JPS63301362A - Picture processor - Google Patents

Abstract

PURPOSE:To improve the operability of a picture processor by recognizing the input handwritten character symbols and adding these character symbols to the read pictures, outputting it. CONSTITUTION:A control part 60 reads the picture of an original via an original processor 67 and stores the handwritten characters equivalent to a single character and received from an operation part 100 into a RAM 60b. Then the part 60 recognizes the characters stored in the RAM 60b and adds these recognized character symbols to the desired positions of the picture of the original for formation of an output picture. As a result, various character symbols can be added to the output picture.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image processing apparatus, and more particularly, to an image processing apparatus that reads an image and forms an output image.

[Prior Art] A typical example of this kind of conventional apparatus is a copying machine.

In recent years, the functions associated with this copying apparatus have become remarkable. One of them is when copying a manuscript,
You can add characters (strings) specified by the operator (hereinafter referred to as add-on characters) and output them, or you can specify a desired area in the document image and add other characters to the specified area. Some devices have a function to perform image processing different from that of the area.

A copying machine having both of these two functions can be achieved if it is equipped with a coordinate input panel such as a digitizer.

For example, FIG. 30 shows an editor section equipped with this digitizer on a copying machine.

In the figure, 170 is a coordinate manual board, and 173 is an input pen for specifying a position.

Now, when setting an area in this editor, just before setting the area, the user operates a key indicating area setting, and uses the input pen to specify both diagonal end positions of the area. After this, the user may operate the same key to support image processing for the specified area.

Also, when inputting add-on characters, the add-on characters are input by sequentially specifying desired character symbols in the character symbol designation area 172 with the input pen before executing the process. Note that the expansion position of this add-on character is also specified using a manual pen.

[Problems to be Solved by the Invention] However, when inputting add-on characters, the number of types of character symbols in the character symbol designation area 172 is limited. Therefore, if you have this character symbol specification area, you can make it larger and increase the number of character types (for example, add shallow learning, etc.)
However, in that case, it would take time to search for the characters, which would be extremely troublesome.

The present invention has been made in view of the related art, and it is an object of the present invention to provide an image processing device that has good operability and is capable of adding a wide variety of characters and symbols to an output image.

[Means for solving the problem] In order to solve this problem, the present invention comprises a groove bottom as shown below.

That is, in an image processing device that reads a document image and forms an output image, there is a reading unit that reads the document image, an input area for at least one character, and a recognition unit that recognizes a character input manually in the area. and an image forming means for adding read characters and symbols to desired positions of the read document image to form an output image.

[Function] In the configuration of the present invention, the recognition means recognizes the character symbols inputted by hand, and the character symbols based on the recognition processing are added to the image read by the reading means to form an image. forming an output image by the means;

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

■Structure, configuration, and basic operation■-1. Explanation of the structure (Fig. 1) 'fS1 is a schematic configuration diagram of the copying machine according to this embodiment. Indicated. In the figure, 1 is a main body of the copying machine, and 2 is an image forming section centered on a photosensitive drum. Further, 7 and 8 are developing units each containing toner of different colors (for example, red and black), which selectively bring the photosensitive drum 20 into contact with the toner of the two colors. 3 is a paper feeding unit for feeding transfer paper SH into the machine, and includes a cassette 9 and its paper feeding rollers 10 and 11, which are detachable from the main body.
Sensors S9-12. It consists of S22 and S23. Reference numeral 4 denotes an optical system including a lens system for exposing and scanning a document and forming an image on the photosensitive drum 20, and is driven by an optical motor 19 in the direction of the arrow. 25 is a fixing device, 23 is a second device which will be described later.
The paper feeding section 40 is an intermediate tray. Reference numeral 70 denotes a shutter for blocking the document structure projected onto the drum 20 at a predetermined position. 90 is a laser device for erasing unnecessary parts of images and writing character data. Other numbers and symbols will be made clear in the following explanation.

■-2. Explanation of the groove bottom of the electrical control system (Figure 2) Figure 2 is a block diagram of the electrical control system, where 101 is the main switch, D
CP is the DC power supply that supplies power to the IIJ control section 60, etc., S is the sensors shown in Figure 1, 100 is the operation section, 61.62
AC load! 63 is a motor control unit that controls the main motor 18 and optical motor 19; HvT is a high-voltage generator that controls electricity 13, 15.16, and developing device 7°; 8 to supply high pressure. 66 is a load such as a solenoid, clutch, fan, etc., 67 is a document processing device, 68 is a sorter, 1
80 is a coordinate reading device (editor), and 80 is a buzzer. The control unit 60 includes a ROM 60a that stores a program related to a flowchart shown in FIG. 3, which will be described later, and a RAM 61 used as a work area.

■-3. Explanation of basic operation l-3-1. At reset and power-on Now, when the power switch 101 is turned on, first the heater 21 in the fixing device 25 lights up, and the fixing roller reaches a temperature that enables fixing. Wait until it reaches (wait shape R). When the fuser roller reaches this temperature, the main drive motor 18 is energized for a certain period of time, and the photosensitive drum 20. The fixing device 25 and the like are driven to bring the rollers in the fixing device 25 to a uniform temperature (weight release rotation). Thereafter, the main motor 18 is stopped and stands by in a state ready for copying (standby state).
8 and various transfer paper conveyance rollers. and,
When a copy command is input manually from the operation unit 100, the copy operation starts. Further, the main motor 18 is connected to the control unit 6
The rotational speed can be switched to two stages by a command from 0, the details of which will be described later.

l-3-2. Description of Image Formation When a copy command, which will be described later, is issued, the main motor 18 rotates, and the photosensitive drum 20 begins to rotate in the direction of the arrow. At the same time, high voltage is supplied to the primary charger 13 from the high voltage supply device HVT to uniformly charge the photosensitive drum 20. Next, the exposure lamp 24 is turned on and the optical motor 19 is driven to expose and scan the original placed on the original table S in the direction of the arrow. Through this operation, the obtained light is projected onto the photosensitive drum 20, forming an electrostatic latent image. Next, toner is attached (developed) to this latent image by a developing device F or 8, and after it is transferred onto a transfer paper SH by a transfer charger 15, it is separated from the photosensitive drum 20 by a portion of a charger 16. Ru. Next, the residual toner remaining on the photosensitive drum 20 is collected by the cleaner 6, and the static electricity is uniformly removed by the erase lamp 28. Thereafter, this copy cycle is repeated.

In addition, when an original is being manipulated and projected onto the photosensitive drum 20 (it does not matter even after projection), a laser 91, a polygon mirror 93, a polygon mirror 93
A laser unit 90 composed of a polygon motor 92 that rotates the image area erases unnecessary charges outside the image area. The laser unit 90 is also capable of erasing any part of an image or writing simple characters on transfer paper, which will be described later.

Further, there are developing devices 7 and 8 that develop images on the photosensitive drum 20, and these are operated by a control unit 60 that receives selection commands from the operation unit 100.
is received, and one of the developing devices is brought into contact with the drum 20. In this embodiment, the developing device 8 is loaded with black toner, and the developing device 7 is loaded with, for example, red toner to enable color copying. Pressure (contact) of these developing units 7 and 8 to the drum 20 and release thereof are achieved by turning on/off solenoids 30 and 31 provided in the respective developing units. Further, the developing roller 7-a of these developing devices 7.8,
A developing bias voltage is applied to 8-a from a high voltage generator UHVT.

Furthermore, the copying machine in this embodiment is capable of not only normal single-sided copying but also double-sided copying and multiplex copying (described later); however, the transfer paper once passed through the fixing device has a higher resistance value than that of the first-side copy. As the situation changes, we have transcribed it to deal with this! The conditions of the high voltage applied to the IF electric device 15 and the separation charger 16 are also different between the first side and both sides or the second side during multiple copying. These developing biases and high voltage values for transfer and separation are controlled by commands from the control section 6o.

The optical system 4 is reciprocally controlled by rotating the optical motor 19 forward and backward through the motor control section 63 in accordance with commands from the control section 60 . The sensor s1 is an optical system home position sensor, and is stopped at this position in the standby state. Sensor S2 is an image edge sensor corresponding to the leading edge position of the original image, and a signal output from this sensor S2 is used for the timing of copy sequence control. Also, sensor S3 is at the limiter position (inverted position) at maximum scanning.
Used for detection. The optical system 4 reciprocates with a scan length according to the cassette size and copying magnification based on a command from the control section 60.

l-3-2, Transfer paper control (Figure 3) Next, control of the transfer paper conveyance system will be explained.

