JPS63301363A - Picture processor - Google Patents

Abstract

PURPOSE:To improve the operability of a picture processor by adding the designated or recognized character symbols into an output picture. CONSTITUTION:A control part 60 designates a single character symbol out of a character symbol designating area in a RAM 60b where plural character symbols are written and input these symbols by handwriting via an operation part 100. Then the types of the input character symbols in the character symbol designating area are recognized and adds the designated character symbols or the designated/recognized character symbols into an output picture. Thus various character symbols can be added to an output picture.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application on A-Beam] The present invention relates to an image processing device, and more particularly to an image processing device 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 manual coordinate board such as a digitizer.

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

170 in the figure is a coordinate input board, and 173 is a manual 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 enlarge it and increase the number of character types (for example, add kanji, 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 provides the following I
Consists of t.

That is, in an image processing apparatus that reads a document image and forms an output image, there is provided a character symbol designation means for designating one character symbol in a character symbol designation area in which a plurality of character symbols are written, and a character symbol designating means for designating a character symbol in a character symbol designation area in which a plurality of character symbols are written. an input means for inputting an input, a recognition means for recognizing the type of character symbol in at least the character symbol designation area manually entered by the input means, and a character symbol designated by the former character symbol designation means or designation by the recognition means. and output means for adding and outputting the recognized character symbol when forming the output image.

[Operation] In the configuration of the present invention, either the character symbol specified by the character symbol designation means or the character symbol input by the input means and recognized by the recognition means is added to the output image by the output means. and output it.

[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) Fig. 1 is a schematic configuration diagram of the copying machine according to this embodiment, and the main structure and various sensor positions are shown in S1 to S24 in the figure. Ta0
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. Reference numeral 3 denotes a paper feeding section for supplying transfer paper SH into the machine, which includes a cassette 9 that can be detachably attached to the main body, their paper feeding rollers 10 and 11, and sensors S9 to S12. It consists of S22.23. 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 paper feeding section which will be described later, and 4o 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 configuration of the electrical control system (Fig. 2) Fig. 2 is a block diagram of the electrical control system. 101 is the main switch, D
CP is a DC power supply that supplies power to the control unit 60, etc., and S is a first
Sensors shown in the figure, 100 is the operation unit, 61.62 is A
A control unit that controls the C load, a lamp 24, a heater 21,
22 is an AC load, 63 is a motor control section that controls the main motor 18 and the optical motor 19, and HvT is a high voltage generator that supplies high voltage to the electric counters 13, 15, 18 and the developing device 7.8. 66 is a load such as a solenoid, clutch, fan, etc.; 67 is a document processing device; 68 is a sorter; 180 is a coordinate reading device (editor); and 80 is a buzzer. still,
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. When the fixing roller reaches this temperature, the main drive motor 18 is energized for a certain period of time to drive the photosensitive drum 20, the fixing device 25, etc., and the rollers in the fixing device 25 are heated uniformly. temperature (weight release rotation). Thereafter, the main motor 18 is stopped and the copying is possible (standby state). Here, the main motor 18 includes a photosensitive drum 20, a fixing device 25, a developing device 7.
8 and various transfer paper conveyance rollers. and,
When a copy command is input from the operation unit 100, a copy operation starts. Further, the main motor 18 is connected to the control unit 6
The rotation speed can be switched to two stages by a command from o, 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 from the IVT to the primary charger 13 (high voltage supply device) to uniformly charge the photosensitive drum 20. The 0th exposure lamp 24 is turned on and the optical motor 19 is driven, and the original is placed on the document table 5. The placed original is exposed and scanned 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 to this latent image by the developing device 7 or 8 (
After the toner is transferred to the transfer paper SH by the transfer charger 15, it is separated from the photosensitive drum 20 by the separation charger 16.Then, the residual toner remaining on the photosensitive drum 20 is removed by the cleaner 6. It is collected and the static electricity is uniformly removed using the erase lamp 28. Thereafter, this copy cycle is repeated.

Furthermore, when an original is being manipulated and projected onto the photosensitive drum 20 (it does not matter even after projection), the laser 91, the polygon mirror 93, the 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.
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. I have to. Pressurization (abutment) of these developing devices 7.8 to the drum 20 and release thereof are achieved by turning on/off solenoids 30.31 provided in the respective developing devices. 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 HVT.

