JPH06344620A - Recorder - Google Patents

Abstract

PURPOSE:To reduce the noise produced when a protruding pin on a carriage comes into collision with a side wall of a groove part of a screw member in reversing the reciprocation of the carriage by providing a plurality of rubber legs as a damping means for controlling the travel of the carriage just before a carriage reciprocation reversing position. CONSTITUTION:In a serial recorder making recording on recording paper by reciprocating a carriage 3 provided with a recording head 2, a plurality of rubber legs 26a are provided as a damping means for controlling the travel of the carriage 3 just before a carriage reciprocation reversing position. As a result, though a noise is produced when a protruding pin on the carriage 3 comes into collision with a side wall of a groove part of a screw member in reversing the reciprocation of the carriage 3, the noise can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a serial type recording apparatus for recording by reciprocating a recording means in parallel with a recording medium.

[0002]

2. Description of the Related Art Conventionally, in a small serial type recording apparatus for recording by reciprocally moving a recording means such as a recording head in parallel with a recording sheet as a recording medium, a cylindrical rotary member has a spiral shape. The feed groove is provided independently for the forward path and the return path, and both ends of the groove are connected to each other, and the projecting member from the carriage having the recording means is inserted into the spiral feed groove, and the bidirectional screw is used. It is known that the carriage is reciprocated by rotating the cylindrical rotating member such as the above in the same direction to perform recording.

Alternatively, a recording means for recording on a recording medium and a projecting member from the recording means are inserted into a feed groove to reciprocate the recording means along the conveyance path of the recording medium. A rotating body such as a screw capable of rotating in forward and reverse directions, a driving source capable of rotating in one direction, a first rotating member for transmitting a driving force from the driving source, and the first rotating member. A second state in which the drive force is transmitted from the vehicle and the drive force is not transmitted from the second vehicle
And a third rotating member for transmitting the driving force from the first rotating member to the rotating body as a positive direction rotating force via the second rotating member. A path for transmitting the driving force from the rotating member to the rotating body as a rotating force in the opposite direction via the second rotating member and the third rotating member, and by rotating the drive source in the same direction, A recording apparatus of this type has been proposed in which a screw provided with a single groove is bidirectionally rotated to reciprocally move a recording unit to perform recording.

[0004]

However, in the above-mentioned conventional example, at the reversing position when the recording means or the carriage equipped with the recording means reciprocates, the protrusion from the recording means or the carriage occurs. There is a problem that noise is generated when the member collides with the side wall of the feed groove of the screw or the bidirectional screw.

The present invention has been made in view of the problems of the conventional example as described above, and an object thereof is to provide a means for reducing noise at the time of reciprocal reversal of a recording means or a carriage of this kind. .

[0006]

Therefore, in the present invention, a recording means for recording on a recording medium, a rotating body having a spiral groove in the outer peripheral portion, the recording means or this recording means. A pin that is disposed on a carriage that mounts and that engages with the spiral groove; a rotary drive source; drive force transmission means for transmitting a drive force from the drive source to the rotary body; Recording having means for moving the recording means along the conveying path of the recording medium by the driving force transmitted from the source and then reversing the recording medium in the opposite direction, and a plurality of rubber feet provided on the base frame. A device,
These rubber feet are provided at both ends of the carriage movement range, and braking means for braking the movement of the recording means or the carriage is provided on the rubber feet immediately before the reversal position of the reciprocating movement of the recording means or the carriage. By doing so, the above object is achieved.

[0007]

With the above-described structure of the present invention, the braking means is used immediately before the reciprocal reversal position, that is, immediately before the recording means or the protruding member from the carriage on which the recording means is mounted collides with the rotating body or the side wall of the feed groove. By braking the movement of the recording means or the carriage carrying the recording means, the momentum when the projecting member collides with the side wall of the feed groove of the rotating body is reduced, and as a result, noise at the time of reciprocating movement reversal is reduced. Reduce.