In the paper feed section 3 in FIG. 1, 89 and Sit are upper and lower paper sensors, respectively, and StO.

512 are upper and lower glue lid position detection sensors, respectively;
S22. S23 are upper and lower cassette size detection sensors, respectively.

Hereinafter, similar operations will be performed for the upper and lower stages, so only the paper feeding operation for the upper stage will be described here. First, when the cassette 9 is inserted, the size detection sensor 322 reads the size of the loaded transfer paper, and the paper sensor 9 identifies whether there is any transfer paper in the cassette 9. At this time, if it is normal, the out-of-paper indicator on the operation unit 100 is turned off, and a display corresponding to the cassette size is selectively turned on.

Next, when a copying operation is started in response to a copy command, a middle plate raising clutch (not shown) is activated to raise the middle plate in the cassette 9 and raise the transfer paper SH. Transfer paper S
When H rises and contacts the paper feed roller 10, the clutch is turned off based on the signal from the lifter detection sensor SIO.
At the same time as F, the paper feed roller 10 is driven to supply transfer paper into the machine. As described above, the transfer paper in the cassette is raised by the middle plate raising clutch, and thereafter the raised position is maintained, and the above-mentioned raising operation is not performed when the next copy is started.

Furthermore, if the number of transfer sheets in the cassette decreases during continuous copying and the top surface of the transfer sheet SH falls below a predetermined position, the clutch is similarly turned on to raise it again to the predetermined height.

Now, the transfer paper supplied inside the machine is the sensor S7 before registration.
However, at this time, since the registration roller 12 is stopped, an appropriate loop is created and the registration roller 12 is stopped. Next, in order to align the leading edge of the image formed on the drum 20, the optical system 4
The timing signal (sensor S2) drives 12 registration rollers, aligns the leading edges, and sends the transfer paper to the transfer section. At the transfer section, the drum 2 is charged by the transfer charger 15.
After the image on the toner 0 is transferred to the transfer paper, the toner is separated from the drum 20 by the separation charger 16 and sent to the fixing device 25 by the paper conveyance section 17. In the fixing device 25, the surface of the fixing roller is controlled to a predetermined temperature by a temperature sensor (not shown) arranged on the surface of the fixing roller and a heater 21, and the toner is fixed on the transfer paper. The paper is detected to be ejected by the rollers 26 and 27, and the paper is ejected from the machine by the rollers 26 and 27.

Up to this point, normal one-sided copying has been explained.

For multiple copies (combining multiple images on one side),
When conveyed by the roller 26, the flapper 29 is switched to the position shown by the dotted line by the operation of a solenoid (not shown), and the transferred paper, which has been fed, transferred, separated, and fixed, passes through the path 33 and is transferred to the second position. The paper is sent to the paper feed section 23. Second
In the paper feeding section 23, after the paper is detected by the second pre-registration sensor S5, a zero-order control section performs lateral positioning using a transfer paper edge detection sensor S6, a lateral registration sensor S8, and a solenoid for lateral registration alignment. In response to an instruction from 60, the second registration roller 37 sends it out again to the registration roller 12 section. Thereafter, the same copying process is executed and the paper is ejected to the paper ejection tray 32.

In addition, during double-sided copying, the transfer sheet is moved up to the middle in the same way as in the normal copying operation described above, but the ejection roller 2
7, the rear end of the transfer sheet passes through the flapper 29, and then the discharge roller 27 is driven in the reverse direction. As a result, the transfer paper is guided by the flapper 29 and introduced into the path 33. This reverse rotation drive is performed by a solenoid (not shown) that controls forward and reverse rotation. The subsequent operations are the same as in the case of multiple copying described above, but since the transfer paper passing through the path 33 is reversed from the front and back of the paper during multiple copying, images are formed on both sides. .

In the above-described multiple copying and double-sided copying, the copying process is performed on one original document, but in the case of multiple copying of a plurality of sheets or double-sided copying, the intermediate tray 40 is used. That is, as shown in FIG. 1, the intermediate tray 40 has a paper conveyance path 59.4.
3 and a tray 53 for temporarily storing transfer paper in an intermediate state, and in the case of multiple copying of a plurality of sheets, the fused transfer paper is transferred under the same control as the double-sided copying of the above-mentioned one-sheet copying. After a portion of the paper has been ejected by the paper ejection roller 27, the paper ejection roller 27 is driven in the reverse direction, thereby transferring the paper to the path 33.
43 and is stored in a tray 53. After repeating this operation and storing all the transfer sheets that have been copied on the first side in the tray 53, the next copy command drives the paper feed rollers 5B and 57 for the second side, and the two
The second copy is executed. On the other hand, in the case of multiple double-sided copies, the flapper 29 passes from the fixing device 25 through the paths 33 and 43 and is stored in the tray 53 under the same control as the one-sheet multiple copying process described above. This is the same as in the case of , so it is omitted.

Next, the processing of the control section 60 will be explained when using the paper feed section 23 and the intermediate tray 40 used for double-sided/multiple copying.

As described above, the embodiment has two systems of transfer paper feeding mechanisms for realizing double-sided copying or multiple copying.

That is, there are cases in which only the second paper feed section 23 is used, and cases in which the intermediate tray 4o is also used. Which of the two is selected is not determined by an operator's instruction, but is determined by the control unit 60 of the main body 1 in the embodiment. That is, the optimum system is determined and processed based on the size of the transfer paper and the set number of copies. Furthermore, in the former system, it is an essential paper feeding section to realize double-sided/multiple copying. However, more than one sheet of paper cannot be stocked there. In addition, in the latter system, it is possible to stock multiple sheets of paper, but horizontal alignment can only be performed at a predetermined fixed size.The control process for transfer paper during double-sided/multiple copying is shown in Figure 3. This will be explained according to the flowchart.

When a copying operation is started in response to a copy command, first in step 5270-1, it is determined whether double-sided/multiple copying is to be performed without exchanging the same original, that is, originals. For example, in a mode in which a predetermined portion of a single document is copied in color and other portions are copied in black, the determination is YES. If YES, it is determined in step 5270-2 whether the original is a standard size. If it is not a standard size, step 5270-
5, and select only the second paper feed section 23 unconditionally. Also, if it is a standard size, the control is in step 5.
The process advances to step 270-3 to determine whether the set number of copies is one. If one copy is to be copied, the process proceeds to step 5270-5 in the same way, but if one or more copies are to be made, the process proceeds to step 5270-4, and this time the set number of copies is 3, which is the maximum number of sheets that can be loaded on the intermediate tray 40.
Determine whether the number is greater than 0. The number of copies of this is 30
In the above case, the process moves to step 5270-5, but
If the number of copies is less than that, step 5270-8
Proceed to. At this time, if the number of copies is 30 or more, the number of copies may be set to 30 and the process may proceed to step 5270-8.

Now, moving to step 5270-5, first, one sheet is copied, and the transfer paper is set in the second sheet feeding section 23. Next, in step 5270-6, the paper is re-fed from the second paper feed section 23,
Copies are made and the transfer paper is ejected from the machine. Step 52
In step 70-7, it is determined whether the number of copies has reached a set value. If it is determined that the number of copies has not been completed, the processing from step 5270-5 onward is repeated.

Further, if the determination in step 5270-4 is NO, that is, if the number of copies is 2 or more and 30 or less, the process moves to step 5270-8, and the transfer paper on which the first copy was made is set. The number of sheets is stored in the intermediate tray 40. The stored transfer sheets are then re-fed and transferred for the second copying process, and then sequentially discharged outside the machine.

On the other hand, if the determination in step 5270-1 is NO, that is, if it is determined that the copy is made from multiple originals, the process proceeds to step 5270-10, where it is determined whether or not the original is a standard size. do. If it is not a standard size, the number of copies is set to IN in step 5270-17, the first copy is made, and the document is set in the second paper feed section (step 5270-18). Next, after replacing the original, Operate the copy start key again (step 5270-1)
9) Do. The transfer paper in the second paper feed section receives this instruction and
The copy is processed for the second time and is ejected from the machine.