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. In order to cope with this change, the conditions of the high voltage applied to the transfer charger 15 and the separation charger 16 are made different between the first side and both sides or the second side during multiple copying. These developing biases, transfer, and separation high voltage values are controlled by commands from the control section 60.

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 a home position sensor of the optical system, 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, 39 and Sit are upper and lower paper sensors, S10 and S12 are upper and lower glue position detection sensors, respectively, and 522. S23
are the 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 S22 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 S10.
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.

Further, when the number of transfer sheets in the cassette decreases during continuous copying operation and the top surface of the transfer sheet SH falls below a predetermined position, the clutch is similarly raised 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, the optical system 4 is moved in order to create an appropriate loop and align the leading edge of the image formed on the drum 20.
A timing signal (sensor S2) is used to drive the registration rollers 12, align the leading edges, and send 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, and then a paper discharge sensor S4 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 feed section 23, after the paper is detected by the second pre-registration sensor S5, the paper is aligned in the lateral direction by a transfer paper edge detection sensor S6, a lateral registration sensor S8, and a solenoid for lateral registration alignment. Next, according to an instruction from the control section 60, the second registration roller 37 sends out the image to the registration roller 12 section again. 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
After the rear end of the transfer sheet passes through the flapper 29, 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 56, 57 for the second time, 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 40 is also used. Which of these is selected is not determined by an operator's instruction, but is determined by the control unit 60 of the main body 1 in this 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. Further, in the latter system, it is possible to stock a plurality of sheets of paper, but the horizontal alignment can only be performed at a predetermined fixed size. The transfer paper control process during double-sided/multiple copying will be explained with reference to the flowchart of FIG.

When a copy operation is started in response to a copy command, first, in step 5270-1, it is determined whether to perform double-sided/multiple copying of the same original, that is, without exchanging the original. In the case of a mode such as copying the part in black, the judgment 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 still goes to step 3270-5, but
If the number of copies is less than that, step 5270-8
At this time, if the number of copies is 30 or more, the number of copies may be set to 30 and the process proceeds to step 5270-8.

Now, in step 5270-5, one sheet is first copied, and the transfer sheet 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 S2
In step 0-7, it is determined whether the number of copies has reached a set value. If it is determined that the number of copies has not yet 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 goes to step 5270-8, and the transfer paper on which the first copy was made is not 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, in step 5270-17, set the number of copies to 1", make the first copy, and set it in the second paper feed section (step 3270-18). Next, after replacing the original , operate the copy start key again (step 5270-1
9) After receiving this instruction, the transfer paper in the second paper feed section
The copy is processed for the second time and is ejected from the machine.

Also, if the determination at step 5270-10 is YES, the determination at the next step 3270-11 (the number of copies is “
1" or not) 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 sheets are sent to the second paper feed section 23 to be re-fed, and when a fixed size and a large number of sheets are to be copied, the sheets are stacked on the -H intermediate tray 40 and then sent to the second paper feed section 23 to be re-fed.

Also, these 2f! The operator does not select which of the II 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. Further, in the case of standard multiple copying, it is possible to perform copying one sheet at a time using the second paper feed without using an intermediate tray. Furthermore, it determines the inconvenience of the transfer paper (such as the size is too small),
Unnecessary trouble can be avoided by ejecting the data 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 figure, 101 is a power switch that controls power supply to the copying machine, and 102 is a reset/stop key that 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, developer 7.8 is selected.
The contact with one of the photosensitive drums 20 is switched. 10
5 manually inputs the number of copies etc. using the numeric keypad. 106 is a key for selecting a cassette (transfer paper size selection), 107
108 is a copy density adjustment key, and 108 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 character keys specify continuous copying, which divides the copying area of the glass 5 into left and right halves and automatically makes two copies. Keys 116 to 118 select double-sided copying mode. Keys 119 and 120 control 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,
135 is a display that lights up in 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, 142
Reference numeral 143 indicates each mode display for duplex copying, and 143 indicates a display for displaying sort mode and group mode when a sorter is used.

l! ! , Editor III-1, Explanation 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)
, a human pen 301 for specifying any position on the tablet 302, a message display LCD 304, and mode display LEDs 305 to 310.

