JPS62270939A - Original handling device - Google Patents

Abstract

PURPOSE:To improve the operability by a simple constitution, by providing the first original feeding means which is provided with an area designating means which can designate an optional area on an original and feeds a set original to a prescribed position, the second original feeding means for feeding the set original to a prescribed position, and a selecting means for selecting them. CONSTITUTION:A sheet original 2 on an inlet tray 1 is placed with its lower side up. An inlet sensor 3 of an original handling device (DF) for detecting the first original is a reflection type sensor for detecting the tip and the rear end of the sheet original, and feeding rollers 4, 5 are pressed against each other, place the sheet original between them and carry it. A stopper 6 for obstructing a feed of the original onto a platen glass 10 is released by an operation of a DF inlet stopper solenoid 21 and its feed can be executed. The whole surface belt 7 is an endless belt having width of a size for covering the whole surface of the sheet original, the surface has such a sufficient friction coefficient as the original can be slid and carried on the original glass 10 by a frictional force, and the belt is attached to a driving roller 8 and a turn roller 9, and constituted so that the whole surface belt 7 and the driving roller 8 cause no slide.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Technical Field] The present invention relates to a document handling device that feeds a document to a predetermined position.

E. Prior Art] Generally, in an image forming apparatus such as a copying machine, there is a document handling device that feeds the document to a predetermined position such as an exposure position.
It may be added and used.

In recent years, new functions have been added to image forming devices such as copying machines that allow users to specify a certain area of a document and extract or extract only that specified area to form a copy. . At that time, when specifying the area, there are methods in which the XY coordinates are entered manually, and methods in which the region is specified manually using a well-known digitizer device.

However, conventionally, the above-mentioned digitizer device is known to be set above a presser plate on the platen glass of a copying machine, but in this case, the operator manually opens the presser plate after using the digitizer. It was necessary to take the trouble of placing the original on the platen glass again.

Furthermore, when the above-mentioned document handling device is installed in a copying machine, there is no need to install a digitizer device, and the operator is required to place the document on an external stand or other device and place it in a tall position. There was also the problem that the structure was complicated.

[Objective] The present invention has been made in view of the above points, and an object thereof is to provide a document handling device having a simple configuration, improved operability, and a function of specifying an arbitrary area of a document. be.

〔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 apparatuses to which the present invention can be applied. In the figure, reference numeral 1 denotes an entrance tray on which sheet originals are stacked, and sheet originals 2 are placed on the entrance tray 1 with the lower side in the figure facing up. The first document detection DF human sensor 3 is a reflective sensor that detects the leading and trailing edges of the sheet document, and the feed rollers 4 and 5 press against each other to sandwich and convey the sheet document. Reference numeral 6 denotes a stopper that prevents the document from being fed onto the platenka IO, and is released by the operation of the DF input corrost flange solenoid 21 to enable feeding. The full-surface belt 7 is an endless belt with a width large enough to cover the entire surface of the sheet document, and the surface is attached to the document glass IO using frictional force.
It has a sufficient coefficient of friction so that it can be conveyed by sliding on it, and is wrapped around the drive roller 8 and turn roller 9, and is configured to prevent the entire surface belt 7 and the drive roller 8 from slipping. Further, the ejection roller 11 is in pressure contact with the entire surface belt, and conveys the original ejected from the original glass 10 by sandwiching it therein, and when the DF output sensor 13 for detecting the original detects the leading edge of the original using a reflective sensor lever, the entire surface of the original is The belt is stopped and run in reverse, and when the DF output sensor 13 detects the trailing edge of the document, the belt is stopped at a predetermined position.

On the other hand, a well-known digitizer 26 is mounted on the top of the DF of the present invention, and a digitizer cover 27 covering the entire surface of the digitizer is placed on top. Opening/closing detection sensor 2 detects opening/closing of this cover.
8 is attached, and plays an effective role in mode switching, etc., which will be described later. Further, there is a digitizer paper feed port in the upper right corner of the DF that feeds the document on the digitizer, and although it is hidden when the cover is closed, it is exposed when the cover is opened. This digitizer paper feed port has a digitizer entrance detection sensor 22 that detects the document stacked on the digitizer surface, and uses a reflective sensor.

and feed roller 23. 24 press against each other to sandwich and convey the note document.

