JPH0615903A - Color printer - Google Patents

Abstract

PURPOSE:To achieve the miniaturization of the clamp mechanism of a printer and a reduction in the cost. CONSTITUTION:A clamp roller 82, capable of holding recording paper 2, and a follower roller 173 are situated further downstream of a platen roller 7. The clamp roller 82 freely rotates counterclockwise only and the follower roller 173 clockwise only. Thus, each of them does not rotate reversely during reversal feed in the reciprocation of the recording paper 2. Additionally, the ejection of the recording paper 2 can also be carried out by rotating the clamp roller 82 counterclockwise by means of a motor.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal transfer color printer using a line thermal head.

[0002]

2. Description of the Related Art Conventionally, various types of printers have been generally known that perform color image printing by melting or sublimating color ink on the surface of a transfer paper by heat of a thermal head and sequentially transferring it to a recording paper. . Below, FIG.
An example of a conventional color printer will be described using. As shown in FIG. 12, a conventional printer device 301 includes a clamper unit 313 that clamps one end of a recording paper 302.
And a transport mechanism 308 and a recording unit 309 for supporting the clamper unit 313 movably in the left-right direction in the drawing (generally, the sub-scanning direction of the recording paper). Further, the printer device 301 uses a recording paper 302 wound in a roll shape in the longitudinal direction, and the recording paper 302 is fed by a transport device (not shown) to a feed roller 320.
Then, the leading end of the feeding roller 320, 321 is clamped by the clamper 310 of the clamper unit 313 via the platen roller 307, and then the recording paper 302 is moved in the width direction of the recording paper 302 by the cutter 303. The recording operation is performed after cutting to a size for one screen.

The clamper unit 313 comprises a clamper 310, a substantially L-shaped sheave portion 324 for transferring the clamper 310, and a solenoid 326 fixed to the sheave portion 324. In addition, clamper 3
10 is rotatably attached by a shaft 325. Further, 324a and 324b are pulleys attached to the pulley portion 324, and are for assisting the movement of the clamper unit 313. The end of the clamper 310 on the recording unit 309 side is bent to improve the clamping of the recording paper 302, and the clamper 3 is attached to the other end.
A solenoid 326 for rotating 10 is provided. Further, the transfer mechanism 308 includes a drive pulley 3 described later.
36, 337, a belt 328 hung on the drive pulleys 336, 337, and the like. Note that FIG.
2, the belt 328 is attached to the recording unit 3
It is provided below the clamper unit 313 so as to be driven by a motor 315 fixed to 09 via belts b and c. Further, the pulley portion 324 includes the belt 32.
It is fixed to 8.

Further, a stage 312 for freely moving the pulleys 324a and 324b fixed to the pulley portion 324 in the sub-scanning direction is provided below the pulley portion 324 so that the pulleys 324a and 324b can be easily moved. There is. The pulley 3 is provided on the recording unit 309 side of the stage 312.
A reflection type position sensor 316 is provided as a detection member for detecting the origin of 24 (recording start position). The recording unit 309 includes the motor 315 as shown in FIG.
Is transmitted to the platen roller 307 and the feed rollers 320 and 321. The feed roller 32
Reference numerals 0 and 321 guide the feeding of the recording paper 302. The feed roller 320 is a roller 32 by a mechanism not shown.
It is biased in one direction. In addition, in the motor 315,
An encoder configured to stop the rotation of the motor 315 by counting a predetermined number of pulses is incorporated.

Furthermore, the feed roller 321 is configured to rotate at a lower speed than the drive pulley 337 by changing the gear ratio so that the recording paper 302 is arranged on the traveling path without slack. In addition, the transfer mechanism 308
A platen roller 307 for receiving a pressure applied to the thermal head 318 during printing is provided between the sheet feeding roller 320 and the feeding rollers 320 and 321. The thermal head 318 is configured to be rotatable about a shaft 317 as a rotation shaft, and the above-described pressurization is performed by rotating the eccentric cam 314 so that the thermal head 318 is evenly provided directly below a heat generating portion arranged on the thermal head 318. It is designed so that a great pressure can be applied. Further, a pair of transfer paper rolls 30 is provided above the thermal head 318.
5, 306 are wound around the transfer paper roll 305,
The transfer paper 311 wound around the 306 is the thermal head 3
18 and the platen roller 307.
Further, in order to guide the smooth running of the transfer paper 311, the guide rollers 332 and 333 are provided before and after the platen roller 307.
Is provided. Then, the recorded recording paper 302 recorded by the printer device 301 is fed by the feed roller 32 after the clamper 310 is released from the clamp.
0, 321, and the sheet is conveyed in the direction of the arrow in the figure and is ejected from a sheet ejection port (not shown).

