JPH0721658B2 - Document handling device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a document handling device for feeding a document to a predetermined position.

[Prior Art] Generally, in an image forming apparatus such as a copying machine, a document handling device for feeding a document to a predetermined position such as an exposure position may be additionally used.

In recent years, a new function has been added to an image forming apparatus such as a copying machine that forms a copy by designating an area of a part of a document and extracting or extracting only the specified area. . It is known that the XY coordinates are input at the time of specifying the area, or the input is made by a well-known digitizer device.

However, in such a conventional digitizer device, since the area of the next original is specified after the copy of the original image for which the area is specified is completed, it takes a long time to complete a series of copies. .

[Object] The present invention has been made in view of the above points, and an object of the present invention is to provide an original handling apparatus having a simple configuration and improved operability and having a function of designating an arbitrary area of an original. .

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing an embodiment of a document handling device (hereinafter referred to as DF) among copying devices to which the present invention can be applied. In the figure, reference numeral 1 denotes an entrance tray for stacking sheet originals, and the sheet originals 2 on the entrance tray 1 are placed with the lower side in the figure facing up. The first document detection DF entrance sensor 3 is a reflective sensor that detects the leading edge and the trailing edge of the sheet document, and the feed rollers 4 and 5 press the sheet documents to sandwich and transport the sheet document. Reference numeral 6 denotes a stopper that prevents the document from being fed onto the platen glass 10 and is released by the operation of the DF inlet stopper solenoid 21 to enable feeding. The full-face belt 7 is an endless belt having a width large enough to cover the entire surface of the original document, and the surface thereof has a sufficient friction coefficient so that the original can be conveyed by sliding on the original glass 10 by frictional force. It is wound around the drive roller 8 and the turn roller 9 so that the entire surface belt 7 and the drive roller 8 do not slip. Further, the discharge roller 11 is pressed against the entire surface belt, and the original discharged from the original glass 10 is pinched and conveyed, and the DF exit sensor 13 for detecting the original detects the front end of the original by the reflection type sensor and once The belt is stopped and run in reverse, and when the DF exit sensor 13 detects the trailing edge of the document, it is stopped at a predetermined position.

On the other hand, a well-known digitizer 26 is mounted on the upper portion of the DF of the present invention, and a digitizer cover 27 that covers the entire surface of the digitizer is placed on the upper portion. An open / close detection sensor 28 for detecting the opening / closing of the cover is attached, and plays an effective role in mode switching described later. Also, in the upper right part of this DF, there is a digitizer paper feed port for feeding originals on the digitizer, which is hidden when the cover is closed, but it appears when the cover is opened. This digitizer paper feed port is a digitizer entrance detection sensor 22 that detects the documents loaded on the digitizer surface.
And a reflective sensor is used. Then, the feed rollers 23 and 24 are pressed against each other to sandwich and convey the sheet document. Numeral 25 is a stopper that prevents the document from being fed from the digitizer paper feed port onto the platen glass, and is released by the operation of the digitizer inlet stopper solenoid 29 so that the document can be fed. From the digitizer paper feed port to transport rollers 23, 24
The document sent by is sent along the guide plate and is sent on the platen glass from the right end of the above-mentioned full-scale belt.

The motor 19 drives all rollers and all glass.
There is provided a clock disk and a sensor 20 which are driven by, and generate a clock pulse when they rotate, and the operation of the DF is controlled by this clock. After the exposure operation is completed, the original delivered by the ejection roller 11 and the full-face belt 7 is ejected to the ejection tray 32 provided on the left side of the DF when the flapper SL31 that moves the original is switched by the ejection flapper 30. And then loaded sequentially. When the flapper SL31 is off, the paper ejection rollers 15 and 1 are reversed and pressed against each other.
The paper is ejected by 6, and is sequentially loaded on the digitizer cover described above.