Reference numeral 25 denotes a stopper that prevents the document from being fed from the digitizer paper feed port onto the platen scrap, and is released by the operation of the digitizer input lost collar solenoid 29 to enable feeding. The document sent out from the digitizer paper feed port by the conveyance rollers 23 and 24 is sent along the guide plate and sent onto the platen crow from the right end of the aforementioned full-surface belt.

Motor 1 drives all the rollers and the entire belt.
A clock disk and a sensor 20 are provided which are driven by a clock disk 9 and which generate clock pulses when rotating, and which control the operation of the DF. After the exposure operation is completed, the discharge roller 11. The document sent out by the full-surface belt 7 has its discharge direction switched by a paper discharge flapper 30, and when a flapper 5L31 that moves it is turned on, the document is discharged to a discharge tray 32 provided on the left side of the DF, and is sequentially loaded. When flapper 5L31 is off, it is reversed and the
Paper ejection roller 15. 16, and are sequentially stacked on the digitizer cover described above.

FIG. 2-1 is a schematic diagram of the digitizer section of the present invention.

This is composed of one each of planar resistors 50 for reading positions in the horizontal direction (X direction) and the vertical direction (Y direction), and a lead pen switch (SW) 51.

The planar resistor 50 is placed not only under the sheet where the original is placed, but also under the clear key 52. Registration key 53. It is also located under keys such as the continuous designation key 54, and as described later, the pen switch
Voltage is output according to the position set by , and read as the area setting value or the above key.

The operator places the document face up on the resistor 50 and sets it so that it is aligned with the upper right corner. Then, two points in the area specified with the pen 5W51, for example, point A, point A', or point B.

By pressing point B', the area A-B'-A'-B'-A is specified, and by pressing the registration key 53 (described later) with the pen SW, the area specification is set.For example, the trimming function or the The image conversion function works and a copy as shown in Figure 2-2 is output.

FIG. 3 is a block diagram showing l)F and the control section of the copying machine. The controller in the figure is a well-known microcomputer (hereinafter referred to as microcomputer), which accesses RAM Ilo by a program stored in an internal ROM. The output signal to the DF section is outputted via a driver, and the above-mentioned loads, namely, the forward rotation and reverse rotation signals of the drive motor, the DF input lost collar SL, the digitizer entrance stop collar SL, and the discharge flapper SL are set to 0N10FF. Input signals include the aforementioned sensors, ie, DF occupancy sensor, DFh output sensor, digitizer occupancy sensor, digitizer opening/closing sensor, and clock pulse signals, which are input via a buffer. In addition, the output signal from the digitizer section is an X/Y application switching signal that switches the voltage applied to the digitizer electrode. The lead pen signal that turns on when the surface is pressed and the analog signal that is output depending on the pressed position are
/There are an X-axis input voltage signal and a Y-axis input voltage signal input in the Y-axis direction. Furthermore, it is configured to output input/output signals to each control section of the copying machine.

FIG. 4 is a detailed flow chart of the digitizer settings of the present invention. As described above, when the user presses the lead pen against the electrode surface of the digitizer to specify an area, the system waits for the lead pen signal to be turned on to detect suppression of the lead pen (step).

When the ON signal is input, the voltage applied to the electrode is immediately changed to
Specify the axis, convert the voltage generated depending on the pressed position, that is, the X-axis input voltage, and convert it to (X-BuF) in the RAM.
(step 102). Next, the applied voltage is switched to Y-axis designation, and the input voltage is similarly stored in (Y-BuF) (step 103). Then, the data of (Y-BuF) is compared with the value of M A X within a predetermined area, and it is determined whether it is within or outside the area (step 104). If it is within the area, write (X-1st) (
Y-1st) and the data imported this time (
X-BuF) (Y-BuF) (X-1st) (Y-1
By shifting to st), the coordinates of the specified area are refreshed and data of two points are always stored.

This way, even if the coordinates are specified sequentially, the latest data will always be available. Then, in step 104 described above, if the key is outside the area, a search is made to see if it is a mode setting key.

In 5tep 106, it is checked whether the data of (X-BuF) at that time is a predetermined clear key voltage value, and flags up to the registration flag to be described later are directly cleared. Also, in step 107, (Y-BuF) is compared with the registered key voltage value, and if they are equal, a registration flag is set. determines whether digitizer area specification is set when copying starts.

Furthermore, in step 108, the data of ('X - B u F ) is compared with the continuous specified key voltage value, and if they are equal, a continuous flag and a registration flag as described later are set.