[0008]

EXAMPLES The present invention will be described below based on examples.
FIG. 1 is a front explanatory view in FIG. 2, FIG. 3 is a right side explanatory view of FIG. 1, and FIG. 4 is a left side explanatory view of an embodiment of a recording apparatus according to the present invention.

(Structure) In each of the drawings, reference numeral 1 is a base frame forming the main body of the apparatus, and a carriage 3 having a recording head 2 constituting a recording means is mounted on the frame 1 in the directions of arrows P and Q in FIG. Is movably attached to. The recording head 2 according to the present embodiment employs an inkjet recording method in which energy is applied in accordance with a recording signal to eject ink from an ink ejection port. Among them, as the energy used for ejecting ink, A means for generating heat energy (for example, an electrothermal converter or a laser beam) is provided, and a device that causes a change in the state of the ink by this energy is used.
This is because according to this method, high density recording and high definition recording can be achieved.

Reference numeral 4 is a hole 3a provided in the carriage 3.
(See FIG. 2) A set lever rotatably mounted around the center of the set head, which is a member for pressing and fixing the recording head 2 to a flexible cable 6 for connecting to a drive circuit board (not shown).

The carriage 3 has a base frame 1
It is supported by two sliding shafts 5a and 5b (Fig. 3) fixed to the above and is slidable in the directions of arrows P and Q in Fig. 1. Further, in the carriage 3, a groove 13b formed in a screw 13 which is a rotating body to be described later (see a carriage driving system explanatory diagram shown in FIG. 6 to be described later) is inserted, and the rotational movement of the screw 13 is indicated by arrows P and Q in FIG. A protruding pin 22 (FIG. 3) for conversion into a directional linear movement is fixed.

A platen 7 also has a function as a guide for a recording sheet, which is a recording medium. A feed roller 8 for feeding the recording sheet is rotatably supported by the base frame 1 and the right side plate 10, and a gear portion 8a is formed at a predetermined position. This feed roller 8a
A plurality of rubber rings 9 are attached to the central part of
Pinch rollers 23 are arranged below each rubber ring 9 so as to face each other, and pressure is applied to the rubber rings 9 via the pinch rollers 23 by a shaft having spring elasticity (not shown). The recording sheet is inserted between the rubber ring 9 and the pinch roller 23, and is conveyed according to the rotation amount of the feed roller 8.

FIG. 3 shows a right side surface from which the right side plate 10 is removed. In FIG. 3, reference numeral 11 denotes a main gear which is a first rotating member, which is fixed to the shaft 12 and
Are rotatably supported by the base frame 1. 14
Is a reversing gear which is a second rotating member, and is rotatably supported by a shaft protruding from the base frame 1.
Reference numeral 13 denotes a screw, and a gear portion 13a which is a third rotating member is integrally formed at the right end portion thereof. The reversing gear 14 and the screw gear 13a are always in mesh with each other, but the main gear 11 and the reversing gear 14 or the screw gear 13a are configured to intermittently transmit power by a mechanism described later.

FIG. 5 shows a left side surface from which the left side plate 16 in FIG. 4 has been removed. Reference numeral 15 is a DC motor as a drive source, and a worm gear 21 is press-fitted and fixed to the motor shaft. The worm gear 21 has a disc-shaped encoder slit 21a integrally formed at the tip thereof.
It enters into the concave groove of the ejection signal detector 19. Again 17
Is a wheel gear, which is similarly fixed to the shaft 12 for fixing the main gear 11 of FIG. 3, and is always in mesh with the worm gear 21.

The ejection signal detector 19 is a transmissive photo detector and is provided on the PCB (printed circuit board) 18 of FIG. 4, and at the same time, the recording start signal detector 24 (described later) is provided on the PCB 18. A transmissive photosensor) is also provided. Reference numeral 20 is a flat cable for connecting the PCB 18 and a drive circuit (not shown).

(Carriage Drive Power Transmission System) Next, a power transmission system for reciprocating the carriage 3 will be described. FIG. 6 is a perspective view schematically showing a power transmission system for reciprocating drive of the carriage 3, and the DC motor 15 always rotates in one direction when energized. As a result, the wheel gear 17 always rotates in the arrow J direction in FIG. 6 via the worm gear 21, and the main gear 11 also rotates in the J direction via the shaft 12.