Also, if the determination at step 5270-1o is YES, the determination at the next step 5270-11 (the number of copies is “
1”) is also YES, step 5270-
18 will be processed.

In step 5270-12, it is determined whether the number of copies is 30 or more, and if YES, the number of copies is 30 or more.
Even if it is more than 30 sheets, it is set to 30 sheets. Next step 52
At 70-14, the first copy process is executed for the set number of copies (set to 30 or less), and the copies are accumulated in the intermediate tray 40. Next, after replacing the original, operate the copy start key 103 again in step 527.
0-15), the second copy is executed, and the documents are sequentially discharged from the machine (step 5270-16).

As explained above, in this embodiment, in the case of temporary multiplex/double-sided copying, copying of a size other than the standard size, that is, paper feeding from a universal cassette, and single-sheet copying, the paper is not sent to the intermediate tray 40, but directly. The paper is sent to the second paper feed section 23 to be re-fed, and when a fixed size and a large number of copies are to be made, the paper is once stacked on the intermediate tray 40 and then sent to the second paper feed section 23 to be re-fed.

In addition, the operator does not have to select which of these two fffi-class systems to use, but the sequence program automatically selects which one to use, so the operator does not have to think about it each time, and control is always performed using the optimal system. It will be done. In addition, for non-standard multiple copies, it is possible to perform copying one sheet at a time using the second paper feed without using an intermediate tray.

Furthermore, unnecessary troubles can be avoided by determining inconveniences with the transfer paper (such as the size being too small) and discharging it outside the machine without performing double-sided/multiple copy processing.

II. Operation Panel (FIG. 4) Next, the operation panel 100 will be explained with reference to FIG. 4.

In the diagram, 10! Reference numeral 102 is a power switch for controlling power supply to the copying machine, and 102 is a reset/stop key which operates as a copy stop key during a copying operation and as a key for returning to a standard mode during standby.

103 is a copy start key, 104 is a color developer selection key, and by operating this key 104, developers 7 and 8 are selected.
The contact with one of the photosensitive drums 2o is switched. 10
5 mainly inputs the number of copies etc. using the numeric keypad. 106 is a key for selecting a cassette (transfer paper size selection), 107
10B is a copy density adjustment key, and 10B is a key for selecting the same size copy. Hereinafter, reference numeral 109 is a zoom key for specifying the copying magnification by a predetermined magnification, for example, in 1% increments, 110 is a standard magnification key for specifying a standard reduction or expansion magnification;
11 is a key for specifying border erasure on copy paper; 112 is a key for specifying the stitching margin at one end of copy paper; 113 is a key for specifying photo mode; 114 is a multiple key for selecting multiplex mode; 115 is a document key Continuous key to specify continuous copying which divides the copying area of glass 5 into left and right and makes two copies automatically, 116 to 118 are keys to select double-sided copying mode, 119 and 120 are keys to select sorter operation. This is the specified key.

Further, 131 to 143 are LED indicators that light up to indicate the operation status (on/off) of each key.

For example, the display 131 is a standby display LED that lights green when copying is possible and red when copying is not possible;
32, when the developer switching key 104 is pressed, the color developer 7
Lights up when selected.

Further, 122 and 123 are keys for specifying a mode for writing predetermined character data into a copy image, which are operated when entering the number writing mode and the date writing mode, respectively.

134 is an indicator that lights up during number writing mode,
Reference numeral 135 is a display that lights up during the date writing mode. In addition, 136 is a copy number display, 137 is a warning display indicating a warning of paper jam (out of paper without transfer paper), or jam etc., 138 is a cassette size display that displays the selected cassette size, and 139 is a copy magnification. 140 is a mode display for frame erasure and binding margin photo, 141 is a mode display for multiple page quick copy, 14
2 is a display for each mode of double-sided copying, and 143 is a display for displaying sort mode and group mode when a sorter is used.

! ■! , Editor II! -1. Description of the structure of the editor (FIG. 5) Next, the editor 300 will be explained using FIG. 5.

The editor 300 is provided on a lid portion located on the top surface of the document table 5, and FIG. 4 is a view of the editor 300 viewed from the top surface.

This editor is a known electromagnetic tablet part 302.
(Equipped with a mark 311 indicating the document placement reference position)
, an input pen 301 for specifying any position on the tablet 302, a message display LCD 304, and mode display LEDs 305 to 310.

The pen 301 has a built-in spring-loaded switch that is turned on when the pen tip is pressed and turned off when the pen tip is separated from the tablet.

Now, the following two processes can be performed on the document placed on this tablet 302.

(2) Area setting manual mode, that is, settings are made to perform masking, trimming processing, output color selection, etc. on a desired area in the document image specified with the manual pen 301. Regarding this area setting, in this embodiment, two points (both end points of the diagonal line of a rectangular area) are specified using the input pen 301, but if the area is not limited to a rectangular area, an arbitrary area can be specified using the human pen 301. You can also set a closed interval by tracing . (2) Manual mode for additional characters (add-on characters) Input a character symbol to restore a new character symbol to a desired position on the original image. For this reason, in the embodiment, a character/symbol designation area 303 and a handwritten cantilever 312 are provided on the tablet 302. Character symbol input area 3
Regarding 03, when the mode is entered, input is performed by specifying each character symbol with the input pen 301, but for the handwritten input canilia 312,
This is achieved by character recognition based on the strokes of handwritten characters input with the input pen 301. The character/symbol information input into any of these areas is displayed on a message display liquid crystal (LCD) 304. Note that the character/symbol information specified or input in these areas 303 and 312 does not necessarily result in add-on character manual processing, but is also used when selecting various processes at each processing stage of the editor 300. . Although the explanation may be complicated, the position of the manually added add-on character, its direction of expansion, and the size of the expanded character are as follows: In the example, one character is 4 x 4 mm and 8 mm.
The setting of ``X 8 Iam'' is achieved by recognizing the handwritten characters of the human pen 301. Then, the LED 3 indicates that the character size and development direction have been specified.
05 to 308 are lit to notify the operator.

Furthermore, it is necessary to switch between the manual modes (1) and (2) described above, but this switching is selected according to the operating procedure of the editor 300, and the details will be described later.

Ill-2, Description of Editor Control System (FIG. 6) Next, the configuration of the editor 300 is shown in FIG. 6, and each element will be explained.

302 is an input surface of an electromagnetic tablet.

When the pen 301 is on the top of the tablet input surface 302,
Den II! The coordinate reading section 330 samples the input coordinate position by one lead. The accuracy of this coordinate manually is 10 trees/mm, and the sampling period of the coordinate points is Io.
ms (100 points/second). The editor control unit 331 receives the coordinate data from the coordinate reading unit 330 and the pen 301.
Input the 0 on and off signals, manually enter the coordinates and designation (
It recognizes characters and symbols created by humans. Furthermore, LED display for image conversion mode, font size, and font direction
It also controls the LCD 304 for displaying messages and the add-on data.

The LCD 304 displays an area designation mode (image conversion mode). The LED 310 indicates a designated area, and in this embodiment has three types of displays.

III-3, Explanation of editor operation processing I11-3-
1. Explanation of the basic processing of the editor (Fig. 7 (a), (f)
)) Next, the processing flow of the editor control unit 331 is shown in FIG. 7(a).
-(f) will be used to explain. In addition, Fig. 7 (a) to (e)
The operating procedure and the message table shown in FIG. 7(f) are stored in the ROM 331a in the editor control section 331. The RAM 331b is used as a work area for the editor control section 331.

FIG. 7(a) shows the overall processing procedure of the editor 300,
When the main switch 101 of the main body 1 is energized, power is also supplied to the editor 300, and the following processing is executed.