According to this printer device, because of the above-mentioned configuration, when the recording paper 302 reciprocates, the recording start position of the recording paper 302 can be aligned with high accuracy and a high quality image can be obtained. In addition, since the platen roller 307 having a small diameter is sufficient, the thermal head 318 can also have a small size and the printer device can be made inexpensive.

[0007]

By the way, the above-mentioned FIG.
In the conventional example shown in (1), a high-quality image can be obtained with less misregistration, and at the same time, a small-diameter platen roller can be used. Since a paper feeding operation such as a clamp for holding the recording paper 2 is required every time one sheet is printed, the printing time for one sheet becomes long, and this paper feeding operation causes a paper jam of the recording paper 2. It also causes Further, the size of the recording screen in the longitudinal direction of the recording paper is determined by the clamp unit 3
Since it is determined by the moving amount of 13, the moving mechanism 3
Since the size of 08 in the longitudinal direction of the recording paper needs to be sufficiently large, there is a drawback that the printer apparatus becomes large correspondingly and the cost becomes high.

Therefore, the present invention focuses on the above points and enables a clamp mechanism of a color printer to be constructed at a small size and at low cost, and particularly, a clamp mechanism suitable for a color printer using roll recording paper. It is intended to provide.

[0009]

As a means for achieving the above object, the present invention winds a recording paper wound in a roll shape in the longitudinal direction around a platen roller, and transfers the thermal head to the platen roller via a transfer paper. In a color printer for recording images and characters by pressing the recording paper on the roller and reciprocating the recording paper, the color inks on the transfer paper are transferred in a frame-sequential manner to the recording paper. Both the clamp function that holds the leading edge of the recording paper during the recording operation and the discharging function that discharges the recorded recording paper after the recording operation can be rotated only in the same discharging direction. The present invention aims to provide a color printer which is characterized in that the color printer is used.

[0010]

EXAMPLES A color printer according to the present invention (hereinafter,
Simply called a "printer". ) An embodiment will be described with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the schematic layout of the printer device of this embodiment has a substantially staircase-shaped outer shape. 1 is a side sectional view showing an embodiment of the color printer of the present invention, and FIG. 2 is an external perspective view showing an embodiment of the color printer of the present invention. Figure 1
In the printer device 1, a recording paper storage unit 3 for storing a roll-shaped recording paper 2 in the inside front thereof, a mechanism unit 4 having a main recording mechanism in the central portion, a signal processing circuit unit 5 on the bottom side,
The power supply and mechanism control circuit unit 6 is arranged on the rear side.
Incidentally, 161 is a cutter unit 161 for cutting the recording paper 2 discharged from the paper discharge port 8.

The roll-shaped recording paper 2 is wound in a substantially U-shape around a platen roller 7 in the mechanical section 4 and guided from a paper ejection port 8 to a paper ejection guide section 9 provided outside the printer. The mechanism unit 4 includes a thermal head mechanism unit 10 equipped with a thermal head 91, a cartridge 12 holding a transfer paper 11,
A holding mechanism 13 for holding and discharging the recording paper 2, a storage unit 14 for temporarily storing the recording paper 2 during recording, and the like. Of the exterior of the printer 1, the cover 1 of the recording paper storage unit 3
5, the cartridge 12 and the cover 16 of the storage portion 14
As shown in FIG. 1, the rotary shafts 15a and 16a are rotatable and openable and closable, so that the roll-shaped recording paper 2 and the cartridge 12 can be replaced, and the storage section 14 can be used when a jam occurs. The recording paper 2 can be easily removed. In addition, the cartridge 12 and the storage unit 1
Part of the cover 16 of 4 is made of the transparent member 41,
The recording paper 2 in the storage unit 14 can be observed.

