JPS62161252A - Portable printer - Google Patents

Abstract

PURPOSE:To record a desired image on an optional position on the optional size of recording paper face by controlling the sending of the image signal of an image signal sending section and the recording of the image of an image recording section on the recording paper based on a timing signal in response to the turning of a running roller. CONSTITUTION:The disk 20a of a rotary encoder 20 is turned by the turning of the running roller 14A and a timing pulse signal in response to the turning of the running roller 14A is obtained from the rotary encoder 20. A control circuit section applies the operation control of an image signal sending section and a thermosensing recording section 17 provided in a control block 19 based on the timing pulse signal from the rotary encoder 20. In the thermosensing recording section 17, the thermal heads arranged in its low end part 17a are operated sequentially in response to the image signal fed sequentially by the one line image and the recording of the line image by the thermosensing recording to the recording paper 21 is executed sequentially.

Description

[Detailed description of the invention] The present invention will be explained in the following order.

A. Field of industrial application B. Overview of the invention C. Prior art D. Problem to be solved by the invention E. Means for solving the problem F. Effect G. Example G-1 Configuration of the first example (first G-2 Image recording operation (Figure 1) G-3 Configuration and operation of the circuit system in the first embodiment (Figures 2 and 3) G-4 Configuration of the second embodiment (Figure 4) (Fig. 5) G-5 image reading/recording operation (Fig. 4).

Figure 5) G'-6 Configuration and operation of the circuit system in the second embodiment (
(Figures 6 and 7) G-7 Modification H Effect of the invention A Industrial field of application The present invention provides an image based on an image signal read out from a memory or supplied from the outside. The present invention relates to a portable printing device that records on recording paper.

B. Summary of the Invention The present invention transmits an image signal read from a built-in memory or an attached memory, or an image signal supplied from the outside, from an image signal sending unit to an image recording unit, and the image recording unit converts the image signal into an image signal. A portable printing device that records an image based on By controlling the operation of the image signal sending unit and the image recording unit, it is possible to record an image at any position on the recording paper by a simple operation such as manually moving the image on the recording paper. It was made so that it could be done.

C. Prior Art Various printers have been proposed that reproduce images on paper based on electrical signals that produce images, that is, image signals. Such printers are classified into thermal recording types, inkjet recording types, don't recording types that use ink ribbons, etc. depending on the type of printing head, but they are generally built as stationary equipment and can be used with various computers, word processors, etc. It is used by being connected to an information signal processing device, and records an image on recording paper according to an image signal supplied from the information signal processing device.

D. Problems to be Solved by the Invention The conventionally proposed printers as described above are usually operated by being installed at a specific location and loaded with recording paper having a predetermined size. It is assumed that an image recorded on the attached recording paper is obtained. For this reason, it is extremely convenient to record an image based on a preset format on a predetermined recording paper, but it is difficult to record a desired image at any position on a recording paper of any size. However, this method has the disadvantage that image recording cannot be performed freely with simple operations.

In view of these points, the present invention is provided with an image recording section that is brought into contact with a recording paper and records an image based on an image signal on the recording paper, and is formed in a relatively small size as a whole. In use, a desired image can be recorded at any position on a recording paper of any size by a simple operation of moving the image recording section on the recording paper while it is in contact with the recording paper. The purpose of the present invention is to provide a portable printing device that is portable.

E. Means for Solving the Problems In order to achieve the above-mentioned object, the portable printing device according to the present invention includes an image signal sending unit that sends out an image signal read out from the memory or an image signal supplied from the outside. and an image recording section that records an image based on the image signal transmitted from the image signal transmitting section to the recording paper by being brought into contact with the recording paper. A running roller rotates in contact with a surface, and a timing signal corresponding to the rotation of the running roller is obtained, and based on the timing signal, an image signal sending section sends out an image signal, and an image recording section records the image on recording paper. and an operation control means for controlling.

F Effect In the portable printing device according to the present invention configured as described above, when the image recording section is brought into contact with the recording paper and is moved over the recording paper surface, the running roller moves against the recording paper surface or , rotates while in contact with the surface on which the recording paper is placed. Then, a timing signal corresponding to the rotation of the traveling roller is obtained in the operation control means, and an image signal sending section is built in or attached thereto under control based on the timing signal by the operation control means. The image signal read from the memory or the image signal supplied from the outside is supplied to the image recording section, and the image recording section records the image on the recording paper based on the supplied image signal. As a result, images are sequentially recorded in the portion of the recording paper where the device has moved as the device has moved.