This Ben 301 has a built-in spring-loaded switch that turns on when the pen tip is pressed and turns 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 input mode, that is, a setting is made to perform masking, trimming processing, output color selection, etc. for a desired area in the document image specified by the manual bender 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 human input sensor 301. However, if the area is not limited to a rectangular area, an arbitrary area can be specified using the input sensor 301. A closed interval may be set by tracing. ■, 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. Canilia 3 with character symbols
Regarding 03, when the mode is entered, input is performed by specifying those characters and symbols one by one with the manual pen 301, but in the handwriting input area 312, the handwritten characters input with the manual pen 301 are input. This is achieved by recognizing characters based on their strokes. The character/symbol information input into any of these areas is displayed on a message display liquid crystal (LCD) 304. Note that all of the character/symbol information specified or input in these areas 303 and 312 is not used for add-on character input processing, but is also used when selecting various processes at each processing stage of the editor 300. . Although the explanation is confusing, the expansion position of the input add-on character, its expansion direction, and the size of the expansion character are as follows: In the example, one character is 4×4m1I+ and 8
x 8 mm) is achieved by recognizing handwritten characters on the input ben 301. The LED 3 indicates that the character size and development direction have been specified.
05 to 308 are lit to notify the operator.

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

III-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 Ben 301 is on the top of the tablet human power side 302,
The coordinate reading unit 330 samples the input coordinate position by electromagnetic induction. The accuracy of this coordinate input is 10 lines/mm, and the sampling period of the coordinate points is Ioms.
(100 points/second). The editor control unit 331 inputs the coordinate data from the coordinate reading unit 330 and the ON/OFF signal of the Ben 301, and recognizes the input coordinates and specified (manually) specified character symbols. Furthermore, it controls the image conversion mode, font size, and font direction display LEDs, and also controls the L for displaying messages and the add-on data.
It controls the CD 304.

The LCD 304 displays an area designation mode (image conversion mode). The LCD 304 indicates the specified area, and in this embodiment, 3f! It has a Class 1 indication.

III-3, Explanation of editor operation processing III-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 O(
(see FIG. 7(f)) is displayed on the LCD. Incidentally, please input the message Or*editor commands P and A*1, in which "P" means area setting manual mode (■) and "A" means add-on character input mode (■). Next step 5
350-3, select and specify this “P” or “A” from the character/symbol designation area 303, or use the manual pen 301 in 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 process moves to step 5350-5 and the area designation mode (2) is executed. If a character other than "P" has been input manually, control moves to step 3350-6, where it is determined whether the input information is 'A' or not. If it is determined that information other than the characters specified in message 0 has been input, no processing is performed and the process returns to step 3350-2; however, if not, that is, "A" is input. If so, 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, a reset request is issued from the main body 1. When the signal is received, the editor 300 is reset once (step 5350-
2), but otherwise returns to the interrupt position.

III-3-2, Explanation of character recognition (Fig. 7 (C)) Now, when inputting the aforementioned “P” or “A” into the handwritten character input area 312 using the manual pen 301, the input character is It is necessary to recognize this. Further, even when inputting add-on characters by hand, it is necessary to recognize the input characters. The following description describes the handwritten character recognition process.

The character recognition in this embodiment is online handwritten character recognition, and the handwritten character input canister 312 has an input ben 30.
1 is used to sequentially recognize handwriting input.

The handwriting entered into 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
This is done at short time intervals of about 0 points/sec. For redundant sample points in a straight line part of a character or when it is 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 processing is recognition processing for one character, and when a character string consisting of a plurality of characters is manually generated, the following processing is executed one character at a time.

First, in step 5352-2, the screen shown in FIG.
Message 1r*Please enter one character in the character input area*1 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, the input coordinates and pen on/off information are imported (step 5352-4). Next, in step 5352-5, a stroke vector is extracted from the input handwriting. Step 5
In step 352-6, 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), followed by the next step S352.
If it is determined in step 5352-8 that the matching result is a character that is not in the dictionary, message 2 is displayed on the LCD 304 in step 5352-9 and an instruction is given to input it again.