In the printer 1 of the present embodiment, the recording paper 2 is reciprocally moved before and after the platen roller 7 so that yellow, magenta, and cyan (hereinafter, simply referred to as "Y",
Notated as "M" and "C". ) Or 4 colors to which black (hereinafter, simply referred to as “Bk”) is added to perform frame-sequential recording. Since the method 2 is not ejected to the outside of the printer 1, it is possible to prevent dust and dirt from adhering to the recording paper surface during recording, prevent damage to the head, and improve image quality. On the other hand, if the recording state cannot be observed during recording as described above, the user may feel a long waiting time, and defects such as a defect in the recorded image cannot be detected early. However, in this printer, as described above, the cartridge 12 and the cover 16 of the storage unit 14 are
Since a part of the transparent member 41 is formed, the recording paper 2 can be observed from here, and the above-mentioned inconvenience can be eliminated. In FIG. 2, 19 is a display panel for displaying the operating state of the printer 1.

Next, the mechanism section 4 will be described with reference to FIGS. 3 to 6 are views showing a cross section of the mechanism portion 4, and FIG. 3 shows a set state in which the thermal head mechanism portion 10 is set at a position facing the platen roller 7,
FIG. 4 shows a state in which the thermal head 91 is further rotated counterclockwise by the mechanism (not shown) from the state of FIG. 3 and the platen roller 7 is pressure-bonded, and FIG. It shows a retracted state in which it is pivoted largely clockwise and retracted. Further, FIG. 6 shows a state in which the cartridge 12 is removed in the retracted state of FIG. The moving mechanism for moving the thermal head mechanism unit 10 in this way will be described later.

The cartridge 12 is, as shown in FIG.
The left and right frames 27R and 27L and the two stays 28 and 29 that connect them together constitute the frame. The left and right frames 27R and 27L are provided with transfer paper guide rollers 30 and 31 for guiding the transfer paper 11, and further, transfer paper shafts 25 and 26 that are detachable from the cartridge 12 are mounted. This transfer paper axis 2
The transfer paper 11 is wound around 5, 26. Further, the transfer paper shaft 26 is wound up by rotating the transfer paper shaft 26 in the counterclockwise direction in FIG.
The transfer paper 11 can be rewound by rotating 5 in the clockwise direction. A drive mechanism for rotating the transfer paper shafts 25 and 26 is provided on the main body side, and the cartridge 12
In addition, gears (not shown) for transmitting the driving force to the transfer paper shafts 25 and 26 are provided on the transfer paper shafts 25 and 26, respectively. To replace the transfer paper 11, the cartridge 12 may be removed from the main body.

The frame for supporting the mechanism portion 4 is composed of left and right aluminum die-cast frames 17R, 17L, and a substantially Z-shaped stay 18 and an I-shaped stay 39 for connecting these left and right frames 17R, 17L. . The thermal head mechanism unit 10 has a shaft 38 as shown in FIGS.
When the thermal head mechanism portion 10 is in the rotation position on the platen roller 7 side, the fixed claws 20 provided on both the left and right sides of the thermal head mechanism portion 10 are rotatable.
R and 20L (see FIGS. 5 and 6) are left and right frames 17R and 1
The thermal head mechanism unit 10 is fixed by engaging the fixing pins 21R and 21L provided on 7L. The fixed claws 20R and 20L are integrally fixed to the shaft 22 and rotate about the shafts 23R and 23L. The fixed claws 20R and 20L are biased counterclockwise in FIG. 6 by a spring (not shown). To release the engagement between the fixed claws 20R and 20L and the fixed pins 21R and 21L, the fixed claws 20R and 20L are rotated clockwise in FIG. 6 against the biasing force of the spring by a lock release mechanism described later. It is done by 24R and 24L are the left and right frames 17 respectively
A rail for guiding the attachment / detachment of the cartridge 12 formed on the R and 17L, and when the thermal head mechanism unit 10 is in the retracted state, the cartridge 12 has the rail 2
It is configured to be removable in the vertical direction along 4R and 24L.

