JPS63301060A - Image forming device - Google Patents

Abstract

PURPOSE:To recognize with what image formation mode an image is formed in at a glance by forming the image on an image-forming body according to image information obtained from a supplying means and pattern data generated by a generating means. CONSTITUTION:When a binarization signal corresponding to the lower part of an image part is supplied to a thermal temperature control part 93, a copy mode data processing part 100 outputs character pattern data on one corresponding dot line among copy mode data stored in a copy mode data memory 101 to a thermal head temperature control part 93. The thermal head temperature control part 93, therefore, outputs the composite signal of a binarization signal supplied from a gradation converting circuit 88 and a character pattern for a thermal head 24 to the thermal head 24 as a print signal. Consequently, the image is printed at an image part on a form and copy mode data on color density, magnification, etc., are printed below the image. Consequently, it is known at a glance what copy mode a copy is taken in.

Description

[Detailed Description of the Invention] [Objective of the Invention 1 (Field of Industrial Application) This invention is! For example, the present invention relates to an image forming apparatus that reads an image of a document using a CCD line sensor and forms an image on paper according to the read signal.

(Prior Art) Recently, a color copying machine using a thermal transfer type ink ribbon has been developed as a copying machine. In such a device,
The image on the document table is read by a photoelectric converter composed of a CCDCD biline sensor filter, and by photoelectrically converting the light reflected from the document, it is separated and output as color signals of cyan, green, and yellow light. It looks like this. As a result, three consecutive CCD blocks for each color correspond to one page of the original.

However, with such devices, the user is able to copy the original on the document table onto a sheet of paper under his or her desired copying conditions. In other words, copy mode data such as color density and magnification are input.

As described above, copy mode data is input to make a copy, but there is a problem in that when copying the same document again, the previous copy mode data is not known. . Furthermore, when the same document is copied while changing the copy mode data, there is a problem in that it becomes unclear which copy was copied in which copy mode.

(Problems to be Solved by the Invention) As described above, this method eliminates the drawback that there is a possibility that it becomes impossible to know in which image formation mode the image formation was performed. It is an object of the present invention to provide an image forming apparatus that allows you to see at a glance whether an image has been formed.

[Structure of the Invention] (Means for Solving the Problems) The image forming apparatus of the present invention includes a supply means for supplying both edge information signals, an input means for inputting image forming mode data, and an input means for inputting image forming mode data by the input means. A generating means for generating pattern data for the image forming mode data, and image forming conditions for the image forming mode data inputted by the inputting means, image Buddha information obtained by the supplying means and pattern data generated by the generating means. The image forming means is configured to form an image on the image forming medium according to the image formation medium.

(Function) In this invention, when forming an image on each image forming medium, copy mode data is also output, so that it is possible to see at a glance what image forming mode the image was formed in. This can be determined by

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 2 shows, as an example of the image forming apparatus of the present invention, a thermal transfer type color copying machine that can selectively produce multicolor copies. In other words, 1 is the copying machine main body,
An operation panel (not shown) is provided at the front of the upper surface of the main body 1. The upper part of the main body 1 is a document scanning section (optical system) 3 that scans and reads a document set on a document table 2, and the lower part is an image forming section 4. In addition,
Reference numeral 5 denotes an automatic document feeder (ADF) provided on the document table 2 so as to be openable and closable. Further, the document table 2 is fixed to the main body 1.

The document scanning section 3 is configured as shown in FIGS. 2 to 4, for example. That is, a first carriage 7 in which an illumination lamp 6 is installed as a first light source, a second carriage 8 that bends the optical path with a mirror, a zoom lens 9, and a photoelectric converter 11 that guides the reflected light from the original O to a photoelectric converter 11 for variable magnification. It is composed of a mirror part 10 that occasionally corrects the optical path length, a photoelectric converter (conversion means) 11 that receives reflected light from the original O, and a drive system (not shown) that changes the positions of these parts. .

The first carriage 7 includes an illumination lamp 6 that irradiates light onto the document O, a glue deflector 12 that serves as a reflector that collects the light from the illumination lamp 6 onto the surface of the document, and a second carriage that directs the reflected light from the document O. A mirror 13 that guides the camera to the 8 side is mounted.

The second carriage 8 includes a mirror 8a that guides the light guided by the mirror 13 to the zoom lens 16.

8b is installed. The first and second carriages 7.
8 are connected to each other by a timing belt 18, and the second carriage 8 moves at 1/2 the speed of the first carriage 7 in the same direction. This makes it possible to scan so that the optical path length up to the zoom lens 16 is constant.