Therefore, for example, a desired image can be recorded at any position on a recording paper of any size by simply manually moving the entire device on the recording paper, and it can be operated with one hand. It is said that

G Example G-1 Configuration of the first example (FIG. 1) FIG. 1 shows an example of a portable printing device according to the present invention. This example has a case 10, and a bottom surface 10A of the case 10 includes a recording section opening 11 and a pair of roller openings arranged at positions sandwiching the recording section opening 11. Part 12
a and 12b, and a card memory attachment/detachment hole 13 is provided in the top plate portion 10B of the case 10.

A pair of running rollers 14A and 14B move a portion of the bottom surface 10A of the case 10 from the roller openings 12a and 12b, respectively.
It is arranged so as to protrude outside A and to be freely rotatable. The shafts of these running rollers 14A and 14B are supported by bearing members 16a and 16b, respectively, attached to both sides of a support member 15 fixed within the case 10. Further, a heat-sensitive recording section 17 forming an image recording section is located at a position sandwiched between the running rollers 14A and 14B in the casing 10 on the front surface 10C of the casing 10.
and insert its lower end 17a into the recording section opening 1.
1 to the outside of the bottom surface 10A of the case 10. The thermosensitive recording section 17 is connected to the support member 15
The lower end portion 17a has a built-in thermal head, and the end face thereof is in contact with the surface of the recording paper 21 to perform thermal recording on the recording paper 21.

Further, a card memory attachment/removal hole 1 formed in the top plate part 10B is provided on the side of the top plate part 10B of the case 10 inside the case 10.
An image signal sending unit to which a card memory 18 inserted from 3 is mounted, and a control block 19 containing a control circuit unit are disposed under support by a support member 15. The image/signal sending unit provided in the control block 19 reads the image signals stored in the card memory 18 inserted through the card memory removable hole 13 and reads out the image signals corresponding to one line image, for example. The images are sequentially sent to a thermal recording section 17 forming an image recording section. Further, the control circuit section built in the control block 19 is electrically connected to each of the image signal sending section, the thermal recording section 17, and the row encoder 20 provided in relation to the traveling roller 14A. Based on the timing pulse signal obtained from the Cryo encoder 20, the image signal sending section sequentially sends out the image signals read from the card memory 18 to the thermal recording section 17 one line image at a time, and
The operation of recording an image on the recording paper 21 in the thermal recording section 17 is controlled in accordance with the image signal from the image signal sending section.

The roller encoder 20 is connected to the shaft 14 of the running roller 14A.
The disk 20a is attached to Aa and has a large number of slits arranged in the circumferential direction of the disk 20a, and a photosensor 20b is arranged to detect the slits of the disk 20a.

Then, when the disk 20a rotates with the rotation of the running roller 14A, a timing pulse signal corresponding to the slit of the disk 20a detected by the photosensor 20b, and thus corresponding to the rotation of the running roller 14A, is sent from the photosensor 20b. is obtained and supplied to control process 19.

G-2 Image recording operation (Fig. 1) When an example of the portable printing device according to the present invention having the above-mentioned configuration is used to record an image on recording paper, The card memory 18 is inserted through the card memory attachment/detachment hole 13 formed in the top plate portion 10B of the body 10.
is inserted and attached to an image signal sending section provided within the control block 19. Then, the recording section opening 1
The end surface of the lower end 17a of the heat-sensitive recording section 17 protruding from the bottom surface 10A of the case 10 from 1 is in contact with the surface of the recording paper 21, and the roller openings 12a and 12b of the running rollers 14A and 14B, respectively. The case 10 is moved over the surface of the recording paper 21 with the portion of the housing 10 protruding from the bottom surface 10A brought into contact with the surface of the recording paper 21. From there, running rollers 14A and 14B
rotates while in contact with the surface of the recording paper 21.

At this time, the disc 20a of the rotary encoder 20 rotates as the running roller 14A rotates, and the rotary encoder 20 outputs a timing pulse signal corresponding to the rotation of the running roller 14A. A timing pulse signal corresponding to the moving speed is obtained and is supplied to a control circuit built in the control block 19.

