JPS62156966A - Recorder - Google Patents

Abstract

PURPOSE:To control the movement of an ink support film with a simple mechanism without erroneous detection of the position of the film, by providing the ink support film with a region having a reflectance or transmittance different from that of the other part, at a predetermined position of a side end part of the film. CONSTITUTION:When recording, a first feeding roller 109 is driven in response to a printing command, thereby feeding a recording paper 108 to a recording part, and a film-driving motor 152 is rotated forward to feed a film 102 in the direction of an arrow F. When a left-hand first film position hole 205 comes to a point K3, the output of a first photosensor 199 is turned OFF, whereby the motor 152 is stopped. The feeding of the film and the feeding of the recording paper 108 are carried out in an overlapping manner, and the feeding of the film to a left-hand second film position hole 205 is finished before the paper 108 is brought to a recording point K4. The film is thus fed to position the forward end point J4 of a multi-perforated part 203 to the part of heat generating elements, and after the paper 108 is brought into position, the film 102 is moved in synchronization with the leading end of the paper 108.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a clogging-free, natural inkjet recording apparatus, and particularly to a simple 'cL l...! 4'
The present invention relates to a recording apparatus in which film movement can be controlled in step 1.

[Technical background of the invention and its problems] Various non-impact recording methods have been proposed so far, such as an electrostatic method, a thermal paper heating method, a legal transfer method, and an electrophotographic method. Among these, the inkjet method is an extremely superior recording method because it operates quietly with low power, is compact, can be easily made into multiple colors, and has inexpensive components.

However, the reality is that the conventional inkjet method has not been widely used because the problem of nozzle clogging has not been completely solved. In addition, the conventional Infusiera 1 system has the disadvantage that the recording speed is slow because it is difficult to arrange a large number of nozzles closely together, making it difficult to record a large number of dots at the same time.

For this reason, a thermal inkjet method has been proposed in which a large number of permeable holes are formed in a film, ink is held therein, and the ink is heated by a thermal head to cause the ink to fly out by bumping.

This thermal inkjet recording apparatus is provided with various sensors, control circuits, etc. to control the movement of a film that holds ink and to prevent ink from evaporating from a film cartridge that stores the film.

Conventional methods for controlling the movement of this film include counting and controlling the number of rotations of the film drive motor, or installing a disk on the film drive shaft and optically detecting small holes in the disk. Control methods were used.

However, the former method cannot deal with errors such as run errors or malfunctions of the film drive motor, and the latter method requires a disk speed reduction mechanism.

[Object of the Invention] The present invention has been developed in response to the above-mentioned circumstances, and it is possible to control the movement of the film by detecting an error in the film position or by detecting an error in the film position. Saru Record R+7. The purpose is to provide H1.

[Summary of the Invention] In order to achieve the above object, the present invention includes the formation of a large number of minute permeable holes or recesses! An ink ('A') holding film, an ink supply means for holding recording ink in the permeable holes of the ink holding film, and a record that is firmly attached to the ink holding film and held in the permeable holes of the ink holding film. a thermal head that selectively heats the ink; and a moving means that relatively moves the ink retaining film and the recording member disposed on the other side of the ink retaining film. In a recording device, regions having different light reflectances or light transmittances are provided at predetermined positions on the side edges of an ink retaining film.

[Embodiments of the invention] Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is an explanatory diagram of the recording principle of a recording apparatus according to an embodiment of the present invention.

This recording device has 10 orifices with a diameter of 10 to 200 μm.
A film 10 made of a metal-organic material etc. in which a large number of 5 are formed.
2 is filled with recording ink 104, and when the multiple holes 105 filled with the ink 104 reach the heating element 103 of the thermal head 101, voltage is applied to the heating element 1 to rapidly heat it, and the bubbles generated are heated. Recording is performed by ejecting ink droplets using pressure. 107 indicates the orifice after the ink droplet has been ejected.

Next, paper conveyance in this recording apparatus will be explained. .

FIG. 2 is a side sectional view C of this recording apparatus.

First, the recording paper 108 is stored in a cassette l-lI/1.9, pushed upward by a push-up spring 133, and brought into contact with a feed roller 139. Cassette 14
9 is provided with a claw 147 for size identification, so that the size of the cassettes 1 to 1 can be identified by a size identification switch 148 when the cassette device is operated.

