JPH01123382A - Reader/recorder - Google Patents

Abstract

PURPOSE:To erase image information at an arbitrary position on a recorded sheet with an easy operation by indicating a part desired to be erased on displayed image information and erasing the image information of an indicated sheet at the downstream side of a read sensor. CONSTITUTION:A read sensor part is arranged at the upstream of a recording position on a carrying path, and inputs the image information on the sheet by reading photoelectrically. Inputted image information is displayed on a display means, and the part desired to be erased is indicated by an indication means. And an operation to erase the image information on the sheet indicated by the indication means at the downstream side of the read sensor part is performed. In such a way, it is possible to erase the arbitrary position of an original easily.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a reading/recording device capable of recording on a recording sheet and reading a sheet original. This relates to a reading/recording device that can erase that part by giving an instruction.

[Prior Art] Conventionally, the collection function used in English typewriters and the like is used when characters are input by mistake. This method involves returning the carriage to the erroneously input printing position, printing the character through an erasing ribbon, and peeling off the erroneous character. In addition, in recent years, thermal transfer printers have been developed that print by thermal transfer using a thermal head and can erase the printed characters and the like with an erasing ribbon.

[Problems to be Solved by the Invention] However, all of these methods are performed when inputting characters, and for example, after removing printed paper from a printer or typewriter, etc. In such cases, even if the paper was set in the typewriter again, accurate positioning was difficult and accurate erasing was not possible.

The present invention has been made in view of the above-mentioned conventional example, and is a reading device that can easily erase any position on the original by reading and displaying the recorded original and instructing the erasing position of the original on the display screen. The purpose is to provide a recording device.

[Means for Solving the Problems] In order to achieve the above object, the reading/recording device of the present invention has the following configuration. That is, a recording unit that conveys the sheet to a recording position through a conveyance path and records it; a reading sensor section that is disposed upstream of the recording position on the conveyance path and that photoelectrically reads and inputs image information of the sheet; a display means for displaying image information input from the reading sensor section; an instruction means for instructing a portion of the displayed image information to be erased; and a sheet instructed by the instruction means on the downstream side of the reading sensor section. and erasing means for erasing the image information.

[Operation] In the above configuration, the reading sensor section is disposed upstream of the recording position on the conveyance path, and photoelectrically reads and inputs the image information of the sheet. This inputted image information is displayed on the display means, and the instruction means indicates a portion of the displayed image information to be erased. Then, the image information of the sheet instructed by the instruction means is operated to be erased on the downstream side of the reading sensor section.

[Embodiments] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[General description of reader printer (FIG. 1)] FIG. 1 is a functional block diagram showing a schematic functional configuration of a reader printer with an erasing function according to an embodiment.

In the figure, 140 is a control unit that controls the entire device, such as a CPU such as a microprocessor, and a ROM% that stores the CPU control program and various data shown in the flowchart of FIG. It is also equipped with a RAM, etc., which is used to temporarily store various data. This RAM includes an erase position pointer (ERPT) that indicates the actual erase position, which will be described later, and an input pointer (INPT) that indicates the erase position that is input from the touch panel 143 or the input unit 145.

Reference numeral 141 denotes an image buffer that stores image data to be displayed on the display unit 142, which can store image data for at least one page of a sheet document, and when the reading resolution of the reading unit 144 and the display resolution of the display unit 142 are equal, the read data is stored. is stored as is, and when the reading resolution of the reading unit 144 is higher, the read data is reduced and stored and displayed on the display unit 142.

Reference numeral 142 denotes a display unit such as a CRT or liquid crystal display, which displays various data using dot images.The display screen is configured as a touch panel 143, and by pressing the display surface with a finger, the position can be changed. Coordinate values can be input to the control unit 140. Input section 1
45 is an input unit such as a keyboard, and a recording unit 146
It is used to input document information to be printed and various commands for instructing the operation of the device. 149 is a character pattern generator that generates a character pattern based on code information input from the input unit 145; 150 is a recording unit 146;
This is a print buffer that stores print data to be output to.

Reference numeral 146 denotes a recording unit that transports, reads, and prints recording paper, and the configuration of the recording unit 146 will be described below.

Reference numeral 101 denotes a thermal head mounted on a carriage 200 for sequential recording, and the carriage 200 is equipped with an ink ribbon 148 for thermal transfer recording, an ink ribbon 147 for erasing, a carriage motor 102 for moving the carriage 200, and the like.