The control circuit unit controls the operation of the image signal sending unit and the thermal recording unit 17 provided in the control block 19 based on the timing pulse signal from the low-resolution encoder 20.

After the control circuit section built in the control block 19 controls the operation based on the timing pulse signal from the low-resolution encoder 20, the image signal transmission section reads out the image signal from the card memory 18 in one line. The image signals are sequentially read out for each image, and the read image signals are sequentially sent to the thermal recording section 17. In the thermal recording section 17, after the control circuit section controls the operation based on the timing pulse signal from the low reencoder 20, the image signal sending section sends a signal.
In response to image signals sequentially supplied corresponding to line images, the thermal head disposed within the lower end portion 17a is activated, and line images are sequentially recorded on the recording paper 21 by thermal recording.

In this way, as the case 10 moves on the recording paper 21, the lower end 1 of the thermal recording section 17 is placed on the recording paper 2.
An image based on the image signal read from the card memory I8 is recorded in the portion through which the signal 7a passes.

G-3 Configuration and operation of the circuit system in the first embodiment (FIGS. 2 and 3) The thermal recording section 17 performs the operation for recording an image on the recording paper 21 as described above. The configuration of a circuit system including a control block 19 containing an image signal sending section and a control circuit section, and a low reencoder 20 is, for example, as shown in FIG. 2. In this example, the image signal sending unit 3175<(M The thermal recording section 17 also receives the image signal from the image signal sending section 31.
A line memory 33. latches the image signal captured in the line memory 33. A head drive unit 34 to which the image signal latched by the line memory 33 is supplied;
The thermal head 35 is driven by a thermal head 35.

On the other hand, a control circuit unit 36 built in the control block 19 is connected to the output end of the low-resolution encoder 20.
The control circuit section 36 supplies the timing pulse signal from the rotary encoder 20 to the memory control '4'in signal generation section 30 of the image signal sending section 31 through the switch 37, and also supplies the timing pulse signal from the rotary encoder 20 to the switch 37. 37, and further controls the switch 37 based on the timing pulse signal from the low reencoder 20 and the output signal from the recording unit drive signal generator 38. It has a control section 39. The recording section drive signal generating section 38 supplies control signals to the line memories 32 and 33 and the head driving section 34 to the thermal recording section 17 .

Based on this configuration, when the operation of recording an image on the recording paper 21 is performed, the rotary encoder 20
For example, a running roller 14A as shown in FIG.
A timing pulse signal RE is obtained according to the rotational speed of the housing 10 and, therefore, the moving speed of the housing 10 on the recording paper 21.
This is connected to the memory control signal generator 30 via the switch 37.
and is supplied to the recording section drive signal generation section 38. As a result, from the memory control signal generating section 30, for example,
As shown in FIG. 3, the addressing signal ADS is supplied to the card memory 18 in response to each timing pulse signal RE under a condition in which the timing pulse signals RE arrive at intervals of a predetermined interval or more. As shown in C, the read instruction signal RD is supplied to the card memory 18, taking a low level based on the trailing edge of the timing pulse signal REO and continuing this state for a predetermined period W.

As a result, the successive instruction signal RD takes a low level IIJ
Image signals MO corresponding to the (2) line image are sequentially read out from the address position designated by the address designation signal ADS at that time in the card memory 18 between I and I, respectively, as shown in Figure 3.

Further, from the recording unit drive signal generation unit 38, for example, a third
A clock pulse signal CP having a predetermined number of pulses obtained based on the timing pulse signal RE as shown in FIG.
A latch pulse signal LT having its leading edge at the time of the trailing edge of the last one of P, and a print pulse of a predetermined width having its leading edge at the time of the trailing edge of the latch pulse signal LTO, as shown in FIG. The signal PT is sent, the clock pulse signal CP is sent to the line memory 32 of the thermal recording section 17, the latch pulse signal LT is sent to the line memories 32 and 33, and the print pulse signal PT is sent to the line memory 33 and head drive section 34. supplied respectively.

As a result, in the thermal recording section 17, first, the image signal MO corresponding to the first one line image from the image signal sending section 31 is sequentially fetched into the line memory 32 in accordance with the clock pulse signal CP, and then the latch It is moved to the line memory 33 and launched by the pulse signal LT. Then, according to the print pulse signal PT,
The image signal MO latched in the line memory 33 is supplied to the head drive unit 34, and the head drive unit 34 drives the thermal head 35 based on the image signal MO to record a line image on the recording paper 21.