As described above, when the power of the main gear 11, which is constantly driven to rotate in the J direction, is transmitted directly from the main gear 11 to the screw gear 13a by the mechanism described later, the screw 13 moves in the direction of arrow K in FIG. Rotate to
At this time, the carriage 3 moves in the direction of arrow P.

Next, the shapes of the main gear 11, the reversing gear 14, and the screw gear 13a will be specifically described with reference to FIGS. 7 to 9. FIG. 7 is an explanatory view of the main gear 11. The gear 11 is divided into three facing portions, namely, a facing portion with the reversing gear 14, a facing portion with the screw gear 13a, and a facing portion with the feed roller gear 8a.

First, the portion facing the screw gear 13a comprises a gear portion 31 and cam portions 30 and 32 at both ends thereof. The number of teeth of the gear portion 31 is set to 18 teeth in this embodiment, but this value is set to the value of the reversing gear 14 and the screw gear 1.
It is determined by the number of teeth of 3a and how many times the screw 13 is driven to rotate.

Next, the portion facing the reversing gear 14 is similarly composed of the gear portion 34 and the cam portions 33 and 35 at both ends thereof, and is set in the same shape as the portion facing the screw gear 13a. The difference is that the cams 33 and 35 are provided at the respective end portions, that is, at positions opposite to the toothless portion (40 or 42 in FIGS. 8 and 9) of the reversing gear 14 or the screw gear 13a described later. It is provided. The portion facing the feed roller gear 8a will be described later.

FIGS. 8A and 8B are explanatory two-sided views of the reversing gear 14, showing a toothed portion 38 having all the teeth and a toothed portion having a partially toothless portion (three teeth) 40. It consists of 39. As described above, the toothless portion 40 is formed by the cam portions 33 and 35 of the main gear 11.
And in the opposite position. Further, the teeth of the entire-circumferential tooth portion 38 and the toothed portion 39 are set to be out of phase with each other by half a tooth α in the rotational direction.

FIG. 9 is an explanatory view of the screw gear 13a, and FIG. 9B is a sectional view taken along line AA of FIG. Like the reversing gear 14, it is composed of a toothed portion 41 having a partially toothless portion (three teeth) 42. The toothless portion 42 is shown in FIG.
It is provided at a position facing the cam portions 32 and 30 of the main gear 11.

Next, a specific operation will be described with reference to FIG. 10A to 10D, in order to facilitate understanding of the engagement / disengagement operation of the main gear 11 and the reversing gear 14, the description is limited to the part of the main gear 11 facing the reversing gear 14 and the movement of the reversing gear 14. In the figure, (A) shows a state in which the cam portion 35 of the main gear 11 has entered the toothless portion 40 of the reversing gear 14. At this time, the rotational force is not yet transmitted to the reversing gear 14, and the main gear 11 shows an arrow. Even when rotating in the J direction, the reversing gear 14 is stopped. Next, the main gear 11
When is further rotated in the direction of arrow J, the tooth portion 34a provided on the main gear 11 meshes with the tooth portion 14a of the reversing gear 14, and the reversing gear 14 is rotationally driven in the direction of arrow L, as shown in FIG. It

In FIG. 6C, the reversing gear 14 is still indicated by the arrow L.
It is driven to rotate in the direction. Then, when the teeth of the main gear 11 are set so that the tooth portions 34b are meshed with each other as described above, as shown in FIG.
The cam portion 33 enters the toothless portion 40 of the reversing gear 14 to stop and lock the rotation of the reversing gear 14.

A similar operation is performed in the mutual transmission operation between the screw gear facing portion of the main gear 11 and the screw gear 13a. Further, the toothed portion 38 of the reversing gear 14
Since the screw gear 13a (see FIG. 8) and the screw gear 13a are always in mesh with each other, one rotation operation of the reversing gear 14 is transmitted to the screw gear 13a, and the screw 13 makes one rotation.

