JP6893833B2 - Printer - Google Patents

Description

The present invention relates to a printer provided with a rotating member such as a handle.

Conventionally, a printer configured to be able to print on fanfold paper (also referred to as continuous form) has been known (for example, Patent Document 1). Fanfold paper is a strip-shaped paper consisting of multiple labels and forms, and each label or form is folded alternately like a folding fan, and is used while unfolding one sheet at a time (figure of patent document). 1).
In the printer described in Patent Document 1, a fanfold-shaped label is inserted from a paper insertion slot arranged on the back surface of the printer and ejected from the front surface of the printer.

Japanese Unexamined Patent Publication No. 2003-191547

By the way, among printers, there is a portable printer provided with a handle so that the user can easily carry it. When the fanfold label is configured to be inserted from the paper insertion slot on the back surface of the printer as described in Patent Document 1 for such a portable printer, the handle obstructs the fanfold label. May be difficult to insert into the paper slot. For example, when a handle is provided in Cited Document 1, when the handle is located at the rearmost position, the handle may obstruct and it may be difficult to insert the fanfold label from the paper insertion slot on the back surface.

The paper insertion slot for fanfold paper is an example, but in a printer provided with a rotating member such as a handle, the rotating member may interfere with operations on the printer, disassembly work of the printer, and the like. Other examples of operations on the printer include inserting electrical connectors and replacing rechargeable batteries. An example of the disassembling work of the printer is the work of loosening the fastening screw provided in the housing of the printer with a tool.

Therefore, an object of the present invention is to prevent the rotating member from interfering with the operation of the printer in the printer provided with the rotating member.

One aspect of the present invention is
With the housing
A rotating member that is rotatably supported by the housing and has a grip portion formed therein.
An insertion slot for inserting the print medium inside the printer,
With
The rotating member is rotatable from the first position to the second position, and when it is in an upright state so as to face in the vertical direction, it rotates toward a predetermined stop position.
The stop position is provided between the first position and the second position, I position der to said rotating member does not move under its own weight,
When said rotating member is positioned at the stop position, so that the rotating member and the insertion opening when viewed said insertion opening from the inserting direction of the print medium do not overlap, the stop position is set, It is a printer.

According to an aspect of the present invention, in a printer provided with a rotating member, the rotating member can be prevented from interfering with the operation of the printer.

It is a perspective view of the printer which concerns on embodiment. It is a figure which shows typically the mode that the fanfold paper is printed in the printer which concerns on embodiment. 3A and 3B are perspective views of the printer according to the embodiment, FIG. 3A shows a case where the handle is located at the frontmost position, and FIG. 3B shows a case where the handle is located at the rearmost position. It is a rear view of the printer which concerns on embodiment, and shows the case where a handle is located at the rearmost position. 5A and 5B are diagrams showing the printer according to the embodiment when the handle is located at the intermediate stop position. 5A is a perspective view and FIG. 5B is a rear view. It is a perspective view of the printer which concerns on embodiment, and shows the case where the opening / closing cover is open state. 7A is a perspective view of the handle of the printer according to the embodiment, FIG. 7B shows a part of a plan view of the handle, and FIG. 7C is a view seen from the arrow A of FIG. 7B. FIG. 8A is a cross-sectional view taken along the line BB of FIG. 7B when the handle is located at the frontmost position, and is a diagram illustrating an engaged state between the handle and the housing. FIG. 8B is an enlarged view of the G1 portion of FIG. 8A. 9A is a cross-sectional view taken along the line BB of FIG. 7B when the handle is located at the intermediate stop position, and is a diagram for explaining the engaged state between the handle and the housing. FIG. 9B is an enlarged view of the G1 portion of FIG. 9A. FIG. 10A is a cross-sectional view taken along the line BB of FIG. 7B when the handle is located at the rearmost position, and is a diagram illustrating an engaged state between the handle and the housing. FIG. 10B is an enlarged view of the G1 portion of FIG. 10A.