FIG. 5 is a detailed flowchart of the operation of the DF of the present invention. In particular, in the flow described later, the * mark first detects the opening/closing of the DF digitizer cover, and depending on the opening/closing, determines whether it is in digitizer mode or DF mode (step
p201) In the open state, it becomes digitizer mode and 5te
Proceed to p202. At this point, the digitizer setting is accepted for the first time, and the process waits while processing the digitizer setting sub described above until a registration flag is set to determine completion of the setting. Then, by checking whether a document is set on the digitizer population sensor only after the settings are completed, the document feeding operation is prohibited unless the digitizer settings are performed (step 203).
.

On the other hand, when the digitizer cover is closed at step 5201, the normal DF mode is entered, and the process proceeds to step 5204, where the registration flag described above and the continuity flag described below are cleared.

This provides a clear function that cancels the digitizer settings when the cover is closed, which is equivalent to pressing the clear key described above. Then, in step 205, a document feeding operation is started by checking whether a document is set on the DF human sensor. In other words, the determination in step 201 is such that the original paper feed port is selected with the digitizer cover open, only the digitizer paper feed port is selected, and the cover is closed, and only the DF paper feed port is selected. With these functions, if a user wants to use a digitizer, for example, he or she can smoothly open the cover, set the digitizer, and then feed paper.

Then, paper feeding in each mode is started, and in the digitizer mode, the digitizer paper feeding process and registration process are performed in step 206, and the paper is stopped at a predetermined position on the platen glass from the digitizer opening.
F Paper feed processing and registration processing are performed, and the paper is stopped on the platen glass from the DF opening.

After this stop, the copy operation begins, and of course in the digitizer mode, the area specified copy operation is performed (step
208) Perform normal copy operation in DF mode (ste
p212). Especially in the digitizer mode, the registration flag is cleared once (step 207) and then the area specified copy operation is started.
Since feeding of the next document is permitted after waiting for the registration flag to be set in ep202, in other words, the normal usage is to set the digitizer once for one document. If you forget the original settings,
By not allowing paper to be fed, it is effective to prevent mistakes. Then, in step 5208, while waiting for the end of the copy operation, in step 209, the digitizer setting SuB for the next document is processed until the registration flag is set, and setting of area designation is permitted. This means that the next area specification is allowed during copying, and the functionality has been greatly improved from the previous one, which only accepted area specification in standby mode, and the total area specification copy. Leads to increased efficiency.

Furthermore, if the continuous flag is set by the continuous designation key, the area designation that has been set will continue to be performed for consecutive documents. That is, in 5tep 207, if there is a continuous flag, the registration flag is not blown, and therefore, in 5tep 209, new digitizer setting during copying is prohibited, and in 5tep 202, digitizer setting during standby is also prohibited, so the above-mentioned operation is performed. To clear the continuous flag, close the digitizer cover (step 204) or press the clear key (step 10).
6).

[Effects] In addition to the above, according to the present invention, an arbitrary area on a document can be specified, the document can be fed, and copies can be made without causing unnecessary trouble to the operator with a simple configuration and without causing any malfunction. becomes possible.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the schematic configuration of the DF, Figure 2-1 is a schematic diagram of the digitizer section, Figure 2-2 is a diagram showing the original image and copy image, and Figure 3 is the control unit of the DF and copying machine. 4 is a flowchart for digitizer settings,
FIG. 5 is a flowchart for controlling the operation of the DF. l ・・・・・・・・・・・・・・・ Entrance tray, 4.5 ・・・・・・・・・・・・ Feed roller, 7 ・・・・・・・・・・・・・・・・・・ Full belt, 8 ・・・・・・・・・・・・・・・ Drive roller, lO・・・・・・・・・・・・・・・...
Manuscript glass, 19 ・・・・・・・・・・・・・・・
・・・・ Motor, 26 ・・・・・・・・・・・・
・・・・・・ Digitizer, 51 ・・・・・・・・・
・・・・・・・・・ Lead pen switch.

Claims (2)

[Claims] (1) A first document feeding device that is equipped with an area specifying device that can specify any area on the document and feeds the set document to a predetermined position; and a second document feed device that feeds the set document to the predetermined position. A document handling device comprising: a document feeding device; and a selection device for selecting the first document feeding device or the second document feeding device. (2) In claim 1, the selection means includes an openable and closable cover means for covering the area specifying means, and a detection means for detecting opening/closing of the cover means, said second by detecting the condition.
A document handling device that enables document feeding from a document feeding device, and enables document feeding from the first document feeding device by detecting a closed state of the cover device.