JP3039774B2 - Image processing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] [0001] The present invention relates to a color processing apparatus.
Display method. [0002] 2. Description of the Related Art In recent years, facsimile machines, copying machines, etc.
User groups who use image processing devices with the spread of image processing devices
Is showing a wide spread. Also color of color copier etc.
Processing equipment is also being developed. [0003] [0004] [0005] However, the image processing
Of users who use image processing devices with the spread of
Users can use the image
Opportunities to use processing equipment are increasing. Color copier, etc.
The same can be said for the color processing device of (1). [0006] Instruction manuals are attached to the above devices.
Users who are not familiar with the device,
Instructions for your current settings
It is difficult to find out where it is written. not to mention,
In a device where the screen for setting changes one after another,
The screens are often similar, which is sufficient for the user
It took considerable training to master it. [0007] SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems.
This was done to solve the problem.
Display the screen for color management settings, and
According to the change instruction, the display is set for color processing setting.
Change to the screen and place it on the changed display.
Color processing device that sets color processing according to the color processing settings
The display method according to claim 1, wherein the display is
At the time of the screen for the fixed processing setting, the screen for the predetermined processing setting
Instruct the character to display the above explanation screen
In response to this, the explanation screen for the predetermined process setting is displayed on the display.
Display, and the display is used for the color processing setting.
The description screen on the color processing setting screen
In response to an instruction to the character to display the face,
An explanation screen for setting the color processing is displayed on the display.
It is characterized by [0008] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings.
This will be described in detail. FIG. 1 shows a digital color image processor according to the present invention.
1 shows an example of a schematic internal configuration of a management system. This system
Has a digital color image reader on top as shown.
(Hereinafter referred to as a color reader) 1 and a digital
Color image printing device (hereinafter referred to as color printer)
2). This color reader 1 has a color
The original document is separated by a disassembling means and a photoelectric conversion element such as a CCD.
Color image information by color
Convert to image signal. In addition, the color printer 2
Reproduce color images for each color according to digital image signals
And transfer it to the recording paper multiple times in digital dot form
Laser beam color pudding for electrophotography
It is. First, an outline of the color reader 1 will be described. Reference numeral 3 denotes an original, and 4 denotes a platen on which the original is placed.
The lath 5 is exposed and scanned by a halogen exposure lamp 10.
Converges the reflected light image from the original, and
A rod array lens for inputting an image to the camera 6;
5, 6, 7, and 10 are integrated as a document scanning unit 11.
Exposure scanning is performed in the direction of arrow A1. While scanning exposure
The color separation image signal read line by line is
The signal is amplified to a predetermined voltage by the sensor output signal amplifying circuit 7.
Input to a video processing unit to be described later via a signal line 501.
The signal is input and processed. Details will be described later. 501 is a signal
This is a coaxial cable to ensure a faithful transmission of the data. Faith
Reference numeral 502 denotes a drive pulse for the 1 × full color sensor 6.
Signal lines to be supplied, and the necessary drive pulses are supplied to the video processing unit.
All are generated in the knit 12. 8 and 9 are images to be described later.
White plate and white plate for white level correction and black level correction of image signal
And a black plate, which can be irradiated with a halogen exposure lamp 10.
Can obtain a signal level of a predetermined density by
Can be used for white level correction and black level correction of video signals
It is. 13 is a controller having a microcomputer
Control unit, which is operated by a bus 508
20, key input control and video processing unit
Of the document by the position sensors S1 and S2.
The position of the scanning unit 11 is determined via signal lines 509 and 510.
The scanning body 11 is moved by the signal line 503.
For driving the stepping motor 14 for driving
Ping motor drive circuit control, via signal line 504
Halogen exposure lamp 10 by exposure lamp driver
ON / OFF control, light intensity control, signal line 505
Digitizer 16 and internal keys, control of display, etc.
All controls of the reader unit 1 are performed. Document scanning
Was read by the exposure scanning unit 11 described above.
The color image signal is transmitted through the amplification circuit 7 and the signal line 501.
It is input to the video processing unit 12 and
Various processing described later is performed in the interface circuit
The data is sent to the printer unit 2 through the printer 56. Next, an outline of the color printer 2 will be described.
You. Reference numeral 711 denotes a scanner, which is an image from the color reader 1.
Laser output unit to convert image signal to optical signal, polyhedron (example
For example, an octahedron) polygon mirror 712, this mirror 71
Motor (not shown) for rotating 2 and f / θ lens
(Resolution lens) 713 and the like. 714 is the laser light
A reflecting mirror for changing the optical path, and 715 is a photosensitive drum
You. The laser light emitted from the laser output unit is a polygon mirror
712, the lens 713 and the mirror 714
Scans the surface of the photosensitive drum 715 linearly through
Scan) to form a latent image corresponding to the original image. 717 is a primary charger, and 718 is an entire surface.
Exposure lamp 723 rotates residual toner not transferred.
The cleaner section and the pre-transfer charger
Are disposed around the photosensitive drum 715. Reference numeral 726 denotes a photosensitive drum by laser exposure.
Developing unit for developing an electrostatic latent image formed on the surface of
731Y, 731M, 731C, 731
Bk is a developing switch for performing direct development in contact with the photosensitive drum 715.
Leave, 730Y, 730M, 730C, 730Bk
The toner hopper 732 for holding the spare toner
These screws are used to transfer the imaging agent.
730Y to 730Bk, toner hopper 730Y to 7
Developing unit by 30Bk and screw 732
726, and these members are used to rotate the developing unit.
It is arranged around the turning axis P. For example, yellow
When forming a toner image, the yellow toner
When developing an image and forming a magenta toner image,
The unit 726 is rotated about the axis P in FIG.
The developing sleeve 7 in the magenta developing device
13M is provided. Similarly for cyan and black development
Operate. 716 is formed on the photosensitive drum 715
Transfer drum for transferring the transferred toner image onto paper,
19 is an arm for detecting the moving position of the transfer drum 716.
Actuator plate 719 is a actuator plate.
And the transfer drum 716 is at home position.
Position sensor for detecting movement to the
25 is a transfer drum cleaner, 727 is a paper press roller,
728 is a static eliminator and 729 is a transfer charger.
These members 719, 720, 725, 727, 729
It is arranged around the copying roller 716. On the other hand, reference numerals 735 and 736 denote sheets (sheets).
The paper cassettes 737 and 738 to be stored are the cassette 73.
Paper feed rollers for feeding paper from 5, 736, 739, 7
40 and 741 are ties for timing of paper feeding and conveyance.
Roller, which is fed and conveyed via these
The paper is guided by a paper guide 749 and the leading end is gripper described later.
Is wound around the transfer drum 716 while being carried by the
Move on to the process. Reference numeral 550 denotes a drum rotation motor, which is a photosensitive drum.
The drum 715 and the transfer drum 716 are rotated synchronously. 75
0 indicates that the sheet is transferred from the transfer drum 716 after the image forming process is completed.
Peeling claw to be removed, 742 conveys removed paper
Conveyor belt 743 is conveyed by the conveyor belt 742.
An image fixing unit for fixing the received paper;
43 has a pair of thermal pressure rollers 744 and 745. First, according to FIG.
Next, the control unit 13 will be described. (Control Unit) The control unit is
Video signal including a CPU 22 which is a microcomputer
Lamp driver 2 for processing control, exposure and scanning
1. Stepping motor driver 15, digitizer
16. The control of the operation panel 20 is performed by the signal line 508, respectively.
(Bus), 504, 503, 505, etc.
Program ROM 23, RAM 24, RA
Control organically according to M25. RAM 25 is battery 3
1 guarantees non-irritability. 505 is generally
The signal line for serial communication used is connected to the CPU 22 and the digital
From digitizer 16 by protocol with Iser 16
Entered by the operator. That is, reference numeral 505 denotes editing of a document, for example, transfer.
Coordinates, area instructions, copy mode instructions,
This is a signal line for inputting a magnification instruction or the like. The signal line 503 is
Scan speed and distance from CPU 22 to data driver 15
This is a signal line that gives instructions such as separation, forward movement, and backward movement.
Driver 15 is stepped by instruction from CPU 22
A predetermined pulse is input to the motor 14 to rotate the motor.
Give action. The serial I / Fs 29 and 30 are, for example,
Realized by serial I / F LSI etc. such as Tel Corporation 8251
This is a general type that is not
The circuit 16 and the motor driver 15 have similar circuits.
You. An interface between the CPU 22 and the motor driver 15
The interface protocol is shown in FIG. S1 and S2 are original exposure scanning units
A sensor for detecting the position of FIG.
Is the home position and the image at this location
The white level correction of the signal is performed. S2 is the original document
A sensor for detecting the presence of an exposure scanning unit,
This position is the reference position of the document. (Printer Interface) Referring to FIG.
Signals ITOP, BD, VCLK, VIDEO, HSY
NC and SRCOM (511-516) are shown in FIG.
Interface between the color printer unit 2 and the reader unit 1
Ace signal. Image signal read by reader unit 1
Signal VIDEO 514 is based on the above signals
It is sent to the linter unit 2. ITOP is the image feed direction (hereinafter
(Referred to as lower sub-scanning direction)
Once, that is, four colors (yellow, magenta, cyan, B
The transmission of the image in k) occurs once each, for a total of four times.
Wrapped around the transfer drum 716 of the color printer unit 2
The leading edge of the transferred transfer paper contacts the photosensitive drum 715
Image and position of the leading edge of the document when
Of the transfer drum 716 and the photosensitive drum 715 so that
Synchronized with rotation, video processing unit in reader 1
Sent and further interrupted by CPU 22 in controller 13
(Signal 511). CPU22 is IT
Image in the sub-scanning direction for editing etc. based on OP interrupt
Performs image control. BD512 is one of polygon mirrors 712
Occurs once per rotation, ie once per raster scan
Raster scan direction (hereinafter referred to as the main scan direction).
And the image read by the reader unit 1.
The signal is printed one line at a time in the main scanning direction in synchronization with the BD.
Sent to the data section 2. VCLK 513 is an 8-bit digital
A video signal 514 to the color printer unit 2.
Clock, for example, as shown in FIG.
The video data 51 is transmitted through the flip-flops 32 and 35.
4 is sent. HSYNC 515 is based on BD signal 512
It is created in synchronization with VCLK 513. Main scanning direction synchronization
Signal, which has the same period as BD, and has a VIDEO signal 5
14 is strictly transmitted in synchronization with HSYNC 515.
You. This is because the BD signal 515 is synchronized with the rotation of the polygon mirror.
Rotate the polygon mirror 712
Motor contains a lot of jitter, and is included in the BD signal
Synchronization causes jitter in the image, so the BD signal
Generated in synchronization with VCLK without jitter
This is because YNC515 is required. SRCOM is half duplex
4 is a signal line for two-way serial communication of FIG.
As shown in (C), the synchronization signal C sent from the reader unit
8-bit serial clock between BUSY (command busy)
Command CM is transmitted in synchronization with the
SBUSY (status busy) from printer
Status S in synchronization with the 8-bit serial clock between
T is returned. In this timing chart, the command
Status "3CH" returned for "8EH"
Indicates an instruction from the reader unit to the printer unit, an example
For example, color mode, cassette selection, and printer status information
Information such as jam, paperless, weight, etc.
Retrieval is all performed via this communication line SRCOM
You. FIG. 4A shows one four-color full-color image.