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. *1 is read and displayed on the LCD 304. Then, until the pen is turned off in step 3353-3.
You will have to wait, but when it is turned on (if coordinates have been input), the coordinates of the first point are entered manually in step 3353-4. Thereafter, the coordinates of the second point are manually determined 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 to prompt the user to input a - character, and in step 5353-8, 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 3353-15), step 5353-10 is executed again. If numeric input from 1 to 9 is recognized, step 3353-16
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 input character is something other than "M", the process goes to step 3353-11, and if the input 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 entered manually in the corresponding memory area is stored in the RAM 331, and one corresponding LCD 304 is turned on in step 5353-14. That is, the LED corresponding to the storage location of the set area and its mode will be lit. Furthermore, if the manually entered character in step 5353-11 is "E", the process goes through step 5353-9.11.12 and ends 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.

III-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 manually enter add-on characters* is read and displayed on the LCD 304.Next, in step 5354-3, the manual pen 301 is read.
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 3354-6 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 it, input the add-on character.

Further, if it is determined that the input coordinate position is within the handwritten character entry canister 312, the control returns to step 5354-6 to execute the - character input. Note that this character input process executes the character recognition process in III-3-2 described above. Now, the characters input and recognized by this add-on character input process are sequentially displayed on the LCD 304 until the mark character that means carriage return is input, but the carriage return mark character is input by this add-on character input process. 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 inputting the character size is displayed on the LCD 304. The operator looks at this display and then specifies the size of the characters (in the example, it is possible to print 4mm square characters and 8[11m square characters) (step 5354-10), but the input characters are " 4
If it is not "but 8", the process moves to step 5354-12 and sends message 7r*Character size specification is 8h)4
*J is displayed on the LCD 304, and the process returns to step 5354-10. Also, the input characters are 4
” or “8N, step 5354-1
3. In order to notify that it has been recognized, the LC
Turn on D304 or 308. Next, the control moves to step 5354-14, where 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 is to be input for the input add-on character. The operator looks at this display and inputs the desired direction by hand using the input pen 301 (step 5).
354-15). If the characters entered are different from those specified, step 5354-16 through step 5
The program moves to step 354-17 and displays J message 9r* The direction of the character is recognized as ↑ or →*1, and then returns to step 5354-15. 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 5354-1
Moving on to step 9, message 10r prompting you to input the expansion position of the add-on characters *Please specify the expansion position of the add-on*
” 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 options in copy mode, handwritten characters are recognized as command input, so you no longer have to look at the layout of each key switch, and all work required for image processing is done using handwritten characters. By recognizing the input, it becomes possible to process it.

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

For example, “C” is the character to control the operation panel.
If , the following character strings may be used as various processing commands on the operation panel.

For example, when selecting "A4" 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"+number of copies n, and further for the enlargement (reduction) ratio"
2” is the command character, and the following numeric character is the magnification factor.

In this way, it becomes possible to control not only the editor section but also the processing of the operation 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 here step 5106 is
The following will be explained.

In step 5106, it is determined whether the character entered manually in step 5101 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 3107-1, a message prompting the user to input characters to control the operation panel is displayed.

In the next step 5107-2, one character is input, but the - character is input one by one until the carriage return mark is input manually.In other words, manual termination of the command is done by inputting the carriage return mark. become.

Next, in step S107-4, a syntax check is performed on the character string input so far. For example, as described above, it is checked whether a non-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, move to step 3107-6,
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 above embodiment is the command 1fi.
Although the control was for each type of command, for example, it is possible to input multiple command character strings in succession, so in order to clearly distinguish between each command, "1"
Use new characters such as

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

That is, Z1201C111AI, Ml ; In addition, "," means a break in a series of processing It is.

It is also conceivable to continue the series of processes in this manner manually.

The operations of the editor explained above are performed using R in the editor control section.
OM331 a and main body! l1 (ROM in J r4 section
Since new functions can be added by changing the program of the copying apparatus 60a, 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 input 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.
0 corresponding 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.