Hereinafter, an embodiment of the printer according to the present invention will be described.

(1) Printer Configuration Hereinafter, the printer 1 according to the embodiment will be described with reference to FIGS. 1 and 2.
FIG. 1 is a perspective view of the printer 1 according to the embodiment. FIG. 2 is a diagram schematically showing how fanfold paper is printed on the printer 1 according to the embodiment.

As shown in FIGS. 1 and 2, the printer 1 of the present embodiment includes a housing 2, an opening / closing cover 3, a display panel 4, a platen roller 5, a thermal head 6, a handle 8, and an auxiliary roller 13. , 17 and so on. The printer 1 of the present embodiment is a portable printer, and a handle 8 (an example of a rotating member) is provided so that the user can easily carry the printer 1.

As understood in FIG. 1, the bottom surface of the printer 1 has a substantially rectangular shape, and the direction along the long side thereof is defined as the front-back direction. That is, the side on which the platen roller 5 (see FIG. 2) on the downstream side in the transport direction is provided is defined as the front (FR), and the upstream side in the transport direction on the opposite side is defined as the rear (RR). The right side (RH), the left side (LH), the upper side (UP), and the lower side (LO) are defined with reference to the front-back direction. In the following description, the right side (RH) direction or the left side (LH) direction is referred to as a lateral direction, and the upper side (UP) direction or the lower side (LO) direction is referred to as a vertical direction as appropriate.

As shown in FIG. 2, the inside of the printer 1 may be provided with a space for accommodating the roll paper when printing on the roll paper, and the housing 2 has an internal bottom surface for placing the roll paper. 2a may be formed.
The opening / closing cover 3 is a cover that opens or closes the inside of the printer 1. Although not shown, a shaft for rotatably supporting the opening / closing cover 3 with respect to the housing 2 is provided at the rear end of the opening / closing cover 3.

As shown in FIG. 1, a display panel 4 is provided on the front side (that is, the upper surface 1u of the printer 1) of the opening / closing cover 3. The display panel 4 is a liquid crystal display panel that provides an input / output interface for a user in a state where the opening / closing cover 3 is closed, and has, for example, a touch panel function.

As shown in FIG. 2, a platen roller 5 is rotatably supported in the forward and reverse directions on the downstream side of the housing 2 in the transport direction. The platen roller 5 is a conveying means for conveying the fan-folded paper P (hereinafter, appropriately simply referred to as “paper P”) inserted from the paper insertion slot 9 formed in the housing 2 on the back surface of the printer 1, and is a paper. It is formed in a state of extending along the width direction of P. The platen roller 5 is mechanically connected to a stepping motor (not shown) or the like and driven.
The fanfold paper P is an example of a printing medium.
An auxiliary roller 13 is provided on the housing 2 side, and an auxiliary roller 17 is provided on the opening / closing cover 3 side. As shown in FIG. 2, when the opening / closing cover 3 is in the closed state, the auxiliary rollers 13 and 17 face each other with the paper P sandwiched between them to assist the transport of the paper P to the platen roller 5.

The thermal head 6 is arranged on the opening / closing cover 3 so as to face the platen roller 5 when the opening / closing cover 3 is in the closed state.
The thermal head 6 is a printing means for printing information such as characters, symbols, figures, barcodes, and the like on paper P. As shown in FIG. 2, when the opening / closing cover 3 is in the closed state, the printed surface of the thermal head 6 faces the paper passing route of the paper P and faces the platen roller 5. On the printed surface of the thermal head 6, a plurality of heat generating resistors (not shown) that generate heat when energized are installed side by side along the width direction of the paper P. The thermal head 6 is connected to a circuit board (not shown) that transmits a print signal to the thermal head 6.

Although not shown, a coil spring is provided on the back side of the thermal head 6 as an urging member that applies an urging force to the thermal head 6.
When the opening / closing cover 3 is closed and printing is performed, the paper P is conveyed by the platen roller 5 and is sandwiched between the platen roller 5 and the thermal head 6. At this time, the thermal head 6 is pressed against the platen roller 5 by the urging force, whereby a head pressure suitable for printing is generated.

