JPS6332570A - Edition input device for copying machine - Google Patents

Abstract

PURPOSE:To easily form an image of a desired pattern on a copy form by converting an input coordinate signal to the corresponding pattern information. CONSTITUTION:A CPU 22 inputs a coordinate data from an editor 900 through an A/D converter 930, and signals from various keys 901-905 of the editor 900. Also, under a write mode, in order to enter a prescribed pattern into a photosensitive body in accordance with a coordinate data inputted from the editor 900, an ON/OFF table of each LED element for constituting an eraser is generated, and a synthetic copy is commanded to a CPU 621. The editor 900 is placed on an original platen, a tablet 910 has many resistance wires 911 provided in the X and Y axis directions, and a resistance value determined by X and Y coordinates of an arbitrary point on the tablet 910 is detected by a voltage level.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an editing input device for a copying machine, and more particularly to an editing input device capable of inputting arbitrary pattern information.

[Prior Art] Conventionally, editing input devices have been provided which are used in connection with copying machines.

This device has a board called a tablet, and by placing a document in a controlled manner on the tablet and pressing an arbitrary point, the coordinates of the arbitrary point can be input.

Furthermore, on the copying machine side, based on the input coordinate data,
Editing and copying such as erasing and trimming is performed.

Further, as a copying machine, a copying machine having a so-called composite copying unit is provided.

This is a unit for refeeding copy paper that has been partially copied, and is used to combine images on the same side.

[Problems to be solved by the invention] In recent years, when copying a manuscript, not only the manuscript image but also
There is a desire to also imprint a predetermined pattern such as an underline.

In such a case, for example, the desired pattern is written on a document and copied, or the desired pattern is written on a copy. However, the former method stains the original, while the latter method requires time and effort when a large number of copies are to be made.

One way to deal with this is to write the pattern on a transparent sheet, for example, and copy the sheet over the original. It tends to occur.

The present invention has been devised in view of the above circumstances, and it is an object of the present invention to provide an editing input device for a copying machine that can easily create an image of a desired pattern on copy paper.

[Means and effects for solving the problems] The present invention includes a tablet on which a document is placed, and a coordinate input means that generates a coordinate signal of the predetermined point by pressing a predetermined point on the tablet surface. , a write mode key that specifies the input of pattern information, and when the coordinate signal is input under the write mode, converts the coordinate signal into pattern information corresponding to the coordinate signal, and converts the coordinate signal into pattern information corresponding to the coordinate signal. An editing input device for a copying machine, comprising: a coordinate signal conversion unit that instructs a control unit of the copying machine to perform composite copying.

Each component will be explained below.

(1) Coordinate input means It has a tablet on which a document is placed at a specified position, detects the pressure at an arbitrary point on the tablet, and generates an electrical signal whose level etc. is determined by the position of the arbitrary point.

For example, there is a resistance conversion method, an electric conduction method, etc.

Note that the above arbitrary point may be pressed by a predetermined light pen connected to the device, or may not be pressed by a predetermined light pen connected to the device.

(2) Write mode key This is a key for setting the write mode. Note that the write mode may be turned off using a separate key such as a release key or a clear key (or it may be realized by pressing the write mode key again).

(3) Signal conversion unit converts the coordinate signal into pattern information under the write mode, and instructs the control unit of the copying machine to make a composite copy of the pattern. Based on the command, the copying machine performs composite copying of the original and the pattern. Note that under the non-write mode, the coordinate signal is generally coordinate data representing the editing copy area.

- It is optional whether the components (2) and (3) above are installed in the main body of the copying machine or in a device called an editor.

[Example 1] The present invention will be described below with reference to specific examples shown in the drawings.

In the embodiment described below, a pattern is input by pressing a write mode key 903 and then pressing a desired point on the tablet so as to draw a predetermined pattern.

The pattern is written on the photoreceptor by an inter-image eraser 4 disposed close to the photoreceptor drum 2 as shown in FIG.
This is achieved by selectively turning on and off N+11 LED lamps.