The recording of the line image on the recording paper 21 in this manner is completed within the period of the pulse width of the print pulse signal PT. Then, the timing pulse signal RE from the rotary encoder 20, which arrives after the trailing edge of the print pulse signal PTO, is supplied to the recording section drive signal generation section 38 via the switch 37, and is supplied to the image signal sending section 3.
Image signal MO corresponding to the next 1 run image from 1
is temporarily taken into the line memory 32 in response to the clock pulse signal CP, and the above-described operation is performed again to record the next line image on the recording paper 21.

The image signal M in such an image signal sending section 31
When the image recording operation in the thermal recording section 17 is performed in synchronization with the sending operation of O, the switch control section 39 outputs the timing pulse signal RE from the rotary encoder 20 and the print pulse signal PT from the recording section drive signal generation section 38. Thereupon, a switch control signal C3, as shown in FIG. , the switch 37 is kept off during the period when the switch control signal C8 is at a low level, and the switch 37 is kept on during the other periods. Therefore, the timing pulse signal RE from the low reencoder 20 is turned on to the switch 37.
During the period up to the trailing edge of the print pulse signal PT after the print pulse signal PT is supplied to the memory control signal generator 30 and the recording unit drive signal generator 38 through Even if the timing pulse signal RE is sent from the memory control signal generator 20, the timing pulse signal RE is not supplied to the memory control signal generator 30 and the recording unit drive signal generator 38.

The recording operation in the thermal recording section 17 as described above is performed on the card memory 18 in the image signal sending section 31.
This is repeated until the reading of the image signal MO from the card memory 18 is completed, and as a result, an image based on the image signal MO stored in the card memory 18 is recorded on the recording paper 21.

G-4 Configuration of Second Embodiment (FIGS. 4 and 5) FIGS. 4 and 5 show another example of the portable printing apparatus according to the present invention. In this example, an image recording operation mode in which an image is recorded on recording paper, and an image reading operation mode in which an image is read from the surface of a document are possible. This example also has a case 10, and a back surface 1 of the case 10 is provided on the bottom surface 10A of the case 10.
An opening 11 for the recording section is provided on the 0D side, and an image reading window 41 is provided on the front side 10C of the housing 10. Further, an opening 11 for the recording section and the image reading window 41 are provided at a position sandwiching the opening 11 for the recording section and the image reading window 41. A pair of roller openings 12a and 12b are provided. In addition, the top plate portion 10 of the box body 10
B is provided with a mode selection switch 42 for selecting between an image recording operation mode and an image reading operation mode.

A pair of running rollers 14A and 14B are rotated on the bottom 10A side of the casing 10, with respective portions protruding from the bottom 10A of the casing 10 through the roller openings 12a and 12b. They are arranged freely. These running rollers 14A and 14B have their shafts supported by bearing members 16a and 16b fixed within the case 10, respectively. At a position sandwiched between the running rollers 14A and 14B, a thermal recording section 17 forming an image recording section is placed along the back surface 10D of the casing 10.
Further, the lower end portion 17a is arranged so as to protrude from the recording section opening 11 to the outside of the bottom surface portion 10A of the casing 10. This thermal recording section 17 is similar to that shown in FIG. to perform thermal recording.

Moreover, running rollers 14A and 14B in the case 10
A selfoc lens section 43 is disposed above the image reading window 41 formed on the bottom surface section 10A, and further above it is a CCD line image sensor 44 forming an image reading section. is installed. A light source 45 is also arranged above the image reading window 41, and the CCD line image sensor 44 receives light rA4.
5, the light from the image facing the image reading window 41 is transmitted to the SELFOC lens section 43.
The image is sequentially read as a line image, and image signals corresponding to the read line image are sequentially generated.

Further, inside the case 10, an image signal transmitter including a memory for storing image signals obtained from the CCD line image sensor 44 and a control block 46 containing a control circuit are installed. This control block 4
6 is fixed to the inner surfaces of the top plate part 10B and side part 10E of the case 10, and mechanically, the bearing members 16a and 1
6b.

Thermal recording section 17, SELFOC lens section 43 and CC
It plays a role of supporting the D-line image sensor 44 and the like.