As shown in FIG. 2, when the open / close cover 3 is in the closed state, when the platen roller 5 is driven in the forward direction, the paper P inserted from the paper insertion slot 9 is sandwiched between the auxiliary rollers 13 and 17. Head to Platen Roller 5. The paper P printed by the thermal head 6 facing the platen roller 5 is discharged to the outside of the printer 1 from the discharge port 7 which is a gap between the housing 2 and the opening / closing cover 3 on the front surface of the printer 1.

(2) Position of Handle Next, the position of the handle 8 of the printer 1 will be described with reference to FIGS. 3 to 6.
3A and 3B are perspective views of the printer 1 according to the embodiment, FIG. 3A shows a case where the handle 8 is located at the frontmost position, and FIG. 3B shows a case where the handle 8 is located at the rearmost position. Is shown. FIG. 4 is a rear view of the printer 1 according to the embodiment, showing a case where the handle 8 is located at the rearmost position. 5A and 5B show the printer 1 according to the embodiment when the handle 8 is located at the intermediate stop position, FIG. 5A is a perspective view, and FIG. 5B is a rear view. FIG. 6 is a perspective view of the printer 1 according to the embodiment, showing a case where the open / close cover 3 is in an open state.

As shown in FIG. 1, in the printer 1 of the embodiment, the handles 8 are attached to the left and right side surfaces of the housing 2, and rotate back and forth around the shaft portion 42.
As shown in FIG. 3A, the handle 8 includes a grip portion 81 that is gripped when the user carries the printer 1, and arm portions 82L, 82R (hereinafter,) that extend from the left and right mounting positions of the housing 2 toward the grip portion 81. , Collectively referred to as "arm 82"). As shown in FIG. 3A, when the handle 8 is in the most front position (hereinafter, referred to as “the frontmost position”), the arms 82L and 82R are slightly tilted rearward with respect to the upward direction of the printer 1. Is. When the user grips the grip portion 81 and lifts the printer 1, the handle 8 is in an upright state so as to face upward in the vertical direction, and the handle 8 is in the foremost position in that state. The frontmost position is an example of the first position.

By manually tilting the handle 8 backward, the user can position the handle 8 at the rearmost position (hereinafter, referred to as "rearmost position") as shown in FIG. 3B. When the handle 8 is located at the rearmost position, the arms 82L and 82R are substantially parallel to the bottom surface of the printer 1. The rearmost position is an example of the second position.

As shown in FIGS. 3A and 3B, an inclined surface 3a is formed on the back surface side of the opening / closing cover 3. Therefore, when the handle 8 rotates between the frontmost position and the rearmost position, the height of the grip portion 81 from the rotation axis can be lowered as much as possible while avoiding interference with the opening / closing cover 3.

As shown in FIG. 4, on the back surface of the printer 1, a paper insertion slot 9 for inserting the paper P, a lid 28 for opening or closing the paper insertion slot 9, and four connector insertion ports INT1 ~ 4 is provided. A lid corresponding to each of the four connector insertion ports INT1 to 4 is provided, and when an external electrical connector is inserted, the user opens the lid of the corresponding connector insertion port.
As shown in FIG. 4, when the handle 8 is located at the rearmost position, the handle 8 interferes with the work of inserting the paper P into the paper insertion slot 9 or the connector to one of the connector insertion ports. It can be seen that it is difficult to insert the paper.

Therefore, in the present embodiment, an intermediate stop position is provided between the frontmost position and the rearmost position so that the handle 8 can be positioned at the intermediate stop position. The intermediate stop position is a position where the handle 8 does not move under its own weight (falls to the rearmost position).