Timing check to send based on ITOP and HSYNC
Indicates a chart. ITOP 511 is one of transfer drums 716
A rotation, or a yellow image generated once every two rotations,
In the magenta image, in the cyan image, and in Bk
Image data is sent from the reader unit 1 to the printer unit 2,
Four-color superimposed full-color image is formed on transfer paper
You. HSYNC is, for example, 420 mm in the longitudinal direction of A3 image
If the image density in the feed direction is 16 pel / mm,
420 × 16 = 6720 times, which means that
At the same time, the timer circuit 28 in the controller circuit 13
Clock input, which is a predetermined number of counts
And, like interrupt HINT517 to CPU22
Has become. This allows the CPU 22 to control the image in the feed direction.
For example, control such as extraction and movement is performed. (Video Processing Unit) Next, FIG.
Accordingly, the video processing unit 12 will be described in detail. original
The manuscript was first illuminated by the exposure lamp 10 (FIGS. 1 and 2).
The reflected light is sent to the color reading sensor in the scanning unit 11.
The color is separated and read for each image by the
The signal is amplified to a predetermined level in a path 42. 41 is color reading
CCD that supplies a pulse signal to drive the sensor
The driver and the required pulse source are the system control
Is generated by the rule pulse generator 57. Figure 6
-Indicates a reading sensor and a driving pulse. FIG. 6 (a)
The main scanning is the color reading sensor used in this example.
62.5 μm (1/16
mm) as one pixel, 1024 pixels, that is, as shown in the figure.
One pixel is divided into G, B, and R in the main scanning direction.
Has a total of 1024 × 3 = 3072 effective pixels.
I do. On the other hand, each of the chips 58 to 62 is made of the same ceramic substrate.
Formed on the first, third, fifth (58, 60,
62) is on the same line LA, and the second and fourth are
Separated by the line (62.5 μm × 4 = 250 μm)
It is arranged on the line LB, and when reading the original, the arrow AL
Scan in the direction. Each of the 5 CCDs is numbered 1, 3, 5
The eyes are the drive pulse group ODRV518, the second and fourth are ED
Driven independently and synchronously by RV519
It is. O01A, O02A included in ODRV518,
E01A, E02 included in ORS and EDRV519
A and ERS are the charge transfer clocks in each sensor, respectively.
Charge reset pulse, the first, third, fifth and second,
Due to mutual interference with the fourth and noise limitations,
It is generated completely synchronously so as not to be in the data. Therefore, these
The pulse is generated from one reference oscillation source OSC 58 '(FIG. 5).
Is done. FIG. 7A shows ODRV518 and EDRV51.
9 is a circuit block for generating the timing chart 9 and FIG.
Figure 5 System control pulse generator
It is included in the generator 57. Generated from a single OSC 58 '
Clock K0535 obtained by dividing the original clock OLK0
Is the reference signal that determines the ODRV and EDRV generation timing
SYNC2 and SYNC3 are generated.
YNC2 and SYNC3 are signal lines connected to the CPU bus
A presettable counter 64 set by 539;
The output timing is determined according to the set value of 65, and SY
NC2 and SYNC3 are frequency dividers 66 and 67 and drive pulses
The generators 68 and 69 are initialized. That is,
All the oscillations are based on the HSYNC 515
Generated synchronously with CLK0 output from source OSC and all
ODRV is generated by the divided clock
518 and EDRV519 each pulse group
Obtained as a synchronized signal without
Can prevent signal disturbance. Here they synchronize with each other
The obtained sensor drive pulse ODRV518 is 1,
EDRV519 is attached to the third and fifth sensors.
Sensors 58, 59, 60, 61, 6
2, video signals V1 to V5 are synchronized with the drive pulse.
Output independently, for each channel shown in FIG.
Is amplified to a predetermined voltage value by an independent amplifier circuit 42,
OOS5 of FIG. 6B through the cable 501 (FIG. 1)
At timing 29, V1, V3, and V5
V2 and V4 signals are sent out at the timing and video processing is performed.
Input to the unit. Document input to video processing unit 12
Color image signal obtained by dividing into
Is G (green) at the sample / hold circuit S / H43.
), B (blue) and R (red)
You. Therefore, after S / H, 3 × 5 = 15 system signals
Processing system. FIG. 52 shows the input data for one channel.
A / D conversion circuit after sample hold processing and amplification
Digital data input to 45 and multiplexed
4 shows a timing chart for obtaining A / Dout. Figure
FIG. 8 shows a processing block diagram. From the above-mentioned five-chip equal-size color sensor
The read analog color image signal has 5 channels each.
The analog color signal processing circuit of FIG.
Is entered. Circuits A to E corresponding to each channel are the same
Since the circuit is a circuit, the waveform timing of FIG.
It will be explained together. The input analog color signal
G → B → R like 52SiGA, sample
Sample circuit for each color by hold circuit (S / H) 250
Pulse SHG535, SHB536, SHR537
Is converted to parallel for each color. FIG. 52 VDG1, VDB
1, VDR1 (538-540) where each color is separated
Signals 538 to 540 are turned off by amplifiers 251 to 253
After the set (Fig. 52O characteristic) adjustment is made, the low-pass
Filters (LPF) 254 to 256 other than signal components
After cassetteting the band, gain with amplifiers 257-259
After adjustment (G characteristic in FIG. 53), the signal of one system is
Pulse GSEL, BSEL, RSEL to chipplex
(544 to 546), the MPX260 becomes one system.
A / D conversion and conversion to a digital value (ADOU
T547). Multiplex with MPX260 in this configuration
A / D conversion after scanning, G, B, R each 3 colors 5 ch
Performs color signals of 15 channels in total with 5 A / D converters
Will be The same applies to the B to E circuits. Next, in this embodiment, four lines are used as described above.
Minute (62.5 μm × 4 = 250 μm)
5 thousand divided into 5 areas in the main scanning direction
Since the original is read by the bird-like sensor, it is shown in FIG.
As it is, the pre-scanning channels 2 and 4 remain
In positions 1, 3, and 5, the reading position is shifted. So this
To correctly connect the lines using multiple lines of memory.
ing. FIG. 54 shows the memory configuration of the present embodiment.
To 74 are memories each storing a plurality of lines.
And has a FiFo configuration. That is, 70, 72, 7
4 is 1024 pixels per line for 5 lines, 71 and 7
3 has a capacity of 15 lines, and the last pointer WPO
75, one line from the point indicated by WPE76
Data is written, and writing for one line is completed.
Upon completion, WPO or WPE is incremented by one. WPO75
Is common to channels 1, 3 and 5, WPE76 is 2 and 4.
It is common. OWRST 540 and EWRST 541 are
The values of the respective line pointers WPO75 and WPE76 are
This signal is initialized and returned to the beginning.
RST 543 is a read pointer (pointer for reading)
Is a signal for returning the value of. Channels 1 and 2 now
An example will be described. As shown in FIG.
4 lines ahead of channel 1
For example, channel 2 reads a line for a line
Four lines after writing to Fo memory 71
Channel 1 reads the line. So to memory
Advance WPE by 4 ahead of write pointer WPO
When reading from the FIFO memory,
When read with the load point value, channels 1, 3, 5
Channels 2 and 4 read the same line,
The misalignment is corrected. For example, in FIG.
In channel 1, WPO has WPO in the first line 1 of the memory.
At the same time, channel 2 has the 5th line
Of 5. If you start from this point, WPO
Shows 5, WPE points to 9 and both pointers
Lines on the manuscript are written in five areas.
O and RPE (read pointer)
You just need to read it out cyclically. FIG.
This is a timing chart for performing the
Data is sent line by line in synchronization with HSYNC 515
Come. EWRST541 and OWRST540 are as shown in the figure.
Is generated with a shift of 4 lines, and ORST542
Is the capacity of the FiFo memories 70, 72 and 74, and therefore 5
ERST543 for each line, 15 lines for the same reason
Is generated every time. On the other hand, when reading, first, channel 1
5 times faster than 1 line, then channel 2
1 line, then 3 channels, 4 channels,
5 channels and read sequentially, channel between 1HSYNC
To get connected signals from channels 1 to 5.
You. Further, 1RD to 5RD (544 to 548)
8 shows an effective section signal of a channel read operation. What
Note that image connection between channels using this Fifo memory
The control signal for the memory control is the memory control circuit 57 'in FIG.
Generated by Circuit 57 'is a discrete circuit such as TTL.
Although it is composed of a circuit, it is not the gist of the present invention.
Therefore, the description is omitted. Also, the memory is a blue image.
Component, green component, and red component
However, since it has the same configuration, the explanation is limited to one color.
Was. FIG. 10 shows a black correction circuit. As shown in FIG.
The black level output of channels 1 to 5 is the light input to the sensor
When the amount is very small, variation between chips and between pixels is large.
When this is output as is and the image is output, the image data
Streaks and unevenness occur in the part. Therefore, the output variation of this black part
Key needs to be corrected.
U. Prior to the copy operation, move the original scanning unit to the original platen
Black plate with uniform density located in the non-image area at the edge
Move to the position, light the halogen, and
Input to this circuit. In this image data, one line is
A is stored in the selector 82 to be stored in the bell RAM 78.
Selection (d), gate 80 is closed (a), 81 is opened. Immediately
That is, the data line is connected in the order of 551 → 552 → 553,
The address input of the RAM is initialized by HSYNC
C is output so that the output of the address counter 84 is input
And the black level signal for one line is stored in the RAM 78.
(The above is the black reference value capture mode). Image loading
At times, the RAM 78 is in a data read mode,
Data line 553 → 557 to B input of subtractor 79 every time
Lines are read and input for each pixel. That is, this
When the gate 81 closes (b), the gate 80 opens (a). Follow
And the black correction circuit output 556 is the black level data DK (i)
For example, in the case of a blue signal, Bin (i) -DK
(I) = Bout (i) (black correction mode
Do). Similarly, green Gin and red Rin are 77G,
Similar control is performed by 77R. Also for this control
Control lines a, b, c, and d of each selector gate
(FIG. 222) Latch 85 assigned as I / O
Is performed under CPU control. Next, in FIG. 11, FIG. 57 and FIG.
The correction (shading correction) will be described. White level correction
Move the document scanning unit to the position of the uniform white
The lighting system, optical system,
Corrects sensor sensitivity variations. Basic circuit configuration
As shown in FIG. The basic circuit configuration is the same as FIG.
However, in the black correction, the correction was performed by the subtractor 79.
However, the only difference is that the multiplier 79 'is used in the white correction.
Therefore, the description of the same part is omitted. During color correction, first
The scanning unit is positioned on the uniform white plate (home position
), That is, prior to the copying or reading operation.
First, the exposure lamp is turned on, and image data of uniform white level
Is stored in the correction RAM 78 'for one line. For example, Lord
If it has a width in the scanning direction A4 longitudinal direction, 16 pe
16 × 297 mm = 4752 pixels at 1 / mm, that is,
At least, the capacity of RAM is 4752 bytes, as shown in FIG.
In particular, the white plate data Wi of the i-th pixel (i = 1 to 475)
In the case of 2), the RAM 78 'stores the white plate for each pixel.
Data is stored. On the other hand, for Wi, the i-th pixel
Of the normal image read data Di after correction Do
= Di × FFH / Wi. So the control
The latch 85 ′ is sent from the CPU in the roller (FIG. 222).
The gate 80 'is closed for a', b ', c', d 'and 8
1 'is opened, and B is selected by selectors 82' and 83 '.
RAN78 'can be accessed by CPU
And Next, FFH / Wo, W₁To
FF / W₁.. Are sequentially replaced to replace data.
When the processing is completed for the blue component of the color component image (St in FIG. 58)
epB) Similarly, green component (StepG) red component
(StepR) and original image data to be input afterwards
Do = Di × FFH / Wi is output for Di
Gate 80 'is open (a'), 81 'is closed (b'),
A is selected in the collector 83 'and read from the RAN 78'.
The obtained coefficient data FFH / Wi is converted to a signal line 553 → 557.
And the power of the original image data 551 input from one side
Is calculated and output. With the above configuration and operation, the speed is increased.
