JPH03201670A - Picture forming device - Google Patents

Abstract

PURPOSE:To easily form an inclined picture as a whole and to incline only one part in an original as well by setting a shift start line, shift end line at a picture formation starting position and a shift amount at the picture formation starting position. CONSTITUTION:This picture forming device is composed of three control parts such as a main control part 1, sub control part 2 and sub control part 18. A picture control means 1 is provided to shift the picture forming position of one line for the unit of a dot, and a means 7 is provided to input sizes for the shift start line, the shift end line at the picture formation starting position and the shift amount at the picture formation starting position. Thus, timing can be controlled for activating a fly signal to show a picture signal block synchronized to a picture signal for one line, an inclination start line and an inclination end line are inputted and set and a copied picture is formed while inclining only one part of the original picture.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to an improvement of an image forming apparatus, and more specifically, to reading an original image and performing certain processing on both image data obtained. In addition, the present invention relates to an image forming apparatus for obtaining new image data.

(Prior art) For example, copying machines were developed to copy images on a document directly onto copy paper, but in recent years, with the diversification of needs and improvements in both image processing technology, Image forming apparatuses have been developed that are capable of not only enlarging and reducing images, but also performing various image processing such as trimming and masking.

For example, Japanese Patent Application Laid-open No. 63-67870 (title of invention: image italicization processing device) reads an image on a document, converts it into an image signal, and stores the converted image signal in a buffer memory. At the same time, a writing means writes the image signal one line at a time into the buffer memory, a reading means reads out the image signal stored in the buffer memory one line at a time in the scanning direction, and controls the writing means and the reading means. and read/write control means to
The reading/writing control means controls the writing means or the reading means so that the reading start position of the image stored in the buffer memory is sequentially shifted with respect to the writing start position every time one line or several lines are read. Then, both images on the document are recorded in a diagonal manner in this shift direction.

(Problems to be Solved by the Invention) However, with this double-image italicization processing device, the entire area of both images is italicized, and in a document consisting of characters and figures, it is not possible to italicize only the characters.

Therefore, the present invention attempts to overcome the drawbacks of conventional image forming apparatuses and provide a dual image forming apparatus that can form a copy image in which only a part of both original images are italicized. be.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention provides an image signal converting means for reading an image on a document and converting it into an image signal; an image forming means for forming an image one line or one dot on one line on an image forming medium based on both image signals converted by the image forming means; an image control means for shifting the start position in units of dots; an input means for inputting a shift start line and a shift end line of the image formation start position and a shift amount of the image formation start position by the image control means; The present invention is characterized in that it has a storage means for storing the shift start line, the shift end line, and the shift amount.

(Function) As described above, an image on a document is read by the image signal converting means, and based on the signal converted into an image signal, an image is formed on the image forming medium line by line or dot by line on each line. In the image forming means to be formed, input the image control means that can shift the image forming position of one line by about 1% dots, the shift start line and shift end line of both image forming start positions, and the magnitude of the shift amount of the image start position. By means of this means, it is possible to control the rise retiming of the fly signal (hereinafter abbreviated as rH5YNCJ) indicating an image signal division synchronized with the two image signals for one line, and it is possible to input and set the italicization start line and the italicization end line. When a control command is issued from , the double image forming operation is started, and HSYNC indicates a normal effective double image signal section, from the tip of the image to the italicization start line, and from the italization start line to the italicization end line. During the period, HSYNC forms a diagonal double image by sequentially shifting the image signal by χ=t every line or several lines, and from the end of the italicization line, HSYNC
indicates an effective image signal section according to I'E standard and forms a non-italicized image (Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a control system diagram showing the overall tank bottom of a copying machine as an image forming apparatus according to an embodiment, and has three control sections: a main control section 1, a sub-control section 2, and a sub-control section 18. .

The main control section 1 is connected to an operation key section 7, a display section 8, a correction circuit 12, an image quality improvement circuit 13, a binarization circuit 14, a memory control section 9, a sub-control section 2, and a sub-control section 18 on the control panel. 1 and control these.

The sub-control section 2 is connected to the light source control section 3, motor drive section 5, photoelectric converter 10, and A/D converter 11, and controls these. Further, the light source control section 3 controls or drives the light source 4, and the motor drive section controls or drives the scanning motor 6.

The sub-control unit 18 is connected to the thermal head temperature control unit 16, one detection switch, and the drive unit 20, and controls these. Further, the drive unit 20 is connected to a drive system 21 and drives the drive system 21 such as a motor and a solenoid.

Next, the flow of signals in the copying machine of this embodiment will be explained according to FIG.

The reflected light of the light irradiated onto the original by the light source 4 forms an image on the photoelectric converter 10 . The photoelectric converter (2)0 converts this light into an analog signal and sends it to the A/D converter 11. A/
The D converter 11 converts this analog signal into a digital signal and sends it to the correction circuit 12. The correction circuit 12 applies compensation to this signal in order to correct variations in the photoelectric converter 10.
performs E processing and sends the result to the image quality improvement circuit 13;
The image quality improvement circuit 13 analyzes this signal, performs image improvement processing such as edge emphasis and character recognition, and converts the signal to a binarization circuit 14.
send to The binarization circuit 14 performs gradation conversion, that is, binarization, on this signal, and sends the binary signal to the memory 15. The memory 15 sequentially stores one line of signals that are sent sequentially into the memory.

The memory control unit 9 allocates an address on the memory map to the memory 15 during this memory storage. Furthermore, in response to a command from the main control section 1, the memory 15 also performs an operation of transferring data in a designated area on the memory map to another area.