As shown in FIG. 5A, when the handle 8 is located at the intermediate stop position, the grip portion 81 of the handle 8 is located near the upper end of the printer 1. In this state, as shown in FIG. 5B, the grip portion 81 of the handle 8 is located higher than the case where the handle 8 is located at the rearmost position. That is, the intermediate stop position of the handle 8 is set so that the grip portion 81 of the handle 8 and the paper insertion port 9 do not overlap when the paper insertion port 9 is viewed from the insertion direction of the paper P. Similarly, the intermediate stop position of the handle 8 is set so that the grip portion 81 of the handle 8 and the connector insertion ports INT1 to 4 do not overlap when the connector insertion ports INT1 to 4 are viewed from the insertion direction of the external connector. Has been done.
Therefore, the handle 8 does not interfere, and the user can easily insert the paper P into the paper insertion slot 9 or insert the connector into any of the connector insertion ports INT1 to INT4. You can see that.

Further, when the handle 8 is located at the intermediate stop position, the grip portion 81 of the handle 8 is arranged behind the rear end of the opening / closing cover 3, which hinders the handle 8 from opening the opening / closing cover 3. It will never be.

As shown in FIG. 5A, when the handle 8 is located at the intermediate stop position, the grip portion 81 of the handle 8 is located behind the upper surface 1u of the printer 1, so that the grip portion 81 of the handle 8 is viewed in a plan view. It does not overlap with the upper surface 1u of the printer 1. Therefore, the handle 8 does not interfere with the display panel 4 provided on the upper surface 1u of the printer 1 or when the display panel 4 is touch-operated. Further, even when various switches are arranged on the upper surface 1u of the printer 1, the handle 8 does not interfere with the operation of the various switches.

In the present embodiment, when the handle 8 is located in the foremost position (FIG. 3A), the arms 82L and 82R are slightly tilted rearward with respect to the upward direction of the printer 1 as described above. Therefore, when the printer 1 is arranged on a horizontal plane, the handle 8 does not continue to be in the foremost position without any support after the user releases the grip portion 81, and the handle 8 does not continue to be positioned in the frontmost position due to its own weight. Rotates to and stops at the intermediate stop position. Therefore, the user automatically tilts the handle 8 to the intermediate stop position after the user carries and puts down the printer 1, so that the user can operate the display panel 4, insert the paper P from the paper insertion slot 9, and insert the connector. Work such as inserting a connector into INTs 1 to 4 can be performed without any trouble. Therefore, no additional handle operation is required after the printer 1 is placed.
In the present embodiment, the handle 8 is located at the foremost position in a state in which the user grips the grip portion 81 and lifts the printer 1, that is, in a standing state in which the handle 8 stands up so as to face the vertical direction. The case will be described, but this is not the case. The frontmost position may be set further forward than the position where the handle 8 stands up.

In the printer 1 of the present embodiment, when the opening / closing cover 3 is opened while the handle 8 is located at the intermediate stop position, the back surface of the opening / closing cover 3 comes into contact with the grip portion 81 of the handle 8 as the opening / closing cover 3 is opened. As shown in FIG. 6, the handle 8 is configured to move from the intermediate stop position to the rearmost position. Therefore, the user does not have to move the handle 8 to the rearmost position (push the handle 8 backward) after opening the opening / closing cover 3 and setting the paper P inside the printer.

(3) Configuration of Handle Next, the configuration of the handle 8 of the printer 1 of the present embodiment will be described with reference to FIGS. 7 to 10.
7A is a perspective view of the handle of the printer according to the embodiment, FIG. 7B shows a part of a plan view of the handle, and FIG. 7C is a view seen from the arrow A of FIG. 7B. 8A, 9A, and 10A are cross-sectional views taken along the line BB of FIG. 7B, with and the handle when the handle 8 is located at the frontmost position, the intermediate stop position, and the rearmost position, respectively. It is a figure explaining the engaging state of a housing.
8B, 9B, and 10B are enlarged views of the G1 portion of FIGS. 8A, 9A, and 10A, respectively.