■2 character (digital image), analog image simultaneous copying mode This mode is for copying as shown in Figures 10(a) and (b).The digital image is placed in the prescribed area shown in the shaded area in Figure 10(C). (character) is copied.

FIG. 10(a) shows the "year, month, and date addition mode" in which LE0135 is lit, and at the same time as a normal analog copy operation is performed by starting the copy, the shutter 70 is operated by a solenoid (not shown), and the original is The end portion of the original optical image projected onto the photosensitive drum 20, which is the shaded area in FIG. 10(C), is blocked, and a digital image (year, month, and date) is written in this area using a laser 90. FIG. 10(b) shows the "numbered mode" in which the LED 134 is lit, and the image forming procedure is the same as in the "year, month, and date addition mode", in which copy numbers are sequentially written as digital images. It is. 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 polygon copy 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, the add-on characters are manually processed using the editor mentioned above, and the copy start key 103 is pressed, the add-on characters (column) input at the specified position are first copied,
Next, make a normal analog copy (the order can be reversed).

Each of the modes described above 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 the black developer release knob 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 0, 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 the registration roller is turned on t1 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 inversion position, it moves backward. 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 device 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 (If). When starting black or color copying from this state, both developing devices are already released.

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 0 at the start of copying, the middle plate is raised in the same way as explained in FIG. 12. The paper feed clutch is turned off after the middle plate lift is completed.
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. Afterwards, as the copying operation progresses, the paper feed clutch is turned ON/OFF again for a predetermined period of 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 where 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. At this time, the lateral registration means, which will be described later, is moved 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
It is sent to the transport section 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.
Make a loop of about 15mm and stop.

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 41=180-
24 (24mm is the distance between the registration front paper sensor and the registration roller 1!L).Registration front paper sensor S7
If there is no paper, the transfer paper is 180m.
Since the size is less than m, it is ejected from the machine without entering the switchback operation. On the other hand, if you have paper, transfer paper is 1
Since the size is 80 mm or more, 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. Transfer paper is distance 11! After moving by i sentence, 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. A predetermined time t elapses after the transfer paper is conveyed to the second conveyance section 23 and the output of the second pre-registration sensor becomes 1.
4, the 212th feed latch is turned off. The transfer paper forms a loop while hitting the second registration roller 37 and stops. Since the curl state and direction of the transfer paper are different from the case of double-sided copying described above, the second pre-registration sensor S5
The time t4 from when the output becomes 1 until it stops changes in value.

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
The following explanation will be given assuming that the copying paper is stopped while forming a loop.When copying starts, the second registration roller clutch and both-side conveyance latch are turned on, and the transfer paper begins to move toward the second registration roller 12. After 0.1 seconds, the 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 and the time T elapses.
After b, turn off the second registration roller latch and 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 5 mm, in the case of double-sided copying, turn on the second registration roller clutch and double-sided conveyance latch, and rotate the loop 5 mm.
The transfer paper advances with the amount reduced by mm. 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, and the transfer paper is conveyed with the loop amount O. Thereafter, the transfer paper passes through a fixing roller and is ejected from the machine, completing the copying process. Furthermore, the time t 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 it changes from 0 to 1, and if it is initially 0, it is stopped when it changes from 0 to 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 arrow ■→■→■→■ in the figure. . When the second registration roller 37 is stopped at the home position and transfer paper is inserted, the horizontal registration paper sensor may initially detect the paper or not, depending on the position from which the transfer paper comes. There are cases. 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 comes in extremely biased toward the side of the horizontal registration paper sensor, there is a possibility that the output of the horizontal 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), when the transfer paper moves in the direction of the arrow ■ and then the arrow ■, it is the time when the transfer paper leaves the furthest.If the output of the horizontal registration paper sensor is 1 at this point, then the direction from there will be as shown by the arrow. Since it moves in the direction (2), the output of the horizontal registration paper sensor never becomes 0. Also, stopping at that point is the most appropriate position. Therefore, if the time of one cycle of the horizontal movement of the registration roller is T, then even if it is moved for a time corresponding to 3/4T, that is, arrows ■ and ■, the output of the horizontal registration paper sensor does not become 0. 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, the process is stopped when the output of the horizontal registration paper sensor changes from 0 to 1, as shown in Figure 1(b)(ii). Furthermore, 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 O. Even in that case, in order to stop at the appropriate position as much as possible, the time corresponding to (L) in Fig. 18 is 1/4T.
If the output of the horizontal registration paper sensor does not become 1 even after pushing the paper, the sensor 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 movement of the transfer paper of the first Luzistro roller will be explained. Figure 19 (a
) turns on the flapper solenoid and intermediate tray flapper at the same time as the registration roller turns on according to the timing chart.

The transfer paper sent out from the second 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 roller is turned on to form a paper bus for transporting the transfer paper to the intermediate tray. 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 moves to the second 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 a driver 84 via an amplifier 83 so that the reference signal and the feedback signal are synchronized, and when changing the speed, an oscillator is used. The output frequency of 85 is controlled by input signals A and B, and 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 and 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 sufficient to store one line of data. The laser unit controller 700 stores the area data in the blank RAM-0-.
705, outputs a control signal to address switching circuit 704 and BLAN data switching circuit 707 so that data can be read from the other while data is being written to one of 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. The add-on controller 709 reads data from the add-on RAM 723 in response to a start signal from the laser section controller 700 and outputs the data to the 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 800 is arranged above the laser scanning. The output of the BD detection photodiode is transmitted to the laser section 9.
Input to 0.

Horizontal synchronization signal (BD scratch signal is pulse width shaping FF710
After being input to the pulse period circuit 711 and waveform-shaped, 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 1, 711 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 (HSYNCZ). Said H
The horizontal line counter 714 is reset by the 3YNCZ signal and counts the horizontal synchronization clock (CL).

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 HSYNCI is generated by CLK. The reference clock 5LCK frequency dividing counter (above) (SY
A synchronous clock HLCK is generated by applying a reset using the MCI signal. Next, by the HCLK signal,
Generates synchronization signal HSYNCZ to horizontal line counter 7
Reset 14.

FIG. 27 shows a timing signal generation circuit 71 in the laser section.
8 is a timing chart. horizontal line counter 7
UBSET from the output of 14.

Creates a UBR3T signal and generates an image area signal and a blank signal. 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 and BR3T signals, and if a BD flaw 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.
It is passed to the control unit 60 through.

Next, the Dot Erase circuit 719 will be explained using FIGS. 24(a) to 24(c). Dot Eras
The e 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 scratch 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 written 8-bit data is cyclically transmitted and outputted by the laser section controller 700 using a synchronous clock.

FIG. 24(C) is an example of the data configuration according to each Dot Erase pattern, with DOND7 in the main scanning direction.
A repeating pattern is output.

In the sub-scanning direction, any pattern can be generated by loading arbitrary data into the 8-bit shift register 723 by the laser unit controller every time the BD interrupt occurs.

The data control circuit of the laser unit 90 is a gate circuit that controls data F data from the add-on controller, F09, blank area data B data, and data from the Dot Erase unit 719, and is controlled by control signals from the laser unit controller 700. It controls data input to the laser drive circuit 721.

The laser drive circuit 721 modulates the laser using data manually 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. A reference voltage Vr*fl is output from a constant voltage circuit 760 that inputs the motor current of the photodiode PD in the laser 750 to a current-voltage conversion circuit 754 and extracts a voltage proportional to the power of the laser 750.
By selecting .degree. to 4 using an analog switch 759 and inputting it to comparators 756 and 757, the laser power is set within a certain range. Comparator 756, F5
The output of 7 is input to the APC control logic 758, and if it is outside the set range, it is input to the up/down counter 75.
1, 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 75B outputs a 5TOP signal, and the up/down counter is held at constant data. Laser part chondral rough 00
When detecting the APCRDY signal, it outputs the APC3TOP signal to the laser section drive circuit 721, turns the laser to 0FFL, and transmits the APC end status to the control section 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 rotation is started by applying No. 3 from the outside, and while it is rotating at a predetermined number of revolutions
Using the L rotor signal, the laser section controller 700 outputs a laser scanner motor READY signal. The laser unit controller monitors the laser scanner motor READY signal at a predetermined period, and turns on the laser scanner motor READY signal after a predetermined period of time after turning on the laser scanner motor.
If the Y signal is not output, 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.