(1) Overall configuration of the copying machine; see FIG. 1 First, the overall configuration of the copying machine to which this apparatus is connected will be explained together with its copying operation.

This copying machine has a copy paper storage section 42, 43, a paper feed section, and an intermediate tray unit A in the lower section, an image forming section centered on the photosensitive drum 2 in the middle section, and an optical system 1 in the upper section. After the first copy is completed, the copy paper is sent to the intermediate tray unit A and fed again, thereby making it possible to perform composite copying or double-sided copying.

The photosensitive drum 2 is rotatable in the direction of arrow a;
Around it, a charging charger 6, a magnetic brush-type present @ device 3, a transfer charger 5a1, a separation charger 5b, a blade-type cleaning device 5, and an eraser lamp 7 are sequentially arranged.a The photosensitive drum 2 moves in the direction of arrow a. As the toner rotates, it is uniformly charged by the charger 6, receives image exposure from the optical system 1, and forms an electrostatic latent image, and this electrostatic latent image is developed into a toner image by the developing device 3.

Further, between the charging charger 6 and the developing device 3, an inter-image eraser 4, which will be described later, is arranged close to the photosensitive drum 2. In this embodiment, the inter-image eraser 4 is located closer to the charger 6 than the image exposure, but it may be located closer to the developing device 3.

The optical system 1 is capable of scanning a document in the direction of the arrow below the document table glass 16, and includes an exposure lamp 10 and a movable mirror 11.
a, 11j) 111C, an imaging lens 12, and a fixed mirror 11d. The exposure lamp 10 and the movable mirror 11a move integrally at a speed of V/m (where m: copying magnification) with respect to the circumferential speed of the photosensitive drum 2 (constant regardless of magnification or variable magnification). The movable mirrors 11b and 11C move integrally in the direction indicated by the arrow at a speed of (V/2m).

On the other hand, the copy paper storage section is an elevator-type storage section 4 on the upper level.
2 and a lower elevator type storage section 43,
The copy paper stored in each storage section 42, 43 is driven upward by the upper paper feed elevator lift-up motor 101 or the non-feed paper elevator lift-up motor 102 as the copy paper is fed. The degree of 1 increase of the copy paper is detected as the rotational speed of the motors 101 and 102 by pulse disks (not shown) connected to the motors 101 and 102, respectively, and is input to the first CPU 621, which will be described later. Further, each of the storage sections 42 and 43 can be pulled out from the main body of the small camera to the front side by means of rails 46 and 47 and four rails 48 and 48.

The copy paper in the storage section 42 is fed by the rotation of the paper feed roller 18.
Further, copy sheets in the storage section 43 are selectively moved to one side by the separating roller 2 by the rotation of the paper feed roller 19.
0.21, or 1 after being sorted by the sorting roller 22.23
The sheets are fed one by one and transported to the timing roller pair 13 by transport rollers 29.30131, 24.25.26, 32.34, and 27.28.

After the copy paper is temporarily stopped by a pair of timing rollers 13, it is sent to a transfer section in synchronization with the image formed on the photosensitive drum 2, and the toner image is transferred by discharge of the transfer charge t5a. In addition, separate charger 5
The toner image is separated from the surface of the photoreceptor drum 2 by the electric discharge shown in FIG.

A lever 41 is installed between a pair of conveyance rollers 14 and a pair of ejection rollers 15, which are provided immediately after the exit of the fixing device 9, for switching the conveyance path of the copy paper. If the copy paper is to be ejected as is, the lever 41 is set to the state shown by the dashed line in FIG. In addition, when performing composite copying or double-sided copying (described in detail below), the lever 41 is set to the state shown by the solid line, and the copy paper is passed from the pair of conveying rollers 35 to the guide plate 37 (described in detail below). It is fed into the intermediate tray unit A.