The feed roller 109 is activated by the paper conveyance motor 1 shown in FIG.
54 is reversely rotated, it is rotated via gear 155.15G and one-way clutch 163, and the recording paper '108 is fed one by one.

The recording paper 108 rises along the first paper feed guide 14/1, is conveyed by the feed roller 110, and is wound around the tenth roller 112 by the suction belt 115.
It is aligned at the position where the stationary registration rollers 111 come into contact with each other. The registration roller 111 is connected to a paper transport motor 154 shown in FIG. 3 through a one-way clutch section (not shown), and is rotated by forward rotation of the paper 1 general transport motor 154 by the action of the one-way clutch section. It has become.

The first light emitting element 121 and the first light receiving element 122 are paper detection sensors in front of the registration rollers that detect the recording paper 108 that has been fed.

After the recording paper 108 has been aligned by the registration rollers 111, the paper conveyance motor 154 is rotated in the forward direction to rotate the registration rollers 111, and the recording paper 108 is fed to the recording section by the thermal head 10'l. At this time, no power is transmitted to the feed roller 109 due to the movement of the one-way clutch 163 because the paper conveyance motor 154 rotates in the forward direction.

Here, the recording paper 108 is pressed against the recording unit guide 131 by the second floating unit pressing spring 126 through the second floating unit 127 and the suction belt 115, while the recording paper 108 is being pressed by the nipping and conveying force of the registration roller 111 and the tenth roller 112, or Since the recording unit guide 131 is conveyed by the suction conveying force of the suction belt 115, the thermal head 1
It is fixed based on 01. Therefore, the sliding surface of the recording section guide 131 is reliably held at a constant distance from the heating element 1, so that the recording surface of the recording paper 10B is closely pressed against the heating element 1 while the recording surface of the recording sheet 102 is moved by the heating element 1. It can be moved while constantly building up a small gap Q of 2mm between the surface and the surface.

Then, the leading edge of the recording paper 108 further advances and is sandwiched between the paper ejection roller 113 and the 20th roller 11/l. At this time, the recording surface of the recording paper 108 is
Since the surface is needle-shaped, it is possible to avoid the problem of disturbing the undried recorded image.

And recorded recording paper 1081; J: JJI paper 1-
After passing through the 1-ra 113, the sheets 1 to 116Ml+ are discharged. Furthermore, when the recording paper 108 is to be ejected, the second light emitting element 123 and the second light emitting element 1♀1 are used to pass through the film cartridge 1/10.

Fig. 4(a) is a side view of the drive section of the film moving mechanism of this recording device, Fig. 4(b) is a front sectional view of the same mechanism, Fig. 5 is a perspective view of the same mechanism, and Fig. 6 is the same mechanism. FIG.

Film '102 moves upward and downward in response to clockwise rotation and counterclockwise rotation when viewed from the film drive motor gear 158 side of film drive motor 152, respectively.

When the film drive motor gear 158 rotates clockwise as shown in FIG. 4(a), the film drive gear 178 rotates clockwise. Since one end of the left-handed spring 184 fitted to the film moving drive shaft 187 is engaged with the recess of the gear 178, clockwise rotation of the gear 178 causes the left-handed spring to be more tightly wound around the film moving drive shaft 187. The power of the gear 178 is transmitted to the film moving drive shaft 187.

At this time, the film drive gear 159 also rotates clockwise, but acts in a direction to loosen the right-handed spring 183 fitted onto the film moving drive shaft 188 relatively from the drive shaft 188 .

However, in the case of this recording device, the drive lll1l118
Since the right-handed spring 183 and the right-handed spring 183 are rotating in the -1 rotation direction, a substantial slip occurs between the drive 'l'11188 and the right-handed spring 183.

By the way, when removing the shield from the film car 1 to the ridge 140, the drive gear 159.17B is connected to the motor gear 1.
50 and has the risk of leaving the film loose or under too much tension.

However, regarding the latter, in a configuration like this recording device, the drive shaft 188 and the right-handed spring 18
3 slips and can relieve such excessive tension.