The image signal sending section built in the control block 46 is
Image signals corresponding to line images sequentially obtained from the CCD line image sensor 44 are stored in a memory, and then the images and signals stored in the memory are stored in the memory, for example.
The data corresponding to one line image is sequentially read out and sent to the thermal recording section 17 forming an image recording section. Similarly, the control circuit section built in the control block 46 includes an image signal sending section, a thermal recording section 17. Mode selection switch 42. A rotary encoder 20 provided in relation to the CCD line image sensor 44 and the traveling roller 14A.
Based on the timing pulse signal obtained from the rotary encoder 20, the CCD line image sensor 44 obtains an image signal and sends out the image signal. an operation of storing image signals from the CCD line image sensor 44 in the memory of the section; an operation of sequentially sending image signals corresponding to the line image from the memory in which image signals from the CCD line image sensor 44 are stored to the thermal recording section 17; The operation of recording an image on the recording paper 21 is controlled according to the image signal from the image signal sending section.

The rotary encoder 20 is similar to the one shown in FIG. 1 described above, and provides a timing pulse signal corresponding to the rotation of the running roller 14A.

G-5 Image reading/recording operation (Fig. 4).

FIG. 5) Another example of the portable printing device according to the present invention having the above-mentioned configuration is used to read an image on the surface of a document and then record the read image on recording paper. In this case, first, the mode selection switch 42 is operated to enter the image reading operation mode. Then, the image reading window 41 provided on the bottom surface 10A of the case 10 is made to face the document surface 47, Running roller 14
The portions of A and 14B that protrude from the roller openings 12a and 12b to the outside of the bottom surface 10A of the case 10 are the document surface 4.
7, the case 10 is moved over the document surface 47. As a result, the traveling rollers 14A and 14B rotate while in contact with the document surface 47.

At this time, the disk 20a of the rotary encoder 20 rotates as the traveling roller 14A rotates, and a timing pulse signal corresponding to the moving speed of the case 10 on the document surface 47 is obtained from the rotary encoder 20. The signal is supplied to a control circuit built in the control block 46. Then, the control circuit section controls the operation of the CCD line image sensor 44 and the image signal sending section built in the control block 46 based on the timing pulse signal from the low-resolution encoder 20.

When the case 10 is moved on the document surface 47 in this way, the image reading window 41 is illuminated by the light source 45.
The image on the document surface 47 that appears inside the image is read into the CCD line image sensor 44 via the SELFOC lens section 43. and control block 46
Rotary encoder 20 with built-in control circuit
After the operation is controlled based on the timing pulse signal from the CCD line image sensor 44, image signals corresponding to the line images read therein are sequentially sent to the image signal sending section. In the image signal sending section, after the control circuit section controls the operation based on the timing pulse signal from the row encoder 20, an image signal corresponding to each line image sequentially supplied from the CCD line image sensor 44 is sent. are sequentially captured and stored in memory.

Next, the mode selection switch 42 is operated and the image '
The recording operation mode is set, and the end surface of the lower end 17a of the heat-sensitive recording section 17 protruding from the recording section opening 11 to the outside of the bottom surface 10A of the case 10 is brought into contact with the surface of the recording paper 21, and the running roller The housing 10 is moved on the surface of the recording paper 21 with the portions of the roller openings 12a and 14B protruding from the bottom surface 10A of the housing 10 brought into contact with the surface of the recording paper 21.

As a result, the running rollers 14A and 14B move toward the recording paper 21.
rotates while in contact with the surface of

At this time, a timing pulse signal obtained from the row encoder 20 as the traveling roller 14A rotates is supplied to a control circuit built in the control block 46.

And the system? 'J11 circuit section is low reencoder 2
Based on the timing pulse signal from 0, the operation of the image signal sending section and the thermal recording section 17 provided in the control block 46 is controlled.

After the control circuit section built in the control block 46 controls the operation based on the timing pulse signal from the rotary encoder 20, the image signal from the CCD line image sensor 44 is accumulated in the image signal sending section. Image signals corresponding to one line image are sequentially read from the memory, and the read image signals are sequentially sent to the thermal recording section 17. In the thermal recording section I7, after the control circuit section controls the operation based on the timing pulse signal from the low reencoder 20, the image signal corresponding to one line image is sequentially supplied from the image signal sending section. In response, the thermal heads disposed within the lower end portions 1 and 7a are activated, and line images are sequentially recorded on the recording paper 21 by thermal recording.