On the other hand, residual toner is removed from the photosensitive drum 2 after the transfer by a cleaning device 5, and residual charges are removed by light irradiation from an eraser lamp 7, in preparation for the next copying.

Next, the configuration of the intermediate tray unit ALf)RI8 will be explained.

Intermediate tray unit A is composed of a switching block, a transport block, a reversing block, an aligning/intermediate 1 lay block, and a refeeding block, and is an integral unit as a whole. It is supported by rails 44 and 45 and can be pulled out from the copying machine main body toward the front, that is, in a direction perpendicular to the copy paper conveyance path.

The V'Jl'J block has conveyance rollers 50, 51 and a switching lever 59. Note that the switching block may be provided not in the middle 1111-ray unit A but in the main body of the copying machine.

The conveyance block is composed of conveyance rollers 52, 53, 54, 55 and a guide plate.

The reversing block has reversing conveyance rollers 56 and 57 and a reversing guide 93, and has the function of reversing the copy paper conveyed through the conveying block and sending it onto the intermediate tray 58.

The alignment and intermediate tray block includes an intermediate tray 58, a slide rail, a slide member, and a regulating plate, and includes an intermediate tray 58, a slide rail, a slide member, and a regulating plate.
It has the function of aligning the copy paper fed onto the paper.

The paper refeeding block includes a holder, a paper refeeding roller 38, a sorting roller 39.4o, and a guide plate, and the intermediate tray 58
Refeed the top aligned copy sheets one by one.

When performing composite copying or double-sided copying, when one of the mode selection keys 303 and 304 (FIG. 2) on the operation panel 300 is pressed and one of the copy modes is selected, the above! i7
The J change lever 41 is switched to the solid line position in FIG.
5 to the conveyance roller 50151 guided by the guide plate 37
transported to.

In the composite copying mode, the switching lever 59 is set to the state shown by the dashed-dotted line in FIG. It is sent with the copied side facing down. Then, it is aligned on the intermediate tray 58,
As with double-sided copying, the sheets are re-fed one by one by the clockwise rotation of the re-feed roller 38.

On the other hand, in the double-sided copy mode, the five switching levers, which are rotatable about the shaft 85, are set to the state shown by the solid line in FIG. The sheet is then transported to the left in FIG. 1 by transport rollers 52, 53, 54, 55 while being guided by a guide plate, and is reversed by reversing transport rollers 56, 57 and reversing guide 93 with the copied side facing up. It is fed onto the intermediate tray 58. Then, the sheets are aligned on the intermediate tray 58, and the sheets are re-fed one by one by the clockwise rotation of the re-feed roller 38.

The re-fed copy paper is separated by the separation rollers 39, 40 and conveyed to the timing roller pair 13 through the conveyance rollers 32, 33, 34, whereupon composite copying or double-sided copying is performed in the same manner as in the normal copying process. administered. Note that the paper refeed roller 38 is positioned and swingable in three stages (see the dashed line, dotted line, and solid line in FIG. 1), and when the copy paper is fed onto the intermediate tray 58, it is positioned at the upper or middle stage. However, when refeeding the paper, it is pressed against the copy paper aligned on the intermediate tray 58 with an appropriate pressure.

FIG. 2 is an explanatory diagram showing a part of the operation panel of the copying mode.

The illustrated keys include a print key 301, a paper size selection key 309, and its display portions 309a to 309d, vi
Numeric keypad for value input 305, υ1 entry key 307, clear/stop key 308, density setting keys 306a, 30
6b, duplex mode key 303 and display 303a, composition mode key 304 and display 304a, display section 208,
and a copy paper remaining amount and capacity display section 750. In this embodiment, the composition mode is automatically set by pressing a write mode key 9o3 of the editor, which will be described later.

Next, the Ill 111 circuit of this copying machine will be explained with reference to FIG.

This control circuit is mainly composed of a first microcomputer 621 for copying operation control and a second microcomputer 622 for erasing control, which are connected to each other for mutual synchronization.
A switch matrix 207 on which various operation keys and sensors are arranged vertically and horizontally is connected.

