JPH0387796A - Display device for image processor - Google Patents

Abstract

PURPOSE:To realize that character data is present on the following page by displaying the upper half of a character on the lower-most character column among character columns displayed on a display part. CONSTITUTION:An operating part 2-5 controls the keying and management of a console panel and the display and others of a liquid display. The display device includes a means generating a character string related to setting an image processing mode and a means displaying generated character strings by plural lines. When the number of generated character strings is greater than the number of lines displayed concurrently, the upper part of the character string displayed on the lowest line of the display means is displayed. Thus, even if the mark indicating a character is present on the following page is not displayed, the presence of the character is sufficiently recognized.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is capable of displaying continuous text, etc. on multiple lines or multiple pages on a liquid crystal display (LCD) or the like capable of displaying multiple lines while scrolling and switching pages. The present invention relates to a display device for displaying images.

[Conventional technology]

Conventionally, when displaying more text than the displayable number of lines on a display device or over multiple pages, the cursor keys are used to scroll and display one line at a time as shown in Figure 6 (Row 1 in Figure 6), or The display is performed page by page using the page change key (as shown in Figure 6 a-1-0. In this way, if there are sentences or characters to be displayed on the next or previous page, the display screen Some kind of mark (↓ or ↑ in this case) is displayed on the page to make it clear to the user that there is data on the next or previous page.Equipments equipped with such display devices have been developed. There is.

rProblems to be Solved by the Invention] However, in the above conventional example, since only modes 1 to 3 to be selected are displayed in the case of FIG. Although it is announced that there are some parts that are not displayed, it is difficult to understand the existence of the 4 to 6 selectable modes that follow, so there is a drawback that it is difficult to operate the device as desired.

[Means to solve the problem]

In order to solve the above problems, there is provided a means for generating a character string related to the setting of an image processing mode, a means for displaying the character string generated by the above generating means in units of multiple lines, and a line of the character string generated by the above generating means. control means for displaying the lower part or the upper part of the character string displayed on the top line or the bottom line of the display means when the number of lines is greater than the number of lines that can be simultaneously displayed on the display means; It is something.

[Effect]

By displaying the upper or lower half of the line to be displayed on the display section, it is possible to fully understand the existence of characters, etc. on the next or previous page without displaying a mark indicating that they exist. It has been made possible.

〔Example〕

The image forming apparatus according to the present invention will be explained in more detail with reference to the drawings.

FIG. 1 shows a full-color electrophotographic copying machine which is an embodiment of an image forming apparatus according to the present invention.

In this embodiment, an image carrier, that is, a photosensitive drum l having an electrophotographic photosensitive layer on its surface, is rotated in the direction of arrow X. On the left side of the photosensitive drum l, there is a primary charger 4 and a photosensitive drum l.
Directly below are a plurality of developing units, that is, developing units 2M, 2C, and 2Y in this embodiment.

2B, which moves in the left-right direction;
A cleaning device 5 is disposed diagonally above and to the left of each.

Further, an optical system 3 is disposed above the copying machine, and is configured to project the original image on the platen 26 onto the photosensitive drum l. Optical system 3 can use any optical system, but
In this embodiment, a first scanning mirror 24, second and third scanning mirrors that move in the same direction at half the speed with respect to the first scanning mirror 24 are used.
Scanning mirror 23, imaging lens 22, color separation B, G,
It is composed of an R filter 35, a CCD 34, a laser scanner unit 31, and fixed mirrors 32 and 33. Here, the scanner unit 31 is a well-known device that deflects laser light using a rotating polygon mirror, and detailed description thereof will be omitted.

Further, in the optical system 3, the original illumination light source 25 is configured to move together with the first scanning mirror 24. Therefore, the reflected light image of the document scanned by the first to third scanning mirrors 24.23 passes through the lens 22 and then passes through the BGR color separation filter 35. The CCD 34 separates the colors and converts them into electrical signals, and after this document information signal undergoes information processing such as A/D conversion, it is converted into a video signal by a microprocessor unit (rM, PU) that controls the entire copying machine.
It's called J. ) will be sent to. Based on this signal, the MPU oscillates a laser beam from a laser unit via a laser driver, and this laser beam hits the photosensitive drum 1 with 0N10FF.
Start the copy sequence while pressing L.

Furthermore, in this embodiment, a fixing device 18 is provided on the right side of the copying machine.
and paper feed device 15. 16 is arranged, and the transfer drum 6
A transfer paper conveying system 17 is disposed between the fixing device 18 and the fixing device 18 .

In the above configuration, the photosensitive drum 1 has a primary charger 4, an optical system 36, a developing device 100, a transfer device 6, a primary charger 4, an optical system 36, a developing device 100, and a transfer device 6.
and is applied by the cleaning device 5.

The developing device 100 includes developing units 2M (magenta developing unit) and 2C that are detachably held on a movable base 120.
(Equipped with cyan developing unit L 2Y (yellow developing unit) and 2B (black developing unit), the latent image of each color separated by color formed on the photosensitive drum is developed by each corresponding developing unit, and a toner image is formed. do.

The transfer device 6 typically has a transfer material carrying sheet (6a) on its peripheral surface.
A transfer drum is provided with a structure that electrostatically holds a transfer material, that is, a transfer paper, on the sheet.