This makes it possible to perform correction for each pixel. Further, in this configuration, an image for one line
Data is input at high speed, and RD, W
Since it is possible to access R, any position on the document, for example,
As shown in FIG. 12, a point P at coordinates (xmm, ymm) on the document
When it is desired to detect the component of the image data of
Xx) Move the line and scanning unit and move this line forward
Fetch into RAM 78 'by the same operation as described above
By reading the data of the (16 × y) pixel, B,
The ratio of G and R components can be detected.
Data acquisition mode ”).
The average of multiple lines (hereinafter referred to as “average calculation mode”).
Density histogram (called "Histogram mode")
It is easily understood by those skilled in the art that
Will get. As described above, the black level feeling of the image input system
Degree, dark current variation, variation between each sensor, optical system light
The black level is based on various factors such as the amount variation and the white level sensitivity.
Performs bell and white level correction and averages over the main scanning direction.
Color image data proportional to the input light intensity
The logarithmic transformation is performed in accordance with the human eye's relative luminous efficiency characteristics.
It is input to the road 86 (FIG. 5). Here, white = 00H,
Black = FFH is converted as much as possible, and
Image source input to the server, for example, a regular reflective original
And transparent originals such as film projectors, and the same transparent
For negatives, positive films or films
The gamma characteristics input in the exposure state are different
For this reason, as shown in FIG.
Backup tables), which can be used depending on the application.
I can. The switching is performed by the signal lines lg0, lg1, lg2 (5
60-562), and the I / O of the CPU (22).
This is performed by inputting an instruction from the operation unit etc.
You. Here, the data output for each of B, G, and R is
It corresponds to the density value of the output image and corresponds to B (blue).
Output is relative to the amount of yellow toner, G (green)
Represents the amount of magenta toner, and cyan represents R (red).
Color image data.
Are associated with Y, M, and C. Each of the original images obtained by logarithmic conversion
Color component image data, that is, a yellow component, a magenta component,
The following color correction is performed on the cyan component. Color
Color separation filters arranged for each pixel on the reading sensor
As shown in FIG. 14, the spectral characteristics of the
The color toner that is transferred
-(Y, M, C) also has an unnecessary absorption component as shown in FIG.
It is well known. Therefore, each color component image data
For Yi, Mi and Ci, [0034] [Outside 1]Masking correction that calculates the primary expression of each color and performs color correction
Is well known. Further, by Yi, Mi and Ci, M
in (Yi, Mi, Ci) (of Yi, Mi, Ci)
Minimum value), and use this as the sumi (black)
The operation of adding the toner (smearing) and responding to the added black component
Color removal (UCR) operation to reduce the amount of each color material to be added
Well done. Fig. 16 shows masking, summing and UC
The circuit configuration of R is shown. What is unique about this configuration It has two masking matrices and one signal line
"1/0" can be switched at high speed The presence / absence of UCR is one signal line “1/0” and high.
I can switch quickly It has two circuits to determine the amount of smear.
I can switch quickly It is in the point. First, prior to reading the image,
Matrix coefficient M of 1₁, The second matrix count M_TwoTo C
The setting is made from the bus connected to the PU 22. In this example [0035] [Outside 2] Is M₁Are in registers 87-95,_TwoIs 96-104
Is set. 111-122, 135, 131
Are selectors, and A is set when the S terminal is “1”.
Select, B when "0". Therefore, the matrix M₁
Is selected. Switching signal MAREA 564 = "1"
And the matrix M_TwoIs set to “0”. Also
123 is a selector, and the selection signal C₀, C₁(56
6, 567) based on the truth table of FIG.
b and c are obtained. Selection signal C₀, C₁And C_TwoIs the output
For example, in the order of Y, M, C, Bk
To (C_Two, C₁, C₀) = (0,0,0), (0,0,
1), (0, 1, 0), (1, 0, 0), and even monochrome
Desired color correction by setting (0, 1, 1) as a signal
Obtained color signal. Now (C₀, C₁, C_Two) = (0,
0, 0) and MAREA = "1", the selector
The outputs (a, b, c) of 123 include registers 87, 8
8, 89, thus (a_Y1, -B_M1, -C_C1) Comes out
Is forced. On the other hand, from the input signals Yi, Mi, Ci, Min
Black component signal calculated as (Yi, Mi, Ci) = k
574 becomes Y = ax−b (a and b are constants) at 134
After the primary conversion, a subtractor 1 (through the selector-135)
24, 125 and 126 are input to the B input. Each subtractor
In 124 to 126, the under color is removed and Y = Yi− (ak−
b), M = Mi- (ak-b), C = Ci- (ak-
b) is calculated and via signal lines 577, 578, 579
And multipliers 127, 128 and 12 for the masking operation.
9 is input. The selector-135 outputs the signal UAREA5.
UAREA 565 is controlled by the UCR (below).
High-speed switching between color removal), yes and no with "1/0"
It has a functional configuration. Multipliers 127, 128, 1
29 has (a)_Y1, -B_M1, −
C_C1) And B input are as described above [Yi- (ak-b), M
i- (ak-b), Ci- (ak-b)] = [Yi, M
i, Ci] are input, so that
And the output Dout is C_Two= 0 condition (YorMorC
Yout = Yi × (a)_Y1) + Mi × (−b_M1)
+ Ci × (-C_C1), Masking color correction, under color
Yellow image data subjected to the removal processing is obtained.
In the same way Mout = Yi × (−a_Y2) + Mi × (b_M2) + Ci × (−C_C2) Cout = Yi × (−a_Y3) + Mi × (−b_M3) + Ci × (C_C3) Is output to Dout. Color selection is
-According to the development order of the printer (C₀ , C₁ , C_Two )
It is controlled by the CPU 22 according to the table of FIG.
Registers 105 to 107 and 108 to 110 are monochrome
The register for image formation, the masking color correction described above and
According to the same principle, MONO = k₁ Yi + 1₁ Mi + m
₁ Each color is obtained by weighted addition using Ci. Cut
Return signal MAREA564, UAREA565, KAR
As described above, the EA587 has a coefficient map for masking color correction.
Trix M₁ And M_Two UAREA565
Is high-speed switching with and without UCR, KAREA58
7 is a black component signal (signal line 569 → selector 131
Output to Dout), the primary conversion switching, that is, K
= Min (Yi, Mi, Ci), Y = ck−d or
Of Y = ek−f (c, d, e, and f are constant parameters)
This is a signal that changes the characteristics at high speed. For example, one copy screen
Masking coefficient for each area within UCR
Or a configuration that can change the amount of sumi for each area
It has become. Therefore, image input software with different color separation characteristics
Source images, or multiple images with different black tones
And the like can be applied when synthesizing as in this embodiment.
It is good. Note that these area signals MAREA, UARE
A, KAREA (564, 565, 587) will be described later
It is generated by the area generating circuit (FIG. 251). FIGS. 17, 60, 61, and 62 show the regions.
Signal generation (MAREA 564, UAREA 56
5, KAREA587 etc.). Territory
The area refers to, for example, a hatched portion in FIG.
61 in the sub-scanning direction A → B for each line
It is distinguished from other areas by signals like the timing chart AREA.
Separated. Each area is specified by the digitizer 16 in FIG.
You. FIG. 17 and FIG. 60 show the generation position and section of this area signal.
The length and the number of sections are programmable by the CPU 22.
This shows a configuration in which a large number can be obtained. In this configuration,
One area signal is one bit of RAM that can be accessed by the CPU.
For example, n area signals AREA0 to AREA0
There are two n-bit RAMs to obtain AREAn
(Figs. 60, 136, 137). Now, in FIG.
To obtain similar area signals AREA0 and AREAn
And RAM address x₁ , X_Three "1" to bit 0 of
Then, all bits 0 of the remaining address are set to "0".
On the other hand, RAM address 1, x₁ , X_Two , X_Four "1"
To set all bits n of other addresses to “0”.
You. In synchronization with a constant clock based on HSYNC,
Read data in RAM sequentially and sequentially
And, for example, address x₁ And x_Three Data "1" is read at
Is spilled out. This read data is shown in FIG.
J, K of JK flip-flops of 8-0 to 148-n
The output is toggled, that is, RA
When "1" is read from M and CLK is input, the output
AREA changes from “0” to “1” and “1” to “0”.
An interval signal such as 0, and thus a domain signal, is generated. Ma
If data = "0" over all addresses,
No area section occurs and no area is set. Figure 60 is a book
136 and 137 are the above-described RAMs.
You. This is used for switching the area section at high speed.
For example, data is read from the RAMA 136 line by line.
During the operation, the CPU 22
(FIG. 2) Memory write operation for setting a different area
Operation, the section is generated alternately and the CPU
Switch to memory writing. Therefore, the hatched area in FIG.
Is specified, RAMA and A → B → A → B → A
RAMB is switched, which is shown in FIG.
_Three , C_Four , C_Five) = (0,1,0), VCLK
The counter output counted by
(A) to the RAMA 136 through the
a), gate 142 is opened, gate 144 is closed and RAM
A136, and the total bit width and n bits are J-
K flip-flops 148-0 to 148-n
And AREA0 to AREAn according to the set value.
An interim signal is generated. Writing from CPU to B
Between address bus A-Bus, data bus D-Bus and
And the access signal R / W. On the contrary, RAMB13
Generate an interval signal based on the data set to 7
Case (C_Three , C_Four , C_Five ) = (1,0,1)
In the same way, data from the CPU to the RAMA 136 can be read.
Data can be written (hereinafter, these two RAMs
A-RAM, B-RAM, C_Three , C_Four , C_FiveARE
Called A control signal (ARCNT) ... C_Three , C_Four , C_Five Is
Output from the CPU I / O port). FIG.
The following table shows the correspondence between data and signal names. Next, according to FIG. 18, FIG. 63 and FIG.
2 shows a circuit configuration of conversion. The color conversion here is
Each color component data (Yi, Mi, Ci) input to the road
Has a certain color density, or the color component ratio
When you have a, say to replace it with another color. example
For example, only the red (hatched portion) of the original in FIG. 63 is changed to blue.
Say a thing. First, each color data (Y
i, Mi, Ci) are averaging circuits 149, 150, 15
1 is averaged in units of 8 pixels, while one is averaged by an adder 155.
(Yi + Mi + Ci) is calculated, and the dividers 152 and 15 are calculated.
3, 154 input to B input, the other input to A input respectively
The calculated color component ratio is yellow ratio ray = Yi / Yi +
Mi + Ci, magenta ratio ram = Mi / Yi + Mi +
Ci, cyan ratio rac = Ci / Yi + Mi + Ci
To obtain signal lines 604, 605, and 606, respectively.
And input to the window comparators 156 to 158.
You. Here, the ratio of each color component set from the CPU bus
Upper and lower limits, and therefore (yn, mu, cu) and (y
l, ml, cl) and the above ratio is included.
When yl ≦ ray <yu, output = “1”, ml ≦ r
When am <mu, output = “1”, and cl ≦ rac <cu
Output = "1", input when the above three conditions are met
It is determined that the input color is the desired color, and the three-input AND 165
Output = 1, and S of selector 175₀ Enter to input
Is done. The adder 155 is provided from an I / O port of the CPU 22.
Output when the output signal line CHGCNT607 is "1" [0038] [Outside 3] When "0", the output 603 = 1 is output. Follow
The output of the dividers 152, 153, 154 when
The A input is output as it is. That is, at this time, the register
159 to 164 are not a desired color component ratio but a color density.
The data is set. 175 has 4 inputs and 1 output
Selector, and inputs 1, 2, and 3 have the desired
Color data as Y component, M component, and C component, respectively.
4 indicates that the scanned original image
Data Vin that has been subjected to king color correction and UCR is input
Connected to Dout in FIG. Switching input S₀
Is true for color detection. That is, when a predetermined color is detected
"1", otherwise "0", S₁ Is the region occurrence in FIG.
Area signal CHAREA generated by the circuit^O At 615, finger
When it is “1” inside the fixed area and “0” outside the area, and is “1”
Color conversion is performed, and when "0" is not performed. S_Two , S_Three Entering
Force C₀ , C₁ (616, 617) is C in FIG.₀ , C
₁ Signal (C₀ , C₁ ) = (0,0),
(0,1), (1,0), color printer
Image formation, magenta image formation, cyan image
An image is formed. The truth table of the selector 175 is shown in FIG.
Show. Registers 166 to 168 store desired color components after conversion.
Ratio or color component density data is set by the CPU.
When y ', m', and c 'are color component ratios, CHGCNT6
07 = “1”, the output 6 of the adder 155
03 becomes (Yi + Mi + Ci), and the multipliers 169-1
71, the selector inputs 1, 2,.
3 have (Yi + Mi + Ci) × y ′ and (Yi +
(Mi + Ci) × m ′ and (Yi + Mi + Ci) × c ′
And color-converted according to the truth table diagram 63. one
If the methods y ', m', and c 'are color component density data, CHG
CNT = “0” and signal 603 = “1”, but
Therefore, the outputs of the multipliers 169 to 171 and therefore the selector 17
Data (y ′, m ′, c ′)
Is input as is and the color component density data is replaced.
Color conversion is performed. Area signal CHAREA⁰ 615
Since the section length and number can be set arbitrarily as described above,
As shown in FIG.₁ , R_Two , R_Three Only for this
By applying color conversion and preparing multiple circuits in FIG.
For example, the region r₁ Inside is red → blue, r_Two Inside is red → yellow, r_Three
Inside is color conversion over multiple areas such as white → red, multiple colors
Is also possible in high speed and in real time. This is
The same color detection → conversion circuit as the
The selectors 230 output the outputs A, B, C,
Data required from D is based on CHSEL0 and CHSEL1.
Selected and output to the output 619. Also suitable for each circuit
The corresponding area signals are CHAREA0-3 and CHSELA3.
0 and 1 are also generated by the area generating circuit 51 as shown in FIG.
Is done. FIGS. 19, 65 and 66 show the present system.
Control the color balance and color shading of the output image in
Is a gamma conversion circuit for
Data conversion using a backup table)
LUT data is rewritten according to the input specification from the section
available. Write data to RAM 177 for LUT
In this case, the selection signal line RAMSL623 is set to “0”.
Thus, the selector 176 selects the B input and the gate 17
8 is closed, 179 is open and bus AB from CPU 22
US and DBUS (address data) are connected to RAM 177.
Then, data writing or reading is performed. one
After the conversion table is created, RAMSL623 =
"1" and the video input from Din 620 is RAM
177 is input to the address input and is added as video data.
Leasing, desired data is output from RAM and opened
Input to the next-stage scaling control circuit through the gate 178
It is. The gamma RAM contains yellow, magenta,
Cyan, black, MONO, 5 types, at least 2 types
(Figs. 65A and 65B).
C as in FIG.₀ , C₁ , C_Two (566, 567, 56
8) generated by the area generating circuit diagram 60.
By GAREA 626 performed, for example, as shown in FIG.
Area A is the gamma characteristic of A, and area B is the gamma characteristic of B.
It can be obtained as a single print with the property
Configuration. The magnification characteristics of the gamma RAM and the two types A and B
, And can be switched at high speed for each area,
By adding this, more characteristics can be cut at high speed.
It is also possible to frog. Dout 625 in FIG.
Input to the input Din 626 of the variable power control circuit of FIG.
You. The RAM for gamma conversion is clearly shown in FIG.
As in kana, the characteristics can be switched individually for each color.
Operation from the LCD touch panel keys on the operation panel.
Rewritten by the CPU 22 in association with the work. example
For example, the density adjustment key e on P000 (standard screen) in FIG.
Or, if the operator touches f, touch e from the center 0
In this case, the setting moves from -1 to -2 to the left as shown in FIG.
The characteristics in the RAM 177 are -1 → -2 → -3 → -4
Is selected and rewritten. Conversely, if you touch f, the characteristics
Is selected as + 1 → + 2 → + 3 → + 4 and RAM 177 is
It is similarly rewritten. That is, in the standard screen, e
Or touch the f key to find Y, M, C, Bk
Or the entire MONO table (RAM 177) is rewritten
The density can be adjusted without changing the color tone. one
, The screen shown in Fig. 37P420 (<color create> mode
Color balance adjustment).
In order to adjust, each of Y, M, C, Bk is individually
Only the area in the RAM 177 is rewritten. That is, for example,
Touch key in screen P420 when changing the color tone of the yellow component
-Y₁ When you press, the black band display extends upward and the conversion characteristics
Is y as in FIG. 66 4Y₁Direction, and therefore the yellow component
In the direction of darkening, touch key y_Two Touch and y
_Two Characteristics are selected in the direction, and the direction in which the yellow component becomes lighter
become. That is, in this operation, the density changes only for the single color component.
Color can be changed. The same applies to M, C, and Bk.
is there. FIG. 20 180 and 181 show the main running respectively.
Inspection direction, one line, for example, 16 pel / mm, A4 length
16 × 297 = 4752 pixels with 297 mm width
Fifo memory with quantity, AWE, BWE =
Write operation to memory during “Lo”, ARE, BRE =
A read operation of “Lo” section is performed, and ARE = “Hi”
The output of A is high when BRE is high, and the output of B is high when BRE = "Hi".
Each output is connected to a wire
The result is ORed and output as Dout 627.
FifoA, FifoB180, 181
Write operation that operates with WCK and RCK (clock)
Read counter (less than
Usually general because the pointer of the section is advanced
Video data in the system as
Sends the transmission clock VCLK588 to the rate multiplier 6
30. The thinned CLK is given at 30 and VCK588 is applied to RCK.
If the CLK that does not thin out is given, the input data to this circuit
Is scaled down on output, and vice versa.
It is well known that FifoA and FifoB are
The site operation is performed alternately. In addition, the FIFO memory 18
0, 181 W address counter 182, R address
The counter 183 outputs an enable signal (WE, RE... 63)
5, 636) is clocked only during the period of enable “Lo”.
RST (634) = "Lo"
Since the configuration is more initialized, for example,
RST (in this configuration, the synchronization signal HS in the main scanning direction)
YNC), then n₁ M pixels from the pixel
AWE = “Lo” (same for BWE)
And write n_Two ARE = m pixels from the pixel
Read pixel data by setting it to “Lo” (same for BRE)
Move to WRITE data → READ data in the same figure
I do. That is, AWE (and BWE), ARE
(And BRE) occurrence position and section
The image is arbitrarily moved in the main scanning direction as shown in FIG.
In combination with the aforementioned WCK or RCK thinning
More variable and moving control can be easily performed. This circuit
AWE, ARE, BWE, and BRE input to
The raw circuit diagram 60 is generated as described above. In FIG. 20, FIG. 67 and FIG.
After the scaling control is performed in the main scanning direction, FIGS.
69, edge enhancement and smoothing (smoothing) in FIG.
Is performed. FIG. 21 is a block diagram of this circuit.
The memories 185 to 189 each store one line in the main scanning direction.
Capacity, and a total of 5 lines are sequentially stored cyclically
It has a Fifo configuration that is output in parallel at the same time.
You. 190 is a commonly used second-order differential spatial filter
And the edge component is detected, and the output 646 is 196
A gain having the characteristic shown in the graph of FIG. 21 is applied. Figure
The shaded portion of the graph 21 indicates the component output by edge enhancement.
That is, to remove small ones, that is, noise components,
Has been pumped. On the other hand, buffer memory output for 5 lines
Are input to the smoothing circuits 191 to 195, respectively.
The pixel blocks of the five sizes shown in FIG.
Averaging is performed on a lock-by-lock basis.
5, the desired smoothed signal is output by the selector 197.
Selected. The SMSL signal 651 is an I / O signal of the CPU 22.
Output from the port, and a finger from the operation panel
It is controlled in association with the setting. Further, 198 is a divider.
For example, if 3 × 5 smoothing is selected, CP
"15" is set by U22 and 3x7 smoothing
Is selected, “21” is set by the CPU 22 and
Leveled. The gain circuit 196 is a look-up table.
(LUT) configuration.
9 to which the data is written by the CPU 22.
M, and when the input EAREA 652 is set to “Lo”,
The output is set to "0". Furthermore, this edge strength
Key control and smoothing control are performed by touching the LCD on the operation panel.
It corresponds to the panel screen, and the screen of FIG. 69 (Fig. 2-7P
430), in the direction of strong <sharpness> 1, 2, 3, 4
The conversion characteristics of the gain circuit
Rewrite by CPU22 as shown in the graph of FIG.
Can be On the other hand, 1 'in the <sharpness> weak direction,
When operated by the operator 2 ', 3', 4 ', select
The switching signal SMSL652 of the
Block size of 3 × 3, 3 × 5, 3 × 7,
It is selected to be as large as 5 × 5. 1 × 1 at center point C
Is selected, and the gain circuit input EAREA651 = “L”
o ”, and the input Din is smoothed and edge-enhanced.
Neither is performed, and Dout is set to the output of the adder 199.
Output. In this configuration, for example,
Moiré is improved by performing smoothing,
Also, the edges of characters and line drawings are sharpened by performing edge enhancement.
Although the sharpness is improved, the halftone dot manuscript and the character
When in one document, for example, smoothing to improve moiré
Texturing is blurred when embossing is applied,
In order to improve the drawback of the strong
EAREA651 and SMSL generated in circuit diagram 60
By controlling 652, for example, 3
× 5 smoothing is selected, and EAREA is selected as shown in FIG.
651 like A ', B'
When applied to the original, moiré is modified for tint images.
And sharpness is improved for character areas. signal
TMAREA660 generates an area like EAREA651
Generated by the circuit 51 and output when TMAREA = "1"
When Dout = “A + B” and TMAREA = “0”, Do
out becomes “0”. Therefore, the control of TMAREA 660
For example, a signal as shown in FIG.
Then, the hatched portion (the inside of the rectangle) is extracted, and FIG.
-2 generates a signal like the shaded area (inside the rectangle)
A clear (white outline) is performed. FIG. 5 shows a document 200 placed on a platen.
Document coordinate recognition circuit that recognizes the coordinates of the four corners
In the internal register, and reserve
After the scan, the CPU 22 reads the coordinate data from the register.
Read. Detailed description in JP-A-59-74774.
It is shown and will not be described in detail. However, original document position recognition
In the preliminary scan for, the black interpolation shown in FIGS.
After positive and white correction, for masking calculation shown in FIG.
The coefficient is k₁ , L₁ , M₁ For generating monochrome image data
Select C₀ , C₁ , C_Two Are (0, 1, 1),
UAREA565 = not to perform UCR (under color removal)
By setting it to “Lo”, the original
It is input to the document position recognition unit 200. FIG. 22 shows an operation panel unit according to the present invention.
A control unit of the liquid crystal screen and a key matrix. FIG.
The liquid crystal controller 201 of FIG.
And key matrix 2 for key input and touch key input
09 to the command given to the I / O port 206
This operation panel is controlled. Display on the LCD screen
Point is stored in the font ROM 205, and
Refresh RA by program from PU22
Transferred to M204. LCD controller for display
Screen data is transferred to a liquid crystal display
203 to display a desired screen. On the other hand,
All forces are controlled by the I / O port 206, usually
The pressed key is detected by the
I / O port through the receiver 208 → CPU2
2 is input. FIG. 23 shows a film player in this system (FIG. 1).
The configuration when the projector 211 is mounted and connected is shown.
The same numbers as those in FIG.
Reflection mirror 218, Fresnel lens 212, diffuser plate 2
13 on which a mirror unit composed of
The transparency of the film 216 projected from the projector 211
Scans the over-light image in the direction of the arrow with the original scanning unit
While reading the original document. Film 216
Is fixed by the film holder 215 and
The lamp 212 is turned ON / OF by the lamp controller 212.
F and the lighting voltage in the controller 13 to be controlled.
PJON65 from the I / O port of the CPU 22 (FIG. 2)
5, PJCNT657 is output. Lamp control
Is based on the value of the 8-bit input PJCNT657.
The lamp lighting voltage is determined as shown in FIG.
It is always controlled between Vmin and Vmax. At this time
Digital data is D_A ~ D_B It is. Figure 25 shows the film
Operation to read image from projector and copy
FIG. 71 shows an outline of the timing chart. S
1, the operator moves the film 216 to the film projector 2
11 and follow the operation procedure from the operation panel described later.
Therefore, shading correction (S2) and AE (S
The lamp lighting voltage Vexp is determined according to 3), and the printer 2
Is activated (S4). ITOP from printer (image
Prior to the leading edge synchronization signal) signal, PJCNT = Dexp
(Corresponding to the appropriate exposure voltage)
It becomes light quantity. A Y image is formed by the ITOP signal, and the next
D until exposure_A (Corresponding to minimum exposure voltage)
Turn on the lamp and fill it with the rush current when the lamp is on.
The deterioration of the element is prevented and the life is extended. Afterwards
After the M image formation, the C image formation, and the black image formation (S7
To S12), the lamp is turned off by setting PJCNT = “00”
I do. Next, according to FIGS. 29 and 73, the project
AE and shading correction in the projector mode
The following shows the management procedure. The operator controls the projector using the operation panel.
Mode, the operator first selects the filter to use.
The film is a color negative film or a color film
To select the image, black and white negative or black and white positive
You. If color negative, cyan color correction filter
The film carrier 1 with the projector
To the unexposed area (film
Base) into the film holder, and
LUM ASA sensitivity is 100 or more and less than 400 or 40
Select whether it is 0 or more and press the shading start button.
Press the button to set the projector lamp to the reference lighting voltage V₁ so
Light. Where the cyan filter is a color negative filter
Cuts the orange base portion of the filter, and R, G, B filters
The color balance of the color sensor attached
You. Also, take out the shading data from the unexposed area
As a result, dynamic
The space can be widened. If it is not a color negative film
Is the ND filter fitted (or filter
No) and set the LCD touch panel
Press the shading start key on the
Is the reference lighting voltage V_Two Lights up. actually
Operator selects between negative and positive films
The reference lighting voltage V₁ , V_Two Switching of film
It is good to recognize the type of carrier and automatically perform it
No. Next, the scanner unit moves near the center of the image projection unit.
To the average value of one CCD line or multiple lines.
Figure as shading data for each of R, G, B
11 RAM 78 ', projector run
Turn off the lamp. Next, the image film 216 to be actually copied
Set in the film holder 215 and adjust the focus if
If necessary, use the lamp lighting button on the operation panel
Turn on the projector lamp and adjust the focus visually
And then turn off the lamp with the lamp on button again
I do. When the copy button is turned on, the color
-Depending on the result of the selection
Is V₁ Or V_Two Automatically turns on when the
Rescan (AE) is performed. Prescan is copy
For determining the exposure level when projecting film
Then, the following procedure is performed. That is, the image projection area
Predetermined R signals of multiple lines are calculated by CCD
As shown in FIG.
Is created as shown in FIG.
Creation mode "). From this histogram, the max shown in the figure
Value is calculated and the level of 1/16 of the max value is histogram
Crosses the maximum and minimum R signal values Rmax and Rmin
Ask for. And the operator's first selection
The lamp light quantity multiple α is calculated according to the system type. The value of α is
Α = 255 / Rma for color or monochrome positive film
x, for black and white negative α = C₁ / Rmin, ASA sensitivity 4
Α = C for color negative less than 00_Two / Rmin, AS
Α = C for color negative with A sensitivity of 400 or more_Three / Rmi
It is calculated as n. C₁ , C_Two , C_Three Is the film
It is a value determined in advance by the comma characteristic, and is 255
The value is about 40 to 50 of the levels. α value is predetermined
Look-up table for projector lamp
Will be converted to output data to the variable voltage power supply.
You. Next, the lamp operating voltage V thus obtained is
The projector lamp is turned on, and the film type is
Logarithmic conversion table FIG. 3 and masking coefficient FIG.
6 is set to an appropriate value and normal copying operation is executed.
You. As shown in FIG.
8 tables from 1 to 8 by the switch signal
1 for reflective originals, 2 for color positive
3 for black and white positive, 4 for color negative (ASA400 not available)
Full) 5, color negative (ASA400 or more), 6 black and white
It can be used as a negative. The contents are R,
G and B can be set independently. FIG.
3 shows an example of the table contents. Thus, the copying operation is completed. Next file
When transferring to LUM copy, film layer properties (negative / positive,
Operator / black / white etc) changes
It is determined, and if it changes, the process returns to A in FIG.
If not, return to B and repeat the same operation again.
You. As described above, the film projector 211
Negative, positive, color, and black and white fill
Print output corresponding to the system, but this system
Enlarges the film image on the platen surface as can be seen in FIG.
Projected, few fine line drawings, and film
In particular, smooth reproduction of gradation is required
You. Therefore, this system uses the following color LBP
The gradation processing on the output side is the same as when printing from a reflective original.
I make them different. This is the printer controller 70
This is carried out by the PWM circuit (778) included in 0. The details of the PWM circuit 778 will be described below.
You. FIG. 26A is a block diagram of a PWM circuit.
FIG. 26B shows a timing chart. The input VIDEO DATA 800 is
Latch at the rising edge of VCLK 801 in latch circuit 900
And synchronized with the clock. (Figure (B)
800, 801) VIDEO output from latch
  LU composed of ROM or RAM for DATA 815
Tone correction is performed by T (look-up table) 901 and D
D / A conversion by the / A (digital / analog) converter 902
To generate one analog video signal,
The analog signal is sent to the next-stage comparators 910 and 911.
It is input and compared with a triangular wave described later. Comparator
The signals 808 and 809 input to the other are respectively set to VCLK.
Synchronized and individually generated triangular waves (Fig.
(B) 808, 809). That is, VCLK801
A synchronous clock 2VCLK803 having a frequency twice as high as
For example, the third frequency divided by 2 by the JK flip-flop 906
In accordance with the reference signal 806 for generating an angular wave,
08, and the other is 2VCLK
807 obtained by dividing the frequency by 6 by the 6-frequency dividing circuit 905 (FIG.
(B) 807) and is generated by the triangular wave generation circuit 909.
This is the formed triangular wave WV2. Each triangle wave and VIDEO
DATA is all VCLK as shown in FIG.
Generated in synchronization with Furthermore, each signal is synchronized with VCLK
Invert to synchronize with HSYNC 802 generated
The HSYNC that has been set up the circuits 905 and 906
Initialize at the timing of. By the above operation, CMP1
  910, CMP2 911 output 810, 811
Is, according to the value of the input VIDEO DATA 800,
A signal having a pulse width as shown in FIG. 72 is obtained. That is,
In the stem, the output of the AND gate 913 in FIG.
When “1”, the laser is turned on and a dot is printed on the print paper.
When the value is "0", the laser is turned off,
Nothing is printed. Therefore, the control signal LON (805)
Can be turned off. FIG. 72 shows "black" from left to right.
Shows how the level of image signal D changes to “white”
are doing. The input to the PWM circuit is “FF” for “white”,
Since “black” is input as “00”, the D / A converter
The output of 902 changes as indicated by Di in FIG. to this
On the other hand, the triangular wave is WV1 in (a) and WV2 in (b).
Output of CMP1 and CMP2
To move from "black" to "white" like PW1 and PW2, respectively
The pulse width becomes narrower. Also clear from the figure
When PW1 is selected, the dots on the print paper
P₁ → P_Two → P_Three → P_Four Of the pulse width
The amount of change has a dynamic range of W1. On the other hand, PW
If you select 2, the dot is P_Five → P₆ Formed at intervals of
The dynamic range of the pulse width is W2 compared to PW1
Each has tripled. By the way, for example, the printing density (solution
(Intensity) is about 400 lines / inch at PW1, and PW2
Hour is set to about 133 lines / inch. Also clearer than this
When PW1 is selected in a simple manner, if the resolution is PW2
It is about three times better than sometimes, but when PW2 is selected,
The dynamic range of the pulse width is about three times that of PW1
Since it is wide, the gradation is remarkably improved. So, for example,
PW1 is required when image resolution is required, and high gradation is required
In such a case, PW2 is selected by an external circuit to select SCRSE.
L804 is provided. That is, 912 in FIG.
A input when SCRSEL 804 is "0"
Selection, that is, when PW1 is "1" and PW2 is the output terminal O
And the laser is driven by the pulse width finally obtained.
Lights and prints dots. The LUT 901 is a table conversion for gradation correction.
ROM, but the address is 812, 813 K₁ , K
_Two , 814, and the video signal 815
VIDEO DATA input and corrected from the output
can get. For example, to select PW1, SCRSEL80
When 4 is set to "0", the output of the ternary counter 903 is all
It becomes “0” and the correction table for PW1 in 901 is selected.
Selected. Also K₀ , K₁ , K_Two Corresponds to the output color signal.
Switching, for example, K₀ , K₁ , K_Two = “0,
0, 0 ", yellow output;" 0, 1, 0 "maze
Output, cyan output when “1, 0, 0”, “1, 1,
When "0", black output is performed.
The gradation correction characteristic is switched for each image. This allows
Differences in image reproduction characteristics depending on the color of the laser beam printer
This compensates for differences in gradation characteristics. Again K_Two And K₀ , K
₁ It is possible to perform a wider range of gradation correction by combining
It is possible. For example, the gradation of each color according to the type of the input image
It is also possible to switch the conversion characteristics. Next, PW2
Set SCRSEL to “1” to select
The counter 603 counts the synchronization signal of the line and outputs “1”.
→ "2" → "3" → "1" → "2" → "3" → ... LU
It outputs to the address 814 of T. This enables gradation correction
By switching the table for each line, gradation
Further improvements are being made. This will be described in detail with reference to FIG. Same figure
For curve A in (A), for example, PW1 is selected, and the input data is
Change from “FF” or “white” to “0” or “black”
6 is a characteristic curve of input data versus print density when the image data is printed. standard
It is desirable that the characteristic be K, so that the gradation correction
B, which is the reverse characteristic of A, is set in the table. Same figure
(B) shows gradation compensation for each line when PW2 is selected.
Positive characteristics A, B, and C, and in the main scanning direction with the aforementioned triangular wave
Simultaneously when the pulse width in the (laser scan direction) is changed
In the sub-scanning direction (image feed direction),
Tones are provided to further improve the gradation characteristics. That is, the density change
Characteristic A dominates in the steep part of the process, and steep reproducibility
, The gentle gradation is reproduced by the characteristic C, and B is the middle
Reproduce the effective gradation for the part. Therefore, P
Even if W1 is selected, high resolution ensures a certain level of gradation
However, when PW2 is selected, very excellent gradation characteristics are maintained.
Obstructed. Further, regarding the above-described pulse width, for example, PW
In the case of 2, the pulse width W is ideally 0 ≦ W ≦ W2
However, the electrophotographic characteristics of laser beam printers
Pal shorter than a certain width due to the response characteristics of the user drive circuit, etc.
Dots are not printed (no response) at the width
  0 ≦ W ≦ wp, the region where the concentration is saturated FIG.
There is q ≦ W ≦ W2. Therefore, the pulse width and concentration
Pulse width changes between effective effective areas wp ≦ W ≦ wq
It is set to do. That is, input as shown in FIG.
From data 0 (black) to FF_H (White)
The pulse width changes from wp to wq, input data and concentration
And the linearity is further ensured. The video converted to the pulse width as described above
The signal is transmitted via line 224 to the laser driver 711.
L modulates the laser light LB. The signal K shown in FIG.₀ , K₁ , K
_Two , SCRSEL, and LON are printer controllers shown in Fig. 2.
Output from a control circuit (not shown) in the
1 is output based on the serial communication with
SCRSEL = "0" for reflective original, film project
When using the sensor, it is controlled to SCRSEL = "1".
Smooth gradation is reproduced. [Image Forming Operation] Now, corresponding to the image data,
Modulated laser light LB is a polygon rotating at high speed
The mirror 712 allows the mirror 712 to be horizontal at the width of the arrow AB in FIG.
High-speed scanning is performed, and the f / θ lens 13 and the mirror 714
And forms an image on the surface of the photosensitive drum 715 to
The corresponding dot exposure is performed. One horizontal scan of laser light is the original
It corresponds to one horizontal scan of the manuscript image.
(Sub scanning direction) It corresponds to a width of 1/16 mm. On the other hand, the photosensitive drum 715 is in the direction indicated by the arrow L in FIG.
At a constant speed, the drum's main scanning direction
The above laser beam scanning is performed, and the sub-scanning of the drum is performed.
Direction, the photosensitive drum 715 is rotated at a constant speed.
As a result, the planar image is sequentially exposed to form a latent image and
Good. From the uniform charging by the charger 717 prior to this exposure
→ Exposure described above → and toner by developing sleeve 731
The development forms a toner development. For example, color
Corresponding to the first original exposure scan in the
If developed with the yellow toner of Leave 731Y,
On the optical drum 715, the yellow component corresponding to the original 3
Toner image is formed. Next, the tip is held by a gripper 751.
The paper sheet 754 wound around the transfer drum 716
At the contact point between the photosensitive drum 715 and the transfer drum 716.
The transfer toner charger 729 converts the yellow toner image.
Transfer and form. The same process is performed by M (Magenta
Da), C (cyan) and BK (black) images
Repeat, superimpose each toner image on paper leaf 754
As a result, a full-color image is formed with four-color toner.
You. Thereafter, the transfer paper 791 is moved as shown in FIG.
Peeled from the transfer drum 716 by the peeling claw 750 and transported
The sheet is guided to the image fixing unit 743 by the feeding belt 742 and is fixed.
The transfer paper 79 is applied to the portion 743 by the hot-press rollers 744 and 745.
1 is fused and fixed. <Explanation of Operation Unit> FIG.
Is an explanatory diagram of the operation unit of the device, and the key 401 returns to the standard mode.
Key 402 for reset mode, which will be described later.
Enter key for setting, key 404 is the set number of sheets, etc.
Numeric keypad and key 403 for inputting numerical values
Clear / stop key for stopping during rear or continuous copying
ー 、 405 is the setting of each mode by touch panel keys and
The status of the printer 2 is displayed. Key 407
Is a section for specifying center movement in the movement mode described later.
The center move key and key 408
Document recognition key, key 406 for automatically detecting document position
Is a project that specifies the projector mode described later.
Key and key 409 restore the previous copy setting status
Recall key, key 410 is programmed in advance
For storing or recalling the set values of each mode
Key (M1, M2, M3, M4) and key 411
It is a registration key to Molly. <Digitizer> FIG. 32 shows digitizer 1
6 is an external view of FIG. Keys 422, 423, 424, 42
5, 426 and 427 are for setting each mode described later.
This is an entry key.
To specify the desired area or set the magnification
It is a coordinate position detection plate, and the point pen 421 has its coordinates
Is specified. These keys and coordinate input information
Receives data from the CPU 22 via the bus 505.
In response, these information are stored in RAM 24 and RA
It is stored in M25. <Description of Standard Screen> FIG.
FIG. The standard screen PO00 is being copied or being set
This screen is displayed when it is not
You can set the degree adjustment. The lower left of the screen is a so-called fixed form
Zooming can be specified. For example, touch key a (reduction)
Press to change the size and magnification as shown on screen PO10.
It is displayed. Touch key b (enlarge)
Press this button to display the size and magnification in the same way.
In the setting, three stages of reduction and three stages of enlargement can be selected. Return to the same size again
When pressing the touch key h (actual size), double the size of 100%
Rate. Next, when the display center touch key c is pressed,
Set and lower cassette can be selected. Also press touch key d
If you lower it, the cassette containing the paper
APS (Auto Paper Selection)
G) Mode can be set. Touch on the right side of the display.
Keys e and f are keys for adjusting the density of the printed image
Can be set during copying. The touch key g is
When operating this color copier, the explanation of each touch key
It explains how to make copies and how to make copies. In the description screen
The operator can see this screen and use it easily.
You. In addition to the explanation of the standard screen, each setting mode
Mode, explanation screens for each mode are provided.
You. The black striped display at the top of the screen
The status of each set mode is displayed.
And settings can be checked. Also, the lower
In the message display area, a book color copy like screen PO20
Messages such as the status of the device and an operation error are displayed.
Also, JAM and toner supply messages are displayed on the entire screen.
Is displayed on the printer section 16 and the paper is
It is easier to determine <Zoom Zoom Mode> Zoom Zoom Mode M
100 is a mode for changing the size of the original and printing
Yes, manual zoom magnification mode M110 and auto zoom
It is configured with a zooming mode M120. manual
The zoom magnification mode M110 is based on the X direction (sub scanning direction).
Independent magnification in Y direction (main scanning direction) in 1% units
Any arbitrary magnification by editor or touch panel
Can be set. Auto zoom magnification mode M120
Automatically adjusts the magnification according to the selected paper size.
Calculate and copy mode, XY independent auto change
XY, XY same rate auto zoom, X auto zoom, Y auto zoom
Can be specified. XY independent auto zoom
Size or selected area on the document
The magnification in the X and Y directions is independent so that
Automatically set. XY same rate auto zoom is XY independent
Calculated magnification of the zoom ratio The same magnification in both XY with the smaller magnification
It is scaled and printed. X auto scaling, Y auto scaling
Is a mode in which auto scaling is performed only in the X direction and only in the Y direction.
You. Next, the operation method of the zoom magnification mode will be described with reference to the liquid crystal panel.
This will be described using a panel screen. Digitizer 16 zoom key
-422 is pressed, the display is displayed on the screen P100 in FIG.
Change. If you want to set the manual zoom here,
X written on the coordinate detection plate 420 of the editor 16
And the point of intersection of the magnification in the Y direction with the point pen 421.
You. At this time, the display changes to screen P110, and the designated X and
And Y magnification values are displayed. Then
If you want to fine-tune the displayed magnification,
Direction only, the left and right keys of touch key b (up,
E) to adjust. When you want to make adjustments at the same XY rate
Uses the left and right keys of the touch key d, and displays the same
Up and down at a rate. Next, set the auto zoom
If you want to do so, from the screen P100,
Use the user 16 or press the touch key a to display the screen P1
The display is advanced to 10. So the four kinds of Autos mentioned above
, XY independent auto scaling, XY same rate P auto scaling, X
When specifying auto scaling and Y auto scaling,
Touch keys b and c, touch key d, touch key b
Press the touch key c to obtain the desired auto zoom.
Can be <Movement Mode> The movement mode M200 is 4
It consists of different movement modes, each center
Movement M210, corner movement M220, designated movement M23
0, binding margin M240. Center move M21
0 indicates that the original size or the specified area on the original is selected.
To be printed exactly in the center of the cut paper
Mode. The corner movement M220 is based on the document size or
Are the four corners of the paper where the specified area on the document is selected
This is the mode to move to any position. Here, as shown in FIG.
The print image is larger than the selected paper size.
Move from specified corner as start point
Is controlled as follows. The designated movement M230 is a
Move any area to any position on the selected paper
Mode. The binding allowance M240 is for sending the selected paper.
Move to the left and right of the binding direction to create a margin for the binding margin.
It is a mode that operates. Next, in this color copying apparatus, actual operation
The operation method will be described with reference to FIG. First, a digital tie
When the move key 423 of the user 16 is pressed, the display is on the screen P20.
Change to 0. On the screen P200, the four types of movement modes described above are displayed.
Select the code. When the center movement is designated, the screen P2
Press the touch key a of 00 to end the process. Corner movement
When touch key b is pressed, the display changes to screen P230,
Therefore, one of the four corners is designated. here,
Movement direction for actual print paper and screen P230
The correspondence with the designated direction is as shown in FIG.
-16 Do not change the paper orientation of the cassette selected on
It has the same image as the one on which it was placed.
To perform the designated movement, touch key c on screen P200.
Press to go to screen P210, and move to digitizer 16
Specify the destination position. At this time, the display changes to screen P211.
Can be further fine-tuned using the up / down keys in the figure.
It is like. The next time you want to move the binding margin,
Press the touch key d on the screen P200 to update the screen P220.
Use the pull-down key to specify the length of the margin. <Description of Area Designation Mode>
Mode M300, one or more areas on the document
Can be specified, and each area has its own trimming
Mode M310, masking mode M320, image
Arbitrary mode setting among the three release modes can be performed. here
The trimming mode M310 described in
Copy only the image inside the
Do M320 is a white image of the inside of the specified area.
Click to copy. Also, image separation mode M3
30 further includes a color mode M331 and a color conversion mode M3.
32, paint mode M333, color balance mode
Any mode among M334 can be selected. Mosquito
In color mode M331, the specified area is
Color, full color Y, M, C, Bk, RED, GR
Any color mode among 9 types of EEN and BLUE
Can be selected. The color conversion mode M332 is a designated area.
In the gamut, a predetermined color part having a certain density range is
This mode replaces and copies colors. The paint mode M333 corresponds to the designated area.
Coated uniformly over the entire surface in any other color
This is the mode to make a beeper. Color balance mode M33
4 designates the designated area as Y, M, C, and Bk, respectively.
By adjusting the density of the
This mode is for printing with color balance (color tone). In this embodiment of the area designation mode M300,
The specific operation method will be sequentially described with reference to FIG.
First, press the area designation key 424 on the digitizer 16
And the liquid crystal display changes to the screen P300 and the digitizer 16
Is designated with the point pen 421. Territory
When two points in the area are pressed, the display changes to screen P310 and the finger
If the fixed area is good, touch key a on screen P310 is pressed.
Next, the specified area is displayed on the screen P320.
Select one of the following: crop, mask, and image separation.
Press the key. At this time, the designation is trimming or maskin
Press the touch key a key on the screen P320,
Proceed to the next area specification. Select image separation on screen P320
If so, proceed to screen P330, where color conversion, paint,
Select either color mode or color balance.
For example, the image in the designated area is divided into four colors of Y, M, C, and Bk.
To print in color, touch the screen P330
Press key a (color mode) to display 9 types of screen P360
Press touch key a from the color mode
The designation of printing in full color is completed. On screen P330, color conversion is designated.
When touch key b is pressed, the display advances to screen P340.
Has color information to be color-converted within the specified area
Specify points by points. If it is OK at the specified position
Press touch key a on screen P341 to advance to screen P370.
No. Screen P370 is a screen for specifying the color after conversion.
Specify one of the following four types: primary color, specified color, registered color, and white
You. Here, to select the converted color from the standard colors,
Press touch key a on screen P370 to display on screen P390
Yellow, magenta, cyan, black, red, green, blue 7
One of the colors is specified here. In other words, standard colors
Is the color information unique to this color copier,
In the case of the embodiment, the density of the print image is
As a degree, it is just printed as an intermediate density
Has become. However, the density of the specified color is slightly reduced
Of course, there is a demand to make it darker or darker,
Press the density designation key at the center of P390 to set the desired density.
Color conversion. Next, on screen P370, touch key c (designation)
When (Color) is selected, proceed to the screen P380, and select the color before conversion.
Specify a point with converted color information in the same
The screen is designated with an int pen, and the screen advances to the screen P381. even here,
As described above, only the density without changing the color of the specified coordinates
When you want to perform color conversion by changing
Press the center density adjustment k key a to perform color conversion with the desired density
Things become possible. Next, on the screen P370, the standard colors and the original colors are displayed.
If there is no desired color on the manuscript, a color registration mode M7 described later
Color conversion can be performed using the color information registered in Step 10.
You. In this case, press the touch key c on the screen P370,
Of the colors registered on screen P391, the color number you want to use
Press the touch key of. Again, the registered color density,
Adjust by changing only the density without changing the ratio of each color component
Can be. Also, specify touch key c (white) on screen P370
Then, the same effect as in the above-described masking mode M310 is obtained.
Becomes Next, the paint mode in the image separation mode M330
To specify the mode M333, touch the screen P330.
Press the key c and the screen advances to P370. Pay Later
After the printout, the color specification is performed on the screen P37 of the color conversion mode M332.
The operation is exactly the same as the setting method after 0. On the screen P330, only the specified area is
To print with the desired color balance (color tone), touch
Press touch key d (color balance). At this time, the display
The surface changes to P350, where the toner component of the printer
Adjust the density adjustment of certain yellow, magenta, cyan, and black
This is performed using the touch key of the pull-down. Here, the screen P3
On 50, a black bar graph indicates the state of density designation.
In addition, a scale is displayed beside it to make it easier to see. <Description of Color Create Mode> FIG. 41
In color create mode M400, the color mode
M410, color conversion mode M420, @int mode M4
30, Sharpness mode M440, Color balance mode
One or more fingers from the five modes of the M450
Is possible. Here, in the area designation mode M300,
Color mode M331, color conversion mode M332, paint
Mode M333 and color balance mode M334
Or, in color create mode M400,
The function operates on the entire document, not on the area.
Others perform exactly the same function. Therefore
The description of the above four modes is omitted. In the sharpness mode 440, the image
This mode adjusts the tone of the image.
Enhance the edge and apply a smoothing effect to halftone images.
This is a mode for adjusting the ratio to be applied. Next, color creator
The method of setting the light mode is explained according to the explanatory diagram of FIG.
I do. Digitizer 16 color create mode key
When 425 is pressed, the liquid crystal display changes to the display of screen P400.
Change. Touch key b (color mode) on screen P400
Press (D) to proceed to screen P410, where you want to copy
Select a color mode. If the color mode you want to select is
Color mode other than color and 4-color
If you do, the display goes to screen P411 and displays whether it is negative or positive.
Can be selected. Touch key c (shear key) on screen P400
Pressing (Punes) changes to the screen P430 and the copy image
The sharpness of the image can be adjusted. Picture
When the strong touch key i on the surface P430 is pressed,
Increases the amount of edge enhancement, especially for fine lines such as character images
Be copied. When the weak touch key h is pressed, the surrounding pixels
Is smoothed, and the amount of so-called smoothing is large.
The settings are made so that moiré and the like in the halftone original can be erased.
I can. The color conversion mode M420 and the paint mode
Do M430 and color balance M450 with the area finger.
The description is omitted here because it is the same as the fixed mode. <Explanation of Inset Combining Mode>
The original mode M6 is used for documents such as E and F in FIG.
Converts the specified color image area into a monochrome image area (color image area).
Image area).
Is a mode for moving and printing with magnification. The setting method of the inset synthesizing mode is determined by the liquid crystal panel.
This will be explained using the picture on the screen and touch panel key operation. First
Place the original on the coordinate detection plate of the digitizer 16 and fit it
Inset composite key, which is the entry key for only composite mode
When the user presses 427, the liquid crystal screen changes to the standard screen P0 in FIG.
From 00, the screen changes to a screen P600 in FIG. I want to move next
The diagonal of the color image area with the point pen 421
Specify two points on the line. At that time, the screen P6 on the LCD screen
As shown in Fig. 10, two points that are almost similar to the position actually specified
Is displayed. At this time, the specified area is changed to another area.
If you want to change it, press touch key a on screen P610 and
And two points. Touch key if you are happy with the set area
b, and then move the diagonal line of the destination monochrome image area.
Two points are designated with the point pen 421, and if it is good, the screen P6 is displayed.
Press the 30 touch key c. At this time, the LCD screen is screen P6
Change to 40, here specify the magnification of the moving color image
I do. If you want to fit the moving image at the same size, touch
Press touch key d and touch the end touch key to complete the setting.
I do. At this time, as shown in FIGS.
If it is larger than the destination area,
When it is small and small, the open area is white
It is automatically controlled to print as a page. Next, when the designated color image area is scaled,
Press the touch key e on the screen P640 to
You. At this time, the screen changes to the screen P650, and is displayed in the X direction (sub-scanning).
Direction) The magnification in the Y direction (main scanning direction) is
Make settings in the same way as in the zoom mode. First, finger
In the fixed moving color image area, XY
Press the touch key g on the screen P650
Reverse key display. Also, the moving color image area
To print at the same size as the destination area,
The touch keys h and i of P650 are pressed to reverse. or
X-direction only, Y-direction only, or XY equal rate manual
When setting the magnification, touch
Press key to set. When the above setting operation is completed, touch key
-J, the screen returns to the standard screen P000 in FIG.
The setting operation of the inset combination mode is completed. <Enlarged continuous shooting mode> Extended continuous shooting mode M50
0 for the original size or the specified area of the original
The selected paper size when copying at the set magnification.
Exceeds the limit, depending on the set magnification and the specified paper size.
The document is automatically divided into two or more areas, and
To output copies of each part of a scanned document on multiple sheets of paper.
Mode. So paste these multiple copies together
Makes it easy to copy larger than the specified paper size.
Can be made. The actual setting operation is performed first by the digitizer 16.
38 is pressed, the screen P500 of FIG.
The setting is completed by pressing the end key of the touch key a. After
It is only necessary to select a desired magnification and paper. <Registration Mode> The registration mode M700
Registration mode M710, zoom program mode M72
0, 3 types of manual feed size designation mode M730
It is composed of The color registration mode M710 is the same as the color registration mode described above.
Create mode M400 and area designation mode M300
The color after conversion when the color conversion mode and paint mode of
You can register in this mode. Zoom program mode
M720 is the length of the original and the length of the copy paper size.
Is automatically calculated by inputting
The magnification of the result is displayed on the standard screen P000.
This mode is copied at the rate. Manual feed size designation mode
In this color copier, the upper and lower cassettes
In addition to paper feeding, manual copying is possible.
When you want to use in S (Auto Paper Select) mode, etc.
Is a mode that allows you to specify the size of manual feed.
You. First, the * key 402 as the operation unit in FIG.
When is pressed, the display changes to a screen P700 in FIG. Next
If you want to perform color registration in color registration mode M710
Press the touch key a of P700, and on the screen P710,
Register the color or place the original on the
421. At this time, the screen changes to screen P711, and
If you want to set the eye registration number, press the touch key for that number.
You. To register other colors, touch the screen P711.
Press key d to return to screen P710, and set in the same procedure.
Set. Touch when you finish inputting the coordinates you want to register
Press key e and use the read start key on screen P712.
A certain touch key f is pressed. After the touch key f is pressed, the flowchart shown in FIG.
It operates according to the processing of the chart. First of all, S700
Lamp 10 is turned on, and in S701, the coordinates specified above.
(Sub scanning direction)
Calculate the number of documents and issue the specified
The scanning unit 11 is moved. In S702, the line
Data in the sub-scanning position
One line is taken into the RAM 78 'of FIG. S70
3 specifies the coordinates based on the data of one line.
The average value of 8 pixels before and after the main scanning position is stored in RAM 78 '.
The calculation is performed by the CPU 22 and stored in the RAM 24. S7
In 04, it is determined whether the specified number of registered coordinates have been read.
If there is, the process similar to the line is performed to S701. Reading
When all the locations have been completed, a halogen lamp is used in S705.
10 is turned off, and the original scanning unit is moved to the reference position H.0.
The operation is completed by returning to the P position. Next, in screen P700, touch key a
Pressing (Zoom program) changes to the screen P720,
Here, update the length of the original and copy size.
Set with the pull-down key. The set value is displayed on the screen.
Displayed on P720 and the copy size / original size
The% value is displayed. The result of the operation is
Displayed at the magnification display position on the standard screen P000, and when copying
Is set. Next, on screen P700, touch key c (manual
Pressing (Specify Size) advances to screen P730, where
Use to specify the paper size for manual feed paper. This mode is for example
APS mode and auto zoom scaling for manual paper
It is something that can be done. In each mode, the touch panel or the data
Numerical values and information set by the digitizer coordinate input are C
RAM 24, RAM 25 under the control of PU 22
Each is stored in the pre-arranged area, and the subsequent copy
-Called and controlled as a parameter during the sequence
It is. FIG. 51 shows a film projector (FIG. 24).
-211) shows the operation procedure of the operation unit in the case of mounting. H
After the film projector 211 is connected,
406, When the projector mode selection key is turned on,
The display on the liquid crystal touch panel changes to P800. This screen
In, whether the film is negative or positive is selected. example
If you select a negative film here, P810,
The screen changes to a screen for selecting the ASA sensitivity of the film. Here an example
For example, the film sensitivity ASA100 is selected. this house,
As detailed in the procedure described in FIG. 29, the negative base fill
And set the P820 shading start key
Is turned on to enable shading correction and then pre-
Set the negative film you want to print on the holder 215,
When the copy button (Fig. 31-400) is turned on, the exposure voltage
After performing the AE operation for determining
Image in the order of yellow, magenta, cyan, and Bk (black)
Repeat formation. FIG. 46 shows the sequence of the present color copying apparatus.
It is a flowchart of a control. The flow chart below
I will explain. By pressing the copy key, halo in S100
The gen lamp is turned on, and the operation described above is performed in S101.
In the black correction mode, S102 in the white correction mode in S102
Performs the logging process. Then in color conversion mode or paint mode
If the designated color conversion has been set, register the color in S104,
Performs the specified color reading process and performs color separation of the specified coordinates.
Prescribe density data in registration mode and specified color detection respectively
In the area. This operation is as shown in FIG.
is there. In step S105, a document recognition mode is set.
Is determined, and if it is set, the scanning
The knit 16 is scanned for the maximum document detection length of 435 mm.
The document is recognized via the CPU bus from the document recognition 200 described above.
Position and size are detected. Also, when not set
Indicates the paper size selected in S106-2 as the document size.
The information is stored in the RAM 24. S
At 107, it is determined whether or not the movement mode is set.
And if it is set,
The document scanning unit 16 is moved to the document side. Next, in S109, each mode is set.
RAMA136 or RAMB137 based on the information
Bit map for gate signal output of each function generated
Create a group. FIG. 49 shows the settings made in each mode described above.
RAM information set in the RAM 24 and RAM 25
FIG. AREA MODE is for each specified area.
Operation in a, for example, each mode of paint, trimming, etc.
Is stored. AREA XY is the original
AREA contains size information of each area and A
LPT is information after color conversion, whether standard color or designated color is a registered color
Information is stored. AREA ALPT XY is
AREA Information on the color coordinates when the content of the ALPT is the specified color
Information area, AREA DENS is the density control after conversion
It is an adjustment data area. AREA PT XY is a color change
Area for color coordinates before conversion in the conversion mode.
EA CLMD is the color mode information in the original or specified area.
Information is stored. Also REGI COLOR is a color registration mode
Each color information registered in is stored and used as a registered color
This area is stored in the backup memory of the RAM 25.
It is stored and stored even if the power is turned off. Based on the above set information, FIG.
Create a bitmap. First, the size of each area in FIG.
AREA storing information XY, in the sub-scanning direction
From the coordinate data, X ADD
Rear sorting and sorting in the main scanning direction
To Next, the start point and end point of each area in the main scanning direction are
BIT "1" is set at the MAP position, and the coordinates of the end point of the sub-scan
Repeat in the same way. Bit position to set "1" at this time
Is generated by RAMA136 or RAMB137.
It corresponds to each gate signal.
Determine the cut position. For example, an area 1 which is a manuscript area is T
Area of color balance designation corresponding to MAREA660
5 corresponds to GAREA 626. Hereinafter, similarly
The bitmap for the area is shown in BIT in FIG. MAP
Create in the rear. Next, S109 1 is the mode in each area.
Perform the following processing on the First, area 2 is cyan
Color mode, monochrome for 4 colors of original
It is an image of an image. At this time, the area 2 is used for cyan development.
, The area 2 contains only the cyan component.
Printed with the image, the image of other yellow and magenta components
The image is not printed. Therefore, a single color
ND image image when selected in mode
In the masking coefficient register of FIG.
64 is activated when the following register is selected:
Set the coefficient. [0105] [Outside 4] Next, MAREA 564 is selected with "0".
The masking coefficient register stores the RAM 23 in FIG.
Stored data (use in 4-color or 3-color mode)
Set). Next, the area 2 in the paint mode
Corresponding to the bits in the BIIMAP area described above
Gate signals CHAREA0, 1, 2,
The data is stored in each register of FIG.
Cut. First, to convert all input video
, FF to yu159, 00 to yl160, mu161
To FF, 00 to ml162, FF to Cu163, Cl1
Set 00 to 64 and after the conversion stored in FIG.
Color information of AREA_ALPT or REGI_COLO
R from AREA_DEN for each color data
Multiplied by the coefficient of the density adjustment data of S, and y'16
6, m'167, c'168
Cut. For the color conversion of the area 4, the aforementioned yu15
9,..., Cl164 are stored in the registers of FIG.
Data with a certain offset value added to the
Set each, then set the converted data in the same way
I do. In the color balance of the area 5, the gate signal GAR
EA 626 of RAM 177 selected by "1"
In the areas of Y, M, C, and Bk, the
From the balance value AREA_BLAN.
Data is set and GAREA 626 is selected with "0".
Is the color balance at the time of color creation
Set data from BLANCE. In S109, a start command for the printer is issued.
Is output via the SRCOM 516. FIG. 4 at S110
7 is shown in the timing chart. ITOP is detected and S
111, output video signals C0, C of Y, M, C, Bk
1, switching of C2, lighting of halogen lamp in S112
U. In S113, the end of each video scan is determined, and the
If it is, the halogen lamp is turned off in S114, and S114
In step S115, a copy completion check is performed.
If so, a stop command is output to the printer in S116.
Copying ends. FIG. 48 shows a signal output from the timer 28.
It is a flowchart of the interruption processing of HINT517.
In step S200-1, the stepping motor start
Check if the immersion is complete
The stepping motor is started, and in S200, the aforementioned FIG.
X One line of BIT indicated by ADD MAP data
Is set in the RAM 136 or the RAM 137. S20
At 1, the address of the data set at the next interrupt is incremented by +1.
I do. In S202, switching between the RAM 136 and the RAM 137
Signal C_Three 595, C_Four 596, C_Five 593 is output and S
At 203, the time until the next sub-scan switching is set in the timer 28.
X BIT indicated by ADD The contents of MAM
The gate signal is set in the RAM 136 or RAM 137 sequentially.
Switch the number. That is, when the carriage moves in the sub-scanning direction,
Every time an interrupt occurs, the processing content in the X direction is switched,
Color processing such as various color conversions can be executed for each area. As described above, according to the color copying apparatus of this embodiment,
Various color modes are possible, and free color reproduction
It becomes possible. In this example, electrophotography was used.
The color image forming apparatus has been described as an example, but is not limited to electrophotography.
Various records such as ink jet recording, thermal transfer recording, etc.
Recording methods can also be applied. Also read as a copying machine
Although the example in which the taking unit and the image forming unit are arranged close to each other has been described,
Of course, the image information is transmitted by the communication line at a distance.
Of course, the present invention can be applied. [0112] As described above, according to the present invention, the disk
Display the screen for setting the predetermined processing in the play and set the color processing.
In response to an instruction to change the screen to
The screen changes to the color processing setting screen, and the changed display
Set color processing according to the color processing settings on play
A display method in a color processing device,
When the play is on the screen for setting the predetermined processing, the predetermined processing is performed.
For displaying the explanation screen on the screen for
Screen for setting the predetermined process in response to an instruction to the
Is displayed on the display, and the display is
When the screen for color processing setting is displayed, the screen for color processing setting
Finger to the character to display the above explanation screen
The description screen for the color processing setting is displayed on the display as
Displayed during play, depending on the state of the display
It is possible to display an appropriate explanation screen, and
User does not know what kind of settings are currently displayed.
You can refer to the optimal explanation screen without considering
It works. In addition, even when the screen for the predetermined process setting is
Display the same explanation screen on the screen even when it is the regular screen
For predetermined processing and color processing by instructions to the character for
The description screen of each is displayed.
Hard to make mistakes when getting

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing a digital color copying machine according to an embodiment. FIG. 2 is a control block diagram of a reader controller. FIG. 3 is a diagram showing a protocol of a CPU 22 of the motor driver 15 of FIG. 2; FIG. 4 is a timing chart of a control signal between a reader unit and a printer unit, a video signal transmission circuit diagram, and a timing diagram of each signal on a signal line SRCOM. FIG. 5 is a detailed view of the video processing unit of FIG. 2; FIG. 6 is a layout diagram of a color CCD sensor and a timing diagram of each part of the sensor. FIG. 7 is a diagram showing a CCD drive signal generation circuit (a diagram showing an internal circuit of a system control pulse generator 57) and a signal timing diagram of each unit. FIG. 8 is a detailed diagram of the analog color signal processing circuit 44 of FIG. 5; FIG. 9 is a diagram illustrating a configuration of a staggered sensor. FIG. 10 is a diagram showing a black level correction circuit. FIG. 11 is a diagram showing a white level correction circuit. FIG. 12 is an explanatory diagram of a line data capturing mode. FIG. 13 is a logarithmic conversion circuit and a logarithmic conversion characteristic diagram. FIG. 14 is a spectral characteristic diagram of a reading sensor. FIG. 15 is a spectral characteristic diagram of a developing color toner. FIG. 16 is a masking black ink UCR circuit diagram. FIG. 17 is an explanatory diagram of generation of a region signal. FIG. 18 is a block diagram of a color conversion unit. FIG. 19 is a block diagram of a gamma conversion circuit using an LUT. FIG. 20 is a block diagram of a scaling process. FIG. 21 is a block diagram of edge tension and smoothing processing. FIG. 22 is a control circuit of an operation panel unit. FIG. 23 is a configuration diagram of a film projector. FIG. 24 is a diagram showing a relationship between a control input of a film exposure lamp and a lighting voltage. FIG. 25 is a flowchart when a film projector is used. FIG. 26 is a diagram illustrating a PWM circuit and control blocks. FIG. 27 is a gradation correction characteristic diagram. FIG. 28 is a diagram illustrating a relationship between a triangular wave and a laser lighting time. FIG. 29 is a control flowchart when a film projector is used. FIG. 30 is a perspective view of a laser printing unit. FIG. 31 is a top view of the operation unit. FIG. 32 is a top view of the digitizer. FIG. 33 is an explanatory diagram of a liquid crystal standard table screen. FIG. 34 is an explanatory diagram of an operation in a zoom mode. FIG. 35 is an explanatory diagram of a movement mode and a corner movement operation. FIG. 36 is an operation explanatory view of the area designation mode. FIG. 37 is an explanatory diagram of an operation in a color create mode. FIG. 38 is an explanatory diagram of an operation in an enlarged continuous shooting mode. FIG. 39 is an explanatory diagram of the operation in the fitting synthesis mode. FIG. 40 is an explanatory diagram of an operation in a registration mode. FIG. 41 is a functional diagram of the color copying apparatus of the present embodiment. FIG. 42 is an explanatory diagram of an inset combination mode. FIG. 43 is a diagram showing a print image when a corner is moved. FIG. 44 is a control flowchart in the color registration mode. FIG. 45 is a diagram showing color components of a standard color. FIG. 46 is a control flowchart of the entire system. FIG. 47 is a time chart of the entire system. FIG. 48 is an interrupt control flowchart. FIG. 49 is a view showing a memory map of a RAM; FIG. 50 is an explanatory diagram of a bitmap. FIG. 51 is an explanatory diagram of the operation of the projector. FIG. 52 is a signal timing chart of each unit in FIG. 8; FIG. 53 is a view showing offset adjustment and gain adjustment. FIG. 54 is a diagram showing a memory configuration for misalignment correction of the staggered sensor. FIG. 55 is a timing chart for controlling displacement correction of the staggered sensor. FIG. 56 is a view showing variation when a black level is detected by a sensor. FIG. 57 is a view showing variations when a white level is detected by a sensor. FIG. 58 is a flowchart of white level correction for each CCD. FIG. 59 is a diagram showing a truth table indicating a relationship between selection signals C ₀ , C ₁ , and C ₂ and color signals. FIG. 60 is a block diagram for specifying an area. FIG. 61 is a diagram showing an area designation and a control signal. FIG. 62 is a diagram showing correspondence between each bit and a signal name; FIG. 63 is a view showing an example of a truth table of a selector 175 and an image to be color-converted. FIG. 64 is a diagram illustrating a region before performing color conversion and a diagram illustrating color conversion in the region. FIG. 65 is a schematic diagram when density correction is performed separately for each region. FIG. 66 is a diagram illustrating gamma for color balance and shading control. FIG. 67 is a diagram showing the flow and timing of signals when performing scaling processing. FIG. 68 is a view showing scaling and movement processing. FIG. 69 is a view showing sharpness and edge tension. FIG. 70 is a view showing extraction of a region. FIG. 71 is a histogram of an R signal for determining the timing of exposure and image formation by a film projector and the amount of lamp light. FIG. 72 is a diagram showing pulses of a PWM circuit. FIG. 73 is a control flowchart when using a film projector.

Continuation of the front page (56) References JP-A-61-190351 (JP, A) JP-A-61-6707 (JP, A) JP-A-59-111690 (JP, A) , U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04N 1/387 H04N 1/46 G03G 15/01 G03G 21/00 G09G 5/00

Claims (1)

(57) [Claims] A screen for predetermined processing setting is displayed on the display, and in response to a change instruction to a screen for setting color processing, the display is changed to a screen for color processing setting, and the setting of the color processing on the changed display is set. A display method in a color processing device that sets color processing according to the following, when the display is a screen for the predetermined processing setting,
In response to an instruction to a character for displaying an explanation screen on the screen for the predetermined processing setting, the explanation screen for the predetermined processing setting is displayed on the display, and the display is a screen for the color processing setting. Sometimes, in response to an instruction to a character for displaying the explanation screen on the screen for setting color processing, the explanation screen for setting color processing is displayed on the display. Display method.