First, in step 5350-2, message 0 (
(see FIG. 7(f)) is displayed on the LCD. In addition, "P" in this message "Or*Please input editor commands P and A*" means the area setting input mode (■), and "A" means the add-on character manual mode (■). Next step S
350-3, select and specify this "P" or "A" from the character symbol designation area 303, or use the input pen 301 on the handwritten character entry canister 312 to handwrite the character "P".
Or enter "A". At this time, editor control unit 3
31 determines whether the first input coordinate position is in the character/symbol designation area 303 or the handwritten character entry area 312. Now, in the next step 5350-4, it is determined whether the input information is "P".
If it is determined that this is the case, the border area designation mode is executed in step 5350-5. If a value other than "P" is input, control returns to step 5350-6, where it is determined whether the input information is "A" or not. If this judgment determines that a character other than "A" has been input, it is assumed that information other than the character specified in message 0 has been input, and no processing is performed and the process returns to step 5350-2. If not, that is, if "A" is input, the process goes to step 5350-7 and the add-on character input mode (2) is executed.

Note that during the above-described processing, the editor control section 331 executes interrupt processing (FIG. 7(b)) in order to perform communication processing with the control section 60 in the main body 1. Here, data based on the area setting or add-on character processing described above is output to the outside of the main body 1, and data is input from the main body 1, so-called data communication (step 5351-2). At this time, when a reset request signal is received from the main body 1, the editor 300 is temporarily reset (step 5350-
2), but otherwise returns to the interrupt position.

III-3-2. Explanation of character recognition (Fig. 7 (C)) Now, when the above-mentioned P" or A" is input into the handwritten character area 312 with the input pen 301, the input character is recognized. It is necessary.

Furthermore, even when adding-on characters are manually input by hand, it is necessary to recognize the input characters. The following description describes the handwritten character recognition process.

Character recognition in this embodiment is online handwritten character recognition, and a handwritten character entry canister 312 is provided with a human pen 30.
1 is used to sequentially recognize handwriting input.

The handwriting input to the handwritten character entry canister 312 is sampled at equal time intervals based on the position of the pen tip and the on/off state of the pen tip. In reality, the number of samples per unit time varies depending on the writing speed, but usually 10
For straight line portions in 0 characters, which are performed at short time intervals of about 0 points/see, and redundant sample points when written slowly, preprocessing is performed to select the minimum sequence of sample points. Then, each stroke (handwriting from when the pen is turned on until it is turned off) is divided into equal parts, and approximated by a direction vector sequence divided into eight parts, for example. Stroke analysis is performed by matching the input stroke vector sequence with a standard stroke vector sequence.

When recognizing a character, it is recognized by matching it with a character symbol dictionary (not shown) created by combining each standard stroke.

In this way, limited characters such as alphanumeric characters can be recognized without any problem.

Now, based on the above-mentioned processing outline, handwritten character recognition processing will be explained according to the flowchart of FIG. 7(C).

Note that the following process is a recognition process for one character, and when a character string consisting of a plurality of characters is manually generated, the following process is accomplished by executing the process one character at a time.

First, in step 5352-2, the screen shown in FIG.
Message 1r *Please enter one character in the text field* shown in f) is displayed.

When the operator sees this display, the handwritten character caniglia 31
2, one character is input, but the editor control unit 331 reads the input coordinate positions one after another (step 5352).
-3). At this time, in step 5352-4, input coordinates and pen on/off information are imported (step 5352-4).
352-4). Next, in step 5352-5, a stroke vector is extracted from the input handwriting. Step 53
In step 52-6, the obtained strokes are matched with standard strokes, and the input character is expressed by a combination of standard strokes. The matched character strokes are then matched with the dictionary section and determined to be characters (step 5352-7). Next step S352-
If it is determined in step 5352-9 that the matching result is a character that is not in the dictionary section, message 2 is changed to L in step 5352-9.
Displayed on the CD 304 to instruct re-input.

Further, if it is recognized by matching with the dictionary section, the process ends.

III-3-3. Processing procedure of area designation mode (FIG. 7(d)) Next, the area setting mode process (step 5350-5) in the main flowchart will be explained according to FIG. 7(d).

First, in step 5353-2, the editor control unit 331 specifies two diagonal points of the message 3r* area. *" and display it on the LCD 304. Next, until the pen is turned off in step 5353-3,
You will have to wait, but if it is turned on (if the coordinates have been input), the coordinates of the first fish are entered manually in step 5353-4. Thereafter, the coordinates of the second point will be input in step 5353-5.6. As described above, when the coordinates of two points are input, the copy mode (
The palm of this mode will be described later) or specify the storage location of the coordinate values.

Therefore, in the next step 5353-7, message 1 is displayed on the LCD 304, prompting the user to input a - character, and in step 3353-8, one character is input.

If the character "M" meaning mode designation is input, then in step 5353-10, the mode number (1 to 9
) in the same way. If it is determined that a character other than this has been input (step 5353-15), step 5353-10 is executed again. If numeric input from 1 to 9 is recognized, step 5353-16
Turn on one of the LCDs 304 with the corresponding mode number,
The process returns to step 5353-8 again.

Further, if it is determined in step 5353-9 that the manually entered character is something other than "M'", the process moves to step 5353-11, and if the entered character is a numerical value between 1 and 3. Determine whether or not. If YES, the process moves to the next step 5353-13, where the area information previously input to the corresponding memory area is stored in the RAM 331, and one of the corresponding LEDs 310 is turned on in step 5353-14. That is, the LED corresponding to the storage location of the setting field f& and its mode will be lit. Also, the character input in step 5353-11 is “E”
If , go through step 5353-9.11.12;
Finish the area setting process.

Note that information regarding the area coordinates and the copy mode during the above processing is output to the main body 1 in the interrupt routine described above.

II+-3-4. Add-on character input processing procedure (FIG. 7(e)) Next, the add-on character input processing (step 5350-7) will be explained using FIG. 7(e).

First, in step 5354-2, the message 4r*Please input add-on characters*1 is read and displayed on the LCD 304. Next, in step 5354-3, the human pen 301
determine whether it is on or off. When it is turned on, the coordinate position at that time is read (step 5354-4), and the process branches to step 5354-6 or step 5354-10 according to the coordinate position. That is, it is determined whether the input coordinate position is within the character/symbol designation area 302 or within the handwritten character entry area 312. If it is determined that the input coordinate position is within the character symbol designation area 302, message 5 is displayed on the LCD 304 in step 5354-10, and one of the character symbols is displayed in step 5354-11 as in the conventional manner. By specifying the add-on character to run human power.

Further, if it is determined that the input coordinate position is within the handwritten character entry canister 312, control moves to step 5354-6, and - character input is executed. Note that this character input process executes the customer ± recognition process in II+-3-2 described above. Now, the characters that are input and recognized in this add-on character input process are sequentially displayed on the LCD 304 until the mark character that means carriage return is input manually, but the carriage return mark character is input in this add-on character input process manually. If it is determined that
It is assumed that the input of the add-on characters (column) has been completed, and in step S6, a message 6 for manually adjusting the character size is displayed on the LCD 304. The operator looks at this display and then specifies the font size (in this example, it is possible to print with 4 mm square characters and 8 mm square characters) (
Step 5354-10) However, if the human input character is neither "4'" nor "8", the process moves to step 5354-12 and sends the message 7r*Character size specification is recognized as 8 or 4*1 to the LCD 304. Display and return to step 5354-10 again.Also, if the input character is "4"
Or when it is "8", step 5354-13
In order to notify that it has been recognized, the LCD
Turn on 304 or 308. Next, the control moves to step 5354-14, and this time a message 8r *Please specify the direction of the character with ↑ or -*1 is displayed on the LCD 304 to the effect that the expansion direction of the input add-on character is manually set. The operator looks at this display and inputs the desired direction by hand using the input ben 301 (step 53).
54-15). If the input characters are different from those specified, steps 5354-16 to 53
Move to 54-17, message 9r *The direction of the character is recognized by ↑ or → *J is displayed, and again step 5
Return to 354-15. Further, if the information according to the message is obtained, the process moves to step 5354-18, and the LCD 304 or 306 in the specified direction is turned on to notify that the information has been confirmed. Then, the next step 5354-19
Message 10r prompting you to input the expansion position of the add-on characters *Please specify the expansion position of the add-on *1
is displayed on the LCD 304, and the coordinate position using the input ben 301 is input in step 5354-20.

The information consisting of the add-on characters (column) obtained in this way, the size of the characters, the expansion direction, and the expansion position is stored in RAM3.
31b (step 5354-21
) and is output to the main body 1 side in the interrupt routine described above.