FIG. 2-1 is a schematic view of the digitizer unit of the present invention.
This is composed of one sheet-shaped resistor 50 for reading the position in the horizontal direction (X direction) and one for the vertical direction (Y direction) and a lead pen switch (SW) 51. The sheet-like resistor 50 is placed not only under the sheet on which the original is placed, but also under the keys such as the clear key 52, the registration key 53, and the continuous designation key 54, and is set by the pen SW as described later. The voltage is output depending on the position, and it is read as the set value of the area or the above key.

The operator places the manuscript face up on the resistor 50 and sets it according to the upper right corner. Then, by pressing two points in the area specified by the pen SW51, for example, A, A'point or B, B'point, A
The area of -B'-A'-B'-A is designated, and the area designation is set by pressing the registration key 53, which will be described later, with the pen SW. For example, the trimming function and the image conversion function are activated at the time of copying. A copy as shown in FIG. 2 is output.

FIG. 3 is a block diagram showing the control unit of the DF and the copying machine. The controller in the figure is a well-known microcomputer (hereinafter referred to as a microcomputer), and accesses the RAM I / O by a program stored in a ROM provided inside. The output signal to the DF portion is turned on / off through the driver through the above-mentioned respective loads, that is, the forward / reverse rotation signals of the drive motor, the DF inlet stopper SL, the digitizer inlet stopper SL and the discharge flapper SL.
As the input signal, the above-mentioned sensors, that is, the DF inlet sensor, the DF outlet sensor, the digitizer inlet sensor, the digitizer opening / closing sensor, and the clock pulse signal are input via the buffer. Further, as an output signal from the digitizer section, an X / Y application switching signal for switching the voltage applied to the digitizer electrode is "L" for X-axis application and "H" for Y-axis application. As the input signal, the lead pen signal that turns on when the lead pen presses the digitizer electrode surface, and the X-axis input voltage signal and the Y-axis input voltage signal that input the analog signal output depending on the pressed position in the X / Y-axis direction, respectively. is there. Further, it is configured to output an input / output signal to each control unit of the copying machine.

FIG. 4 is a detailed flowchart of the digitizer setting of the present invention. As described above, when the user presses the lead pen against the electrode surface of the digitizer to specify the area, the lead pen signal for detecting the pressing of the lead pen is waited for (step 101). When the ON signal is input,
Immediately set the applied voltage of the electrode to the X-axis, convert the voltage generated according to the pressed position, that is, the X-axis input voltage to AD,
It is stored in (X-BuF) in M (step 102). Next, switch the applied voltage to the Y-axis designation and similarly set the input voltage to (Y-Bu
F) (step 103). Then, the data of (Y-BuF) is compared with the value of MAX in a predetermined area,
It is judged whether it is inside or outside the area (step 104). If within area, area specified data address in RAM (X-2nd)
The contents of (X-1st) and (Y-1st) are shifted to (Y-2nd), and the data (X-BuF) (Y-BuF) captured this time is (X-BuF).
-1st) (Y-1st), the coordinates of the designated area are refreshed, and two points of data are always stored. With this, even if the coordinates are sequentially specified, the latest data is always available. If it is outside the area in step 104, it is searched for a mode setting key. In step 106, it is checked whether the (X-BuF) data at that time is a predetermined clear key voltage value, and the flags are directly cleared up to the registration flag described later. In step 107 (Y
-BuF) compares with the voltage value of the registration key, and if it is equal, the registration flag is set. The area of the digitizer is set by pressing this registration key, and the digitizer is used when the copying machine starts copying with this registration flag. Judges whether the area designation is set.

Further, in step 108, if the (X-BuF) data is compared with the continuous designated key voltage value, a continuous flag and a registration flag, which will be described later, are set.

FIG. 5 is a detailed flowchart of the operation of the DF of the present invention. In the flow, the open / closed detection of the DF digitizer cover is first performed, and depending on the digitizer mode or DF
It is judged whether it is the mode (step 201). In the open state, the digitizer mode is set and the process proceeds to step 202. At this point, the digitizer settings are not accepted until the registration flag is set for accepting the digitizer settings for the first time and judging the completion of the settings.
Wait while processing. Only after the setting is completed, it is checked whether or not the original is set in the digitizer entrance sensor, thereby prohibiting the original feeding operation unless the digitizer is set (step
203).