The film drive motor 152 uses a pulse motor, and by changing the pulse phase of the pulse signal, forward and reverse operations can be easily performed, and the pulse and frequency can be easily changed. The rotation speed of the motor can be easily changed by changing 411i; Therefore, the feeding direction and feeding speed of the film 102 can be easily controlled.

By the way, the starting and ending positions of the multi-hole section 203 of the film 102 are known, and when the starting position of the multi-hole section 203 in the moving direction of the film 102 comes to the heating element, recording is started. It is necessary to make it possible.

Therefore, a method of controlling the position of the film 102 in this recording apparatus will be explained using FIGS. 7, 8, and 9.

FIG. 7 is a diagram showing details of the positional relationship between the film 102 and a sensor that detects the position of the film 102 with the thermal head 101 at the center.

In FIG. 7, 101 is the thermal head main body, 136.
138 is a winding shaft of the film 102, 142a, 142
193 is a cover for preventing ink stains on the thermal head 101; 194 is a PC on which a drive circuit for driving the heating element 1 is mounted; Board 195 is a 21 connector electrically connecting the PC board 194 and the signal flat cable 196, 197
is made of aluminum 1 normal l\tk 1.1 move A, 1
98 is the first film position (ζ1 detection) for detecting the position detection hole provided on the film 102, 7 Neubar, 1
Reference numeral 99 denotes a lenser 20 to the first film position detection film 711 for detecting the reflected light from the first film position detection film.
0 is a second film position detecting fiber disposed in the device that is separated by a distance G from the first film position detecting fiber 198; 201 is a second film position detecting fiber disposed in the apparatus; Second to detect
The fiber Δ1~sensor 202 includes a light emitting element (L) for transmitting light to the first and second film position detection fibers.
F I) use).

Next, numbers 1 to 5 indicate the positions of the respective parts on the travel path of the film 102. K1 is the second surplus ink cutting part 4J1/l 2i1 on the right side, K2 is the second film position detection fiber 200, K3 is the first film position detection fiber 198, K4 is the heating element 1, and K5 is the second left side These are the positions of the respective parts of the excess ink scraping member 142b.

FIG. 8 is a plan view showing the film 102 in this recording apparatus, and FIG. 9 is a plan view showing the film to be opened in the recording apparatus of another embodiment.

First, a film of another example shown in FIG. 9 will be explained.

In FIG. 9, the film 102 is composed of a multi-hole portion 203 into which ink used for actual recording on the film 102 enters, a left base portion 208 without multiple holes on the film 102, and a right base portion 209. It is configured. Reference numerals 204 to 207 are holes through which the film position is detected by the film position detection fibers 198 and 200, and as shown in the figure, the multi-hole portion 203 is located in a direction perpendicular to the running directions E and F shown by the arrows. They are provided at positions that do not overlap with each other, that is, at positions on the end surface side J9 of the film 102.

These holes are the first film position holes 20 on the left side that indicate the completion of film travel when the film 102 is fed in the E direction.
4 and the right side showing the completion of film travel when the film 102 is fed in the F direction) 1 Film position hole 207 and the printing start position and printing end position in the F direction when the film is fed in the F direction. The second film position hole 205 on the left side, the printing start position and F when the film is fed in the [direction].
The second film position on the stone side indicates the printing end position in the direction [consisting of the a hole 206].

J1 to J8 in FIG. 9 indicate the positions of the position holes and the multiple holes on the film 102, and Jl is the left end portion 1 of the film 102. )2 is the first film position hole 204 on the left side, J3 is the second film position hole 205 on the side
J4 is the left end of the multi-hole section 203, J5 is the right second film position hole 206, and J6 is the multi-hole section 2.
The right end of 03, Jl is the first film position hole 2 on the right side.
07 and J8 represent the positions of the right end of the film 102, respectively.

In addition, among the film position detection holes 20=1 to 207, the film position detection holes 204 and 207 are formed from only or a plurality of holes, and the pitch of the plurality of holes is as follows. .

The hole pitch 1-1 of the first film position holes 204.207 is equal to the distance G (between K2 and 3) between the first and second film position detection fibers 198.200 shown in FIG. . In other words, the relationship is G1=G,
Further, the second film position holes 205 and 206 are single holes.