As explained above, when inputting add-on characters, a handwritten character string is recognized as an add-on character, so even beginners can easily input add-on characters. Furthermore, this add-on character can be created in the same way even if a character in the character symbol designation area 303 is specified.
Combining these designated areas and handwritten character recognition greatly improves operability. Furthermore, by increasing the number of recognized character types in handwritten character recognition than the number of characters in the character symbol designation area 303 (for example, enabling recognition of hiragana, katakana, and even kanji), characters that are not in the character symbol designation area 303 can be recognized. It is possible to input it as an add-on character. Therefore, it is sufficient to write only the minimum necessary characters and symbols in the character and symbol designation area 303. Therefore, if the operator is having trouble searching for a desired character in the character/symbol designation area, he/she can stop searching for the character and input it by hand into the handwritten character input canister 312. .

In addition, when selecting various image processing in copy mode, handwritten characters are recognized as command input, so there is no need to look at the layout of each key switch, and all the work required for image processing is done using handwritten characters. By recognizing the input, it becomes possible to process it.

II+ -3-5, Explanation of processing of other editors (Fig. 7 (g), (h)) When selecting each of the editors mentioned above,
Although "P" or "A" is input by hand, various processes on the operation panel may be performed by inputting handwritten characters and executing various processes based on the characters.

For example, if C' is input as a character to control the operation panel, the following character string input manually is input to each f! of the operation panel. ! ! It can also be a processing command.

For example, when selecting "A4" size as the transfer paper size, enter the control character "C" followed by "A4", and when setting the number of copies, enter "C" followed by "A4".
C” + the number of copies n, and the enlargement (reduction) rate “
Z” is the command character, and the numeric character that follows it is the magnification factor.

In this way, it becomes possible to control not only the editor section but also the processing of a single work panel using handwritten characters. However, since the characters (including numerical values) following the control character "C" are limited, it is necessary to check the relationship (referred to as grammar) between these character strings.

FIG. 7(g) is a modification of FIG. 7(a).

Hereinafter, the above-mentioned processing will be explained according to this flowchart.

Note that steps 5100 to 5105 in the figure are the same as in FIG. 7(a), so steps 5106 and subsequent steps will be explained here.

In step 5106, it is determined whether the character input in step 5tot is "C". In this judgment, if it is determined that it is a character other than "C", the process returns to step 5100, but if it is "C", step 51
07, command processing is executed.

The processing contents of this command processing 107 will be explained with reference to FIG. 7(h).

First, in step 5107-1, a message is displayed to prompt the user to manually control the operation panel.

In the next step 3107-2, one character is input, and the characters are inputted one by one until the carriage return mark is manually input. In other words, command input is completed by inputting a carriage return mark.

Next, in step 5107-4, a syntax check is performed on the character string input so far. For example, as described above, it is checked whether a character other than a numeric character such as the character "A" is input after the character "Z". As a result, if it is determined that there is a grammar error, a predetermined error message is displayed and the command processing is terminated. Also, if the grammar check is confirmed, proceed to step S107-6.
Output data to main unit 1 side.

The copying apparatus main body 1 side receives this data and processes the zoom magnification, cassette selection, etc.

The command processing in the embodiment described above is the command if
Although the control was for each type i, for example, it is also possible to manually enter multiple command strings in succession. Therefore, in order to clarify the division of each command, a new character string such as "1" Use letters.

For example, when copying is performed with the zoom rate set to 120%, the number of copies per copy set to 11, and the mode for the set area A1 set to "2", the following will occur.

That is, Zl 20 l C1I IAI, Ml: Note that "," means a break between a series of processes.

It is also conceivable to input a series of processes in succession in this manner.

The operations of the editor explained above are performed using R in the editor control section.
New functions can be added by changing the OM 331a and the ROM Boa programs in the main body control section, so it is possible to enhance the functions without changing the appearance of the copying apparatus. Therefore, manufacturing costs can be reduced. Furthermore, since various tasks can be controlled using handwritten characters, the operability is greatly improved.

IV. Copy Mode (FIGS. 8 to 10) Next, various copy modes using the laser 90 will be briefly explained.

Hereinafter, an image obtained in a normal document copying mode will be described as an analog image, and an image obtained by writing binary data with a laser will be described as a digital image.

This embodiment uses a laser 90 to erase unnecessary charges outside the image area, and has the following copy mode.

(2) Area-specific copy mode As explained in the editor section above, there are six copy modes as shown in FIG. 9 for image processing in a set area (area b in FIG. 8).

Note that these various mode numbers correspond to the LEDs explained in the editor.
It corresponds to the number of group 309. For example, when mode 5 is set, the area is output in black and the other areas are output in red. Note that a new halftone dot mode may be provided to form a halftone image in red (or black) for a set area.

■ Simultaneous copying mode of text (digital image) and analog image This mode is used to obtain copies shown in Figures 10(a) and (b). It copies images (text).

FIG. 10(a) shows the "year, month, and date addition mode" in which the LED 135 is lit. At the same time as the normal analog copy operation is performed by starting copying, Shirt Tough 0 is activated by a solenoid (not shown), and the document is added. The edge of the optical image of the original projected onto the photosensitive drum 2o is blocked by the shaded area in FIG. 10(C), and a digital image (year, month, and date) is written in this area using the laser 9o. . Further, FIG. 10(b) shows the "numbered mode" in which the LED 134 is lit, and the image forming procedure is "date addition mode".
This is similar to the case of , and the copy numbers are written in order as digital images. Note that in this date mode, the date is added to the output paper based on a clock (not shown) provided in the main body.

■Digital/analog image multiple copying mode Figure 10 (
In the mode shown in d), multiple copy mode is used to obtain a mixed image of analog and digital images. When a document is set, add-on character input processing is performed using the editor described above, and the copy start key 103 is pressed, the add-on characters (column) input at the specified position are first copied,
Next, perform a normal analog copy (the order may be reversed).6 The above-mentioned modes can be used in combination.

(2) Sequence Next, the sequence will be explained using FIGS. 11 to 29.

The operation when the power is turned on will be explained. FIG. 11 is a time chart when the power is turned on. When the main SW is turned on, the fixing heater and black developer release solenoid are turned on.

Eventually, when the temperature of the fixing device reaches 190° C., the main motor is rotated, and after one second (3), the black developing device pressure solenoid is turned off. As a result, the black developing device once reaches the release position and then approaches the drum.

Thereafter, when the drum rotates once, the main motor is stopped. Furthermore, if the middle plate of the cassette in the paper feed section is lowered when the motor starts rotating in (2), the middle plates of both the upper and lower cassettes begin to rise. This situation is shown in FIG. After the middle plate has finished rising, the main motor is stopped (■).

Figure 12 is a time chart for the rise of the middle plate, and is the same for both the upper and lower rows. When the middle plate rising clutch is turned on, the middle plate begins to rise. Eventually, the output of the middle plate detection sensor becomes 1, and after 0.1 seconds from this point, the middle plate lifting clutch is turned off. - The paper detection sensor is designed to detect the presence of paper by raising the middle plate, and as shown in the figure, if there is paper, the paper is detected before the output of the middle plate detection sensor becomes 1. The positional relationship is such that the sensor output is 1. Further, when the output of the middle plate detection sensor becomes 1, the paper detection sensor is determined, and if it is O, the paper out display is turned on. Further, if no cassette is installed, this operation is not performed.

Next, the copy operation will be explained. FIG. 13(a) is a timing chart showing that when the copy key is pressed, the main motor, high voltage, and original are turned on. Also, the paper feeding operation and developing device pressurizing operation, which will be described later, are started. After the drum has rotated approximately once,
The optical system 4 moves forward and turns on the registration roller tl after the image tip is detected. After that, it will turn off after a period of time depending on the paper size.

After that, when the optical system reaches the inverted position, it moves to reverse. When the optical system 4 returns to the home position, it is stopped and then starts rotating. Then, after the transfer paper is discharged outside the machine, the machine stops. In the case of a color copy, a developer pressurizing operation, which will be described later, is performed. Note that the illumination lamp will be described later.

Next, the pressurizing operation of the developing unit will be explained. Figure 13(b)
is a timing chart when color copying starts with the black developing device set. First, turn ON the black developer release solenoid to release the black developer from the drum. After the release is completed, the color pressure solenoid is turned on and the color developing device is set on the drum 18.