The zoom lens 16 has a variable focal length and is movable, and is moved in the optical axis direction when changing the magnification.

The upper S self-mirror part 1o is composed of two mirrors 10a and IQb, and the mirrors 10a are adjusted according to the change in optical path length corresponding to the selected magnification ratio.

The position of the zoom lens 10b is changed.
The light from 6 is transmitted to the two mirrors 10a.

By bending the optical path at 10b, the light is guided to the photoelectric converter 11.

The photoelectric converter 11 converts the reflected light from the original 0 into a cyan image by photoelectrically converting the image of the original 0.

Green, yellow (or red, green.

It separates and outputs a color signal of (blue) light, and is mainly composed of, for example, a CCD type line image sensor. In this case, one pixel of document 0 corresponds to three consecutive elements (C, GSy) of the CCD sensor. The output of the photoelectric converter 11 is output to an A/D converter 91, which will be described later.

The first and second carriages 7.8 are moved by stepping motors (not shown), respectively.

As shown in FIG. 4, the first and second carriages 7.8 operate a timing belt 19 that is stretched between a drive pulley 14 connected to the rotating shaft of the stepping motor and an idle pulley 15.16. It will be moved accordingly.

The mirrors 10a, 10b and zoom lens 16 are
They are each moved by separate stepping motors (not shown). The zoom lens 16 is
A spiral shaft 17 is rotated by a corresponding stepping motor, and the movement of the spiral shaft 17 causes movement in the optical axis direction.

The image forming section 4 is configured as shown in FIG.

That is, the platen drum 22 is disposed approximately at the center of the image forming section 4 . This platen drum 22
The periphery of the roller is made of an elastic material such as rubber, and functions as a platen roller for the thermal head 24.

The platen drum 22 rotates clockwise to wrap the paper P around itself so that the afl P does not shift during overlapping printing. A pressure roller 2 is installed around the platen drum 22 at predetermined intervals to prevent the paper P from floating up from the platen drum 22.
5,... are provided. The above platen drum 22
The circumference of the paper is slightly longer than the length of the maximum paper size in the longitudinal direction.

A thermal head 24 is disposed diagonally below and to the left of the platen drum 22 . The thermal head 24 is formed into a claw tube with a heat radiator integrally formed on the rear end surface of the holder. Then, the platen drum 22 and the thermal head 2
4, there is an ink ribbon 26 as an image forming medium.
There is an intervening state.

The cores 30 and 31 of the ink ribbon 26 are connected to a drive shaft of a motor (not shown) via a drive force transmission mechanism (not shown), and are driven to rotate as required.

A paper feed roller 41 is provided at the lower portion of the main body 1, and is adapted to take out KPs as image forming media stored in the paper feed cassette 2o one by one.

The paper P taken out by the paper feed roller 41 is transferred to the transport roller 42
The transport roller 42 is sent to the registration roller 21 disposed diagonally above and to the left of the conveyance roller 42, and its tip is aligned.Then, the registration roller 21 transports it toward the platen drum 22 via a guide 43, and the gripper 23. The pressing is carried out by the rollers 25, .

Here, the paper feed cassette 2o is detachable from the side of the main body 1. Note that 46 in FIG. 2 is a manual paper feeding device for manually feeding paper P and the like. The paper P fed from the manual paper feeder 46 is also wound around the platen drum 22 in the same manner as described above.

The paper P whose leading edge is fixed by the gripper 23 is wound around the platen drum 22 by clockwise rotation, and after the leading edge passes through the printing area, the paper P is placed in the thermal head 24.
is pressed against the platen drum 22, and printing is performed.

When printing of the first color is completed, the platen drum 22 has rotated approximately once. Here, the thermal head 24 is once released, the ink ribbon 26 is wound up, and the next color is located.

Then, the platen drum 22 starts rotating clockwise again, printing is performed by the thermal head 24, and the next color is overprinted (printed).

In this way, in the case of full-color copying, image formation is performed by four operations of yellow, magenta, cyan, and black, or three operations of yellow, magenta, and cyan. In the case of a single color such as black, it is performed in one operation.

When discharging the paper, the platen drum 22 is rotated clockwise until the trailing edge of the paper P reaches the paper discharging guide 27, and when the rear end of the paper P reaches the paper discharge guide 27, the platen drum 22 is rotated counterclockwise. A separation claw (not shown) separates the rear end of the paper P from the platen drum 22 and guides it to the paper discharge guide 27. Finally, the leading edge of the paper P is released from the gripper 23, and the paper P, which has been copied and transported by the paper discharge guide 27, is discharged onto the paper discharge tray 28.