Reference numeral 144 denotes a reading unit that photoelectrically reads a document, and is provided as a contact sensor, which will be described later, on the conveyance path of a sheet such as a recording paper or a read document.The lamp of the reading unit 144 is turned on in response to an instruction from the control unit 140. Read Senna (111
) reads the original, converts it into a digital signal, and sends it to the control section 140.

With the above configuration, the sheet can be fed to the recording position and thermal transfer recording can be performed, and the original to be read can be conveyed to the reading position and read in the same way as recording paper. Further, the image of the recording paper read by the reading unit 144 is displayed on the display unit 142, the position of characters in the image is instructed from the touch panel 143, etc., and the erasure of the characters, etc. is instructed from the input unit 145. Then, the characters on the document can be erased using the erasing ink ribbon 147.

[Explanation of External Appearance of Apparatus (FIG. 2)] FIG. 2 is an external perspective view of a soda printer that also functions as a facsimile machine and a personal computer (including a word processor) according to an embodiment.

In the figure, 320 is a CRT screen which is a display unit 142, which displays input document information, an image of a sheet read by the reading unit 144, etc., and also functions as a touch panel to input coordinates and item designation from the screen. etc. can be done. 321 is a handset used when the device functions as a telephone.

A keyboard 322 operates as an input unit 145, and is removably connected to the main body via a cord, and allows input of various document information and function instructions such as erasure commands. Further, on the keyboard 322, there are provided a joystick, cursor keys, etc. for inputting coordinates. 323
is an insertion slot into which a microfloppy disk for storing document information, etc. is inserted.

As shown in the figure, the sheets 207 stacked on the stacker 204 are transferred into the main body, and after being read by the reading unit 144 or recorded or erased/corrected by the thermal head 101, they are ejected from the top of the apparatus as shown in the figure. Ru.

[Explanation of the cross section of the mechanism (Fig. 3)] FIG. 3 is a structural sectional view of the reader printer of the embodiment.

In the figure, 204 is a sheet 20 of recording paper or a read original.
7, 205 and 206 are stackers 20
This paper guide is set by the operator in accordance with the width of the sheets 207 stacked on the paper sheet 4. Stacker 204
When the pickup roller 308 is at the dotted line position 308' in the figure, the sheet 207 is
8 onto the conveyance path, the sheets are separated one by one by the interaction between the separation roller 309 and the separation plate 407, and are transferred on the conveyance path to the platen 300 side.

When the sheet 207 is conveyed to the position where it is sandwiched between the platen 300 and the pinch roller 401, the pickup roller 308 moves up to the position shown by the solid line and transfers the next sheet 207 from the stacker 204. prohibited. A paper sensor 403 is provided on the conveyance path downstream of the pickup roller 308 and detects the presence or absence of a sheet in the stacker 204. A paper sensor 404 is provided on the conveyance path downstream of the separation roller 309 to detect the sheet 2 from the separation roller 309.
This is a paper sensor that detects the transfer of 07.

The sheet 207 sandwiched between the platen 300 and the pinch roller 401 is guided by a contact sensor 105 equipped with a reading sensor 111 and is transported in the direction of the recording position by the thermal head 101, or when reading the sheet, the sheet 207 is It is stopped at the position read by the bending sensor 111. In this way, the sheet 207 that has passed through the separation roller 309 is sandwiched between the platen 300, the pinch roller 401, etc., and is transported by their rotation. When recording, erasing, and reading are completed, the sheet 207 is discharged upward from the top of the apparatus by the discharge roller 230. Ru.

201 is an ink ribbon cassette that is detachably mounted on the carriage 200, and a normal printing ink ribbon 148
and an erasing ribbon 147 are attached replaceably. The carriage 200 is moved substantially parallel to the flat platen in a direction perpendicular to the drawing by a carriage motor 102 mounted on the carriage 200, and recording and erasing are sequentially performed by a thermal head 101 using a thermal transfer method. 221 is a ribbon sensor that detects the presence or absence of an ink ribbon, and 220 is a sensor that detects that the carriage 200 has reached the home position.

[Description of the entire mechanism section (Figures 4 and 5) Figure 4 is a perspective view of the mechanism section of the reader printer of the embodiment with the front cover removed, and Figure 5 further shows the carriage section and upper frame. It is a perspective view of the mechanism section removed, with a part cut away for explanation.

Note that common parts in each drawing are indicated by the same symbols.

In FIG. 4, 201 is a ribbon cassette that stores the ink ribbon 148 and erasing ribbon 147, and 200 is a carriage. The carriage 200 is moved along the shaft 202 by the carriage motor 102 to the flat platen 2.
03 in the direction of arrow A. Reference numeral 203 denotes a flat platen made of a flexible material such as rubber, which is provided at a position facing the thermal head 101 mounted on the carriage 200. The ink ribbon and the flat platen are rotated counterclockwise by the paper feed motor 103. 203 is pressed by the thermal head 101, and as the carriage 200 moves, it is serially transferred and recorded by the ink ribbon 148 or erased by the erasing ribbon 147.

204 is a sheet 20 of a plurality of recording papers or original documents to be read;
This is a stacker that can load and store 7 items. Stacker 20
4 are provided with slidable paper guides 205 and 206, the positions of which are adjusted by the operator according to the size of the sheet 207. The positions of these paper guides are detected by a sensor (not shown), and the controller 140 controls the stacker 204 based on a signal from this sensor.
The size of the sheets stored in the can be detected. Therefore, for example, when the length of the reading sensor 111 in the horizontal direction is the horizontal size of A4 size, if the width of the document is A4 size or more, it will not be possible to read or feed the document (if the sheet document is at the contact sensor 105). It is possible to prohibit the conveyance of the sheet by determining that there is a risk of the sheet being caught.

A gear 208 is attached to the motor shaft of the paper feed motor 103, and when the gear 208 rotates counterclockwise, this rotation is transmitted from the gear 209 to the gear 210, which will be described later. The sheet is fed by driving the feeding roller (pinch roller).

These movements will be explained in more detail using FIG.

In FIG. 5, the rotation of the paper feed motor 103 is transmitted to the gear 210 attached to the shaft 314 of the platen 300, thereby rotating the platen (main roller) 300 in the direction of the arrow. On the other hand, cams 302 and 303 are supported on a shaft 314 of the platen 300.
02 and 303 are rotated by a pickup motor (not shown) regardless of the movement of the platen 300. The cams 302 and 303 are integrally formed with the gear 301, and when the rotation of the pickup motor is transmitted to the gear 301, the cams 302 and 303 are rotated in conjunction with each other.

The cam 303 is a cam follower 305 of the contact sensor 105 equipped with the reading sensor 111 and the lamp 110.
The contact sensor 105 can be moved up or down depending on the rotational position of the cam 302.

Similarly, the cam 302 engages with the cam follower of the lever 307 to rotate the lever 307 about the shaft 306 to move the pickup roller 308 up and down.

A lamp 110 and a reading sensor 111 are attached to the contact sensor 105, and as described above, it is configured to be able to come into contact with (down) or separate from (up) the platen 300. When reading a document and in the standby state, the contact sensor 105 is in a down state, and during reading, the light emitted from the lamp 110 is reflected on the surface of the document, and this reflected light is input to the reading sensor 111 and converted into an electrical signal. . When transporting a sheet without reading a document, the reading sensor 111 is in an up state and serves as a guide for transporting the sheet to a recording position. Note that this contact sensor 105 is moved down as a temporary sheet guide even when printing by the thermal head 101, for example, in order to ensure the feeding of postcards and the like. ``A separation roller 3 is attached to the shaft 306 of the lever 307.
09 is attached and the pickup roller 308 is in the down state (in the state of being pressed against the sheet), the rotation of the paper feed motor 103 is transmitted to the shaft 306 through the gears 208 and 211, and the roller 309 moves in the direction of arrow B. Rotate. The rotation of this separation roller 309 is controlled by the belt 313.
This is transmitted to the pickup roller 308 and feeds the sheets stored in the stacker 204.

When the pickup roller 308 is up (separated from the sheet), the shaft 306 is disconnected from the gear 211 and the rotation of the paper feed motor 103 is no longer transmitted, and the shaft 306 and the separation roller 309 are free to rotate.

In this way, when feeding the sheet 207 from the stacker 204, the paper sensors 403 and 404 are used to feed the sheet 207.
07 is confirmed, and then platen (main roller) 3
When the sheet 207 is pinched and transferred between the pinch roller 401 and the pick-up motor, the pick-up roller 30 is moved as shown by the solid line in FIG.
Up 8.

In this way, from now on, the sheet 207 is placed on the platen 300.
is transferred by the pinch roller 401 and other pinch rollers, and the reading sensor 111 reads one page of the document, or the thermal serial head 101 reads one page of the document.
After recording or erasing one page, the next sheet 207
When the transfer is performed, the pickup roller 30
8 is down (position indicated by the dotted line in Figure 3), and the stacker 20
4, the sheet 207 is transferred into the apparatus.