In FIG. 3, a transfer paper guide roller 97
When the thermal head 91 is pressure-bonded to the platen roller 7, it is configured to enter inside the tangent line circumscribing the clamp roller 82 and the platen roller 7, which will be described later, that is, the platen roller 7 side (state shown in FIG. 4). ). Therefore, it is possible to completely remove the slack of the recording paper 2 that occurs when the recording paper 2 is fed back.

Next, the retracting operation and the setting operation of the thermal head mechanism section 10 will be described with reference to FIGS. As shown in FIG. 9, the shaft 22 integrally fixing the fixing claws 20R and 20L has a left frame 17
It penetrates through the L-shaped long hole 180 and projects to the outside of the left frame 17L. Further, the shaft 38 rotatably supporting the thermal head mechanism unit 10 also penetrates through a bearing (not shown) of the left frame 17L and projects to the outside of the left frame 17L, and the tip of the projecting shaft 38 is driven by the follower. Arm 18
1 is integrally fixed by a screw 182, the driven arm 181 and the thermal head mechanism unit 10 are
And will rotate together. On the other hand, left frame 1
A release knob 184 having a groove is slidable in the left-right direction in FIG. 9 using the rib 183 provided on the upper side of 7L as a rail. A sheet metal base 185 is integrally fixed to the release knob 184, and a pin 186 is crimped on the sheet metal base 185. The pin 186 is a long hole 187 provided at the tip of the driven arm 181 described above.
, And converts the sliding operation of the release knob 184 into the rotational operation of the driven arm 181.

A lock release plate 188 is provided on the metal plate base 185 so as to be slidable up and down in FIG. 9 by a pair of elongated holes 189 and 189 and a pair of guide pins 190 and 190. Further, a spring 191 is hooked between the lock release plate 188 and the sheet metal base 185, and the lock release plate 188 is urged upward in FIG. 9 with respect to the sheet metal base 185 by this spring 191.
Since the bent portion 192 provided on the lower portion of the lock release plate 188 is in contact with the tip portion of the shaft 22,
When the lock release plate 188 is pushed downward against the spring 191, the fixing claws 20R and 20L rotate to rotate the fixing pin 2
It comes off from 1R and 21L (state of FIG. 10).
Further, in the state of the moving mechanism shown in FIG. 9, the thermal head 91 is moved to the platen roller 7 as shown in FIG. 3 or 4.
It is in a position opposite to. Reference numeral 193 is a lock release knob provided integrally with the lock release plate 188.

Next, as shown in FIG. 10, when the lock release knob 193 is sufficiently pushed in, the lock release knob 193 and the release knob 184 have the same height, and in this state, the release knob 184 is moved to the position shown in FIG. If it is slid to the left in the middle, the thermal head mechanism unit 10 is rotated to the retracted state shown in FIG. Here, when the lock release knob 193 is released, the lock release knob 193 is returned by the spring 191, and the state shown in FIG.
Are fixed in the retracted state. Thermal head mechanism section 10
In order to restore the retracted state from the above retracted state to the set state, it suffices to slide the release knob 184 to the right in FIG. 11, whereby the fixing claws 20R and 20L are slid.
Is automatically engaged with the fixing pins 21R and 21L and locked. In this way, the thermal head mechanism unit 10
Can be moved.

When the release knob 184 is in the leftward position (see FIG. 11), that is, when the thermal head mechanism section 10 is in the retracted state, the cover 16 described above has the left side wall portion 1 thereof.
It is configured so that it cannot be closed because 94 hits the release knob 184. On the other hand, the release knob 184
Is in the rightward position, that is, when the thermal head mechanism unit 10 is in the set state, the cover 16 is in the closed state because the notch 195 provided on the left side wall 194 of the cover 16 is at the release knob 184. Is configured to be able to.

