JPS60263965A - Image processor - Google Patents

Abstract

PURPOSE:To allow an operator to confirm magnification and size prior to image formation by displaying detected original size, and sending a display command for displaying the determination state of an automatic paper feed mode and an automatic variable power mode determined according to the detected size from a confirmation display command means. CONSTITUTION:When the operator presses an original size detection start key before pressing a copy key 56, a prescanning or automatic original feeling device 54 is operated as well as in normal operation to detect and display the original size on a composite display part, and up to setting operation in automatic magnification variation mode or automatic paper feed mode for the original size is performed to check a copy mode state. In such a case, image formation is not performed without transfer operation. Therefore, the operator can confirm the selection state of cassette size in automatic variable power mode and the setting state of magnification in automatic paper feed mode prior to the image formation.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention displays the document size detected by a document size detection means, and also displays an automatic paper feeding mode and an automatic magnification mode that are determined according to the document size. The present invention relates to an image processing apparatus that displays a status without performing image formation.

[Prior art and its problems]

Conventionally, some devices of this type are equipped with means for automatically selecting a paper cassette or automatically setting the transfer magnification according to the document size detected by the document size detection means, allowing the operator to transfer any size of document. The configuration is such that mode settings can be reduced by selecting either the paper feed cassette containing paper or the transfer magnification.

However, in order to confirm the match between the document size detected by the document size detection means and the paper feed cassette or transfer magnification selected by the operator, an image forming operation must always be performed. There were drawbacks such as the need to perform a trial copy.

[Purpose of the invention]

This invention was made to eliminate the above-mentioned drawbacks, and it displays the document size detected by the document size detection means, and also controls the automatic paper feeding mode and automatic magnification mode that are determined according to the document size. By providing a confirmation display command means that sends a display command to display the decision status, the document size can be displayed even in situations where the operator selects automatic paper feeding or automatic magnification and does not need to be aware of the document size. It is an object of the present invention to provide an image processing apparatus that allows an operator to check the setting state of magnification in automatic paper feeding mode or the selection state of cassette size in automatic magnification mode before image formation. The present invention will be explained below with reference to the drawings.

〔Example〕

FIG. 1 is a perspective view showing the appearance of an image processing apparatus according to an embodiment of the present invention, in which numeral 1 denotes an operation panel, showing a plurality of keys for inputting an operator's intention and the state of the apparatus.

It consists of a display section that displays the mode, etc.

Reference numeral 2 denotes a document table glass on which an object to be copied is placed. Reference numeral 3 denotes a document pressure plate, and the portion that touches the document platen glass 2 has a mirror surface in order to detect the document size in the closed state. The image of the object to be copied is separated into an optical path that passes through a mirror and a lens (not shown) and forms an image on a drum-E (not shown), and an optical path that forms an image on a line sensor (CCD, etc.) to be described later that detects the document size. be guided by

FIG. 2 is a cut-out diagram of the display portion of the operation panel 1 shown in FIG. 1 that displays the original size and cassette size.
Reference numeral 1 denotes a display group indicating the original size, which constitutes the original size display means of the present invention, and can selectively light up the original size determined by the original detecting means.

Reference numeral 22 is a display group showing the cassette sizes stored in the device, and a plurality of all the cassette sizes owned can be selected and lit. Also, the frame line attached to each size indicates the selected cassette size.
One set of cassette sizes selected from a group of cassette sizes in which a plurality of cassette sizes are lit is lit. Reference numeral 23 denotes a composite display section that simultaneously displays the document size displayed by the display group 21 and the cassette size displayed by the display group 22, and visually displays the size and orientation (vertical/horizontal) of the cassette information and document information. do.

FIG. 3 is a schematic cross-sectional view of the interior of FIG. 1, in which reference numeral 31 denotes an original placed on the original platen glass 21, 32 a lamp for irradiating the original, and 33a scanning the reflected light of the light irradiated by the lamp 32. A first scanning mirror 33b scans the reflected light from the first scanning mirror 33a.
3c is a third scanning mirror that scans the reflected light from the second scanning mirror 33b, and 33d is the third scanning mirror 3.
a fourth scanning mirror that scans the reflected light from 3c; 3.
3e is a fifth scanning mirror that scans the reflected light from the fourth scanning mirror 33d, and 33f is the fifth scanning mirror 3.
a sixth scanning mirror 34 that scans the reflected light from 3e;
is a zoom lens, which moves according to the magnification. A fixed lens 35 collects light from the fifth scanning mirror 33e. A line sensor 36 receives light from the fixed lens 35 and detects the size of the original, and constitutes the original size detection means of the present invention, and is composed of, for example, a COD. 37 is a photosensitive drum on which an image is formed via a sixth scanning mirror 33f.