FIG. 28(a) shows data (pt, pt'), (P2°22') specified by the control unit 60.
) is sent to the laser section controller through the dual port RAM 703. BLANK RA in the laser section
The M O 705 and the BLANK RAM 170B 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 starting point of Po to XI, line memory data O is read from blank RAM0-705. From xl to XI', blank RAMl-70
Line memory data 1 is read from 6. Between XI' and x2, line memory data 1 is read from blank RAM 1-706. *Between XI' and X2,
Line memory data O is stored in blank RAM 0-705, and blank RAM 1-70 is stored between X2 and X2'.
6, line memory data 2 is read out. From x2' to pc, line memory data 0 is read 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 PI r p, '+ p, +P2 sent from the control unit 60 is the same as the magnification α.
'p, xa, P, X(z, p, 'xa.

P2'×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 3805 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 signal from the start of image formation and using the values as P+, Pt', P2, . P2
', is compared with the sub-scanning position information of Ps,
Read and write RAM in steps 5807 and 808
The process is repeated until the image formation is completed in steps 5809 and 810 in which the timing is similarly waited.

[Effects of the Invention] As explained above, according to the present invention, character symbols obtained by specifying characters in a character symbol designation area or by recognizing character symbols input by hand are added to an output image. This allows for improved operability.

[Brief explanation of the drawing]

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 i7 (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, FIG. 7(g) and (h) are flowcharts for explaining the processing contents of the editor in other embodiments. , FIG. 8 is a diagram showing the relationship between the original image and the output image in which the area has been set, FIG. 9 is a diagram showing the relationship between the image processing mode and the mode number in the embodiment, and FIGS. 10(a) to (e) ) 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 the timing of rising in the middle. Charts, (i) and (if) 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 IA 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 copy process for duplex/multiple copying, and Fig. 18 (a) (1) ), (ii) are timing charts of the second registration roller, (i), (if) and (C) of FIG. 18(b) are timing charts and structure diagrams of the horizontal registration rollers, and FIG. 19(a) ) 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. Figure 21 is the timing chart when using the intermediate tray in the second copy process for double-sided/multiple copying, Figure 21 is the electrical circuit diagram for varying the rotational speed of the main motor, Figure 22 is the electrical circuit diagram of the laser section. 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...Document mounting table, 4
0... Intermediate tray, 60... Control unit, 60a...
ROM. 60b...RAM, 300...editor, 301.
...Input pen, 302...Tablet, 303...
Character symbol designation area, 304...LCD, 305-3
08...LED, 309...Mode LED, 310
...Memory area LED, 311...Reference mark,
312...Handwritten entry canilia, 331...Editor control unit, 331 a...ROM, 33 l b...
FtAM, 700--Laser section controller, 70
2... Font ROM. Fig. 2 Fig. 7 Cancer 7 Fig. 0' - Fig. 8 Fig. 9
) (C) (d) Funeral diagram 10
■ Fig. 12 and 2 (b) Fig. 13), 10-RA ON Fig. 15 Fig. 16 Fig. 17 Old drawing (0) Fig. 18 (b) ro:===::ko■ Funeral figure 19 (0) Fuu r ha 1 no b no paku 1 Fig. 20 Fig. 21 ρθ ~ ρri (C) Fig. 24 Fig. 25

Claims (2)

[Claims] (1) In an image processing device that reads a document image and forms an output image, one of the character symbol designation areas in which multiple character symbols are written.
a character symbol designation means for designating one character symbol; an input means for inputting a character symbol by hand; and a recognition means for recognizing the type of character symbol inputted by the input means at least within the character symbol designation area. , an output means for adding and outputting the character symbol designated by the character symbol designation means or the character symbol designated and recognized by the recognition means when forming the output image. Device. (2) There is a coordinate input board for specifying a desired position in the original image, and the character symbol designation area and handwritten character input area are both within the coordinate input board, and the first 2. The image processing apparatus according to claim 1, wherein either the character symbol designation means or the recognition means is energized based on the coordinate position of the dot.