 2 and printer paper storehouse 1 and adopt the same circular arc design, combine closely through buckle 5, can freely slide.

During the use, when need print the scroll within 80mm, adjust according to printing scroll width and keep off paper structure 2 (including locking mechanism 3) position, pull behind locking mechanism 3, print the scroll and be injectd in fixed position, can be in fixed area free rotation.

If label paper with the same size is printed, the paper blocking structure 2 (comprising the locking mechanism 3) does not need to change the fixed position, and the paper roll is freely placed in the paper blocking structure, so that the method is simple and feasible.

If when changing the label paper of different width dimensions, pull locking mechanism 3 to the unblock position, keep off paper structure 2 (including locking mechanism 3) and resume original form and can freely slide in printer paper storehouse 1. And (3) readjusting the position of the paper blocking structure 2 (comprising the locking mechanism 3) according to the width size of the new paper roll, and pulling the locking mechanism 3 to lock and position.

If paper with the width of 80mm needs to be installed, the paper blocking structure 2 is pushed to the leftmost side, and the paper roll is directly put in. In this case, one area in the printer paper deck 1 is large and the other area is small, and specifically, the structure in which the baffle 22 and the rib 12 are closely adjacent.

The utility model has the advantages of it is following:

1. the design of a large paper bin is adopted, and the size limit of the inner cylinder of the paper roll is not considered. It is possible to install rolls of paper with a diameter of less than 50 mm. For users with larger printing quantity, the frequency of replacing paper rolls can be reduced, and time and labor are saved.

2. The paper blocking structure 2 (comprising the locking mechanism 3) and the printer paper bin 1 adopt concentric circular arc tangent design and can freely slide. Two parallel clamping grooves are arranged on the circular arc of the bottom bin 11 and are used as sliding grooves. The paper blocking structure 2 is provided with 4 buckles 5 at the bottom of the circular arc, and the buckles can be tightly matched with the sliding grooves to achieve the aim of sliding. The two are connected through the buckle 5, and the device has the advantages of simple and convenient installation and no redundant accessories.

3. The paper blocking structure 2 can be adjusted to a corresponding position according to the width of the paper roll and then the locking mechanism is pressed down, so that the purpose of limiting the paper roll is achieved, and the structure is simple and compact.

4. The width of the paper roll can be smoothly adjusted, and printing can be performed at will.

5. The printer paper bin 1 can accommodate both standard 80mm wide or 57mm wide thermal ticket printing paper rolls and thermal label printing paper rolls of different widths with widths less than or equal to 80 mm. The printing of different types of printing paper rolls is completed by using the same paper bin, and the problem that the common thermal printer can only use a single type of printing paper roll is solved.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (10)

1. A printer paper cartridge structure, comprising:

the printer paper bin (1) is used for placing printing paper;

the paper blocking structure (2) is arranged before printing paper is placed, the paper blocking structure (2) moves in the paper bin (1) of the printer to form a printing paper placing area with variable width, and the printing paper placing area is used for placing printing paper with different widths.

2. The printer paper bin structure according to claim 1, wherein a sliding groove is formed along the inner wall of the printer paper bin (1), and the paper blocking structure (2) moves along the sliding groove to change the width of a printing paper placing area.

3. The printer paper bin structure according to claim 2, wherein a buckle (5) is arranged at the edge of the paper blocking structure (2), the paper blocking structure (2) is attached to the printer paper bin (1) through the buckle (5), and the paper blocking structure (2) horizontally moves along the printer paper bin (1) in a state of changing the width of the printer paper bin (1).

4. A printer paper cartridge structure according to claim 3, characterized in that said catch (5) is integrally provided on the outer surface of said paper retaining structure (2).

5. The printer paper bin structure according to claim 1, wherein a locking mechanism (3) is arranged on the paper blocking structure (2), and the locking mechanism (3) is used for locking after the width of the printer paper bin is adjusted by the paper blocking structure (2).

6. The printer paper bin structure according to claim 5, wherein the paper blocking structure (2) is an elastic member, and after the width of the printer paper bin (1) is adjusted, the elastic member is deformed under stress so that the locking mechanism (3) locks the paper blocking structure (2).

7. The printer paper bin structure according to claim 6, wherein the printer paper bin (1) comprises a circular arc-shaped bottom bin (11) and flanges (12) arranged at two sides of the bottom bin (11), and the paper blocking structure (2) comprises a protective plate (21) matched with the bottom bin (11) and a baffle (22) parallel to the flanges (12).

8. The printer paper bin structure according to claim 7, wherein the locking mechanism (3) comprises a mounting portion (31) and a shifting portion (32), the mounting portion (31) is connected with the shifting portion (32) through a connecting portion (33), the mounting portion (31) is mounted on the rib (12), and the shifting portion (32) realizes locking and unlocking of the paper blocking structure (2) by changing the position of the shifting portion (32) at the edge of the rib (12).

9. The printer paper cartridge structure according to claim 8, wherein the mounting portion (31) is mounted to the baffle (22) by an eccentric protrusion (34) after passing through the baffle (22).

10. The paper bin structure of the printer as claimed in claim 7, wherein the protective plate (21) is provided with a hollowed-out structure (6).