In this way, under the image reading operation mode,
As the casing 10 moves on the document surface 47, an image signal representing an image of the portion of the document surface 47 through which the image reading window 41 has passed is accumulated in the memory of the image signal sending section, and an image recording operation is performed. In this mode, as the housing 10 moves on the recording paper 21,
An image based on the image signal read out from the memory of the image signal sending section is recorded on the portion of the recording paper 21 through which the lower end 17a of the thermal recording section 17 has passed.

G-6 Configuration and operation of circuit system in second embodiment (FIGS. 6 and 7) The thermal recording section 17 performs operations for reading and recording images as described above. CCD line image sensor 44
．． The configuration of the circuit system in the portion including the control block 46 containing the image signal sending section and the control circuit section, and the low reencoder 20 is, for example, as shown in FIG. In this example, a memory 50 and a memory control 1ffff that generates control signals for writing and reading image signals with respect to the memory 50 are used.
An image signal sending section 52 having a signal generating section 51 is provided, and a thermal recording section 17 is similar to that shown in FIG. The image signal from the

A control block 46 is provided at the output end of the low-resolution encoder 20.
A built-in control circuit section 36 is connected to the control circuit section 36, and in the control circuit section 36, a timing pulse signal from the low reencoder 20 is supplied to a mode selection switch 42 through a switch 37. The mode selection switch 42 has its movable contact connected to the selection contact R when the image reading operation mode is selected, and its movable contact connected to the selection contact P when the image recording operation mode is selected. What is done and what is done. The selection contact R is connected to the sensor drive signal generation section 53, and is also connected to the memory control n signal generation section 51 of the image signal transmission section 52 via the OR circuit 54, and the selection contact P is
The recording section drive signal generating section 38 is connected to the memory control signal generating section 51 of the image signal transmitting section 52 via an OR circuit 54 . Further, a timing pulse signal from the low reencoder 20 is supplied, and an output signal from the memory control signal generation section 51 or an output signal from the recording section drive signal generation section 38 is supplied via an OR circuit 55. A switch control section 38 is provided to control the switch 37 based on the following.

The sensor drive signal generation section 53 supplies various control signals to the CCD line image sensor 44, and the recording section drive signal generation section 38 is similar to that shown in FIG. 2 described above.

Based on this configuration, the movable contact of the mode selection switch 42 is connected to the selection contact R when the image reading operation mode is operated.

Then, a timing pulse signal REW corresponding to the hyperactivity speed on the original surface 47 of the case 10 as shown in FIG. The signal is supplied to the sensor drive signal generation section 53 via the switch 42, and is also supplied to the memory control signal generation section 51 via the OR circuit 54.

For example, as shown in FIG. 7B, the sensor drive signal generator 53 to which the timing pulse signal REW is supplied generates the timing pulse signal under a condition in which the timing pulse signal REW arrives at a predetermined interval or more. Shift pulse signal SH having a leading edge at the time of the trailing edge of REW, FIG. 7C
and two-phase transfer lock pulse signals CLI and CF2 having a predetermined number of pulses generated from the trailing edge of the shift pulse signal SH, as shown in FIG. Transfer lock pulse signals CLI and C
A cent pulse signal R3 generated within each pulse width of F2 is sent out and supplied to the CCD line image sensor 44. As a result, the CCD line image sensor 4
4, the charge accumulated in the light receiving section according to the line image read from the document surface 47 is read out to the transfer section by the shift pulse signal SH, and the charge read out to the transfer section is transferred to the lock pulse. It is transferred to the output by signals CL1 and CF2. In this example, the transfer lock pulse signal CLI is applied to the final stage of the transfer section, and the subsequent reset pulse R5 is applied at the output section from the time point 11 fJ& of the transfer lock pulse signal CLI. Output signals are sequentially taken out during the period up to the leading edge of . As a result, an image signal OI corresponding to the read line image is obtained from the output section as shown in FIG. 7F. The image signal Of corresponding to one line image is obtained each time the timing pulse signal REW arrives under the condition that the timing pulse signal REW arrives at a predetermined interval or more. 52 memories 50 in sequence.