Next, the clamp roller 82 of the holding mechanism section 13 will be described with reference to FIGS. 4, 7, and 11. In FIG. 7, the clamp roller 82 is a motor 74.
Gears 77, 76, 81, 8 when driven by
4 and the one-way clutch 83, it is rotatable only in the clockwise direction in FIG. And the motor 7
When 4 rotates in the opposite direction, the one-way clutch 83 prevents the driving force from being transmitted to the clamp roller shaft 85. The gear 78 is a drive mechanism for driving the transfer paper shaft 25, but the detailed description of the drive mechanism will be omitted. When the clamp roller 82 rotates clockwise, the recording paper 2 is ejected from the paper ejection port 8. This clamp roller 82
Is made of a hard material whose surface is provided with a cut shape such as a knurl, and is driven by a driven roller 173 (see FIG. 4).
By sandwiching the recording paper 2 with the
The knurled teeth have been bitten into the back of the. Further, in FIG. 7, a plurality of clamp rollers 82 are provided in the width direction of the thermal head 91, and the clamp roller shaft 85 is rotated clockwise by the one-way clutches 40R and 40L fixed to the left and right frames 17R and 17L. Only possible. Therefore, the recording paper 2
7, the clamp roller 82 does not rotate counterclockwise in FIG. 7 due to the tension of the recording paper 2 during the backward feeding for removing the slack of the recording paper 2 shown in FIG.

The driven roller 173 shown in FIG. 4 is fixed on the shaft 174 at a position facing the clamp roller 82 with the recording paper 2 interposed therebetween, and is made of an elastic member such as rubber. The shaft 174 passes through the left and right frames 17R and 17L in FIG. 11 and passes through the left and right frames 17R and 17L.
The one-way clutches 133R and 133L fixed to the moving levers 132R and 132L on the outer side of FIG.

Next, the moving levers 132R and 132L are
As shown in FIG. 8, it is rotatably supported by the bearings 136R, 136L about a shaft 135 supported by bearings 134R, 134L provided on the left and right frames 17R, 17L. Set levers 137R and 137L are fixed to both ends of the shaft 135, and springs 138R and 138L provided on the set levers 137R and 137L are urged downward in FIG. ing. Note that 139
R and 139L are reinforcing members for the set levers 137R and 137L.

The set levers 137R and 137L are shown in FIG.
Is substantially L-shaped when viewed from the direction of the arrow shown in FIG. 2, and a part of the L-shape is in contact with the upper left shoulder of the moving levers 132R and 132L. Biased in the direction. On the other hand, set levers 137R and 137L to spring 13
By rotating clockwise in FIG. 9 against 8R and 138L, the set levers 137R and 137L cross the dead point and contact the upper right shoulders of the moving levers 132R and 132L this time. The movable levers 132R and 132L are rotated clockwise by the elastic force of 138R and 138L to be in the state of FIG. As a result, the moving lever 1
One-way clutch 133R, 1 on 32R, 132L
The driven roller 173 fixed to the driven roller shaft 174 supported via 33L can come into contact with and separate from the clamp roller 82. That is, when the set levers 137R and 137L are in the counterclockwise rotating position in FIG. 9, the clamp roller 82 and the driven roller 173 are
The recording paper 2 is clamped by the springs 138R and 138L in a pressure contact state. Conversely, the set lever 137
If R and 137L are in the clockwise rotating position, the clamp roller 82 and the driven roller 173 are held in a separated state. And, this spacing is the same as that of the long holes 141R and 141L.
And the pins 142R and 142L planted in the left and right frames.

As described above, the clamping force of the recording paper 2 is generated by the springs 138R and 138L, but the uniformity of the left and right clamping forces affects the registration accuracy. However, since the spring generally has a large variation in parts, it is necessary to adjust the spring force in order to make the left and right clamping forces uniform. Therefore, for this adjustment, as shown in FIG.
One end of R, 138L is set lever 137R, 137L
Of the left and right frames 17R and 17L with screws 145.
The adjustment plates 143R and 143L fixed by R and 145L are hung respectively. The adjusting plates 143R and 143L are rotatable around the shafts 144R and 144L, can be adjusted to appropriate rotational positions, and can be fixed with screws 145R and 145L.