When the optical system scans the original 31 placed on the original platen glass 2, the line sensor 36 continuously scans the original 31 placed on the original platen glass 2.
: The original information (line information) is transmitted, the CPU forms surface information, and the original size is detected.

DiS4 is a sectional view showing an example of an automatic document feeder used in the image processing apparatus of the present invention, in which 41a is a feed roller that feeds the document 31, 41b is a conveyance roller that conveys the document 31, and 41c is a feed roller that feeds the document 31. is a separation roller for heavy feed prevention 11-. 42 is a conveyor belt, 43 is a discharge tray, 44
is a paper feed sensor composed of, for example, a photo ink printer, which not only detects the presence or absence of the document 31, but can also detect the length of the paper based on the time it takes to traverse the document.

The document 31 is fed to the paper feed rollers 41a, 41Iil feeding port~U4
1b 9 When it is conveyed via the separation roller 41c,
The sheet passes through the paper feed sensor 44, is conveyed to a predetermined position by the conveyor belt 42, and is stopped. At this time, a copy start command is sent to the main control section of the apparatus, which will be described later, and after the copying operation is completed, the copies are deposited on the discharge tray 43. In addition, manuscript 31
If the lateral direction perpendicular to the feeding direction of the document 31 is defined when the document 31 passes the paper feed sensor 44, the paper size can be detected. Additionally, this automatic document feeder is the first automatic document feeder.
It is configured so that it can be attached to the main body in exchange for the original pressure plate 3 shown in the figure.

FIG. 5 is a block diagram showing an embodiment of the present invention, in which 36 and 44 are the same as those in FIG. 3 or 4, and 51 is a control block comprising, for example, a microprocessor. The document size detection and selection means of the present invention is provided in this section.

52 is an amplifier that amplifies the signal from the line sensor 36, and inputs it to the main control section 51 via the A/D converter 53. 54 is the automatic document feeder shown in FIG. 4, which includes a paper feed sensor 44 that detects the passage of the document 31 and the document size, and receives the output of the paper feed sensor 44 to issue a copy start command and the document size. It is composed of a sub-control section 55 that sends signals to the main control section 51, and the like. 56 is a copy key, 57
is a document size detection start key serving as confirmation display command means of the present invention. 58 is a display section that displays the document size detected by the line sensor 36 or the paper feed sensor 44, and includes the display groups 21, 22, . . . shown in FIG. Composite display section 23
Consisted of.

Note that the image processing apparatus of the present invention has a transfer function based on the existing electrophotographic method. Furthermore, the cassette size is automatically selected in the automatic paper feeding mode, and the magnification is automatically set in the automatic magnification mode.

Next, the operation of determining the automatic magnification mode or the automatic paper feeding mode based on the document size detection operation by the line sensor 36 and paper feed sensor 44 will be explained in order. Note that the two systems of document size detection means can be freely selected according to the operator's will, and the two systems are automatically switched. That is, when using the automatic document feeder 54, the document size is detected by the paper feed sensor 44 in order to increase the copy speed, and the size of the document (such as a book) that cannot be loaded into the automatic document feeder 54 is detected. In this case, the line sensor 36 detects the document size. Furthermore, it is assumed that the manuscript 31 is a book.

Now, the operator selects the automatic paper feeding mode or the automatic magnification changing mode using a manual key (not shown) on the operation panel 11-, and one of the modes is determined. For example, if automatic paper feeding mode is selected, then magnification information is input. At this time, the cassette size of the selected paper feed cassette, for example B5, lights up in the display group 22, and the cassette area is displayed in the composite display group 23. After that, when the operator immediately presses the copy key 56, a pre-scan is performed to detect the document size, and the line sensor 36 receives the reflected light from the lamp 32, and the document information (document length (portrait/horizontal), document Amplifier 52, A
The signal is sent to the input port of the main control section 51 via the /D converter 53. ] The groom control section 51 determines the document size from the J2 document information and displays it as a standard size from the output port of the main control section 51 on the display group 21 of the operation panel 11-, and also displays the input document 31 as a standard size. The document area is displayed on the composite display section 23 based on the size and orientation of the document area. Note that the document area display is displayed only during copying to prevent misidentification with the cassette area display. That is, while the document area display is a dynamic display such as a rotation display or a flashing display, the cassette area display is a static display so that the two can be distinguished.