[Operation Description (Figs. 6 and 7)] Fig. 6 is a flowchart showing an erasing operation for reading a document and erasing a designated portion in the reader printer of the embodiment.The program that performs this operation is executed by the control unit. 140 R
Stored in OM.

Before starting this operation, the contact sensor 105 is down and the pickup roller 308 is up, which is the state shown by the solid line in FIG. 3. This program is keyboard 32
2, the process starts when an erase operation instruction is input.

First, in step S1, it is determined whether paper is set in the stacker 204 based on whether the paper sensor 403 is on or not. If it is not on, the process proceeds to step S2 and a paper out error is determined. If the paper sensor 403 is on, the process advances to step S3, and the cam 302 is activated by the pickup motor.
．． 303 in the counterclockwise direction, the pickup roller 308 is brought down, and the contact sensor 105 is moved away from the platen 300. In step S4, the paper feed motor 103 is rotated counterclockwise to start feeding the paper stored in the stacker 204.

Next, in step S5, it is checked whether the paper sensor 404 is turned on. If the paper sensor 404 does not turn on after a predetermined period of time in step S6, error handling such as a paper jam is performed.

When the paper sensor 404 is turned on in step S5, the process advances to step S7, and the paper is fed by an amount sufficient for the paper 207 to be wound around the platen 300 and the pinch roller 401. This is accomplished, for example, by rotating the motor 103 approximately 328 steps when the paper feed motor 103 is a stepping motor. The paper 207 is sent between the platen 300 and the pinch roller 4.degree. 1, and when the paper 207 is transferred by the platen 300 and the pinch roller 401, the process advances to step S8, and the pickup roller 308 is raised. As a result, feeding of the next sheet from the stacker 204 is prohibited.

In step S9, the sensor 1 reads the leading edge of the paper 207.
Contact sensor 105 is transported to the reading position of 11.
is lowered, and the reading sensor 111 reads the paper 207. Then, the read image data is sequentially stored in the image buffer 141 and displayed on the display section 142. In step SIO, it is determined whether the leading edge of the paper 207 has been transported to the erasing position by the thermal head 101 (judging by the number of feeding steps of the paper feed motor 103); if the leading edge of the paper 207 has not reached the erasing position, the process returns to step S9, and In addition to sending the paper, it also reads and displays the paper. When the leading edge of the paper reaches the erasing position, the process advances to step S11, and feeding of the paper is stopped.

FIG. 7 is a diagram showing a state in which the paper 70 has been read and the leading edge of the paper 70 has reached the erase position, and FIG. 7(A) shows the paper 7o being read. FIG. 7(B) is a diagram showing the display state of the CRT screen 320 when the reading up to position 71 on the paper 70 has been completed and the erasing position has come to the beginning of the paper 70. In the figure, 72 is a display frame indicating the size of the paper 70, and 73 is a thermal head 101 and an erasing ribbon 147.
This is a cursor indicating the next line to be erased, and is pointed to by pointer ERPT. This ERPT is updated every time one row is erased. Reference numeral 74 denotes a cursor that indicates the erasure position, etc. indicated by the keyboard 322, touch panel 143, etc., and is indicated by the pointer INPT.

The shaded area 75 in FIG. 7(B) is the area to be erased specified by the cursor 74. By moving the cursor 74 six times from the position 74' to the position of the cursor 74, the area can be specified on the paper. 70 erased portions are designated.

When the leading edge of the paper 70 reaches the recording position, step S12
Then, as shown in FIG. 7(B), the read portion is displayed on the screen 320, and the designated input position, erase position, etc. are displayed by cursors 74 and 73, respectively. Note that the cursor 74 may be positioned from the top of the screen using the touch panel 143, or from the keyboard 322.
It may also be performed using a joystick or the like.

In step S13, it is checked whether coordinate data indicating the erasing position is input from the keyboard 322 or touch panel 143. If the coordinate data is input, the process proceeds to step S14, where the position of the cursor 74 is updated based on the coordinate data, and Update pointer INPT. Step S1
If the data is not input in step S15, it is checked whether an erase start instruction has been input. If no erasing instruction is input, the process returns to step S12 and the above-described operation is performed.

When the erasing instruction is input, the process advances to step S16, where the erasing ribbon 147 of the ribbon cassette 201 is selected, and the erasing ribbon 147 of the ribbon cassette 201 is selected and the erasing ribbon 147 is erased for one line, or for the number of lines displayed on the screen 320, or for the number of lines specified along with the erasing instruction. Perform erasing. This is done by scanning the carriage 200 parallel to the flat platen 203, as in normal thermal transfer printing.