Therefore, the first and second film position sensing fibers 1
1st and 2nd photosensor-1 connected to 98.200
When the parts other than the film position holes 204 to 207 are at the positions 2 and K3 in FIG. 7, the outputs of 99 and 201 are turned on by the reflected light reflected from the film.

If there are any of the film position holes 204 to 207 at positions 2 and 3, the output of the corresponding photosensor is turned off, and the hole can be detected.

Furthermore, the configuration of the first and second film position holes is as follows:
It has a plurality and a singular configuration, and the first film position hole 2
Since the pitch interval of 04.207 is in the relationship G=H, the plurality of first film position holes 20=1.
When 207 comes to the above 2, K3 position, the 1st, 27th
Both outputs of Renly to 711 are 4j in the OFF state.

In addition, since the second film position hole 205.20(') is a single hole, the output of the first and second holes A1~lenser is turned OFF according to the respective holes. (,j.

However, both will not be turned off.

' By the method explained above, the two positions of the film 102 can be determined.

Next, the relationship of 1 to 5 in each element position in FIG. 9 is as follows.

■J1-J2>K2 (K3)-6 ■J2-J4>K2 (K3)-5 ■J3-J4<K2 (K3)-4 ■J4-J6 is the maximum recording paper size (△/l) Approximately 1/2 of the longitudinal direction ■J5-J6>K2 (K3)-4 ■J6-J7>K2 (K3)-1 ■J7-J8>K2 (K3)-7 Under the above conditions It is assumed that K2 and K3 are located at almost the same position.

Next, the feeding control of this film 102 will be explained.

First, in FIGS. 7 and 9, it is assumed that the first and second film position detection fibers 198 and 200 are located at positions 2 and K3 on the film 102 between J4 and J5 in FIG. , this situation is rare).

In this case, the film's
102 is sent in the E direction by rotating the film drive motor 152 in the reverse direction. Then, when the first left film position hole 204 comes to the positions K2 and K3, the outputs of the first and second photo sensors both turn OFF as described above, and this signal is identified by the microprocessor described later. As a result, the film drive motor 152 is stopped. Normally, printing is completed at this position when the power is turned on.
It becomes the predetermined position of 17 o'clock.

At this time, the non-perforated portion 209 of the film 102 covers the exposed portion of the film in the film cartridge 1/'l○,
The multi-hole portion 203 serves as the first and second excess ink scraping means 141 and 142 of the film cartridge 140.
It is housed in the ink supply section below.

Then, the non-hole portion 209 of the film car 1 to the film 140 (31,
142b is designed to hold it in place, so it is sealed from the outside air.

Therefore, in this state, as in the case where the multi-hole section 203 is exposed, the recording ink inside the film cartridge may evaporate from the multi-hole section 203 and the viscosity of the ink may deteriorate. It is possible to prevent problems such as falling out of the orifice 102, or the ink becoming highly viscous and ejecting, which would adversely affect the recording.

When performing print recording, the first feed roller '109 is driven in response to a print command from an external device to feed the recording paper 108 to the recording area, and the film drive motor 152 is rotated forward (see FIG. 4(a)). L1 direction) and feed the film 102 in the F direction.

Then, the first film position hole 20 on the left side is placed at three points in Figure 7.
5, the output of the first photo sensor 199 turns OFF.
As a result, the film 102 is moved by stopping the film drive motor 152.

This film feeding operation is performed in a manner that overlaps with the transporting operation of the recording paper 108.
The film feeding operation up to 05 is better than the recording paper 10.
8 is completed before reaching 4 points.

In this way, the film is moved to position the end J4 of the multi-hole portion 203 in the advancing direction at the heating element 1, and after waiting for the arrival of the recording paper '108, the film 102 is moved in synchronization with the leading edge of the recording paper '108. move.

At this point, the moving speed of the film 102 is set to the recording paper 108.
1/2 speed of movement speed 40111 m/s 2Q mm
/ Must be s. In fact, even when the speed V of the recording paper 108 is varied between 10 and '100111111/S as shown in FIG. 10, the recording density of the recording paper 108,
That is, if the coverage is 75%, regardless of whether the relative movement direction of the film 202 and the recording paper is the same or opposite, if the movement speed of the film 102 is V/4 or more, Dl, 0 (black stain, coverage rate 75%) or higher.