Thereby, by displaying the sizes and orientations of the document size and the cassette size in the same area on the composite display section 23, it becomes possible to more visually appeal to the operator about the copy mode.

On the other hand, if the line sensor 36 detects a misplacement of the document 31 based on the prescan results, for example, the document 31 is placed diagonally or the reference point is incorrect, and the operation panel
A warning is displayed on the upper display (not shown). At this time, if the document 31 is simply placed misaligned in the scanning direction, the main control unit 51 controls the timing of registration rollers (not shown) in the paper feed system to automatically adjust the transfer start. Correct to.

Also, if the line sensor 36 detects a misplacement of the document 31 based on the prescan results, for example, it detects that the document 31 is placed horizontally instead of vertically on the document glass crow 21-. Display section on operation panel 1 (
Figure is small) New! Display ¥ notice.

Furthermore, based on the pre-scan results, the line sensor 36
If it is determined that the document 31 is of a non-standard size based on the relationship between the vertical and horizontal lengths of the document 31, the minimum standard size that satisfies the vertical and horizontal lengths of the document 31 is selected and displayed on the composite display section 2.
3, and the automatic magnification mode and automatic paper feeding mode can be determined according to the document size.

On the other hand, when the operator presses the document size detection start key 57, the prescan operation or the automatic document feeder 54 is operated in the same way as in normal operations to detect the document size and display it on the composite display section 23. At the same time, it also executes the setting operations for automatic magnification mode or automatic paper feed mode,
Control ends without performing image formation.

Next, the document size detection operation by the automatic document feeder 54 will be explained.

After the operator specifies either the portrait or landscape orientation of the document 31, the document 31 is loaded. Next, the paper feed sensor 44 senses the passage of the original 31, detects the length of the other one of the originals 31 which was not specified based on the passing time, and sends the detected length to the sub-control unit 55. Along with this, the sub-control unit 55 sends the detected document size to the main control unit 51. In response to this, the main control section 51 displays the detected document size on the composite display section 23. The operation after this is done by the line sensor 36.
According to the operation according to.

Next, the detailed operation of the present invention will be explained with reference to the flowcharts of FIGS. 6(a) and 6(b). In addition,(
1) to (35) are shown in Table 12, Figure 6(a),
The flow shown in (b) is a subroutine called by the main routine.

Determining whether the copy key 56 has been pressed 1), the copy key 56
If is pressed, the main control unit 51 determines whether copying is to be performed using the automatic document feeder 54 (2). If the result of this judgment is No, perform prescanning (3, check whether or not original 31 is set in 4), and then
1 is set, further check whether it is set correctly in the reference position on the document table glass 2 (5). If it is set correctly, the vertical direction of the document 31 detected by the line sensor 36 should be checked. The document size and orientation of the document 31 are recognized from the length and horizontal length (6). Next, the recognition result of step (6) is displayed in the display group 21.
(7). Next, check whether the automatic magnification mode is selected (8), and if the automatic magnification mode is not selected (3), then check whether the automatic paper feed mode is selected (9). If the paper mode is not selected, check the setting state of the detection flag by pressing the document size detection start key 57 (10), and if the detection flag is set to CERA I, reset the detection flag (11). Return to main routine. On the other hand, if the detection flag is not set according to Step (1o), copying will not start.
2) Return to the main routine.

Further, when the copy mode using the automatic document feeder 54 is selected in step (2), the document 31 is conveyed to the automatic document feeder 54 to detect the document size13).
The detected original size is sent to the main control unit 5 via the sub-control unit 55.
1 (14), proceed to step (7), display group 2
Display the original size in 1.

If it is determined in step (4) that the original 31 has not been set, a warning will be displayed indicating that the original has not been set.15)
Jump to step (11). Also, if it is determined in step (5) that the original 31 is not set correctly at the reference position on the original platen glass 2, further check whether the positional deviation of the original 31 occurs only in the scanning direction.
6) If YES, adjust the timing of the register I/roller 17), proceed to step (8); if NO, display a warning about the missetting of the document 31. 18), step (
Jump to 11).