At the time of erasing, character width, character height, line spacing, etc. are detected by reading data from the reading section sensor 111, and based on this width, height, etc., the designated erasing position and the actual paper to be erased. Determine the position. In addition, since the amount of deviation between the reading position and the erasing position is determined in advance, the paper 7
Based on the feed amount of 0, the timing at which the read portion reaches the erasing position can be determined, and the correspondence between the pointer INPT and the pointer ERPT can be established, and the characters, etc. at the designated erasing position can be erased.

In this erasing process, a pattern such as a character to be erased may be output to the thermal head 101, and erasing ink may be transferred onto the character via the erasing ribbon 147, or the character pattern may be peeled off. Alternatively, a thickened pattern of the pattern to be erased or a fill-in pattern corresponding to the size of a character may be output to the thermal head 101 and transferred or peeled off using the erasing ribbon 147.

In step S17, the portion that is sent and read as the paper is erased is displayed. As a result, the display state of FIG. 7(B) is scrolled upward, and the newly read portion is scrolled in from the bottom. In step S18, it is checked whether the rear end of the paper 70 has passed through the contact sensor 105, that is, whether reading has been completed. If it has not passed, the process returns to step S12.

When the reading is completed, the process advances to step S19, and the contact sensor 105 is raised. In step S20, it is checked whether erasure of one page has been completed, and if it has not been completed, the process returns to step S12. When the erasing process for one page is completed, the process advances to step S21, where the paper 70 is ejected and the process ends.

In this embodiment, the paper is read and erased by transferring the paper once, but the invention is not limited to this. , input the erasure position etc. from a keyboard, etc., set the paper in the printer again, feed it 8 times to the erasure position, and erase it.

Further, in this embodiment, erasing is performed by a thermal method, but the method is not limited to this. For example, by stamping on printed characters via adhesive tape and peeling off the printed characters. Of course, it may be a method.

As explained above, according to this embodiment, by reading and displaying the sheet of paper using a reading sensor and instructing the erasing position of the paper on the display screen, the erasing location can be easily specified and the paper is no longer needed. It has the effect of erasing parts, etc.

[Effects of the Invention] As described above, according to the present invention, there is an effect that image information at an arbitrary position on a recorded sheet can be erased with a simple operation.

[Brief explanation of the drawing]

Figure 1 is a functional block diagram showing the functional configuration of the reader printer with erasing function of the embodiment, Figure Fig. 4 is a perspective view of the mechanical part of the embodiment; Fig. 5 is a perspective view of the mechanical part when the carriage and upper frame are removed from Fig. 4; Fig. 6 is a perspective view of the mechanical part of the embodiment. A flowchart showing the erasing operation in the example reader printer. FIG. 7(A) is a diagram showing one example of paper. FIG. 7(B) is an example of the paper reading display and erasing position instruction in FIG. 7(A). FIG. In the figure, 70...format paper, 73.74...
Cursor, 101... Thermal head, 102...
Carriage motor, 103...Paper feed motor, 105
...Contact sensor, 111...Reading sensor,
140... Control unit, 141... Image buffer,
142...Display section, 143...Touch panel, 14
4... Reading section, 145... Input section, 146... Recording section, 147... Erasing ribbon, 14B... Ink ribbon, 200... Carriage, 201... Ink ribbon cassette, 203・・・Flat platen, 204...
・Stacker, 205.206...Paper guide, 208
~211... Gear, 220... Home position sensor, 221... Ink ribbon sensor, 300...
Platen (main roller), 301... Gear, 302, 3
03...Cam, 307...Lever, 308...Pickup roller, 309...Separation roller, 320...
・・CRT, 322 ・・Keyboard, 403, 404
...paper sensor, 405...plate spring, 407...
It is a separation plate. Figure 1

Claims (2)

[Claims] (1) a recording unit that conveys a sheet to a recording position through a conveyance path and records it; a reading sensor section that is disposed upstream of the recording position on the conveyance path and that photoelectrically reads and inputs image information of the sheet; a display means for displaying image information input from the reading sensor section; an instruction means for instructing a portion of the displayed image information to be erased; and a sheet instructed by the instruction means on the downstream side of the reading sensor section. A reading/recording device comprising: erasing means for erasing image information. (2) The erasing means includes a thermal erasing ribbon, and the image information is erased by transferring ink from the ribbon onto the image information on the sheet using a thermal head. The reading and recording device according to item 1.