Therefore, the movement "1" of the film 202 can be made shorter than the recording length (recording direction) of the recording paper, and therefore, the area of the multi-hole portion 203 of the film 102 can be reduced, and the production of the film 102 can be made shorter. In other words, if the area of the multi-hole portion 203 is large, it is difficult to make the orifice diameter (25 to 30 μm) uniform over the entire area. It is possible to solve the problem of the opening becoming smaller near the periphery and causing unevenness in the opening degree (recorded).

In normal (A4 size) printing operation, the heating cable 1
The information is recorded on the recording paper 108 by applying a voltage to the information according to the print information.

The positional relationship between the film 102 and the recording paper is that the film is about 1/2 the size of the recording paper (A4), so as soon as printing on the recording paper is completed, the right end of the multi-hole section 203 of the film 102 is placed at point K3. The output of the first photo sensor 199 becomes 0 when the film position hole 206 indicating
FFL, the microprocessor to be described later is the film 102
The end of the multi-hole portion 203 is recognized.

After the recognition, the film 102 is sent in the F direction until the first and second photo sensors 199 and 201 detect the first film position hole 107 on the right side in preparation for the next printing operation.

At the same time, the recording paper on which recording has been completed is conveyed as it is, passes through a paper discharge roller 113, and is discharged onto a paper discharge tray 116, completing a series of paper feeding and printing operations for one sheet.

In addition, when printing on the next recording paper, the same +1. 'l, film 102
is sent in the E direction, contrary to the previous time. In other words, in Figure 9, the previous time! 15 On the contrary, the start part of the multi-hole portion 203 where the second film position hole 206 on the right side enters the printing operation;
The second film position hole 205 on the left side is the multi-hole portion 205.
The end portion of the film 102 and the left first film position hole 204 function as a stop portion of the film 102 after printing is completed.

In this way, when recording on odd-numbered recording sheets in continuous recording, the ends of the first and second surplus ink scraping means 141Jj and the multi-hole portion 192 on the 142 side are film-wrapped (J-S'). After being caught in the I'll+ 136 and supplied with recording ink, it returns to the heating element 1 again and moves to cover the film 102 in synchronization with the leading edge of the recording paper 108.Such a film Since printing can be continued by the reciprocating movement of 102, continuous recording is possible even without endless film.

Note that the film of this embodiment shown in FIG. 8 is provided with film movement detection holes 360 instead of the second film position holes 205 and 206.

FIG. 11 is a diagram showing the positional relationship between the film winding shaft 136 and the ink supply member 137 in FIG. 3.

At a3 in FIG. 11, a film 102 is wound around a film winding shaft 136, and the film 102 is in contact with an ink supply member 137.

Therefore, since the ink supplied from the ink supply 172 is stored in the ink supply section (Δ), when the film 102 is conveyed by the film drive motor, it passes through the contact surface to the multiple holes in the film 102. is filled with ink.At this time, since the width of the multi-hole portion of the film 102 is D3 in FIG.
Ink does not adhere to the portions with widths L and D2, that is, the film position holes and film movement detection holes in FIGS. 8 and 9.

As explained above, by creating this structure,
Is there any ink on the film that passes over the film position detection sensor? It is true.

Next, the control system of this recording apparatus will be explained.

FIG. 12 is a diagram showing the relationship between the host system 2/19 and the printer 250, and print data and =1 cloak data sent from the host system 2/19 to the printer interface unit 2! Receive at U1.

In the printer interface section 251, f)! IW
1 Upon receiving the command data, the print mode is set for the hammer 1 to the control section 252. Regarding print data, there are two types: character data, bit image data, and key (7-bit data). The data is expanded into a file and sent to the printer control unit 252. In the case of bit image data, the data is sent as is to the printer control unit.

FIG. 13 is a block diagram of the printer interface section 251.