In addition, the output terminals (A1) to (A1
2) is connected to a main motor, a developing motor, a paper feed clutch, a paper refeed clutch, switching solenoids for levers (41) and (59), etc., and the switch matrix 207
Their on/off is controlled based on signals from the. The output terminals 101 and 102 also include an upper storage section 42,
The elevator drive motor of the lower storage section 43 is connected.

In addition, pulses generated as the elevator drive motors of the upper storage section 42 and lower storage section 43 rotate are respectively input to the input terminal B1.82 of the first CPU 621, and the remaining copy paper is determined by counting the pulses and displayed. The configuration is such that the information is output to a section 750.

Further, various light emitting elements (LEDs) such as a copy number display section 208 are connected to the first CPU 621 via a decoder 206, and their lighting and extinguishing are controlled.

On the other hand, the 20th PIJ622 is an A/D converter 930
Coordinate data is input from the editor 900 via . In addition, signals from various keys 901 to 905 of the editor 900 are input. Furthermore, in the write mode, in order to write a predetermined pattern on the photoreceptor according to the coordinate data input from the editor, an on-off table for each LED element constituting the eraser is created, and the first CPU 6
The composite copy is combined into 21.

Further, the third CPU 623 is connected to a drive control section for a DC motor for scanning the optical system, a drive control section for a stepping motor for a lens movement circle, a fixed position switch for the optical system 1, a timing switch, and the like. Note that 624 is a memory.

(Description of Editor 900) FIG. 3 is a perspective view of the editor 900 of this embodiment connected to the copying machine. In this embodiment, the editor 900t is placed on the original loading table 16 of the copying machine as shown in FIG.

The editor 900 includes a tablet 910 and keys 901 to 901.
905.

The tablet 910 has a large number of resistance wires 911 arranged at approximately 11II11 intervals in the X-axis direction and the Y-axis direction, and by pressing and connecting an arbitrary point on the tablet, the and the resistance value determined by the Y coordinate,
It is detected by voltage level. Therefore, if you want to input specific points on the manuscript as data at the X and Y positions,
The document may be placed on the tablet 910 in a controlled manner and the specific point may be pressed. Note that in this embodiment, the pressing is performed by a light ben 950.

Keys 901 to 905 are, in order, an erase key, a trimming key, a write mode key, a clear key, and an all clear key.

The erase key is a key that specifies full erase within a specific area, and the trimming key is a key that specifies full erase outside the specific area. Further, the write mode key is a key for specifying the write mode, and the clear key is a key for erasing input of coordinates or patterns. Further, the all clear key is a key for erasing all the above specifications.

(Description of the edge-to-edge eraser 4) FIG. 5 is a perspective view of the image-to-image eraser 4 disposed close to the photoreceptor drum 2, and FIG. It is an explanatory diagram of erasing.

As shown in the figure, the inter-image eraser 4 has a large number (N+1) of L
It has an LED array in which ED light emitting elements are arranged in a row,
By selectively causing an arbitrary LED element to emit light with a predetermined amount of light, the charge on the corresponding area on the photoreceptor drum 2 is removed, and the static '21! It is used to erase or write a pattern on a latent image.

For example, as shown in FIG. 6, if N+1 LED elements are assumed to have codes 0 to N from the left, and LED elements C to D are turned on from the end time of timer XA to the end time of timer XB, The charge in the area of the drum 2 corresponding to the shaded area in the figure is removed, and no electrostatic latent image is formed in the area. A predetermined pattern is written on the photoreceptor using a similar principle.

FIG. 7 is a circuit diagram of the driving rib of the eraser 4.

As shown in the figure, the drive control circuit includes a shift register 401,
The latch 402 and driver 4o3 are controlled by signals transferred from the second CPU 622,
Turn-on of each drive transistor Tr (0) to Tr (N>)
A).

In addition, each LED element (LED (0) to LED (N))
is driven by power supply voltage Vcc.

(Operation explanation) The operation of the apparatus of this embodiment will be explained below.

8 and 9 are flowcharts showing the control (conversion to pattern information, etc.) of the second CPU 622. Note that 1b111 of the first CPU 621 and the third CPU 623
&lI (copying operation, temperature adjustment, optical system control, etc.) are well known, so their explanation will be omitted.

As shown in the figure, the second CPU 622 starts processing by turning on the power, for example, and first sets the initial state (S10
2) Do. For example, the value n of a counter that counts the number of coordinate designations is set to 0, each flag is lowered, each memory is cleared, etc.

Next, set the memory area for coordinate data, etc. (8104)
do. Thereafter, the main timer for protection against CPU abnormality etc. is set (8106), and the process then proceeds to 8108 to activate input/output.

Next, at 8110, it is determined whether or not the copying machine is copying. If copying is in progress, the process advances to 5140, and if not, the process advances to 5112.

At 5112, it is determined whether or not a coordinate signal is input from the tablet 910. This is determined from a signal input from light ben 950 pressing tablet 910 via A/D converter 930.

If it is determined in 5112 that it is an "input cloth", the process proceeds to 5114, and after converting the input (x, y) coordinate signal to a data table for on-off control of the LED element,
Stored in the memory 624, and then the previous &l! Return to 3106. Note that the details of memorization will be explained in detail in the explanation of FIG. 9.

If the determination in step 5112 is that it is in the "input state", the process proceeds to step 8116 and subsequent steps.

At 8116, it is determined whether there is an input to the write mode key 903, and if it is determined as "input cloth", the W flag is determined (8118), and if the W flag is set, it is lowered (8118).
20) On the other hand, if it is descending, it is raised (S122), and then the process returns to 5106.

In the case of "input state", the process advances from 5116 to 5124.

In 5124, it is determined whether there is an input on the erase key 901, and if it is determined as "input cloth", an E flag (erase flag) is set (8126), and the process returns to 8106. "Input status"
If so, proceed to 8128.

At 8128, it is determined whether there is an input to the trimming key 902, and if it is determined as "input cloth", the E flag is lowered.
130), return to 8106. In the case of "input state", 51
Proceed to step 32.

At 5132, it is determined whether there is an input from the clear key 904, and if it is an "input cloth", the process returns to 5104, and if it is an "input state", the process advances to 5134.

In 5134, it is determined whether or not the all clear key 905 has been input. In the case of “input cloth”, return to step 5102 and “
If the input state is set, the process returns to step 5106.

In the manner described above (3112 to 8134), coordinate information and/or pattern information for editing and copying is stored in the memory 624.

If it is determined in 5110 that the copying operation is in progress, the process advances to $140 and thereafter.

First, the W flag is determined (8140).

If the W flag is set, it is in write mode, so
Go to 5142, turn off the exposure lamp, and use Light Ben 950.
After preparing for the electrical writing of the pattern using the coordinates corresponding to the pressed points, the process proceeds to 8146.

If the W flag is down, erase within the area specified by the input coordinate data (E flag - 1
In order to prepare for erasure outside the area (in the case of E flag - 0), the process directly proceeds to 8146.

At 8146, a scan timer is set.

In 5148, it is determined whether the leading edge of the image (y-y,) has been reached. This is determined based on a predetermined position signal from the scan system.

3150-8156 each LED element of eraser 4,
This is a step for on-off $IJ II based on the table obtained from input data.

For example, if the W flag is -1, each LED element is turned on and off 1t based on the table created in step 5114.
Illllll. Specifically, first 5150 and ED
"Timer 1" is a timer that defines the unit light emission time of the element.
' until the timer 1 exceeds (8154)
, each LED element is turned on or turned off based on the data (8152). Such control ii! ! The process is executed based on the table until the i@terminal (y-y□) is reached (S156). As a result, electrical writing of a predetermined pattern is performed.

If the W flag is -0, the specified area is erased or trimmed in the same manner as above. That is,
By turning on or extinguishing the LED element corresponding to the designated area for a time corresponding to the area, the inside or outside of the area is erased.

Next, the process advances to 8158, and when the scan timer set in 8146 ends, it is determined whether copying is in progress (8160). This is assumed to be copying multiple sheets, and if copying is in progress, the process returns to 5140,
If copying is not in progress, proceed to 5162.

At 8162, the W flag is determined. This is to determine whether the previous copying operation was copying a document or creating an image of a pattern.

If the W flag is -1, this means that the previous operation was pattern image creation, and the process proceeds to 8164, lowers the W flag, returns to 5110, and copies the original (combining over pattern image formation). copy).

If the W flag is -0, it means that the previous operation was copying a raw stone, so the process returns to step 5104 and prepares for the next operation.

During this time, the CPU, which controls the copying operations of the copying machine,
<8170) means that communication is performed by means of an interrupt.

FIG. 9 is a flowchart showing details of the processing in step 5114.

First, in 5202, the W flag is determined.

If the W flag is -1, the process advances to 5204, and the coordinate data input from the tablet is memorized while the input continues (3206). As a result, a table for pattern entry is created.

If the W flag is O, proceed to 8208 and set the coordinates for editing copy (erase or trimming) at 2 points (n-2
(8210.8212).The reason for setting n-2 is that in this embodiment, since the editing copy area is specified as a rectangular area, the coordinates of both ends of the diagonal of the rectangular area must be specified. This is because it is sufficient.

From 5212, the process proceeds to 5214, where an on-off table for each LED element of the eraser 4 is created based on the coordinate data, and this table is memorized (S216).

As described above, from the input coordinate data, the LED
A device on-off table is created.

In the embodiment described above, original images are overlapped and copied by pattern writing and composite copying. However, it is also possible to adopt a configuration in which only pattern writing is performed independently. Also,
A configuration in which these can be performed selectively is also possible.

Further, although the above embodiment does not mention the case of changing the copying magnification, it is also possible to combine it with a known magnification changing means.

[Effect 1] As described above in detail, the present invention is an editing input device that can input a desired pattern.

As is clear from the description of the embodiments, according to the editing apparatus of the present invention, a desired pattern, such as an underline, can be written on a copy sheet superimposed on a document image. Therefore, the document is not soiled and the pattern is prevented from becoming enlarged or misaligned.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the structure of a copying machine to which the embodiment apparatus is applied, and FIG. 2 is an explanatory diagram showing a part of the operation panel of the copying machine. FIG. 3 is a perspective view of an editor connected to the copying machine. FIG. 4 is a configuration diagram of the control section of the copying machine according to the embodiment. FIG. 5 is a perspective view showing the positional relationship between the image-to-image erase unit and the photosensitive drum. FIG. 6 is an explanation IJ of the relationship between the inter-image erase unit and the erase 1Ala. FIG. 7 is an eraser drive circuit diagram. FIG. 8 is a flowchart showing the control of the second CPU. FIG. 9 is a flowchart showing the process of 8114 in FIG. 621...1st CPU 622...2nd CPU4
...Image erase unit 900...Editor

Claims (2)

[Claims] (1) a coordinate input means that has a tablet on which a document is placed, and generates a coordinate signal of a predetermined point by pressing a predetermined point on the tablet surface; a write mode key that specifies input of pattern information; When the coordinate signal is input under the write mode, the coordinate signal is converted into pattern information corresponding to the coordinate signal, and the coordinate signal conversion commands the control unit of the copying machine to make a composite copy of the pattern. An editing input device for a copying machine, comprising: (2) When the coordinate signal is input under the non-writing mode, the coordinate signal converting section converts the coordinate signal into coordinate information of the area where the charge on the photoreceptor is to be erased to the control section of the copying machine. An editing input device according to claim 1.