When copying is completed, the color pressure solenoid is turned off and the color developer is released. Incidentally, at this point, the black developing device remains disabled. In order to smoothly replenish color toner, this is always canceled when color copying is completed (it). When starting black or color copying from this state, both developing units have already been canceled. Further, after black copying, the black developing device remains set on the drum.

Next, the paper feeding operation will be explained. FIG. 14 shows a timing chart. If the output of the middle plate detection sensor is O at the start of copying, the middle plate will be raised in the same way as explained in FIG.
NL/, the transfer paper begins to move. After that, when the transfer paper reaches the registration front paper sensor, the registration front paper sensor output becomes 1.
Then, after a predetermined period of time, the paper feed clutch is turned off, and the transfer paper hits the registration roller and stops in a looped state. After that, as the copying operation progresses, the paper feed clutch is turned on again for a predetermined time when the registration roller is turned on.
, reducing the need for paper feeding by registration rollers. On the other hand, the control of the intermediate plate is then performed asynchronously with the copying operation,
When the output of the middle plate detection sensor reaches 1, the middle plate rising clutch is turned ON, and after the output of the middle plate detection sensor reaches 1, it turns 0. Turns off after 1 second. Also, the presence or absence of the cassette is constantly detected, and if the cassette begins to come out, the operation of lifting the middle plate is immediately stopped.

Next, the copying of the first side of double-sided copying in which the number of output sheets is one will be explained. Since the movements of the high voltage, unit, optical system, paper feeding operation, etc. are the same as described above, the movement of the transfer paper after the registration roller 12 is turned on will be explained. FIG. 15 is a timing chart in which the transfer paper is sent to the fixing device by turning on the registration roller 12. After that, when it passes the paper discharge sensor S4,
The output level of the paper discharge sensor S4 changes from 0→1→0. Also, at this time, the later-described lateral registration means is directed to the home position. After a predetermined time, approximately 10m from the rear edge of the transfer paper.
When the paper ejection roller 27 grips the paper at point m, the reverse solenoid is turned on to switch back the transfer paper. At this time, the second transport latch is also turned on. Transfer paper is second
The signal is sent to the m2 sending unit 23, and the output of the second pre-registration sensor S5 becomes 1. After a predetermined period of time, the second transport latch is turned off, and the transfer paper hits the second registration roller, forming a transfer loop of approximately 5 mm, and then stops.

At this time, the reverse solenoid is also turned off. In addition, in the case of a universal cassette that can only feed transfer paper with a length of about 180 mm or more and whose transfer paper size is unknown, the second conveyance section 23 moves from the registration roller 12ON to 1=180-2.
4 (For 24mm, the input of the registration front paper sensor S7 is determined after a distance of 11 between the registration front paper sensor and the registration roller. If there is no paper, the transfer paper is 180mm or less in size, so the switchback operation is performed. It does not enter the machine and is ejected outside the machine.On the other hand, if there is paper, the transfer paper
Since the size is larger than mm, a predetermined operation is performed.

Next, the first side of multiple copying where the number of output sheets is one will be explained. The movement of the transfer paper after the registration roller is turned on will be explained. FIG. 16 is a timing chart showing this. Turn on the flapper solenoid 29 with the registration roller on.
do. Additionally, the lateral registration means (second registration roller 37), which will be described later, begins to be moved to the home position. After the transfer paper has moved by a distance of ml, in the case of manual copying, the pre-registration sensor is checked as in the case of double-sided copying described above. If paper is not detected, the flapper solenoid 29 is turned off and the paper is ejected from the machine. When the transfer paper advances and the output of the paper discharge sensor S4 becomes 1, the second transport latch is turned on. The transfer paper is conveyed to the second fM feeding section 23 and
The second transport latch is turned off after a predetermined time t4 after the output of the pre-registration sensor becomes 1. The transfer paper forms a loop while hitting the second registration roller 37 and stops. Since the curling state and direction of the transfer paper are different from the case of double-sided copying described above, the value of the time t4 from when the output of the second pre-registration sensor S5 becomes 1 until it stops changes.

Next, the copying operation of the second side of a single double-sided/multiple copy will be explained based on FIG. 17.

The transfer paper is already in the second conveyance section and the second registration roller 37
Let's explain it as if it hits a loop, creates a loop, and stops. When copying starts, the second registration roller clutch and double-sided conveyance latch are turned on, and the transfer paper begins to move toward the second registration roller 12. After 0.1 seconds, a lateral registration adjustment operation, which will be described later, is started with the second registration roller holding the transfer paper at a distance of 17 mm from the leading edge thereof. The output of the pre-registration sensor becomes 1 at a time T,
Afterwards, turn off the second registration roller latch and the double-sided transport latch. The transfer paper hits the registration roller, creates a loop, and then stops. After that, the optical system starts moving forward, and it is time to turn on the register rollers. After the transfer paper has been fed approximately 5mm, in the case of double-sided copying, turn on the second registration roller clutch and duplex conveyance latch, and extend the loop by 5mm.
The transfer paper advances with m reduced. On the other hand, in the case of multiple copying, only the double-sided conveyance latch is turned on, the transfer paper is pulled by the register roller 12, the second register roller 37 becomes a load, the transfer paper is conveyed with the loop amount 0, and then the transfer paper is transferred. The paper passes through the fixing roller and is ejected from the machine, completing the copying process. Furthermore, the time tb for determining the loop amount before registration is set differently from that in the case of paper feeding from a cassette because the transfer paper conditions are different.

Next, the operation of setting the second registration roller to the lateral home position will be explained. The drive of the main motor is transmitted to the second registration roller via a spring clutch.
By turning on the lateral registration solenoid, it is possible to swing in the lateral direction by turning on the lateral registration solenoid. A lateral registration home sensor for detecting the position of the second registration roller and a lateral registration paper sensor for detecting the transfer paper placed therebetween are arranged. The second registration roller moves in both directions with respect to the axial direction of the drum, but in order to improve stopping accuracy, it is always stopped by moving in one direction.

That is, as shown in the timing chart of FIG. 18(a), if the output of the horizontal registration home sensor is 1 at first, then 1→
It is stopped when O → 1, and if it was O at first, it is stopped when O → 1.

Next, the lateral registration adjustment operation will be described.

In FIG. 18(C), 37 is a second registration roller, S8 is a horizontal registration paper sensor, and SH is a transfer paper. When the second registration roller 37 is set at the home position, it is stopped at the center of its operating range, and by turning on the horizontal registration solenoid, it swings as shown by the arrows ■-■-■-■ in the figure. . When the second registration roller 37 is stopped at the home position and transfer paper is inserted, depending on the position where the transfer paper enters, the horizontal registration paper sensor may initially detect the paper or not. There is. First, the case where paper is detected will be explained. 1st
As shown in Figure 8 (b), the output of the horizontal registration paper sensor is 1→
Stop when the value changes from 0 to 1. Furthermore, if the transfer paper is extremely biased towards the lateral registration paper sensor side, there is a possibility that the output of the lateral registration paper sensor S8 will always be 1. Even in that case, the following steps should be taken to ensure that the vehicle stops at an appropriate position. That is, as shown in FIG. 18(c), the transfer paper is furthest away when it moves in the direction of the arrow ■ and then the arrow ■.If the output of the horizontal registration paper sensor is 1 at this point, then from there the direction is as shown by the arrow. Since it moves in the direction (2), the output of the lateral registration paper sensor will never become 0, and stopping at that point will be the most appropriate position. Therefore, if the time of one cycle of the horizontal movement of the registration roller is T, then even if the registration roller is moved by 3/4th of a page, that is, the time corresponding to the arrows ■ and ■, if the output of the horizontal registration paper sensor does not become 0, then make it stop.

Next, we will first describe the case when the output of the lateral registration paper sensor S8 is 0, that is, the transfer paper is acting as the lateral registration paper sensor. At this time, as shown in Fig. 18(b) (H), it is stopped when the output of the horizontal registration paper sensor changes from 0 to 1.Also, if the transfer paper comes in at an extremely far distance from the horizontal registration paper sensor, The output of the horizontal registration paper sensor will remain at 0. Even in that case, in order to stop it at the correct position as much as possible, even if you move it by 1/4T for the time corresponding to (i) in Fig. 18, the output of the horizontal registration paper sensor will remain at 0. If the output does not become 1, it is stopped at that point.