This printer interface section 251 includes a microprocessor 253 that controls the entire printer interface section 251, and a microprocessor 253 that controls the entire printer interface section 251, and print and command data from the host system.
General-purpose serial interface (R8-2
32G) 254, and a general-purpose parallel interface (based on Centronics) 255.

Also, a receiving buffer RAM 25 for temporarily storing data input via the general-purpose interface.
6, and the receiving buffer 256 when receiving character data.
a working RAM 257 used when expanding the data in the CGROM into bit image data; a RAM 258 for registering external characters loaded from the host system when using a character pattern not registered in the CGROM;
A program ROM 259 that stores a program that controls this printer interface section, and a CGROM 2 that stores character patterns that are standard equipment.
59 and a cassette CGROM2 that stores character patterns other than the above-mentioned CGR(,)M260 and can be inserted from the outside.
61 and a Kanji CG board 262 which mainly stores JIS 1st and 2nd level Kanji patterns are mounted l'.

Furthermore, there is a DMA controller 263 that controls DMA transfers performed when receiving image data from the host system and when developing character patterns of character data, and a DMA controller 263 that controls DMA transfers that are performed when receiving image data from the host system and when developing character patterns of character data. Serial communication and control between an interrupt controller 264 for controlling interrupt operations and the serial interface 254
an LSI 26 for controlling parallel communication with the parallel interface 255;
6, a reference clock to the serial communication control LSI 265, and a timer/counter LSI 267, 268 for performing various time controls and count controls to a printer data transfer controller 272 (described later), a printer data transfer controller, and Printer control unit 252
Parallel I1 for receiving/transmitting control signals with
1sI 269 for 0, image buffer RAM 270.271 where bit image data is temporarily stored and used alternately when transmitting data to the printer control unit, and image buffer RAM 270. A controller group is provided including a print data transfer controller 272 that controls transmission data when sending data to the printer control unit 252 that prints the data.

FIG. 1/'1 is a block diagram inside the print control section 225.

The print control unit 225 includes an oscillator 273 for generating a reference clock supplied to each timer circuit, microprocessor, etc. in the print control unit, a microprocessor 274 for controlling the entire print control unit, and a print data control unit. For circuits, interface circuits, tines, etc., +! aj control circuit 275 and pudding 1 to 11
Mechanical timing of control unit (paper feed, paper pickup,
The programmer 276 has a plurality of channels for controlling various functions.

In addition, a ROM 277 containing a built-in program for controlling the print control section, a data table ROM 278 containing various timing data, and a working RAM 279 are installed, and the operation keys are roughly arranged. and an operation display section 280 including an indicator lamp for displaying the operating status of the printer;
Display signal 113J: input/output capo 1/281 that controls the input/output of human input signals, various detectors 282 for paper detection, ink detection, etc. in the print control section, and the input signal from the microprocessor. A human power port 283 for manually applying power to the printer, a fan motor for cooling the inside of the machine, and a heat retention heater 28 for warming the ink in the ink cartridge.
4, a drive circuit 285 for driving this moisturizing heater, and an output port 28 for sending a drive signal to this drive circuit.
6, a pulse motor 287 for sheet 1 general feed and film transport, a drive circuit 288 comprising a phase switching and forward/reverse control circuit for this pulse motor, and a drive signal is sent to the pulse motor drive circuit. a print data control circuit 290 that controls the thermal head based on the print data sent from the interface circuit, an interface circuit 291 with the printer interface section 251, and a power supply circuit for this recording device. 292, and power off in the power supply circuit.
An input/output port 293 for inputting/outputting signals such as an F detection signal and a control signal for a power supply control relay is connected to the microprocessor 274 .

FIG. 15 is a detailed diagram of the various detectors 282 in FIG. 14.

This detector 282 includes a first paper detection sensor provided in front of the registration roller 111 to detect the paper sent from the paper feed section, and a paper detection sensor that is installed in front of the registration roller 111 to detect the paper sent from the paper feed section, and a paper detection sensor that detects the paper that has been printed and is normally ejected from the ejection roller 113. A second paper detection sensor 1 provided immediately after the paper ejection roller 113 to detect whether the
2/1 and a cassette size identification switch 1/I consisting of a plurality of switches J: to detect a plurality of paper sizes in combination in order to identify the paper size in the paper cassette.
8, and first and second incrementers 17 for detecting the amount of ink in the ink bottle and ink cars 1 to Azalea.
6.179, a first film position detection sensor 199 for detecting the position of the ink film, and a second film position used to detect two points: the print start point on the film and the ink cartridge shield point. There are a detection sensor 201, a film movement detection sensor 308 for detecting movement of the ink film, and the like.

