JPH01578A - digital copying machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a digital copying device, and in particular, to
The present invention relates to an input control device for variable magnification size, number of copies, image density, etc.

[Prior art]

Conventionally, with the increase in copying functions not only in digital copying machines, the complexity of the operation panel has increased, making operation time-consuming and the number of copy mistakes increasing.

For this reason, in recent years, guidance displays have been installed on the operation panel.
Although the number of keys on the operation panel has been reduced to simplify operation, the reality is that even with this guidance display method, the complexity of the mode selection procedure remains unimproved.

That is, in order to accommodate the diversity of users, the control means of the conventional copy mode method requires time for the user to select from various copy modes to achieve his/her desired operation; It takes time to decide which operation to perform with a specific key on the operation panel. This would not be a problem if there was a person dedicated to copying, but in reality, various people perform these operations, which hinders the efficiency of office work for the reasons mentioned above.

In addition, with digital high-speed copying machines, when copying several types of documents with different control modes (operation modes), it is troublesome for the operator to set the mode change for each document, so it is difficult to improve copy productivity by using a continuous ADF. From this point of view as well, automatic control mode setting methods and means are desired.

〔the purpose〕

The present invention was made based on this background,
It is an object of the present invention to provide a digital copying device that can automatically set a desired combination of control modes to the machine.

〔composition〕

To this end, the present invention reads a control pattern (usually a barcode) printed on the leading edge of the document before reading the document, sets a combination of control modes in the machine based on this, and executes the control pattern. It is something.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1(a) shows a barcode representing the control mode, (bl
is the original with that barcode attached, Figure 2 is an external view of the entire digital copying device with the original placed on the contact glass, and Figure 3 (a), +1)l is the barcode before the copying operation. Fig. 4 is a block diagram of the electrical equipment for barcode reading, Fig. 5 is its timing chart, Fig. 6 (1, (bl is the control performed by the microprocessor unit in Fig. 4). ] 6-Chart.

In the barcode 20 shown in FIG. 1(a), the reference line is already printed in black, and the other selection items are printed in light colors, which have a density that cannot be detected by COD.

The value of this line density is determined by the spectral sensitivity of COD and the discrimination process.
It is related to the digitization dark value (binarization circuit 6 described later).

The user creates a barcode 20 by tracing a black line according to his or her copy conditions. This barcode 20' is an adhesive sticker, and by pasting it on the leading edge of the document 21, it is read into the COD.

For example, if a magnification control mode of 10 A4 sheets and 0.84x is required, the bar code shown in FIG. 1 (al) will be used.

Assuming that the barcode is pasted on the back of document 21,
In order to turn over the document 21 and read the barcode, the copy button is pressed in the same way as in a normal copying operation. The home position of the scanner is directly below the leading edge of the image.

Figure 2 tag, (explaining according to the flow of bl)
Before starting, the scanner first reads the barcode on the tip and recognizes the imaging conditions. After this recognition, if it is determined that there is a barcode, the control mode for the content is set.

Then, scanning is stopped, a return signal to the home position is issued, and a start signal is issued again after the control mode setting is completed. The reason for returning the scanner is that the lens drive circuit requires time to move the lens in settings related to zooming in the control mode. Note that the lens movement is performed to change the magnification.

If the image tip area read by the CCD (tip l(
If it is determined that there is no barcode in (ctm), scanning continues with the copy mode set on the operation panel.

Next, regarding barcode reading, see Figures 4, 5, and 6.
The details will be explained based on Figures (al, fbl).

When the microprocessor unit 10 detects that the copy start switch of the operation section 11 is turned on, the microprocessor unit 10 starts copy sequence control.

The image processing unit 2 starts reading an original image using the CCD 1, performs necessary image processing, and then drives the laser 3 to form an image using laser light.

On the other hand, the microprocessor unit 10 sets the clear signal CLR sent to the timing generator 7, shift register 8, and line counter 9 to "H" level.
Start the operation of each block.

The line counter 9 receives the laser beam and counts the LSYNC from the line synchronization pulse generator 4 that generates the line synchronization pulse LSYNC. When reaches the count value, the EC signal sent to gate 5 is #
Set to H# level. The reason why the EC signal goes to "L# level" again is because of the CLR from the microprocessor 10.
When the EC signal reaches the #H# level, the original image data read by the CCD 1 and photoelectrically converted is transmitted from the image processing unit 2 at the cycle TA.
It is sent to the binarization circuit in synchronization with the CLK pulse of , which determines whether it is a white level or a black level, and outputs "H#" if the black level is the subsequent data, and #L# if the white level is the output.Binarized original The image data is input to a shift register 8 and a timing generator.The timing generator 7 inputs the original image data from the binarization circuit as a TRG signal, that is, when the original image data is at the black ()I) level. Then, it outputs a pulse with a predetermined period T, l, and sends it as an R-PLS signal to the shift register 8. In other words, the line spacing of the barcode is set to CG.
This is the number of data that the DI reads. Therefore, this R-
By sampling the image data at the rising edge of the PLS signal, you can obtain the data when reading the barcode, and it is possible to sample whether the barcode is black (painted or not).Sampling in this way, The shift register 8 holds barcode data.The number of data that the shift register 8 can hold is equal to the predetermined number of barcodes.In other words, in the example shown in Fig. 1(a), there are 19 pieces of data. be.

Further, the timing generator 7 has a predetermined number of R-PLs.
RP L by the number S, that is, by the predetermined number of barcodes.
When the S signal is raised, the RCY signal is set to "H" level and the microprocessor unit 10 is notified of the end of barcode reading. Microprocessor unit 10
reads the data held in the shift register one after another when the RCY signal goes to 'H' level, and sets the copy mode according to this data.
If it is L" (white), the data set by the operation unit 11 is adopted and the subsequent copy sequence is controlled.

After completing the mode setting, the microprocessor unit 10 operates the timing generator 7 and shift register 8.
, the CLR signal sent to the line counter 9 is 'L''
Clear the level.

Moreover, the microprocessor unit IO is 1. At point 2, the scanner is returned, the lens is driven for zooming according to the mode setting, and then the scanner is started again and the copy sequence is executed.

In the barcode 20 of FIG. Dot/Tsuru).Copy mode (control mode)
The setting method is 3 from the line memory held in memory.
The data is divided into two bits at a time and taken into the shift register, and then processed by the microprocessor. This bit judgment for each 32 bits is performed sequentially from the next bit after the microprocessor detects the ON bit (bit pattern of the reference line) of the 32-bit continuous black level.

Therefore, the line width on the barcode is approximately 0.4 to 1. If it is within the range of 0, the middle 6 of the 32 bits are
Since the 16th bit becomes the "ON bit" black level, the presence or absence of a line is determined.

For example, if the second block of 32 bits has a black level, the paper size is determined to be A4 size. There are 20 32-bit blocks including the tip (reference code).

An effective usage mode of the present invention is, for example, when copying multiple files of originals with several types of copy modes on an ADF, etc. The control code bar
By being able to copy all files unattended, the operator does not have to change the copy mode midway through, which improves copy productivity.

〔effect〕

The present invention is as described above, and the control mode (copy mode, operation mode) can be automatically set on the machine by reading barcodes etc. using the reading section (COD) of the scanner, thereby improving operability. It can be significantly improved.

[Brief explanation of the drawing]

FIG. 1(a) shows a barcode representing the control mode, (bl
Figure 2 is an external view of the entire digital copying device with the original placed on the contact glass, and Figure 3 (a) shows the presence or absence of the barcode prior to the copying operation. Fig. 4 is a block diagram of the electrical equipment for barcode reading, Fig. 5 is its timing chart, and Fig. 6 (al) and (b) are the control performed by the microprocessor unit in Fig. 4. It is a flowchart. 1... CCD, 10... Microprocessor, 20
...Barcode, 21...Manuscript. Crystal l Cause (b) Figure 2 Figure 3 (b)

Claims (2)

[Claims] (1) A combination of control modes such as copy size, zoom size, number of copies, etc. can be executed by reading and determining a control pattern such as a bar code provided at the leading edge of the document. A digital copying device. (2) When it is determined that there is a barcode on the document based on the discrimination processing of the read signal several centimeters from the leading edge of the image, the copy control mode is set giving priority to the contents of the barcode, and a scanner return signal is issued upon detection. to make the scanner standby at its home position, and after completing the settings,
The digital copying device according to claim (1), further comprising a control means that issues a scan start signal again and continues scanning to read the image when it is determined in the discrimination process that there is no barcode. Device.