Here, the facing portion of the main gear 11 facing the reversing gear 14 and the facing portion of the screw gear 13a are set in a state where their phases are substantially shifted by 180 ° as shown in FIG. 1 against 180 °
1 shows a mutual relationship diagram, the phase is further shifted by an angle θ from the position of the reversing gear 14 and the screw gear 13a to the center of the main gear 11). In the state of FIG. Screw gear 13a
The positional relationship between the facing portion and the screw gear 13a is shown in FIG.
It is in the state of 0 (A).

However, in FIG. 6, 1) when the main gear 11 rotates 0 ° to 180 °, the reversing gear 14 makes one rotation in the direction of arrow L, and the screw gear 13a moves in the direction of arrow M through this reversing gear 14. Make one rotation. As a result, the carriage 3 moves in the direction of arrow Q.

2) The main gear 11 is 180 ° to 360 °
When rotated, the screw gear 13a makes one rotation in the direction of arrow K, and the reversing gear 14 is passed through this screw gear 13a.
Rotates once in the direction of arrow N. As a result, the carriage 3 moves in the direction of arrow P.

When the state is switched to 1) → 2), 2) → 1), the cam portions 32 and 35 in FIG. 7 are accurately inserted in the toothless portions of the reversing gear 14 and the screw gear 13a. The cam portions 30 and 33 enter the toothless portions to fix the gears. With the mechanism described above, the carriage 3 repeats the movements in the arrow P and Q directions.

Next, the relationship between the single groove portion (screw groove) 13b formed in the screw 13 and the projecting pin 22 will be described in detail. FIG. 12 shows a state in which the projecting pin 22 has entered the groove 13b and is moving in the direction of arrow P.
3 is a diagram locally showing a state in which the protruding pin 22 is moving in the direction of arrow Q. FIG.

As shown in FIG. 12, when the projecting pin 22 moves in the P direction, the projecting pin 22 is pressed against the right side wall 13c of the groove portion 13b in the P direction as the screw 13 rotates. Yuki, the left side wall 1 on the opposite side
There is a gap with 3d. Further, as shown in FIG. 13, when the projecting pin 22 moves in the Q direction, the projecting pin 22
Is closely attached to the left side wall 13d of the groove 13b, the screw 13 is pushed in the Q direction as the screw 13 rotates in the opposite direction, and at this time, there is a gap between the screw 13 and the right side wall 13c on the opposite side.

However, when the moving direction of the P direction → Q direction or the Q direction → P direction is reversed, the rotation of the screw 13 is temporarily stopped, and at that moment, the projecting pin 22 is moved to the right side wall 13c by the inertia of the carriage 3. Or left wall 13
It separates from d and collides with the left side wall 13d or the right side wall 13c on the opposite side.

Here, the screw 13 and the projecting pin 22 are usually made of a material having a relatively high rigidity such as a free-cutting metal material or a molded plastic material having excellent slidability. This is to stabilize the transfer amount of the carriage 3 by the screw 13. Therefore, as described above, when the moving direction is reversed, the projecting pin 22 has the opposite side wall 13c or 1
It collides with 3d and emits noise.

(Brake Means Immediately Before Reversing Carriage Moving Direction) Reference numerals 26a and 26b shown in FIGS. 1 to 5 are at positions projecting from the base frame 1 and each end of movement of the carriage 3 in the arrow P and Q directions. It is a rubber foot provided on the part. As described above, when the carriage movement is reversed, the protruding pin 22 is released from the side wall 13c or 13d of the groove portion 13b, and at the same time, the side portion of the carriage 3 has the rubber foot 26a.
Or it collides with 26b. Since these rubber feet have appropriate elasticity, the moving speed due to the inertia of the carriage 3 is gradually reduced, and the collision sound when the protruding pin 22 collides with the opposite side wall 13d or 13c is reduced. Generated noise is reduced.