In addition, if automatic magnification mode is selected in step (8), step (6) or step (1)
The document size data determined in step 4) and the cassette size set by the operator are used to determine the magnification of the document size in step 19), and then the vertical and horizontal relationship of the document 31 set on the document platen glass 2 is determined. Check whether the vertical and horizontal relationships of the transfer paper stored in the cassette match (20). If they do not match, return to step (18), and if they match, proceed further to step (18) to decide. The magnification is set i
If the setting is possible, display the magnification determined in step (19) on the operation panel 1 (24) and proceed to step (10). If the setting is not possible, issue a warning. 22) and take further countermeasures (22)
3), proceed to step (11).

On the other hand, if automatic paper feed is selected in step (8), the paper feed cassette is selected based on the document size data known in step (6) or step (14) and the magnification set by the operator. 25) Next, check whether the vertical and horizontal relationship of the original 31 set on the document table glass 2 matches the vertical and horizontal relationship of the transfer paper stored in the paper feed cassette 71. 26), and if they do not match, return to step (18), and if they match, check whether the paper feed cassette selected in step (26) is compatible with the magnification set by the operator. Please judge if it is compatible27), and display a warning if it is not compliant28)
, take further countermeasures (28), proceed to step (11), and if they are compatible, then check whether a cassette of the optimal size exists (3o), and check if a cassette of the optimal size exists. If not, display a warning 31), display the smallest standard size in which the original area will not be missing in the display group 22), return to step (11), and if a cassette of the optimum size exists, select the optimum size. 33), and return to step (1o).

Furthermore, if the operator presses the document size detection start key 57 before pressing the copy key 56, step (1
), the process proceeds to step (34) to set the detection flag (35), and the process proceeds to step (2), from which the automatic paper feeding mode can be set and the copying/reading state can be checked.

〔Effect of the invention〕

As explained above, this output jJ7 displays the document size detected by the document size detection means, and also displays the determination status of the automatic paper feeding mode and automatic magnification mode, which are determined according to the document size. Since a confirmation display command means is provided to send out a display command for image formation, the operator can confirm that the cassette size selection form in the automatic magnification mode is 1 and the magnification setting form 7g in the automatic paper feeding mode before image formation. This has the advantage that there is no need to make trial copies and paper waste can be reduced significantly.

[Brief Description of the Drawings] Figure 1 shows an image pair J! of an embodiment of the present invention. l! FIG. 2 is a perspective view showing the external appearance of the device, FIG. 2 is a cut-out view of the operation unit that displays the document size and cassette size, FIG. 3 is a schematic internal cross-sectional view of FIG. 1, and FIG. 4 is used in the image processing device of the present invention. 5 is a sectional view showing an example of an automatic document feeder, FIG. 5 is a block diagram showing an embodiment of the present invention, and FIGS. 6(a) and (b)
) is a flowchart showing the control operation of the present invention. In the figure, 7 is an operation panel, 2 is an original table glass, 3 is an original pressure plate, 21.22 is a display group, 23 is a composite display section, 31 is an original, 32 is a lamp, 33a is a first scanning mirror, 33b is a first scanning mirror. 2 scanning mirror, 33c is the third scanning mirror, 33d is the fourth scanning mirror, 33e is the fifth scanning mirror, 33f is the sixth scanning mirror.
A scanning mirror, 34 a zoom lens, 35 a fixed lens,
36 is a rhino sensor, 37 is a photosensitive drum, 41d is a paper feed roller, 41b is a conveyance roller, 41c is a separation roller, 4
2 is a conveyor belt, 43 is an ejection tray 44 is a paper feed sensor, 51 is a main control section, 52 is an amplifier, 53 is an A/D converter, 54 is an automatic document feeder, 55 is a sub-control section, 56 is the copy key, 57 is the original size detection start key, 58
is the display section. Figure 1 Figure 2 21 23 22 Figure 3 Figure 5 14 Figure 6 (a)

Claims (2)

[Claims] (1) In an image processing apparatus that performs transfer by determining an automatic paper feeding mode and an automatic magnification mode according to the original size detected by the original size detection means, the original size is displayed and Confirmation display command means A (
An image processing device characterized by nil processing. (2) Claim (1) characterized in that image formation is stopped during the display command from the display command means.
The image processing device described in Section 1.