Next, the operation of the first side of double-sided copying when an intermediate tray is used will be explained. After copying starts, paper feeding, high pressure,
Since the movement of the optical system is the same as described above, the operation of the second registration roller 37 on the transfer paper will be explained. Figure 19 (
In a), the timing chart shows that the flapper solenoid and intermediate tray flapper are turned on at the same time as the registration roller is turned on. The transfer paper sent out from the first roller passes through the fixing roller and is conveyed directly to the intermediate tray. The intermediate tray entrance sensor can detect the number of transfer sheets stored in the intermediate tray, and after detecting the set number of sheets, the operation is stopped.

Next, the operation of the first side of multiple copying when an intermediate tray is used will be explained. FIG. 19-2 is a time chart showing that the intermediate tray flapper is turned on at the same time as the first rotation, and the transfer paper is conveyed to the intermediate tray to form a filter paper path. The transfer paper is sent out from the registration rollers, and when it passes the paper discharge sensor section, the reverse solenoid is turned on, and the transfer paper is switched back and transported to be stored in the intermediate tray, as in the case of single-sheet double-sided copying described above. . At this time, the intermediate tray entrance sensor counts the number of stored sheets, and when the set number of sheets is detected, the operation is stopped.

Next, the operation of the second side of multiplex and double-sided copying using the intermediate tray will be explained. Transfer paper is already stocked in the intermediate tray, and the transfer paper is set from there to the second conveyance section 23. The situation is shown in FIG. 20. First, the intermediate tray paper feed roller solenoid is turned on. The paper feed roller 5b is lowered by a drive means (not shown), and the topmost transfer paper is brought into contact with the feed roller 57. Thereafter, the intermediate tray feed roller solenoid is turned on, and the transfer paper is sent out to the conveyance path 59 by the intermediate tray feed roller 57. When the leading edge of the transfer paper reaches the intermediate tray exit sensor S21, the intermediate tray paper feed roller solenoid is turned off, and the paper feed roller 56 rises to be out of contact with the transfer paper. At this time, the second transport latch is turned on, and the above-described operation is started to set the second registration roller 37 to the home position. The transfer paper eventually reaches the second pre-registration sensor S5,
After a predetermined period of time, the transfer paper is transferred to the second registration roller 3.
7 is turned on, and the transfer paper is fed toward the registration rollers 12. The subsequent operations are the same as those for the second side of single multiplexing and double-sided copying described above.

In this example, in order to make the process speed variable, the 21st
This will be explained using figures. Using DC motor 18 as the drive source,
The speed control is controlled by PLL control, and the signal from the oscillator 85 is input to the PLL 81 as a reference, and the encoder 82 is connected to the DC motor 18.
The output of the PLL 81 is fed back to the DC motor 18 by the driver 84 via the amplifier 83 so that the feedback signal is synchronized with the base signal feedback signal. are human signals A and B to change the output frequency of the oscillator 85.
The signals A and B are connected to a speed command circuit (not shown).

The laser unit 90 will be explained below based on a block diagram and FIG. 22. Laser unit control information such as the position of the blank area, copy magnification, paper size, photo mode, add-on character code, add-on position, etc. is passed from the control unit 60 to the laser unit controller 700 via the known dual port RAM 703. The laser unit controller 700 stores blank RAM-0-705 and blank RAM-1-706 according to a program in an external EP-ROM 701.
Rewrite the data alternately. The blank area data read controller circuit 716 issues a control signal to the BRANK address counter 715.8-bit shift register 708, and outputs area data to the data control circuit 720.

The blank data, RAM-0-705°RAM-1
-706 each has a capacity to write one line of data. The laser unit controller 700 stores the area data in the blank RAM-0-.
705, a control signal is output to the circuit 704 for address switching and the circuit 707 for BLANK data switching so that data can be read from the other while writing data to one of the blank RAM-1-706.

Explain add-on controls.

The laser section controller 700 reads data from the font ROM 702 according to the add-on character code and sets it in the add-on RAM 723. Laser unit controller 700 writes add-on character printing position designation data to add-on controller 709. Add-on controller 709 reads data from add-on RAM 723 in response to a start signal from laser unit controller 700, and outputs the data to data control circuit 720.

FIG. 25 is a block diagram of the laser optical system. The light emitted from the laser 91 passes through a rotating polygon mirror 93.
The light is reflected on the drum, passes through the imaging lens 801, and is operated on the drum through the reflection mirror 93.

In order to extract the horizontal synchronization signal, a horizontal synchronization signal (hereinafter referred to as BD signal) detection circuit aOO is placed above the laser scanning. The output of the BD detection photodiode is transmitted to the laser section 9.
Manually reduced to 0.

Horizontal synchronization signal (BD scratch signal is pulse width shaping FF710
After the waveform is shaped manually, the pulse period circuit 711,
It is input to the interrupt terminal of the laser controller 700 and the pulse synchronization circuit 2.

The laser controller generates an interrupt every time a BD scratch signal is generated, and stores the blank area data RAM 704, 70.
Write control data to 5.

Further, by counting the number of interrupts such as BD scratch signals, a control signal in the sub-scanning direction is output.

The pulse synchronization circuit i, 7tt outputs a reset pulse to the horizontal synchronization clock (HCLK) generation circuit 713 in synchronization with the rise of the BD scratch signal. Horizontal synchronization clock generation circuit 7
Reference numeral 13 outputs a clock synchronized with the BD scratch signal, and is composed of a reference clock generation circuit and a frequency dividing circuit.

The pulse synchronization circuit 2 uses the horizontal synchronization clock as a reference.
Generates a BD signal synchronization signal (H3YNCZ). Said H
The horizontal line counter 714 is reset by the SYNCZ signal and counts the horizontal synchronization clock HCLK.

The output of the horizontal line counter 714 is input to a timing signal generation circuit, and a timing signal is output at a set count number.

The horizontal timing signals described above are shown in Figures 26 and 27. FIG. 26 shows a reference clock 5 having input signal IBD from the BD detection circuit in the horizontal synchronization clock generation circuit 713.
A rising edge detection pulse H3YNCI is generated by CLK. The above H3YN is applied to the reference clock 5LCK frequency division counter.
A synchronous clock HLCK is generated by applying a reset using the C1 signal. Next, a synchronizing signal H3YNCZ is generated by the HCLK signal, and the horizontal line counter 71
Reset 4.

FIG. 27 shows a timing signal generation circuit 71 in the laser section.
8 is a timing chart. UBSET from the output of horizontal line carantuff 14.

A UBRST signal is created, and an image area signal and a blank signal are generated. Furthermore, the clock used to read data from the add-on RAM 723 is a synchronous clock HCLK. Blank area data RAM0-705.706
The resolution of blank area designation is made variable by using a clock CLKM obtained by dividing HCLK as the data reading clock.

Further, a BDENB signal is generated using the BSET%BRST signal, and if the BD double signal is not input within a predetermined period, a BD error signal is output from the horizontal synchronization signal error detection circuit 712 to the laser section controller 700. When the laser unit controller 700 detects the BD error signal, it transmits the abnormal status to the dual port RAM 703.
The data is passed to the control unit 60 through.

Next, the Dot Erase circuit 719 will be explained using FIGS. 24(a) to (c).
The se circuit is composed of an 8-bit shift register 723, and the HCLK is inputted as a shift clock. As shown in the timing chart of FIG. 24(a), data is loaded into the shift register 723 by the laser unit controller from the rise of the BD double signal to the rise of the image area signal (blank signal).The output of the shift register 723 is It is ANDed with the image area signal (blank signal) and output to the data control circuit 720. FIG. 24(b) is a circuit configuration diagram thereof.

The 8-bit data written by the laser section controller 00 is cyclically transmitted and outputted using a synchronous clock.

FIG. 24(C) is an example of the data configuration according to each Dot Erase pattern, with Do-D7 in the main scanning direction.
A repeating pattern is output.

In the sub-scanning direction, an arbitrary pattern can be generated by loading arbitrary data into the 8-bit shift register 723 every 80 interrupts by the laser section controller.