On the other hand, in step 201, the normal DF mode is set when the digitizer cover is closed, and the process proceeds to step 204 to clear the registration flag described above and the continuous flag described later. This means that a clear function that cancels the setting of the digitizer equivalent to pressing the clear key described above when the cover is closed is provided. And st
In ep205, the document feeding operation is started by checking whether or not the document is set in the DF entrance sensor. The determination in step 201 is made so that only the DF paper feed port is selected when the original paper feed port is in the digitizer cover open state and only the digitizer paper feed port is closed. With these functions, if the user wants to use a digitizer, for example, the work of opening the cover, setting the digitizer, and feeding paper can be smoothly performed.

Then, the paper feed of each mode is started, and the digitizer mode performs the digitizer paper feed process and the resist process of step 206 and stops at the predetermined position on the platen glass from the digitizer port, while the DF mode performs the DF paper feed process and resist of step 211. Process and stop on the platen glass from the DF mouth.

After this stop, the copy operation starts, but of course in the digitizer mode, the area specified copy operation is performed (step20
8) In DF mode, normal copy operation is performed (step 212). Especially in the digitizer mode, the registration flag is cleared once (step 207) and then the area designation copy operation is started, and the next original is allowed to be fed after waiting for the registration flag set in step 202. In other words, the normal use is to set the digitizer once for one document, and to prevent mistakes by not allowing the user to feed the document when the user makes a mistake in setting the next document. effective. And step208
In step 209, the digitizer setting SuB for the next original is processed until the registration flag is set, and the setting of the area designation is permitted while waiting for the end during the copying operation. This means that the next area designation is permitted during copying, and since the area designation can be accepted only in the standby state as in the past, the function is greatly improved and the total efficiency of area designation copying is improved. Leads to. When the continuation flag is set by the continuation designation key, the once-set area designation is continuously performed for consecutive originals. That is, in step 207, if the continuous flag is present, the registration flag is not cleared, so in step 209 the new digitizer setting during copying is prohibited, and in step 202, the digitizer setting during standby is also prohibited, so the above operation is performed. The continuous flag is cleared by closing the digitizer cover (step 204) or pressing the clear key (step 106).

[Effect] As described above, according to the present invention, when it is not set to continuously use the stored area information,
It is possible to specify an area that takes time to set during image formation, and if the stored area information is set to continue to be used, prohibit setting the area information during image formation. Therefore, it is possible to prevent erroneous setting of other area information, and the operability of the document handling apparatus having the area specifying function is improved.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic structure of a DF, FIG. 2-1 is a schematic diagram of a digitizer part, FIG. 2-2 is a diagram showing an original image and a copied image, and FIG. 3 is a control part of a DF and a copying machine. Block diagram showing
Figure 4 is a flow chart for digitizer settings, 5
The figure is a flow chart for controlling DF operation. 1 ... Inlet tray, 4,5 ... Feeding roller, 7 ... Full belt, 8 ... Driving roller, 10 ... Document glass, 19 ... Motor, 26 ... Digitizer, 51 ... Lead pen switch.

Claims (1)

[Claims] 1. A feeding means for feeding an original to a predetermined position, an exposing means for exposing the original fed to the predetermined position by the feeding means, and an area designating means for designating an arbitrary area on the original. And first storage means for storing area information representing the area designated by the area designating means, and image formation of an image exposed by the exposure means according to the area information stored in the first storage means. An image forming unit for performing an instruction, an instruction unit for instructing to continuously use the area information stored in the first storage unit, and a continuous use of the area information stored in the first storage unit. If the second storage means for storing that the instruction by the instruction means is stored, and if it is stored in the second storage means that the area information stored in the first storage means is continuously used During image formation by the image forming means If it is not stored in the second storage means that the area information stored in the first storage means is continuously used, it is prohibited to specify the area information by the area designating means in the image forming means. An original document handling device, comprising: a control unit that controls to allow the region information to be designated by the region designation unit during image formation.