As shown in FIGS. 7A and 7B, the handle 8 is attached to the housing 2 so that the handle 8 can rotate around the rotation shaft AX set in the housing 2, and the mounting portions 30L and 30R ( Hereinafter, it also collectively referred to as “mounting portion 30”). The mounting portions 30L and 30R are protected by being covered with covers 83L and 83R (hereinafter, also collectively referred to as “cover 83”), respectively, and the mounting portion 30 is mounted on the housing 2 when the handle 8 is mounted on the housing 2. Is not exposed.
As shown in FIG. 7C, the mounting portion 30 has a shaft portion receiving hole 30C at the center thereof. The shaft portion receiving hole 30C is a hole for receiving the shaft portion 42 (see FIG. 1) inserted from the outside of the cover 83 toward the hole (not shown) formed in the housing 2. The handle 8 and the housing 2 are attached by the shaft portion 42.

Next, with reference to FIGS. 8 to 10, the engagement state between the mounting portion 30 of the handle 8 and the housing 2 at the frontmost position, the intermediate stop position, and the rearmost position of the handle 8 will be described. To do.
As shown in FIGS. 8A, 9A and 10A, the housing 2 is formed with a handle mounting portion 20 for engaging with the mounting portion 30 of the handle 8. The handle mounting portion 20 is formed with a storage chamber 20H for accommodating the mounting portion 30, and the mounting portion 30 rotates about the rotation shaft AX in the storage chamber 20H in response to the rotation of the handle 8. Move. A first engaging portion 21 and a second engaging portion 22 projecting from the periphery are formed on the peripheral edge of the handle mounting portion 20 in order to engage with the peripheral edge of the mounting portion 30. The second engaging portion 22 is different from the first engaging portion 21 in that a recess 22d is formed in the vicinity of the center. The first engaging portion 21 and the second engaging portion 22 have a substantially point-symmetrical relationship with respect to the center of the cylindrical portion 31 (that is, the position of the rotation axis AX).

As shown in FIG. 8A, the mounting portion 30 has a cylindrical portion 31 and a contact portion 32 protruding outward from the cylindrical portion 31. The cylindrical portion 31 rotates around the rotation shaft AX according to the rotation of the handle 8.
As can be seen enlarged in FIG. 8B, the peripheral edge of the cylindrical portion 31 has a first protrusion 51 protruding from the cylindrical surface 31s by L1 and a second protrusion 52 further protruding from the first protrusion 51 (cylindrical surface 31s to L2). Only protruding protrusions; however, L2> L1) are formed. Further, on the peripheral edge of the cylindrical portion 31, a third protrusion 53 protruding from the cylindrical surface 31s by L3 and a fourth protrusion 54 further protruding from the third protrusion 53 (a protrusion protruding only L4 from the cylindrical surface 31s; however, L4 > L3) and are formed. The first protrusion 51 and the second protrusion 52 and the third protrusion 53 and the fourth protrusion 54 have a point-symmetrical relationship with respect to the center of the cylindrical portion 31 (that is, the position of the rotation axis AX), respectively. There is.
The fourth protrusion 54 is an example of the "third protrusion" of the present invention.
In the example shown in FIG. 8A, the second protrusion 52 is formed on the first protrusion 51, but this is not the case. The first protrusion 51 and the second protrusion 52 may be formed so as to separately protrude from the cylindrical surface 31s. The two protrusions may be integrally formed so as to be in an overall inclined state from the first protrusion 51 to the second protrusion 52. The same applies to the third protrusion 53 and the fourth protrusion 54.

As shown in FIG. 8A, when the handle 8 is located at the foremost position, the side surface of the contact portion 32 of the mounting portion 30 comes into contact with the stopper surface 23 formed on the handle mounting portion 20. Therefore, the mounting portion 30 cannot rotate further counterclockwise than the state shown in FIG. 8A. As shown in FIG. 8B, when the handle 8 is located in the foremost position, the first protrusion 51 and the second protrusion 52 of the mounting portion 30 do not come into contact with the first engaging portion 21 of the handle mounting portion 20 and are mounted. The third protrusion 53 and the fourth protrusion 54 of the portion 30 do not come into contact with the second engaging portion 22 of the handle mounting portion 20.