The data control circuit of the laser section 90 is a gate circuit that controls the data F data from the add-on controller 709, the blank area data B data, and the data from the Dot Erase section 719. It controls data input to the drive circuit 721.

The laser drive circuit 721 modulates the laser using data input from the data control circuit 720.

The laser drive circuit will be explained based on FIG. 23. The laser 750 is driven by a constant current circuit 753 and is configured to always output constant power.

Since the current-power characteristics of the laser 750 fluctuate due to ambient temperature and aging, the laser 750 has a known A
By applying PC control, constant power is always output.

The operation of the APC control circuit will be explained.

A laser unit controller 700 outputs a laser ON signal to cause the laser to emit light. The motor current of the photodiode PD in the laser 750 is input to the current-voltage conversion circuit 754, and a voltage proportional to the power of the laser 750 is extracted. A reference voltage V,,,1 is output from the constant voltage circuit 760.
4 is selected by the analog switch 759 and inputted to the comparators 756 and 757 to set the laser power within a certain range. Comparator 756.757
The output is input to the APC control logic 758, and if it is outside the set range, the up/down counter
By controlling the input data of the D/A converter 752, the input data of the D/A converter 752 is changed. When the laser power is controlled to a constant width, the APC control logic 758
A TOP signal is output, and the up/down counter is held at constant data. When the laser unit controller 700 detects the APCRDY signal, it outputs the APCSTOP signal to the laser unit drive circuit 721 to turn the laser to zero.
The FFL/APC termination status is transmitted to the control unit 60 through the dual port RAM 703.

A laser scanner motor controller 722 controls the polygon mirror 93 to rotate at a predetermined number of rotations. The control circuit uses a known PLL circuit, and starts rotation by applying an external ON signal.
While rotating at a predetermined number of rotations, a known PLL lock signal is used to output a laser scanner motor READY signal to the laser section controller 700. The laser section controller monitors the laser scanner motor READY signal at a predetermined period and controls the laser scanner motor O.
After N, if the laser scanner motor READY signal is not output after a predetermined period of time, a laser scanner motor abnormality signal is transmitted to the control unit 60.

The laser blanking controller 700 has been described using FIG. 22 in the case where blanking is performed using a laser optical system.

Next, a control method using blank RAMs-0 and -1 will be explained using FIG. 28.

In (a) of FIG. 28, the data (P+, +'') and (P2°P2') specifying the area are sent from the control section 60 to the laser section controller through the dual port RAM 703.BLANK of the laser section RAM
O705 and BLANK RAM 1 701i are configured to have a memory for one line with a predetermined area resolution.

When an area as shown in FIG. 28(a) is designated, three line memory data as shown in FIG. 28(b) are used. From the start point of Po to xI, line memory data 0 is read from blank RAM0-705. From xl to Xl', blank RAMl-706
□Read out U-line memory data 1. Between Xl' and Xl, line memory data 1 is read from blank RAM 1-706.a Between Xl' and x2, line memory data 0 is read from blank RAM 0-705.
Blank RAM1-706 between Xl and X2' (7)
Then, line memory data 2 is read out. - From X2' to PE, read line memory data 0 from blank RAM0-705. For writing line memory data, use the blank RAM that has not been read.
is rewritten by the laser unit controller.

When reducing or enlarging, the data P,,P,',P2゜Pi' sent from the control unit 60 is changed to P,x, same as the magnification α.
a, P, xa, Pl'xa.

Pl'×α is calculated and the line memory data 0.
1.2 is changed as shown in FIGS. 28(C) and (d).

Next, the control of the laser section controller will be explained using a flowchart and FIG. 29. In step 5800, area data and magnification data are received from the control unit 60. Next, in step 5801, line memory data is set in blank RAM O from the area data and magnification data.

In step 5802, the control unit 60 waits for an image formation start command to be given. When an image formation start command is given from the control unit 60 in step 5802,
At step 5803, blank RAM O reading is started.

Next, in step 5804, the next line memory data is set in blank RAM 1, and in steps 5805 and 806.
The end of image formation or area data switching is determined. The end of image formation and the switching of area data are determined within the laser unit controller 700 by counting the BD double signal from the start of image formation and using the values as PH, PI', P2 . P2
', Ps is compared with the sub-scanning position information. The reading and writing RAMs are switched in steps 5807 and 808, and timing is similarly waited for in steps 3809 and 810. The above process is repeated until the image formation is completed.

[Effects of the Invention] As described above, according to the present invention, it is possible to recognize characters input by hand, and add character symbols based on the recognition to an output image.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the structure of the copying machine in the embodiment, Fig. 2 is a block diagram of the main body of the copying machine, Fig. 3 is a flowchart showing the processing procedure of the control section in the main body, and Fig. 4 is a diagram of the operation panel. Figure 5 is a diagram to explain the editor, Figure 6 is an internal block diagram of the editor, and Figures 7 (a) to (e) are diagrams to explain the processing contents of the editor control section. Flowchart, FIG. 7(f) is a diagram showing the contents of the message table for the operation of the editor, and FIGS. 7(g) and (h) are diagrams for explaining the processing contents of the editor in other embodiments. Flowchart, FIG. 8 is a diagram showing the relationship between the original image and the output image with area settings, FIG. 9 is a diagram showing the relationship between the image processing mode and mode number in the embodiment, and FIGS. 10 (a) to ( C) is a diagram showing an example of output in character/analog image simultaneous copying mode, Figure 10(d) is a diagram showing an example of add-on character output, Figure 11 is a timing chart when the power is turned on, and Figure 12 is a diagram showing an example of output when the power is turned on. Timing charts, (iH, ii) in Figures 13 (a) and (b) are timing charts for one-time copying, Figure 14 is timing charts for paper feeding, and Figure 15 is first copy processing for one-time multiple copying. FIG. 16 is a timing chart of the first copy process for double-sided copying, FIG. 17 is a timing chart of the second copying process for double-sided/multiple copying, and FIG. 18 (a) (i) , (ii) is a timing chart of the second registration roller, (i), (ii) and (c) of FIG. 18(b) are timing charts and structures of the horizontal registration roller, and FIG. 19(a) 19(b) is a timing chart when the intermediate tray is used in the first copy process of double-sided copying, FIG. 19(b) is a timing chart when the intermediate tray is used in the first copy process of multiplex copying, and FIG. Timing chart when using the intermediate tray in the second copy process for double-sided/multiple copying. Figure 21 is an electric circuit diagram for varying the rotation speed of the main motor. Figure 22 is an electric circuit of the laser unit. 23 is a circuit diagram of the laser drive, and FIGS. 24(a) to 24(C) are diagrams showing the configuration, timing chart, and dot pattern of the tiger erase circuit. Figure 25 is a diagram for explaining the principle of the laser optical system, Figures 26 and 27 are horizontal scanning timing charts of the laser section, and Figures 28 (a) to (d) are for explaining the area control of blank RAM. 29 is a control flowchart of a blank area, and FIG. 30 is an external view of a conventional editor. In the figure, 1... Copying apparatus main body, 2... Image forming section, 3...
...Paper feed section, 4...Optical system, 5...Original\f4 mounting table, 4o...Intermediate tray, 60...Control unit, 60a...
ROM, 60b RAM, 300 Editor, 301 Human pen, 302 Tablet, 303 Character symbol specification area, 304 LC
D, 305-3081. . LED, 309...Mode LED, 310...Memory area LED, 311...Reference mark, 312...
・Hand-held canilia, 331...editor control section, 3
31 a"・ROM, 331 b...RAM, 700
. . . Laser section controller, 702 . . . Font ROM. Agent: Patent attorney Yasunori Otsuka (1 person) o. Fig. 7 Fig. 7 Hanging Fig. 7 Limited tree Koko - Fig. 9 Row 4 Mo Kojin = (
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Claims (2)

[Claims] (1) An image processing device that reads a document image to form an output image, comprising: a reading means for reading the document image; an input area for at least one character; a recognition means for recognizing a character input in the area; 1. An image processing apparatus comprising: an image forming means for adding read characters and symbols to a desired position of a read document image to form an output image. (2) The device according to claim 1, characterized in that there is a coordinate input board for specifying a desired position in the original image, and the input area is provided in a part of the coordinate input board. Image processing device.