On the other hand, at this time, as shown in FIG. 7G, from the memory control signal generator 51 to which the timing pulse signal REW is supplied, the timing pulse signal REW arrives at a predetermined interval or more. In response to each timing pulse signal REW, an addressing signal ADS is provided to the memory 50, and further, as shown in FIG. and maintain that state for a predetermined period of 41!
The following write instruction signal W is supplied to the memory 50. As a result, during each period in which the write instruction signal W is at a low level, an image corresponding to one line from the CCD line image sensor 44 is sent to the address at that time in the memory 50 and the address position specified by the designation signal ADS. image signals OI are sequentially written.

In this way, when the image signal 0■ is written and stored in the memory 50 in the image signal sending section 52, the switch control section 39 controls the rotary encoder 20.
In response to the timing pulse signal REW from the memory control signal generator 51 and the write instruction signal W supplied from the memory control signal generator 51 via the OR circuit 55, a subsequent write instruction signal is generated from the trailing edge of the timing pulse signal REW. The switch control signal C8W as shown in FIG.
During the period when the switch control signal C8W is at a low level, the switch 37 is kept off, and during the other periods, the switch 37 is kept on. Therefore, after the timing pulse signal REW from the row reencoder 2o is supplied to the sensor drive signal generation section 53 through the switch 37 which is turned on, and further to the memory control signal generation section 5I via the OR circuit 54, During the period from the low level to the high level of the write instruction signal W in , even if the switch 37 is turned off and the timing pulse signal REW is sent from the low read encoder 20 during that period, such The timing pulse signal REW is not supplied to the sensor drive signal generation section 53 and the memory control signal generation section 51.

Writing of the image signal OI into the memory 50 is carried out by moving the casing 10 on the original surface 47.
continues while the image is being read from.

Thereafter, when the image recording mode operation is performed, the movable contact of the mode selection switch 42 is connected to the selection contact P. Then, a timing pulse signal RER corresponding to the moving speed of the housing 10 on the surface of the recording paper 21 as shown in FIG. The signal is supplied to the memory control signal generator 51 through the switch 42 and further through the OR circuit 54.
The signal is directly supplied from the mode selection switch 42 to the recording section drive signal generation section 38.

For example, as shown in FIG. 7K, the memory control signal generating section 51 to which the timing pulse signal RER is supplied generates each timing pulse in a state where the timing pulse signal RER arrives at a predetermined interval or more. An addressing signal ADS is provided to the memory 50 in response to the signal RER and further takes a low level and maintains its state with respect to the trailing edge of the timing pulse signal RER, as shown in FIG. A continuation instruction signal -RD- which lasts for a predetermined period of time mtt is supplied to the memory 50. As a result, the memory 5
From the address position designated by the address designation signal ADS at that time in 0, the image signal MO corresponding to one line image is read out as shown in FIG. be done.

At this time, the recording section drive signal generating section 38 generates a clock pulse signal CP having a predetermined number of pulses obtained based on the timing pulse signal RER, as shown in FIG. 7N, for example. A latch pulse signal LT having a leading edge at the time of the trailing edge of the last one of the clock pulse signals CP, as shown in FIG. A print pulse signal PT of a predetermined width having a leading edge is sent,
The clock pulse signal CP is supplied to the line memory 32 of the thermal recording section 17, the latch pulse signal LT is supplied to the line memories 32 and 33, and the print pulse signal PT is supplied to the line memory 33 and the head drive section 34, respectively.

As a result, in the thermal recording section 17, first, the image signal MO corresponding to the first one line image from the memory 50 is sequentially fetched into the line memory 32 in accordance with the clock pulse signal CP, and then the launch pulse signal L
T is transferred to the line memory 33 and latched. Then, in response to the print pulse signal PT, the image signal MO latched in the line memory 33 is transmitted to the head drive unit 3.
4, the thermal head 35 is driven by the head drive unit 34 based on the image signal MO, and a line image is recorded on the recording paper 21.

The recording of the line image on the recording paper 21 in this manner is completed within the period of the pulse width of the print pulse signal PT. Then, the timing pulse signal RER from the row reencoder 20, which arrives after the trailing edge of the print pulse signal PTO, is supplied to the recording section drive signal generation section 38 via the switch 37, and the image signal sending section 5
Image signal MO corresponding to the next 1 run image from 2
are sequentially fetched into the line memory 32 in response to the clock pulse signal CP, the above-described operation is performed again, and the next line image is recorded on the recording paper 21.