(Recording Sheet Conveyance Transmission System) Next, the recording sheet conveyance transmission system will be described. The recording sheet conveying operation is performed by intermittently rotationally driving the gear portion 8a of the feed roller 8 as the tooth portions 36 and 37 integrally formed with the main gear 11 in FIG. . The tooth portions 36 and 37 are out of phase with each other by 180 °, and are set by the screw 13 so that the carriage 3 is formed in the vicinity of both side portions and in a region that does not affect the recording operation of the recording head 2. ing.

Next, the recording operation in this embodiment will be described. FIG. 14 is a block diagram showing the configuration of the peripheral portion of the recording apparatus in this embodiment, which includes a CPU 50, a keyboard 51, a display unit 52, a power supply unit 53, a motor drive circuit 54, a recording head drive circuit 55, and a recording apparatus 56. It is configured. The signals input from the recording device 56 to the CPU 50 include the ejection position detection signal output from the ejection signal detector 19 shown in FIGS. 1, 4, 5, and 6 and the recording shown in FIGS. There are two types of ejection start position detection signals output from the start signal detector 24.

In FIG. 5, when a voltage is applied to the DC motor 15 to start it, a discharge position detection signal is generated by the encoder slit disk 21a formed integrally with the worm gear 21. This signal is set to be generated in a one-to-one correspondence with each todd column in the dot matrix.

Next, the carriage 3 starts moving in the direction of arrow P from the right end position in FIG. 1, for example, by the mutual operation of the main gear 11, the reversing gear 14, and the screw gear 13a. Next, in FIG. 6, the encoder plate 25 fixed to the end of the screw 13 rotates as the screw 13 rotates, and the slits 25a, 25 formed in the circumferential portion of the encoder plate 25 rotate.
b generates a recording start position signal.

The CPU 50 receives the ejection position start signal and, at the same time, selectively outputs a recording signal in synchronization with the ejection position detection signal, thereby performing recording in the direction of arrow P in FIG. When the recording in the P direction is completed, the CPU 50 counts the number of pulses of the ejection position detection signal and, after N pulses, turns off the energization of the motor 15. At this time, the recording sheet conveying operation has already been completed as described above, and the carriage 3 stops at the left end portion in FIG. A timing chart of the above recording operation in the P direction is shown in FIG.

Next, when the motor 15 is started again, the screw 13 reversely rotates due to the above-described reversing mechanism of the screw 13, and the carriage 3 starts moving from the left end of FIG. 1 in the arrow Q direction. A discharge position detection signal is also generated when the motor 15 is started. Further again, encoder plate 25
By the rotation of, the ejection start position detection signal is generated, and in synchronization with this, the CPU 50 selectively outputs the recording signal to perform recording in the direction of arrow Q in FIG.

When the recording in the direction of the arrow Q is completed as described above, the CPU 50 counts the number of pulses of the ejection position detection signal, and turns off the power supply to the motor 15 after M pulses. At this time, as described above, the recording sheet conveying operation has also ended, and the carriage 3 stops at the right end portion in FIG. FIG. 16 shows a timing chart of the above recording operation in the Q direction.

Recording is performed on the recording sheet by repeating the above operation. Further, the CPU 50 needs to determine in advance whether the cassigli 3 is located at the left end portion or the right end portion. As a method for that, for example, when the system is powered on or a specific key (for example, all clear) is used. The motor 15 is energized when a key etc.) is pressed. Then, as shown in FIG. 15 or 16, the shape of the encoder plate 25 is set so that the ejection start position detection signals generate different signals in the arrow P direction and the Q direction. If it is a shape, it is moving in the P direction, and if it is a Y → X shape, it is moving in the Q direction.
0 will be discriminated.

The difference between the encoder pulses X and Y is that
By counting the number of pulses of the ejection position detection signal during that time, it is possible to accurately determine even if the rotation speed of the motor 15 is different. Further, the number of pulses from the end of recording in the P direction and the Q direction until the driving of the motor 15 is stopped is N and M, respectively, but these pulse numbers are basically set to the same value. However, it does not matter even if a slight difference is made due to the difference in load.