FIG. 16 shows character data printing n:11. B2c is a diagram showing the timing of data transfer between the printer interface section and the printer 1 to control section and the driving of each pulse motor of the print control section.

The printing operation will be explained along timing charts 1 to 1 in FIG. 16.

In FIG. 16, when the printer interface unit receives print data from the host system, it checks the status of the print control unit by sending a status command in accordance with the print conditions.

As a result, after the print control section determines that printing is possible, a command specifying printing conditions is sent to the print control section to set the printing conditions.

Thereafter, as shown in FIG. 16, the print start signal PS (ATI) is set to the "H" level.

When the print control unit receives the PS lower AT1, it rotates the paper conveyance motor 154 in the opposite direction, rotates the feed roller 109, and takes out one recording paper 108 from the cassette. Then, the taken out paper is further conveyed by the feed roller 110 toward the registration rollers 111 .

Then, when the leading edge of the transported paper reaches the first light receiving element 122 for paper detection, the first light receiving element
Detect the leading edge of paper. This detection signal is input port 2
83 to the microprocessor.

After the microprocessor identifies the detection signal,
After the timer 276 is set to 1 and the paper is transported for a fixed number of 11.1 questions, the paper transport motor is stopped. By performing such an operation, the leading edge of the paper is aligned by the registration rollers.

Further, the ink film is driven by a film drive motor 152 and conveyed to a printable position in parallel with the previous paper feeding operation being performed.

In other words, in Fig. 8, this film set] ~ operation is as follows.
Starting from left or right film position hole 204 or 207. FIG. 16 is illustrated starting from the state in which the first film sensor detects J2 in FIG. 8.

When the PSTAT1 signal is received, the microphone [1/' r:
I-1=Tsur sends a pulse motor drive pulse through the output boat 289 so that the film drive motor rotates in the forward direction. After this, the rotation speed of the pulse motor is controlled. By setting and operating the timer 276 to a timer value corresponding to the high speed mode, the film drive motor rotates in the forward direction at a rotational speed of '1' (high speed). Therefore, the film 102 is fed in the direction F in FIG.

At this time, the film feed counter provided in the working RAM 279 of FIG. 14 is incremented by 1 every time the pulse motor drive pulse is sent out. Therefore, the pulse motor driving pulses are sent out until the value of the counter matches the number NA of pulses up to the J4 point stored in the ROM 278 (data table). Therefore, when the counter reaches NA, the film drive motor stops and the multi-hole portion of the film reaches above the thermal head.

Then, when the recording paper feeding operation described above is completed, a page synchronization signal PSYNCO is sent to the printer interface unit. Upon receiving this signal, the printer interface section sets the print stop signal 5TOPO to the IH1 level and permits transmission of the horizontal synchronization signal.

In the print control unit, the paper drive motor (RFM) 154 is rotated in the normal direction in order to generally feed the paper stopped by the registration rollers to the thermal head.

Then, from the time when the leading edge of the paper reaches the thermal mark 1, a horizontal synchronizing signal 15YNCO is sent to the printer interface section.

This H3YNCO signal is sent for the length of the paper shown in 17I-. Further, in response to the sending of the 1-ISYNCO signal, the film drive motor is driven, and the ink film is transported at 1/2 the paper transport speed.

That is, driving pulses are sent from the microprocessor once every two times for the t15YNCO signal.

When the l-ISYNCO signal corresponding to the length of the paper is sent out, the film is further fed in the direction F in FIG. 8 in the aforementioned high speed mode. When the first film sensor detects the film position hole 207 at point 07 in FIG. 7, the drive of the film drive motor is stopped. In this state (,j, the multi-hole portion 203 of the film is
Ink car 1 ~ Ink car 1 because it is stored in the lid
-The ridge is sealed from the outside.