Thermal recording section 1 synchronizes with the operation of transmitting the image signal MO from the memory 50 in the image signal transmitting section 52.
When performing the image recording operation in step 7, the switch control section 39 outputs the timing pulse signal RER from the low reencoder 20 and the print pulse signal PT supplied from the recording section drive signal generation section 38 via the OR circuit 55. In response, supplying the switch 37 with a switch control signal C3R as shown in FIG. During the period when the switch control signal C3R is at a low level, the switch 37
is kept off, and the switch 37 is kept on during the rest of the period. Therefore, the trailing edge of the print pulse signal PT after the timing pulse signal RER from the row reencoder 20 is supplied to the memory control signal generation section 51 and the recording section drive signal generation section 38 through the turned-on switch 37. In the period up to the point in time, switch 3
7 is in the off state, during which the low reencoder 20
Even if the timing pulse signal RER is sent from the memory control signal generating section 51 and the recording section driving signal generating section 38, the timing pulse signal RER is not supplied to the memory control signal generating section 51 and the recording section drive signal generating section 38.

The recording operation in the thermal recording section 17 as described above is repeated until the image signal sending section 52 finishes reading out the image signal MO from the memory 50, and as a result, the image signal MO is stored on the recording paper 21 in the memory 50. An image based on the image signal is recorded.

G-7 Modification In the example shown in FIG. 1 described above, control block 1
The image signal sending unit 31 provided in the heat-sensitive recording unit 17 is configured to have a card memory 18 attached thereto, and reads out image signals from the attached card memory 18 and outputs the image signals to the thermal recording unit 17.
However, the image signal sending section 31 in the example shown in FIG. It may be a device that sends the image signal to the recording section 17, or a device that receives an image signal from the outside and sends the image signal to the thermal recording section 17.

Further, in any of the above examples, the image recording section for recording an image on the recording paper 21 is formed by the thermal recording section 17, but the image recording section in the portable printing device according to the present invention is formed by the thermal recording section. For example, inkjet recording means or dot recording means may be used instead of the thermal recording section.

H Effects of the Invention As is clear from the above explanation, in the portable printing device according to the present invention, for example, by being manually moved on the recording paper surface, a built-in or
An image is recorded on the recording paper based on an image signal read from the attached memory or an image signal supplied from the outside. When the image is moved over the surface of the recording paper, the running roller rotates in contact with the surface of the recording paper or the surface on which the recording paper is placed, and the image is Recording is performed on the portion of the recording paper where the device has moved at a timing that corresponds to the moving speed of the device on the recording paper.

Therefore, according to the portable printing device according to the present invention, a desired image can be reliably and at any position on any recording paper surface by a simple operation of moving the entire device on the recording paper surface with one hand, for example. , can be recorded clearly.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view showing an example of a portable printing device according to the present invention, FIG. 2 is a block diagram showing an example of a circuit system in the example shown in FIG. 1, and FIG. 4 and 5 are a partially cutaway perspective view and a sectional view taken along the line V-V showing another example of the portable printing device according to the present invention, FIG. 6 is a block diagram showing an example of the circuit system in the example shown in FIGS. 4 and 5, and FIG. 7 is a waveform diagram used to explain the operation of the circuit system shown in FIG. 6. In the figure, 10 is a case, 14A and 14B are running rollers, 1
7 is a thermosensitive recording section, 19 and 46 are control blocks, 20 is a rotary encoder, 31 and 52 are image signal sending sections, 36 is a control circuit section, and 44 is a COD line image sensor. Figure 1: Configuration of the first embodiment

Claims (1)

[Scope of Claims] An image signal sending section that sends out an image signal read out from a memory or an image signal supplied from the outside, and an image signal sending section that is brought into contact with a recording paper so as to transmit an image signal from the image signal reading section to the recording paper. An image recording unit that records an image based on the image signal sent out; a running roller that is rotated in contact with a recording paper surface or a surface on which the recording paper is placed; and a timing signal that is obtained in accordance with the rotation of the running roller and A portable printing device comprising: operation control means for controlling sending of an image signal in the image signal sending section and recording of an image on recording paper in the image recording section based on a timing signal.