FIG. 1 schematically shows the overall control system, which includes a main control section 81, a first control section 82, and a second sub-control section 83. The main control section 81 includes an operation panel 80S copy mode data processing section 100, a correction circuit 84, a luminance color difference separation circuit 85, an image quality improvement circuit 86, a color signal conversion circuit 87, a gradation conversion circuit 88, a first sub-control section 82, and Second sub-control unit 8
3 and are in charge of controlling these.

The first sub-control unit 82 is connected to a light source control unit 89, a motor drive unit 90, the photoelectric converter 1, an A/D converter 91, and a resolution conversion unit 92, and controls these. The light source control section 89 is connected to the illumination lamp 6 and controls its lighting and light amount. That is, the illumination lamp 6 is turned on during a normal image reading operation.

A motor drive unit 90 is connected to the scanning motor 18 and drives it. The second sub-control unit 83 is connected to a thermal head temperature control unit 93, the thermal head 31, various detection switches 94, and a drive unit 95, respectively,
In charge of these controls.

The drive unit 95 includes a drive system 9 such as a motor and a solenoid.
6 and drives it.

The operation section 80 is provided with a mode setting key 80a for setting color density and magnification as a copy mode.

The copy mode data set by the mode setting key 80a is stored in a copy mode data memory 101 connected to the copy mode data processing section 100.

The copy mode data processing unit 100 converts the copy mode data stored in the copy mode data memory 101 into character pattern data, and converts the copy mode data stored in the copy mode data memory 101 into character pattern data and
This is what is output to. As shown in FIG. 6, the character pattern data corresponding to the above copy mode data is output in units of one line tod by coordinate management when printing on the lower part C of the image area a of the paper P. It has become. The character pattern data may be printed at any other position, that is, the image area a or the imaged area.

The color signal conversion circuit 87 will be explained in more detail with reference to FIG. The luminance signal (■) sent from the image quality improvement circuit 86, the color difference signal 1 (C1,) and the color difference signal 2 (
Each signal of C2) is sent to a color signal conversion circuit 87, which sends any one of Y, M, C, and B color signals to a gradation conversion circuit 88.
, C, and B are selected by the main control section 81. That is, as shown in the table below, the main control unit 81 selects the Y, M, C, and B color signals sent to the gradation conversion circuit 88 based on the combination of the signals a and b. Note that the above color signals are automatically selected sequentially (for example, Y-+
Next, the operation in the above configuration will be explained. For example, first, color density, magnification, etc. are set using the mode setting key 80a. Then, the main control section 81 stores the copy mode data such as the color density and magnification in the copy mode data memory 101.

Then, the original O is set on the automatic original feeder 5, and a copy start key (not shown) is pressed. Then, the document O is placed on the document table 2 by the automatic document feeder 5, and the paper P in the paper feed cassette 20 is taken out by the paper feed roller 41. It is conveyed by rollers 21. Then, the paper P conveyed by the registration rollers 21 is guided to the platen drum 22 via a guide 43, and its leading end is fixed by a gripper 23. Thereby, the paper P is wound around the platen drum 22.

Next, the main control section 81 turns on the illumination lamp 6 and starts a normal copying operation in the set copying mode. Thereby, the reflected light of the light irradiated onto the original O from the illumination lamp 6 is reflected by the mirror 13.8a.

8b, the zoom lens 16, and the mirrors 10a and 10b in order to the photoelectric converter 1], and is imaged on the photoelectric converter 11. The photoelectric converter 1.1 converts this light into cyan (C),
The signal is separated into green (G) and yellow (Y) analog color signals and sent to the A/D converter 91. The A/D converter 91 converts each analog color signal into a digital signal and sends it to the resolution converter 92. The resolution conversion unit 92
Resolution conversion is performed to match the resolution of the photoelectric converter 11 and the resolution of the thermal head 24, and the result is sent to the correction circuit 84. The correction circuit 84 includes a resolution converter 92
A correction process is performed on each of the C, G, and Y color signals sent from the charging converter 11 to correct for variations in the charging converter 11.
The result is sent to the luminance/color difference separation circuit 85. The luminance color difference separation circuit 85 receives the C, G, and Y signals sent from the correction circuit 84.
Various calculation processes are performed on each color signal of the luminance signal (1
), color difference signal 1 (CI), and color difference signal 2 (C2), and send them to the image quality improvement circuit 86. Image quality improvement circuit 8
6 analyzes the luminance signal, color difference signal 1, and color difference signal 2 sent from the luminance color difference separation circuit 85, performs image improvement processing such as edge emphasis and character identification, and converts the luminance signal to the color signal conversion circuit 87.
send to The color signal conversion circuit 87 performs color conversion based on the luminance signal, color difference signal 1, and color difference signal No. 13 2 that have been subjected to image quality improvement processing, and converts them into yellow (Y), magenta (M), and cyan (
C).