Further, the drive of the paper conveyance motor is stopped when the trailing edge of the recorded paper passes over the second light receiving element 124 provided in the paper discharge section. When this paper ejection is completed,
The PSYNCO signal changes to (H level) and enters a standby state in which it is possible to accept the start of the next print.

In this state, the next print start signal PSTAT1
Once the signal is received, the operation of the print control section is almost the same as the first printing operation, but only the operation of controlling the conveyance of the ink film is included. In other words, this time the film has stopped after detecting point J7 in Figure 21, so the transport direction is fed in the F direction, and the pulse corresponding to NB is sent to the ink film drive motor until point J6, which is the printing start point. It will be given to you.

[Effects of the Invention] As explained in detail above, according to the present invention, regions with different light reflectances or light transmittances are provided at the side edges of the film, so that the film position can be detected incorrectly. Film movement can be controlled with a simple mechanism.

[Brief explanation of drawings]

FIG. 1 is a diagram explaining the recording principle of a recording device according to an embodiment of the present invention, FIG. 2 is a side sectional view of the same recording device, FIG. 3 is a longitudinal sectional view of the recording device, and FIG. 4 is the same. 5 is a perspective view of the ink cartridge of the recording device, FIG. 6 is an internal perspective view of the ink cartridges 1 to 1 of the recording device, and FIG. 7 is a diagram explaining the film position detection means of the same recording device, FIG. 8 is a film configuration diagram of the same recording device, FIG. 9 is a film configuration diagram of another embodiment of the present invention, and FIG. 1Q is the same. FIG. 11 is a diagram explaining the relationship between film speed and density of the recording device; FIG. 11 is a diagram explaining the ink supply section of the recording device; FIG. 12 is a block diagram of the control system of the recording device; FIG. 13 is a 10-step diagram of the printer interface section of the same recording device, and Figure 14 is the same recording '! Block diagram of pudding 1 to control unit between A, No. 15
The figure is a detailed diagram of the detector of the same recording device, FIG. 16 is a timing chart diagram explaining the operation of each pulse mode of the same recording device, and FIG. 17 is a time chart diagram explaining film movement detection of the same recording device. be. 204-207...Film location applicant Toshiba Corporation Agent Patent attorney Suyama Sa - Soon Figure 1 (a) (b) Figure 4 Figure 50 Procedural amendment (method) Showa 6 "April 2nd 1, Display of the case Patent application 1986-2976 February 2nd, Title of the invention Recording device 3, Person making the amendment Relationship to the case Patent applicant 72 Horiyo-cho, Saiwai-ku, Yozaki City, Kanagawa Prefecture Address (307) Toshiba Corporation 4, Agent 2-1 Kanda Tamachi, Chiyoda-ku, Tokyo 101 March 25, 1986 (Shipping date) 6. Column for a brief explanation of the drawings in the specification subject to amendment 7. “Figure 17 is the same record diagram” on page 37, line 1 of the statement of contents of the amendment.
Delete. End of May 27, 1988

Claims (5)

[Claims] (1) An ink holding film in which a large number of minute permeable holes or recesses are formed, an ink supply means for holding recording ink in the permeable holes of the ink holding film, and an ink supplying means that is in sliding contact with the ink holding film to hold recording ink. A thermal head that selectively heats recording ink held in a transmission hole of a holding film, and movement that relatively moves the ink holding film and a recording member placed on the other side of the ink holding film. What is claimed is: 1. A recording device comprising: a recording device comprising: a recording device comprising: a recording device comprising: an ink-retaining film having regions having different light reflectances or light transmittances at predetermined positions on a side end portion of the ink retaining film; (2) The recording device according to claim 1, wherein the regions having different light reflectances or light transmittances are provided at least at a portion for detecting a print start position and a film storage position. (3) The recording device according to claim 1 or 2, wherein the regions having different light reflectances or light transmittances are small holes formed on the running line of the film. (4) The recording device according to claim 3, wherein the regions having different light reflectances or light transmittances have different numbers and pitches of small holes for each detection site. (5) The recording apparatus according to any one of claims 1 to 4, wherein the ink supply means has a width smaller than the width of the film.