(Other Embodiments) FIG. 17 is a view for explaining the shape of the collision portion according to the second embodiment of the present invention. In order to enhance the braking effect as compared with the first embodiment, the carriage is Rubber foot 126b (or 126a) when reversing the movement of 3
The collision portion 127b (or 127a) of the rubber foot 126b (or 126a) corresponding to the collision portion 3b of the carriage 3 that collides with is formed in the shape of a minute protrusion.

The present invention is particularly provided with means for generating thermal energy as energy used to eject ink, even in an ink jet recording apparatus,
In the recording head and recording apparatus of the type in which the thermal energy causes a change in the state of the ink, an excellent effect is brought about. According to this method, the recording density is increased,
This is because high precision can be achieved.

Regarding the typical structure and principle thereof, see, for example, US Pat. Nos. 4,723,129 and 4740.
What is done using the basic principles disclosed in 796 is preferred. This method is a so-called on-demand type,
It can be applied to any of the continuous type, but especially in the case of the on-demand type, it can be applied to the sheet holding the liquid (ink) or the electrothermal converter arranged corresponding to the flow path. By applying at least one drive signal corresponding to the recorded information and causing a rapid temperature rise exceeding nucleate boiling, heat energy is generated in the electrothermal converter, and film boiling is caused on the heat acting surface of the recording head. As a result, bubbles can be formed in the liquid (ink) in a one-to-one correspondence with this drive signal, which is effective. The liquid (ink) is ejected through the ejection openings by the growth and contraction of the bubbles to form at least one droplet. It is more preferable to make this drive signal into a pulse shape because bubbles can be immediately and appropriately grown and contracted, so that liquid (ink) ejection with excellent responsiveness can be achieved. As the pulse-shaped drive signal, U.S. Pat. Nos. 4,463,359 and 4,345 are used.
Those as described in the '262 patent are suitable. If the conditions described in U.S. Pat. No. 4,313,244 are adopted in the invention relating to the temperature rise rate of the heat acting surface, more excellent recording can be performed.

As the constitution of the recording head, in addition to the combination constitution of the ejection port, the liquid passage and the electrothermal converter (the linear liquid passage or the right-angled liquid passage) as disclosed in the above-mentioned respective specifications. The configurations using US Pat. No. 4,558,333 and US Pat. No. 4,459,600, which disclose the configuration in which the heat acting portion is arranged in the bending region, are also effective in the present invention. In addition, Japanese Unexamined Patent Publication No. 59-123670 discloses a configuration in which a common slit is used as a discharge portion of the electrothermal converter for a plurality of electrothermal converters, and an opening for absorbing a pressure wave of thermal energy is provided. The present invention is also effective as a configuration based on Japanese Patent Application Laid-Open No. 59-138461, which discloses a configuration corresponding to the ejection portion.

Further, it is preferable to add recovery means for the recording head and preliminary auxiliary means provided as a constitution of the ink jet recording apparatus of the present invention because the effects of the present invention can be further stabilized. Specific examples thereof include capping means, cleaning means, pressurization or suction means, an electrothermal converter or a heating element other than this, a preheating means for the recording head, and a recording head for the recording head. It is also effective to perform a stable recording by performing a preliminary discharge mode in which another discharge is performed.

Regarding the recording head to be mounted and the kind or number of inks, for example, a single color ink and 1
In addition to one provided with a plurality of recording heads, a plurality of heads may be provided corresponding to a plurality of inks having different recording colors and densities, and any combination is effective. The present invention is effective not only as a recording mode of black or the like as a recording mode of the recording apparatus but also in a full-color recording mode of different colors or mixed colors.

In the embodiments of the present invention described above, the ink is described as a liquid, but it is an ink that solidifies at room temperature or lower and that softens or melts at room temperature, or the above-mentioned ink. In the inkjet, it is common to control the temperature of the ink itself in the range of 30 ° C. or higher and 70 ° C. or lower to control the temperature so that the viscosity of the ink is in a stable ejection range. Anything can be used. In addition, in order to prevent temperature rise due to heat energy, ink that is positively used as energy for phase change from solid state to liquid state, or ink that solidifies when left standing for the purpose of preventing ink evaporation is used. In any case, the thermal energy such as the one that the ink is liquefied by the application of the thermal energy according to the recording signal and ejected as an ink liquid, or the one that has already started to solidify when it reaches the recording medium is used. The use of an ink having the property of liquefying for the first time is also applicable to the present invention. In the present invention, the most effective one for each of the above-mentioned inks is to execute the above-mentioned film boiling method.

Further, the present invention is an ink jet system such as a piezo jet system in which electricity is converted into force to eject ink, and a recording head is arranged in non-contact with a recording medium to eject ink for recording. Is effective in.

In addition, as a form of the recording apparatus of the present invention, a copying apparatus which is integrally or separately provided as an output terminal of the information processing apparatus such as the word processor and the computer as described above, or a copying apparatus which is combined with a scanner or the like, Further, it may be in the form of a facsimile machine having a transmission / reception function.

[0053]

As described above, according to the present invention,
Immediately before the reversal position of the reciprocating movement, the rubber foot is integrally provided with a braking means for braking the movement of the recording means or the carriage, so that the collision noise at the time of reversing the recording means or the carriage is substantially not accompanied by an increase in cost. It was possible to reduce the generated noise.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment.

FIG. 2 is a front view of an embodiment.

FIG. 3 is a right side view of FIG.

FIG. 4 is a left side view of FIG.

5 is a left side view of FIG. 4 with the left side plate removed.

FIG. 6 is an explanatory diagram of a carriage drive system

FIG. 7 is an explanatory diagram of a main gear

FIG. 8 is an explanatory diagram of a reversing gear

FIG. 9 is an explanatory diagram of a screw gear.

FIG. 10 is an explanatory diagram of a meshing / disengaging operation of a main gear and a reverse gear.

FIG. 11 is a mutual relationship diagram of a main gear, a reversing gear, and a screw gear.

FIG. 12 is a diagram showing the mutual relationship between the projecting pin and the screw groove during movement of the carriage in the P direction.

FIG. 13 is a diagram showing the mutual relationship between the projecting pin and the screw groove during movement of the carriage in the Q direction.

FIG. 14 is a block diagram around the recording device.

FIG. 15 is a P direction recording operation timing chart.

FIG. 16 is a Q direction recording operation timing chart.

FIG. 17 is a schematic view of a collision portion according to another embodiment.

[Explanation of symbols]

 1 Base Frame 2 Recording Head 3 Carriage 8 Conveying Roller 11 Main Gear 13 Screw (Rotating Body) 13a Screw Gear 13b Screw Groove 13c, 13d Side Wall of Screw Groove 22 Projecting Pins 26a, 26b, 26c, 126a, 126b Rubber Feet 127a, 127b Rubber Foot collision

Claims (3)

[Claims] 1. A recording means for recording on a recording medium, a rotating body having a spiral groove on an outer peripheral portion, the recording means or a carriage on which the recording means is mounted, and the spiral shape is provided. A pin that engages with the groove of, a rotary drive source,
After the driving force transmitting means for transmitting the driving force from the driving source to the rotating body and the recording means by the driving force transmitted from the driving source are moved along the conveyance path of the recording medium. A recording device having means for reversing in the opposite direction and a plurality of rubber feet provided on a base frame, the rubber feet being provided at both ends of the carriage movement range, and the recording means being provided on the rubber feet. Alternatively, a recording device is provided with braking means for braking the recording means or the movement of the carriage immediately before the reversal position of the reciprocating movement of the carriage. 2. The recording apparatus according to claim 1, wherein the recording unit has an ejection section for ejecting ink, and ejects ink from the ejection section to perform recording on a recording medium. 3. The recording means is provided for each of a plurality of ejecting parts for ejecting ink and corresponding ejecting parts, and causes the ink to undergo a state change due to heat, and the ink is ejected from the ejecting part based on the state change. And a thermal energy generating means for ejecting to form flying droplets.
The recording device described.