It is converted into a color signal (signal corresponding to density) of black (B) [three primary colors (Y, M, C) plus B during printing] and sent to the gradation conversion circuit 88.

The level 1 week conversion circuit 88 performs area gradation conversion on the color signal (any one of Y, M, C, B) sent from the color signal conversion circuit 87 using a dither method, that is, a binary value. Then, the binary signal is sent to the thermal head temperature control section 93. The thermal head temperature control section 93 sends a print signal to the thermal head 24 based on the binary signal supplied from the gradation conversion circuit 88 . To thermal, Rad24
performs printing (that is, image formation) in accordance with the print signal.

Further, the copy mode data processing section 100 causes the thermal head temperature control section 93 to control the thermal head temperature control section 93 to
When the value signal is supplied, the copy mode data memory 10
The character pattern data for the corresponding one dot line of the copy mode data stored in No. 1 is output to the thermal head temperature control section 93. Therefore, the thermal head temperature control section 93 outputs a signal obtained by combining the binary signal supplied from the gradation conversion circuit 88 and the character pattern corresponding to the copy mode data to the thermal head 22 as a print signal.
Output to. As a result, an image is printed on the image area a of the paper P as shown in FIG. Copy mode data consisting of color density and hue is printed.

Then, when the printing is completed, the main control section 81 turns off the illumination lamp 6, and ends the copying operation.

As described above, since the copying mode data as the conditions under which copying was actually performed is output on the copied paper, it is possible to see at a glance what copying mode was used for copying. As a result, when you see a copy of paper and want to make the same copy, you can operate the operation panel to make a copy based on the copy mode data printed on the copy paper, even if you do not remember the copy mode. The same copy can be made by

In the above embodiments, the case where the copy mode data is always printed has been described, but the present invention is not limited to this, and printing of the copy mode data may be selected using a key provided on the operation panel.

Furthermore, printing of only the copy mode data that is desired to be output may be selected.

[Effects of the Invention] As described in detail above, according to the present invention, it is possible to provide an image forming apparatus in which it is possible to see at a glance in what image forming mode the image formation was performed.

[Brief explanation of the drawing]

The drawings are for explaining one embodiment of the present invention, and FIG. 1 is a block diagram schematically showing the overall control system, FIG. 2 is a sectional view schematically showing the overall configuration, and FIG. 3 is a diagram for explaining the main part of FIG. 2, FIG. 4 is a schematic perspective view showing a part of the configuration, FIG. 5 is a block diagram for explaining the color signal conversion circuit in detail, and FIG. FIG. 6 is a diagram showing an example of printing on paper. O...Original, P...Paper (image forming medium), 3.
... Original scanning section (optical system), 4... Image forming section, 6.
... Illumination lamp, 8a18b, 10a110b-mirror, 11... Photoelectric converter (conversion means), 16... Zoom lens, 22... Platen drum, 24... Thermal head, 26... Ink ribbon (image forming medium)
, 80... Operation panel, 80a... Mode setting key, 81... Main control section, 82.83... Sub control section, 8
7... Color signal conversion circuit, 89... Light source control section, 91
... A/D converter, 92 ... Clarity converter, 100
. . . Copy mode data processing section, 101 . . . Copy mode data memory. Applicant's agent Patent attorney Takehiko Suzue Figure 1 Figure 3 Figure 41Xi Figure 5

Claims (2)

[Claims] (1) A supply means for supplying an image information signal, an input means for inputting image forming mode data, a generating means for generating pattern data corresponding to the image forming mode data input by the input means, and an input means for inputting by the input means. an image forming means for forming an image on an image forming medium according to image information obtained by the supplying means and pattern data generated by the generating means under image forming conditions for the image forming mode data set; An image forming apparatus comprising: (2) The image forming apparatus according to claim 1, wherein the image forming mode data is color density setting data, magnification setting data, or the like.