The first engagement is performed until the handle 8 rotates backward from the frontmost position due to its own weight and is positioned at the intermediate stop position (that is, until the handle 8 moves from the frontmost position to the intermediate stop position). The portion 21 comes into contact with (rubs) the first protrusion 51. Therefore, the handle 8 gradually slows down while moving from the frontmost position to the intermediate stop position and approaches the intermediate stop position, so that the handle 8 is prevented from bouncing at the intermediate stop position.
Then, as shown in FIG. 9, the rotation of the handle 8 is restricted by engaging the second protrusion 52, which has a higher protrusion height than the first protrusion 51, with the first engaging portion 21 of the handle mounting portion 20. , The handle 8 stops at the intermediate stop position. At this time, the third protrusion 53 is in a state of slightly contacting the second engaging portion 22, but the fourth protrusion 54 is not in contact with the second engaging portion 22.

As shown in FIG. 10A, when the handle 8 is located at the rearmost position, the side surface of the contact portion 32 of the mounting portion 30 comes into contact with the stopper surface 24 formed on the handle mounting portion 20. Therefore, the mounting portion 30 cannot rotate more clockwise than the state shown in FIG. 10A. As shown in FIG. 10B, when the handle 8 is located at the rearmost position, the fourth protrusion 54 engages with the second engaging portion 22 in a state of being fitted in the recess 22d of the second engaging portion 22. The second protrusion 52 is located at a position overcoming the first engaging portion 21 (that is, a position advanced clockwise from the first engaging portion 21 in FIG. 10B).
When the handle 8 is located at the rearmost position, the contact portion 32 not only contacts the stopper surface 24 formed on the housing 2, but also the second engaging portion 22 of the housing 2 has a fourth protrusion 54. The handle 8 is prevented from bouncing from the rearmost position due to the contact of the contact portion 32 with the stopper surface 24. That is, assuming that the fourth protrusion 54 is not formed, when the user forcibly moves the fourth protrusion 54 from the intermediate stop position to the rearmost position, the contact portion 32 of the attachment portion 30 of the handle 8 is the housing. A phenomenon occurs in which the handle 8 strongly abuts on the stopper surface 24 of 2 and the handle 8 bounces due to the reaction. Such a phenomenon is not preferable in terms of quality. Therefore, by engaging the second engaging portion 22 with the fourth protrusion 54, it is possible to eliminate the phenomenon that the handle 8 bounces at the rearmost position, or to suppress the phenomenon.

As described above, the printer 1 of the present embodiment includes a handle 8 rotatably supported by the housing 2, and the handle 8 is rotatable from the frontmost position to the rearmost position and is in the vertical direction. It rotates toward a predetermined intermediate stop position when it is in an upright state so as to face. The intermediate stop position is provided between the frontmost position and the rearmost position, and is a position where the handle 8 does not move due to its own weight. Therefore, by positioning the handle 8 at the intermediate stop position, it is possible to avoid a state in which it is difficult for the user to insert the paper P into the paper insertion slot 9 or to insert the connector into any of the connector insertion slots. it can.

Although the embodiment of the present invention has been described in detail above, the printer of the present invention is not limited to the above embodiment, and it goes without saying that various improvements and changes may be made without departing from the gist of the present invention. is there.
For example, in the above-described embodiment, the intermediate stop position of the handle 8 is set in consideration of the work of inserting the paper P into the paper insertion slot 9 and the work of inserting the connector into one of the connector insertion ports. That is not the case. The intermediate stop position of the handle 8 may be set to an appropriate position so that the operation, work, or operation of the functional component provided on the appearance of the printer does not interfere with the handle 8. That is, the intermediate stop position is set according to the arrangement of the target functional component.

For example, when the power button and the sub screen are provided on the back surface of the printer 1, the intermediate stop position of the handle 8 is set so as not to interfere with the operation of the power button, the visibility of the sub screen, or both. You may. In that case, for example, the intermediate stop position is set ahead of the position shown in FIG. 5A. Alternatively, the intermediate stop position of the handle 8 may be set so as not to interfere with the work of loosening the fastening screw provided on the housing of the printer in the disassembling work of the printer.

1 ... Printer 1u ... Top surface 2 ... Housing 2a ... Internal bottom surface 20 ... Handle mounting portion 20H ... Storage chamber 21 ... First engaging portion 22 ... Second engaging portion 28 ... Lid 23, 24 ... Stopper surface 3 ... Opening / closing cover 4 ... Display panel 5 ... Platen roller 6 ... Thermal head 7 ... Discharge port 9 ... Paper insertion port 13, 17 ... Auxiliary roller 8 ... Handle 81 ... Grip portion 82L, 82R (82) ... Arm portion 83L, 83R (83) ... Covers 30L, 30R (30) ... Mounting portion 30C ... Shaft portion receiving hole 31 ... Cylindrical portion 31s ... Cylindrical surface 32 ... Contact portion 51 ... First protrusion 52 ... Second protrusion 53 ... Third protrusion 54 ... Fourth protrusion 42 ... Shaft INL1 to INL4 ... Connector outlet P ... Fan fold paper (paper)

Claims (9)

With the housing
A rotating member that is rotatably supported by the housing and has a grip portion formed therein.
An insertion slot for inserting the print medium inside the printer,
With
The rotating member is rotatable from the first position to the second position, and when it is in an upright state so as to face in the vertical direction, it rotates toward a predetermined stop position.
The stop position is provided between the first position and the second position, I position der to said rotating member does not move under its own weight,
When the rotating member is located at the stop position, the stop position is set so that the rotating member and the insertion port do not overlap when the insertion port is viewed from the insertion direction of the printing medium.
Printer. With the housing
A rotating member that is rotatably supported by the housing and has a grip portion formed therein.
With
The rotating member can rotate from the first position to the second position, and when it is in an upright state so as to face in the vertical direction, it rotates by its own weight toward a predetermined stop position.
The stop position is provided between the first position and the second position, and is a position where the rotating member does not move due to its own weight.
Printer. The printing medium is fanfold paper.
The printer according to claim 1. Equipped with an outlet for connecting an external electrical connector
When the rotating member is located at the stop position, the stop position is such that the rotating member and the insertion port do not overlap when the insertion port is viewed from the insertion direction of the external electrical connector. Is set,
The printer according to any one of claims 1 to 3. With a cover that opens or closes the inside of the printer
When the rotating member is located at the stop position, the cover comes into contact with the rotating member as the cover is opened, whereby the rotating member moves from the stopped position to the second position. Is configured as
The printer according to any one of claims 1 to 4. The rotating member has a cylindrical portion that rotates around a rotating shaft set in the housing.
The cylindrical portion is formed with a first protrusion that protrudes outward from the cylindrical surface and a second protrusion that protrudes further outward from the first protrusion.
A first engaging portion is formed on the housing.
The first engaging portion comes into contact with the first protrusion while the rotating member moves from the first position to the stop position.
The printer according to any one of claims 1 to 5. When the rotating member is located at the stop position, the first engaging portion engages with the second protrusion.
The printer according to claim 6. The rotating member has a contact portion that rotates in conjunction with the cylindrical portion.
A third protrusion protruding outward from the cylindrical surface is formed on the cylindrical portion.
A second engaging portion is formed on the housing.
When the rotating member is located at the second position, the contact portion abuts on the stopper surface formed on the housing, and the second engaging portion of the housing is with the third protrusion. Engage,
The printer according to claim 6 or 7. When the rotating member is located at the stop position, the rotating member is configured so as not to overlap the upper surface of the printer in a plan view.
The printer according to any one of claims 1 to 8.

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