During image formation, data stored in the memory 15 is sent to the thermal rad temperature control section 16. The thermal head temperature control section 16 sends a print signal to the thermal head 17 based on the sent signal. The thermal head 17 performs printing according to this printing signal.

When transferring print data from the memory 15 to the thermal head temperature control section 16, an H3YNC signal indicating the validity period of one line of print data is sent from the memory control section 9 to the thermal head temperature control section 16. The thermal head temperature control unit 16 transfers the print signal sent from the memory 15 while the H3YNC signal is "H" to an internal shift register (
Printing is performed by controlling each heating element (not shown) of the thermal head 17 on and off according to the value.

The flow of the copying operation will be explained with reference to FIGS. 2, 3, and 4.

When the image forming apparatus is powered on, it performs an initial operation (not shown in the flowchart), and then executes a main routine 21 shown in FIG. In the main routine 21, a key input from the operation key section 7 is accepted and the input key 22 is asked whether it is a copy key, an italic mode, or another key. +1 constant is performed (step 23), and each process is performed depending on the result of the determination, or if there is no key input, the process returns to key input 22.

When the italic mode key 24 is pressed, if the italic flag is on 15, the italic flag is turned off (26), and if the italic flag is off, the italic flag is turned on (step 27).
), an italicization start line, an italization end line, and an input prompting message for a slope (or shift amount) 28 are displayed on the display section 8 and inputted from the operation key section 7 . Then return to the beginning of the main routine.

If the copy key is pressed, the copy flag is turned on and the process returns to the beginning of the main routine.

FIGS. 3 and 4 are flowcharts of the interrupt processing routine using the I5YNC signal, which shows the image transfer processing time for one line.

When the 15YNC interrupt occurs, the copy flag 31 is checked and if it is not on, the program returns from the interrupt. If the copy flag 31 is on, the italic flag 32 is checked, and if the italic flag 32 is off, a non-italic copying operation is performed. That is, the phase of the print data output from the memory 15 and the H5YNC output from the memory control section 9 becomes O (step 35). Italic flag (step 32
) is on, the current line being printed is compared with the italicization start line (step 33). 0 if the current line has not reached the italicization start line (step 34)
, the non-italic copying operation is performed.

If the current line is between the italicization start line and the italization end line, the phase difference between the print data and H3YNC increases by one dot for each line or several lines depending on the slope (decreases if the slope is negative) (Step 36).

If the current line exceeds the end line, H3YN and phase are set to O (step 35).

After that, the scanning motor 6 is connected to the scanning motor 6 through the sub-control unit 2 and the motor drive unit 3, and the drive system 21 is connected to the sub-control unit 18 through the drive unit 2o.
The rIil control process is performed to increase the current line number by one (steps 37 to 38).

If the current line has not reached the rear end of the document (or the waveform image forming medium), the process returns from the interrupt.

When the rear end is reached, the carriage returns and the image forming medium is ejected, and the number of copies is decremented by 1 (step 41).

When the number of copies reaches O, the subject flag is turned off,
Return is made from the interrupt (steps 42 to 44).

Figures 5 (a), (b), and (c) are the original image (a) and the HSY
The relationship between NC (b) and the photographed image (c) is shown.

When the number of lines is 1 or 2, the phase difference between the image data and H3YNc is 01. When the number of lines is 3 or 4, the phase difference between the image data and HSYNC is 1. When the number of lines is 5.6, the phase difference between the image data and HSYNC is 2. When the phase difference between the image data and HSYNC increases by 1 for each line, image (a) is copied as both images (c).

In this embodiment, an italic image was obtained by controlling the phase difference between the image (print) signal and HSYNC indicating the effective image signal period, but the buffer memory and its It can also be applied to a method of obtaining an italic image by address control. Furthermore, by storing a plurality of parameters such as an italicization start line, an italization end line, and an inclination (shift amount), it is possible to obtain a copy image in which multiple locations in the document are oblique, as shown in FIG. 6(c). can.

Furthermore, although the italicization start line, italicization end line, and slope (shift ff1) are input from the key operation section, they may also be input by connecting a coordinate input device to the image forming apparatus. The tilting position and the like may be input by inserting a marker, etc., and performing image processing.

[Effects of the Invention] As is clear from the above description, according to the image forming apparatus of the present invention, it is possible not only to easily form an entire italic image, but also to italicize only a portion of a document. It also becomes possible.

[Brief explanation of drawings]

FIG. 1 is a control system diagram of an image forming apparatus according to an embodiment of the present invention;
FIG. 2 is a flowchart showing the operation flow of the image forming apparatus shown in FIG. (b) and (c) are the original picture and H3, respectively.
An explanatory diagram showing the relationship between YN and copy images, FIG. 6(a),
(b) and (c) are explanatory views showing an original, a conventional italic copy, and a pointed example of a copy of the present invention, respectively. 1... Main control section 2... Sub-control section (a, ) 18... Sub-control section (b) I (Patent attorney Hidekazu Miyoshi Figure 2 Figure 5 Figure 5 (a) (b) Figure 5 (c) Figure 6 (a) Figure 6 (b) Figure 6 (c)

Claims (1)

[Claims] Image signal converting means for reading an image on a document and converting it into an image signal; an image forming means for forming an image one dot at a time on one line; an image control means for shifting the image formation start position of one line in units of dots during image formation by the image forming means; and an image forming means for starting image formation by the image control means. It has an input means for inputting a shift start line and a shift end line of a position and a shift amount of an image forming start position, and a storage means for storing the shift start line, shift end line and shift amount input by the input means. An image forming apparatus characterized by: