JP3530211B2 - Image forming device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an original document loaded on a document loading table.
Optically scans the image information of the original document
Original image information converted from optical signals to electrical signals
Image forming apparatus having a function of adding new image data
It is about. FIG. 18 shows the function of a conventional additional image generating apparatus.
FIG. 19 is a block diagram of a conventional additional image generation unit.
FIG. The image data to be added is stored in the first storage unit 22.
It is stored as print data. User interface
The output of the additional image is instructed by the chair (UI) 40 or the like.
Then, the CPU 21 causes the first storage unit 22 to
Read the added image data, edit and process the data,
25 is developed as bitmap data. Also address
Controller 24 has a UI / editor pad, etc.
The additional image output position specified by the
Is input as the XY coordinate value of. After the above work is completed,
Upon receiving the lint start signal, the address control unit 24
Start counting clocks. Video scanning on the main scanning side
The sub-scan side counts the line sync signal and counts
When the default value matches the image output position, the second storage
The count of the address counter supplied to the means 25 starts.
It becomes. The lower counter is the video clock, the upper is the line
Counted up by the synchronization signal, the second storage means 25
Output an additional image. Upper / lower address output
Is determined by the size of the specified additional image area
Is done. The output image data is converted into parallel / serial data.
After processing such as conversion, the data is read in synchronization with the video clock.
This is combined with the captured image data. The composite image is the image recording unit
30 is sent to the image recording member as one system video output.
Recorded above. An image forming apparatus having a plurality of developing units
The image forming process multiple times for each developing unit
Transfer the electrostatic latent image formed on the material to the paper multiple times
Thus, additional images of a plurality of colors are recorded on paper. [0003] Conventionally, the output of an additional image has been described.
To specify the force position, use the fixed position
40 or JP-A-63-246974.
Seat on paper with an editor pad etc. as disclosed in
Specify a mark or implement JP-A-2-213274
Specify the coordinates directly on the UI 40 as shown in the example, or
As shown in Japanese Patent Application Laid-Open No. 2-161777,
Or specify it by using the following method.
The position specified by these methods is
It does not change until the position is specified again. On the other hand, an image forming apparatus equipped with an automatic duplex copying apparatus
Page numbers on the back / front of the paper
Consider the case of adding. In this case, the page number is
It is common to specify the output position in the margin direction.
However, the binding direction is reversed on the back / front of the paper.
The page number position after duplex copying is on the back / front of the paper.
And there is a problem that they do not match in the binding direction
Was. Also, depending on the printing direction of the additional image on the paper,
Indicates the print direction of the original and the print direction of the additional image on the back / front of the paper
There was also a problem that was reversed. The problem to be solved by the present invention is that
Always prints a natural additional image on paper regardless of the front / back side
Character recording. Means for Solving the Problems [0006] To solve the above problems,
Therefore, according to the present invention, image information of an original is converted from an optical signal to an electric signal.
Characters, symbols, etc. to be added to the original image photoelectrically converted to
Storage means for storing the image of
Second memory means for storing image data developed by editing
And an image data stored in the second storage means.
Image forming apparatus that synthesizes data and outputs it on recording paper
Whether the image data to be added is
Identification means for identifying whether to be printed on
Linked to the back / front of the paper on which the original is recorded according to the information from
The output order of the additional image data from the second storage means.
Introduction, or added from the first storage means to the second storage means
Either of the expansion order when expanding the image data
To Change It is characterized by having means for causing it to. According to the present invention, when the automatic double-sided copying machine is used,
Information indicating whether printing is being performed on the front or back of the paper
Output the information and the specified print output position / mark
Print output on the front / back side of paper by combination of character output direction
By changing the position or the output order of additional images
And always add a natural added image regardless of the front / back side of the paper.
Print and record on paper. FIG. 1 shows the overall configuration of the present invention. The present invention
Optically scans the original loaded on the original
Photoelectric conversion elements such as CCD (charge coupled device) for image information
The signal is converted into an analog electric signal by the
Image information converted into a digital signal by the conversion element 12
Image reading that performs processing 13 such as image quality correction / image editing
The user specifies the operation mode of the entire apparatus.
User interface section (hereinafter abbreviated as UI)
40, font data such as characters and symbols are stored
The designated image data is read from the first storage means and the
2 Expanded on the storage means and synchronized with the clock of the image reading unit
Output from the second storage means,
An additional image generation unit 20 for synthesizing with image data from 0,
After drawing the pattern of the specified color on the photoconductor, use the specified color toner.
After developing, and drawing the background of the black image, the black toner
Developing in two colors in one image recording process.
Image and print and record the composite image data on paper
Image recording unit 30 automatically conveys document onto platen
It is divided into a document feeder unit 50. The following is an embodiment of the present invention for each block.
This will be described in detail based on the order. A. Image reading unit 10 The configuration of the image reading unit 10 is described in, for example,
Image processing apparatus described in Japanese Unexamined Patent Publication No. Hei 3-10568.
Are explained in detail here.
do not do. The image reading unit 10 reads the original image by optical means.
CCD 11 which forms an image and scans the line,
An A / D converter 12 for A / D converting the output of D11;
Image processing for processing and editing A / D converted image signals
/ Based on image editing unit 13 and A / D converted image signal
And the size of the manuscript was specified by the editing marker on the manuscript
Document detection / area detection unit that detects an area, and image processing unit
Indicate the operation of / image editing unit 13 and document detection / area detection
And a CPU 14. B. Additional image generation unit 20 The additional image generation unit 20 generates an additional image as shown in FIG.
A CPU 21 for controlling the entire unit 20;
The first storage means 22 in which point data is stored,
Edit the characters, symbols, etc. of the image and store the expanded image data
Second storage means 25A, 25B, second storage means 25A,
Image reading for 25B according to the size of the image area
An address that generates an address in synchronization with the clock of the section 10
Dress control units 24A, 24B, second storage means 2
The image data output from 5A and 25B is parallel / serial.
Real conversion and according to the contents of the mode setting register 23
Additional image to add color data and 8-bit density data
The image generators 26A and 26B monitor the additional image and the read image.
Image to be output preferentially according to the contents of the
Image synthesis unit 27, sets print position and print mode of additional image
And a mode setting register section 23 for performing the operation. In the present invention,
Dress control units 24A and 24B, additional image generation unit
26A, 26B and two second storage means 25A, 25B.
And two independent images on paper
Can be added. Since then each function
A section and function B section are abbreviated. The CPU 21 communicates with the system CPU 14 periodically.
Information necessary to generate additional images
Received from the system side. The communication contents are shown in FIG.
As instructed to develop additional images and status on the system side.
Control and paper information indicating information and the type of paper selected
Main / sub-scan print merge for fine adjustment of output position of additional information and additional image
Information, page number information used when adding page numbers, and
Last page number information, copy number used when adding copy number
Information, gap length information between the first and second exposure lasers
Function A section, Function B section common information), type and direction of additional image
Additional image mode information indicating the print position, color,
Additional image parameter information indicating density, size, etc.
Function A section, function B section independent information) and the like. Additional image
The image generation unit CPU 21 is information of the additional image generation unit 20.
After confirming the control word indicating that
And checksum to disable communication failure
After checking that there is no
You. If there is no instruction to expand the additional image, wait until the next reception
The machine is ready. If there is an instruction to expand the additional image, add
The image generation unit CPU 21 receives an instruction from the first storage unit 22.
Image data according to the type and direction of the additional image
It is developed on the means 25A, 25B. Output position and marker
The output start position of the additional image from the
Output end position based on the result and the type and size information of the additional image
Are calculated as XY coordinate values on the paper, and added
The color, density, and size of the additional image are determined from the image parameter information.
Is determined and written to the mode setting register of the additional image generation unit 20.
Get in. The above processing is performed for each of the functions A and B. J above
After the end of OB, a trigger signal is received from the system side CPU.
Thus, the output job of the actual additional image starts. FIG.
3 shows a flowchart up to the output of the additional image. FIG. 3 is a block diagram of the address control unit 24.
The block diagram is shown. The main scanning counter 241 provides video for each line.
Counts the clock or its divided clock
The main scan counter 241 count value and mode setting.
Additional image output in the main scanning direction set in the setting register 23
When the start position value matches, the main scan count enable
The bull signal becomes “H”. Counting progresses further and the cow
Main scan with the print value set in the mode setting register 23
Where the value of the additional image output end position
It becomes “L”. The count in the sub scanning direction is the clock source
Only after changing from video clock to line sync signal
Is the same as in the case of main scanning. The count in the sub-scanning direction
Since the clock frequency is lower than that of main scanning,
Counting by CPU without using hardware such as
May be possible, in which case hardware savings
it can. Also in this embodiment, the sub-scanning print enable signal SSC
ENH is generated by the CPU. Main scan / sub scan printing
Additional image is developed when enable signal becomes “H”
Address counter output to the second storage means 25
Data counting starts. This address counter is higher
And the lower address counter 242
The lower address counter 243 transmits the line synchronization signal to the video
It is counted with a clock obtained by dividing the clock. K
The lock division ratio depends on the size of the additional image and the data on the storage unit.
Is determined by the data configuration (described later).
20-bit additional image with 8-bit data length
If output at 0 spi resolution, size 100%
The division ratio at the time is VCLK ÷ (8 bits ÷ (400 spi
(Original reading resolution) @ 200 spi))
You. Assuming that the dividing ratio is n, the size is 200% and 5
The division ratios at 0% are 2n and n / 2, respectively. Day
If the data configuration has color information, the print data
The frequency division ratio is 50% / 100
% / 200% are n / 4, n / 2, and n, respectively.
The upper bit and upper address of the lower address counter 243 output
The lower bit of the output of the dress counter 242 is the middle address
Output assignment of upper and lower counters by selector 244
(How many lower-order bits of the address given to the second storage means
Is the output of the lower counter?). This is
The print area of the additional image in the main scan / sub-scan direction is
It depends on the type and direction. Selector output
The allocation is determined by the CPU according to the type and direction of the additional image
Then, it is set in the mode setting register 23. Above
The generated address is added to the additional image via the selector 245.
Is output to the expanded second storage means 25. Sele
The input bus of the CPU 245 is connected to the address bus of the CPU.
And the CPU stores the second storage from the first storage
When the image data is expanded on the means 25, the selector 24
5 and the CPU address bus goes out to the second storage means 25.
Is forced. The second storage means 25 receiving the above address
Output the image data corresponding to the address,
The image is captured by the image generator 26. Next, the additional image data will be described. Book
The additional image data according to the invention has two data structures.
It is stored on the first storage means 22. 1. Configuration of Print Data Only In the data configuration of FIG. 7A, one bit in one byte is
It corresponds to one pixel of the additional image. "1" prints the pixel
Means data. 2. Data configuration having color information In the data configuration of FIG. 7B, the lower 4 bits in one byte
Is the print data and the upper 4 bits are the color data.
You. Correspondence is D0-CF0, D1-CF1, D2-CF
2, D3-CF3. Dn is "1", corresponding to it
If the color data is “0”, the pixel has black data,
"1" means color data. In this embodiment, the color
Supports print data as a data structure with information
The color information data was used, but as shown in FIG.
And color print data. In this case,
In each case, "1" means printing of each color. In this embodiment, the data length is 8 bits.
However, a data length of 16 bits or more is acceptable.
No. In that case, the data length of the P / S register and the P / S conversion
The interval is a value according to the data length. FIG. 4 is a block diagram of the additional image generator 26.
Show. Image data captured by the additional image generator 26
Is P / S (parallel in / serial out = Para)
llel In / Serial Out) Registers 261, 262, 263
Is converted from parallel data to serial data.
You. The P / S register has 8 bits P / S 261 and 4 bits
P / S (higher image data) 262, 4-bit P / S
(Lower image data) 263, and
The second address is synchronized with the count clock and the second
Captures the output from storage means 25 and converts it to serial data.
Has been replaced. Serial data consists of data structure of additional image and
From the color information set in the mode register, select
Data of the additional image and the color information
Is converted to data indicating the information. Output of selector 264
Is the density data of the additional image, and the output of the selector 265 is
Set the flag indicating that the added image is black data to the selector
The output at 266 indicates that the additional image is color data.
The lags are shown respectively. Hereinafter, description will be made for each case. 1) The data structure of the second storage means 25 is color
In the case of a configuration having information, the outputs of the 4-bit P / S registers 262 and 263 are valid.
Become. The upper (print) 262 of the 4-bit P / S is a selector
Selector 264, 265, 2 after being selected by 267
66, the lower (color information) 263 of the 4-bit P / S is
265 and 266. The selector 264 is
Output of the collector 267 is "1" (print data is present).
The value set in the density setting register 268 (this embodiment
Output 8 bits), and output “0” when it is “0”
I do. The output of the selectors 265 and 266 is the mode register
269 is determined by the color mode. Mosquito
When the color mode is two colors, the lower output of 4-bit P / S is
The selector 266 is enabled and the lower part of the 4-bit P / S is
And the selector 265 outputs the
Is "1" and the lower output of 4-bit P / S is "0".
At this time, "1" is output. In other words, the output from the second storage means
The print data is “1” by force and the corresponding color data is “0”.
Color flag “0” with black flag “1” and color data “1”
If so, the black flag is "0" and the color flag is "1". Caramo
If the mode is all black or all colors, it is the output of selector 267
Injury is effective. When all black, the output of the selector 266 is always
It becomes “0” and the output of the selector 265 is
Is output as is. In other words, the print data
Only when it is "1", the black flag becomes "1" and the color flag is always
It becomes “0”. Conversely, for all colors, the output of selector 265
Is always “0”, and the output of the selector 266 is
267 is output as it is. That is, print data
Is only "1", the color flag is "1" and the black flag is always
Becomes "0". 2) The data structure of the second storage means is a print data
In the case of a data-only configuration, the output of the 8-bit P / S register 261 is valid. 8
The output of the bit P / S register 261 is sent to the selector 267.
After being selected, it enters selectors 264, 265 and 266.
Is forced. The outputs of the selectors 264, 265, 266
This is similar to the case of the configuration having color information. However,
Since there is no color information in this data structure, the color mode is 2
This is not possible with color. As described above, the additional image generation unit 26
Density data and additional image converted to 2-bit color flag
The image data is sent to an image synthesizing unit with the original image. FIGS. 5 and 6 are block diagrams of the image synthesizing unit.
Output selection is controlled by three controls, SEL0, SEL1, and SELF
It is done by a signal. The control signals are as shown in FIG.
, Additional image output enable signal ANTEN, background selection
Selection signal ANBGPR, LSB data ANTD of additional image
0, Function A additional image output area signal ANTERHA,
No. B additional image output area signal ANTERHB, whole area added
Generated from the image output signal AEAMH. A in the signal
NTENH, ANBGPR, and AEAMH are the mode setting
Set by the register, ANTERHA, ANTERH
B and ANTD0 are sent from the additional image generator. Also A
NTERHA / ANTERHB have functions A and B respectively.
This signal indicates the additional image area, and is "1" in the area.
You. Output of the additional image is basically enabled
Signal and the additional image output area signal are both "1".
The gate of the control signal opens and the output of the additional image is enabled.
It becomes a bull state. Otherwise, the control signal output is always
It is "0", and the document image is selectively output. Less than
The additional image combined with the original image from above is stored in the image recording unit 3
Sent to 0. C. Image recording unit The configuration of the image recording unit 30 is described in, for example,
In the image processing apparatus described in Japanese Patent No.
It is described, but will not be described in detail here. Image
The recording unit 30 includes density information and color identification information.
Input image signal output from load image generator for each pixel
And based on the operation of the user interface unit 40
Instructions from the CPU 14, namely binary recording, step recording, two-color recording
The first color printing, the second color printing unit,
Each of the two raster scanners as a light-sensitive material
A latent image is formed on the photoconductor of
After developing it with a developing unit, it is transferred to paper and recorded.
Things. D. Method of Specifying Additional Image Output on UI A configuration example of the UI unit will be described with reference to FIG. Main figure
Is the UI unit (console panel) of this device during standby
Is shown. Keys for performing basic copy operations
Except for the image reading unit, additional image generation unit, and image recording unit
For setting various modes and parameters, see LC in the center of the figure.
This is performed on the D touch panel screen. Hereinafter, the present invention
A method of specifying the output of the additional image will be described. Additional image
If you want to output an image, display the additional image screen on the LCD screen.
select. The screen of the additional image is shown in FIGS. This
The mode of the additional image realized by the present invention is displayed on the screen of
It is shown. A brief description of additional image modes
You. 1) Page mode The page number is read in accordance with the document conveying device or the like.
The mode to add to the image. 2) Stamp mode “Secret”, “Reference” stored in the first storage means.
Select the image you want to add from among the symbols such as
Select this mode to add to the original scanned image. The above
No. is standard equipment. 3) Copy management mode When copying a plurality of originals, the copy number is read for each collation.
The mode to be added to the trimmed image. 4) Registered logo mode This is not a standard symbol used in the stamp mode.
To scan newly created images for individual users.
Mode to add to the image. The user selects a mode from the screen.
If page mode is selected here, the screen
Screen. Here, select the page type, print
Color selection, print position / print direction selection (described later), final page
Parameter setting such as input of a page number is performed. Final pair
To change the page number, select “Change Number”.
And enter a new last page number. No change in settings
Select “Exit” for each screen if
Select “Cancel” and set the parameters again. After the above operations are completed, the display returns to the first screen and
If the mode is not the automatic mode
Enter the copy magnification, paper size, copy density, etc.
The specified additional image will be
Is printed at the designated position on the paper. E. Additional image output position designation method The additional image output position in this embodiment is based on the following two pieces of information.
Is determined. 1) Predetermined fixed position on paper
information. 2) Main scanning / sub scanning for fine adjustment of output position
Margin information. FIG. 12 shows an example in the "page mode".
When "Position" is selected on the page mode selection screen,
Displays the “position” screen, from which the user can select the output position.
Select In the case of this embodiment, nine positions on the paper
The position numbers on the screen are
Indicates the position. 1. Start end / outside 2. Start edge / center 3. 3. Start end / inside (register position on platen) Center / outside 5. Center / center 6. Center /
Inside 7. 7. End / outside End edge / center 9. End
/ Inside The above designation determines the approximate output position. This embodiment
Then, in addition to this fixed output position, the margin of main scanning / sub-scanning
Added fine adjustment of output position by adding information
did. FIG. 13 to FIG. 15 show how to make fine adjustments on the UI.
Indicates the order. When making fine adjustments, the user can use the UI to
Select “Adjustment” on the screen.
The adjustment items of the added image include mode / density / size / fine adjustment.
Therefore, "fine adjustment" is selected. Main scan (up and down) on this screen
/ Sub scanning (left / right) is selected, and margin (mm) is
Input with. After completing the above, the UI displays the output position information.
Information and margin information are transmitted to the SYSTEM side. This
When the SYSTEM receives the information of
Is transmitted to the image generation unit side. The image generator
Receiving this information, the specific output position is calculated and calculated.
You. For example, now the user selects the output position in FIG.
As shown in FIG.
Input 10mm, and the paper is A4LEF
When (297 × 210) is selected, the output start position is the output start position on the main scanning side = (297 mm−10 mm−main)
(Scanning print area width) The output start position on the sub-scanning side is determined by the sub-scanning margin of 10 mm. If the output position is, the output start position on the main scanning side = 10 mm of the main scanning margin Output start position on the sub scanning side = (210 mm−10 mm−sub
(Scanning print area width). F. Additional image output direction designation The additional image output direction for paper in this embodiment is shown in FIG.
As shown, horizontal (upward) to the paper transport direction
And the vertical (horizontal) direction.
Is selected on the UI. FIG. 12 shows a finger on the UI screen.
An example is shown below. On the “Position” screen, set the output position and
The user can select according to the orientation of the original
Select the direction of the character. The additional image generator receives the output direction.
Then, the developing order of the additional image data to the RAM is changed.
Figure 22 shows the difference between the development on RAM in the upside / sideways direction.
Show. In the figure, the size of one font is 16
X 32 dots, 8 bit data length data mark
Character data only. G. Additional image output position during double-sided copying
It is possible to copy a manuscript on both sides of the paper, but add it to both sides of the paper
Think about the additional image output position when outputting images
If you try to select the output position, for example, the output direction is upward
The additional image output position on the front and back of the paper when
Become. There is no problem with the paper table, but the output position on the back of the paper is
In that case, it will be on the binding side. Output position
It is the same as above. In other words, the additional image output direction is
When copying one side or two sides, the binding side is reversed between the front and back of the paper.
Output from the center of the sub-scanning side
It is necessary to reverse the force position. In this embodiment, the system
Information on which side of the paper is copied from the front or back side
And the output position is
,, ← →, ← →, ← →
The above problem was solved by changing the force position. Figure
26 shows a control flowchart. H. Original image placed on platen by double-sided original feeder
The relationship between the document orientation and the document scanning direction is as shown in FIG.
Then, the original is different between a landscape orientation and an upward orientation. Original is horizontal
When scanning, the original scanning direction is
In the opposite direction, the output position is in the sub-scanning side as described in G.
Since the output position is reversed with the center as the axis,
The output positions match on the back side. However, on the additional image paper
The development order is performed along the original scanning direction.
On the back side, the printing direction of the original and the developing direction of the additional image are opposite
Become. As described above, the additional image output direction is horizontal
In the case of two-sided / two-sided copy, the output order of the additional image
It is necessary to reverse the output order of the sheet table. This embodiment
Now, copy either the front or back side of the paper from the system side.
The additional image output in landscape orientation
At the time, the additional image is transferred from the first storage unit to the second storage unit.
LSB and MSB of address and data when developing
Output order of additional images by reversing table copy
Is inverted. LSB and MSB of address and data
Inversion can be done by software or by hardware.
A. The former is time to develop additional images
If there is enough space, the latter emphasizes the speed of additional image development
Used when done. FIG. 27 shows the case of software.
3 and 4 are flow charts for hardware.
The block diagram is shown. In case of hardware, additional image inversion signal is ON
The number of CPU address buses accessing the RAM decreases.
This is the output of the arithmetic unit 1 (FIG. 3). Input of subtracter 1 is CPU
The address bus and the buffer of the additional image to be developed in the second storage means.
This is a register output indicating the number of bytes, and is the end of the second storage means.
When the address is accessed, the output of the subtracter 1 is "0",
Outputs the last address of the additional image when accessing address "0"
It becomes. The output from the second storage means is a BUS inversion
This is the output of road 1 (FIG. 4). In the BUS inversion circuit,
The data structure of the additional image is determined by the transfer signal and the color mode selection signal.
When the concentration is only concentration, the LSB and MSB of the data are
When the data configuration is two colors, the upper and lower 4-bit data bus
Invert. As described above, the additional image is inverted in the second storage means.
The image is expanded. These circuits are software
When the image is inverted, it becomes unnecessary. I. Movement of output position by number of digits of page number Conventional storage method of additional image "Page 999"
To expand to columns, left-justify the paper as the number of page digits increases or decreases.
In this case, the output position is
There is no problem except for, but paper at the position of ,,
Because it packs in the opposite direction with respect to the edge, depending on the page digit,
It will be a proper output position. Also, right justify the page number
In the case of, the same problem occurs at the position of
Occurs. In this embodiment, the page number depends on the output position.
By changing the filling direction of the
Page numbers are aligned with the edge of the paper. page number
Is the address where the page number is expanded in the second storage means.
Has been changed. 328 shows the control flowchart
Show. As described above, according to the present invention, the automatic
When using a two-sided copying machine, mark either the front or back of the current paper
The system outputs information indicating whether the character is
Depending on the specified print output position / print output direction combination
The print output position on the front / back side of the paper
By changing the force sequence, the heel
Regardless, always print a natural additional image on paper
Can be.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the whole of the present invention. FIG. 2 is a block diagram illustrating an additional image generation unit. FIG. 3 is a block diagram illustrating an address control unit of the additional image device. FIG. 4 is a block diagram illustrating an additional image generation unit of the additional image device. FIG. 5 is a block diagram illustrating an image combining unit of the additional image device. FIG. 6 is a block diagram illustrating an image combining unit of the additional image device. FIG. 7 is a diagram illustrating a data configuration example of additional image data. FIG. 8 is a diagram showing a format of data received from the system. FIG. 9 is a diagram showing an appearance of a console panel. FIG. 10 is a diagram illustrating a method of specifying additional image output on a UI. FIG. 11 is a diagram illustrating a method of specifying an additional image output on a UI. FIG. 12 is a diagram illustrating a method of selecting an output position on a UI. FIG. 13 is a diagram showing a parameter changing method. FIG. 14 is a diagram showing a parameter changing method. FIG. 15 is a diagram showing a parameter changing method. FIG. 16 is a diagram illustrating a printing position on a sheet. FIG. 17 is a diagram illustrating an output position on a sheet. FIG. 18 is a block diagram illustrating a configuration of a conventional image forming. FIG. 19 is a block diagram showing a conventional additional image generation unit. FIG. 20 is a flowchart showing the flow of additional image output according to the present invention. FIG. 21 is an explanatory diagram in the case where an image called Page 999 is added. FIG. 22 is a diagram showing addresses on a RAM in an upward / horizontal direction. FIG. 23 is a diagram illustrating an additional image output position when a double-sided document feeder is used. FIG. 24 is an explanatory diagram of a document scanning direction and an additional image output direction due to a difference in document orientation when using the duplex document feeder. FIG. 25 is a diagram showing a page development address on a second storage means. FIG. 26 is a flowchart illustrating a method for setting an additional image output position during double-sided / double-sided copying. FIG. 27 is a flowchart illustrating a method of developing an additional image in a RAM during double-sided / double-sided copying. FIG. 28 is a flowchart showing an output position and a page number filling direction according to an output direction in a page mode. [Description of Signs] 10 image reading unit, 20 additional image generation unit, 30
Image recording unit, 40 user interface (UI),
50 Document feeder section

Claims (1)

(57) [Claim 1] First storage means for storing an image such as characters and symbols to be added to a document image in which image information of the document is photoelectrically converted from an optical signal to an electric signal, An image forming apparatus comprising: a second storage unit configured to store image data obtained by editing and expanding the characters, symbols, and the like; And identification means for identifying whether the image data to be added is to be printed on the back or front of the paper. The information from the identification means is linked to the back / front of the paper on which the original is recorded, A means for changing either the output order of the additional image data from the second storage means or the development order when the additional image data is developed from the first storage means to the second storage means. Image forming apparatus .