Further, the moving levers 132R, 132L
Is substantially L-shaped, and the tip of one arm enters the inside of the left and right frames 17R, 17L to move the peeling guide plate 146 shown in FIG. 3, and the tip of the other arm is the reverse roller 1
The driven roller 130 is moved toward and away from the drive roller 29. In addition,
The reverse rotation roller 129 is rotated clockwise by a motor (not shown) in FIG. 3 to loosen the recording paper 2 shown in FIG. The peeling guide plate 146 is for separating the transfer paper 11 and the recording paper 2 after recording, and is made of a metal guide plate 147 and support blocks 148R and 148L on both outer sides in the width direction of the recording paper 2. Consists of
It is rotatably supported about a shaft 149 penetrating the support blocks 148R and 148L. Pins 15 are provided on both outer sides of the support blocks 148R and 148L.
0R and 150L (see FIG. 11) are planted and engaged with the long holes 151R and 151L of the moving levers 132R and 132L, respectively. As a result, the moving lever 132
The peeling guide plate 14 is interlocked with the rotation operation of the R and 132L.
The reference numeral 6 is adapted to rotate up and down about a shaft 149 (see FIGS. 3 and 5).

Further, in FIG. 4, light sources 152R and 152L for detecting the respective colors of the transfer paper 11 and positioning them are provided on the lower surface side of the guide plate 147, and the thermal papers facing each other with the transfer paper 11 interposed therebetween. Light receiving elements 153R and 153L are provided on the head mechanism section 10 side. The light source 152R is a red LED and the light source 152L.
Is a green LED. That is, the transfer paper 11 is
The three colors of Y, M, and C are applied in a dangler shape. The part to which the Y ink is applied transmits both red and green, and the part to which the M ink is applied transmits red. Green is opaque, and neither red nor green is permeable in the portion coated with C ink, so that changes in each color can be detected.

Further, in FIG. 4, the storage section 14 is
The recording paper 2 is stored during the energizing operation. If a reset signal (generated from the signal processing circuit 5 by a signal from a detection element (not shown)) is input to the microcomputer of the mechanism control circuit unit 6 during this recording, for example, when the cover 16 is opened, the recording operation is stopped. However, since the recording of the recording paper 2 has ended halfway, it is necessary to eject one screen of the recording paper 2 during recording. The state where the recording paper 2 is stored in the storage portion 14 is as shown in FIG. 4, and the recording paper 2 is curved and has a loop shape and is away from the reflection-type optical sensor 176. Type optical sensor 1
76 is in a state where it does not receive the reflected light from the recording paper 2,
It is detected that the recording paper 2 is stored in the storage portion 14 in a curved loop shape. Therefore, in this case, the motor 74 is driven to discharge the recording paper 2 stored by the clamp roller 82 until the loop of the recording paper 2 becomes smaller and the reflection type optical sensor 176 detects the reflected light. At this time, the time from the start of discharge to the detection of the reflected light is counted, and the time and the clamp roller 82 are counted.
The approximate discharge amount of the recording paper 2 is obtained from the peripheral speed of the recording paper 2, and the remaining amount of the recording paper length for one screen is calculated from this discharge amount, and the platen roller 7 is rotated counterclockwise in FIG. (Not shown) is calculated as the number of pulses to be rotationally driven. After that, the stepping motor and the clamp roller 82
Are simultaneously driven to further discharge. However, in this case,
When the reflected light is not detected by the reflection type optical sensor 176 even if the clamp roller 82 is driven to rotate for a certain time or longer, it is determined that the recording paper 2 is not set normally, and the PAPER LED of the display panel 19 blinks. To stop the operation.

As described above, according to the printer device 1 of this embodiment, the holding mechanism 13 for holding the recording paper 2, that is, the clamp mechanism also discharges the paper, and the transfer mechanism for moving the clamp mechanism and the transfer. Since the control circuit for controlling the mechanism is not required, the printer device 1 can be downsized and the number of parts can be reduced, so that the cost can be reduced. Further, although the clamp mechanism for the recording paper 2 can be made small, the reference position of the recording paper 2 can be stably maintained and a high-quality image with very little misregistration can be recorded.

[0030]

As described above, according to the color printer of the present invention, the next recording operation can be performed immediately after discharging the sheet without performing the sheet feeding operation, so that the recording time can be shortened. Also, it is effective when a plurality of sheets are continuously recorded, and by eliminating the paper feeding operation, it is possible to reduce the occurrence of paper jam of recording paper. In addition, since both the clamp function and the paper discharge function are performed by the same roller, continuous recording can be performed without cutting the roll-shaped recording paper, the recording screen is limited to the longitudinal direction of the roll-shaped recording paper even if the printer device is downsized. Never be done. Further, since both the clamp function and the paper discharge function can be performed by the same roller and the paper feed port and the paper discharge port can be provided separately, the mechanism for switching the paper feed and discharge is not required, and the cost of the printer device can be reduced. There is an effect that can be achieved.

[Brief description of drawings]

FIG. 1 is a side sectional view of a color printer according to an embodiment of the present invention.

FIG. 2 is an external perspective view of a color printer according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a mechanical portion of a color printer according to an embodiment of the present invention (when a thermal head mechanical portion is set).

FIG. 4 is a cross-sectional view showing a mechanical portion of a color printer according to an embodiment of the present invention (during thermal head pressure bonding).

FIG. 5 is a cross-sectional view showing a mechanical portion of a color printer according to an embodiment of the present invention (when the thermal head mechanical portion is retracted).

FIG. 6 is a cross-sectional view showing a mechanical portion of the color printer of one embodiment of the present invention (when the cartridge is removed).

FIG. 7 is a perspective view of a clamp roller rotation drive system of a color printer according to an embodiment of the present invention.

FIG. 8 is a sectional view of a set lever portion of the color printer according to the embodiment of the present invention.

FIG. 9 is a left side view of the mechanism portion of the color printer according to the embodiment of the present invention (when the thermal head mechanism portion is locked).

FIG. 10 is a left side view of the mechanism portion of the color printer according to the embodiment of the present invention (when the thermal head mechanism portion is unlocked).

FIG. 11 is a left side view of the mechanical section of the color printer according to the embodiment of the present invention (when the thermal head mechanical section is retracted).

FIG. 12 is a schematic view of a main part showing an example of a conventional color printer.

[Explanation of symbols]

 1 Printer 2 Recording Paper 3 Recording Paper Storage Section 4 Mechanism Section 5 Signal Processing Circuit Section 6 Power Supply and Mechanism Control Circuit Section 7 Platen Roller 8 Paper Ejection Port 9 Paper Ejection Guide Section 10 Thermal Head Machine Rear 11 Transfer Paper 12 Cartridge 13 Holding Mechanism Part 14 Storage part 15 Cover 16 Cover 17R Right frame 17L Left frame 18 Z-shaped stay 19 Display panel 20R Right fixing claw 20L Left fixing claw 21R Right fixing pin 21L Left fixing pin 22 Shaft 24R Right rail 24L Left rail 25 Supply roll 26 Take-up roll 27R Right side surface 27L Right side surface 30 Guide roller 31 Guide roller 40R One-way clutch 40L One-way clutch 41 Transparent member 74 Motor 82 Clamp roller 83 One-way clutch 85 Clamp roller shaft 91 Thermal head 97 transfer paper guide roller 129 reverse rotation roller 130 driven roller 132R moving lever 132L moving lever 135 shaft 137R set lever 137L set lever 140R spring loaded 140L spring loaded 146 peeling guide plate 173 driven roller 174 driven roller shaft 176 reflection type optical sensor 181 driven arm

Claims (1)

[Claims] 1. A recording paper wound in a roll shape in the longitudinal direction is wound around a platen roller, a thermal head is pressed against the recording paper on the platen roller through a transfer paper, and the recording paper is reciprocated. A color printer for recording images and characters by transferring the color ink on the transfer paper to the recording paper in a frame sequential manner, and a clamp function for fixing and holding the front end of the recording paper during the recording operation on the recording paper, A color printer characterized in that after the recording operation is completed, both the function of discharging the recorded recording paper and the function of discharging the recording paper are performed by a roller rotatable only in the same discharging direction. [0001]