The transfer drum 6 grips the transfer material, usually transfer paper, fed at the same timing from the paper feeders 15 and 16, and transfers the toner images of each color on the photosensitive drum 1 in a superimposed manner at the transfer position T. Rotate and transfer. A transfer charger 7 is disposed inside the transfer drum 6 at the transfer position 1iT.

The transfer paper onto which the toner images of each color have been sequentially transferred is transferred to the transfer drum 6.
It is released from the transfer drum 6 and separated from the transfer drum 6 by the separation charger 8 or the like. The transfer paper is then sent to a fixing device 18 by a transfer paper transport system 17. The toner image on the transfer paper is fixed onto the transfer paper by a fixing device (f18), and then the transfer paper is discharged onto the tray 19.

FIG. 2 shows a block diagram showing the overall control of the present invention. 2-1 Image reading section is COD.

It consists of a signal amplification circuit, an A/D conversion circuit, etc.
/ The signal after D conversion is input to the 2-2 image processing section.

2-2 The image processing unit performs editing such as moving and scaling the shading corrected image, and the signal after these processes is converted into 2
-3 Input to the image recording section. 2-3 1 in the image recording section
-2 The video signal input from the image processing section is recorded on paper such as recording paper, and a copy image is formed. Also, 2-40
The PU circuit section is a ROM.

It has a RAM, a timer circuit, etc., and controls the entire apparatus, including the image reading section 2-1, the image processing section 2-2, the image recording section 2-3, and the operation section 2-5 described later. 2-5 The operation unit inputs and manages keys on the operation panel used in this embodiment shown in FIG.

Controls the control and display of the liquid crystal display.

FIG. 3 shows an example of an operation section of a copying machine to which the present invention can be applied, and will be described below.

The key 301 is a numeric keypad group used for setting the number of copies, etc. The key 302 is a clear/stop key that requests clearing the set number of copies or canceling the copying operation, and the key 303 is a reset key that returns the copy mode to the standard state. Reference numeral 304 is a start key for starting a copying operation, and key 306 is a key for adjusting copy density, and the set density is displayed on a display 305. Key 308 is a key for selecting a paper feed stage, key 310
is a key to set the copy magnification to the same magnification, key 309 is an enlargement magnification selection key and reduction magnification selection key, key 318 is a key to select or cancel the enlarged continuous copying mode, and when selected, the display 1
1.3 lights up. The display section 319 is a dot matrix liquid crystal display section, the key 307 is a control key used to select or change the display contents of the display section 319, and the key 3]1 displays an explanation of the operation and a description of the function on the display section 319. These are the guide keys and LEDs used when

While the LED is lit, it indicates that the mode is guidance mode. The key 313 is a preheating key used to put the device into and out of the preheating state. The key 315 is used to select full color, monochrome black, and automatic selection mode, and the selection result is displayed on the LED 314. A key 316 is a key for measuring the original density and automatically adjusting the copy density by the machine, and when the automatic density adjustment mode is selected, an LED 317 lights up. The key 323 is a key for setting the zoom magnification in 1% increments.
9, a screen for settings is displayed. The key 326 is a key for setting vertical and horizontal independent zoom magnification, and a setting screen at that time is displayed on the display section 319. key 32
11;! , keys and LED when copying a two-page spread document onto separate sheets of paper. The key 325 is a key and LED for moving the image to the right or left, creating a margin for the binding margin, and copying.
A setting screen for setting the binding arrangement is displayed on the display unit 319. Key 327 is the image create key.
A setting screen is displayed on the display unit 319 using keys and LEDs for setting image creation modes such as negative/positive inversion and mirror image. Key 320 is color balance (magenta, cyan, black).

yellow) and the key to adjust the yellow color.
A settings screen is displayed on display section 319. The key 324 is
A color mode selection key is used to select a color that can be selected using keys other than the key 315, and a setting screen thereof is displayed on the display section 319.

Next, the operation of each key in this embodiment will be explained by showing a display example.

When the power is turned on or when the reset key 303 is pressed, the fourth display is displayed.
As shown in Figure (1), basic copy modes such as copy magnification, paper size, and number of copies are displayed.

To change the copy magnification, use the standard magnification key 309 and the same magnification key 310.
The copy magnification is set using the 1 zoom key 323, the vertical and horizontal independent zoom keys 326, and the like. The same size key 310 sets the copy magnification to 100%. When setting enlargement using the standard size change key 309, the enlargement is performed at a magnification that matches the size of the standard size paper. Also, when setting reduction, the reduction is performed at a magnification that matches the size of standard paper. Further, the standard magnification is displayed on the display unit 319. In addition, the zoom key 323 can set the magnification in 1% increments, and when the key 323 is pressed,
The display shown in FIG. 4(3) is displayed on the display section 319.

To set the magnification, press key 307 of control key group 307.
-1. Up/down the data with 307-2, or directly set the data with the numeric keypad 301.

After setting, key 307-5 of control key 307
Press to confirm the set magnification. The screen then displays the display shown in FIG. 4 (1) again. The vertical and horizontal zoom key 326 is a key for independently setting magnification in the vertical and horizontal directions, and when pressed, a setting screen shown in FIG. 4 (4) appears. Key 3 of control key 307
07-3 and 307-4 to select the vertical or horizontal direction, and to set the vertical and horizontal magnification, select the inverted magnification number by pressing the key 307- of the control keys 307.
1, 307-2 to change the data up or down, or use the numeric keypad 301 to directly set the data. When the key 307-5 of the control keys 307 is pressed after setting the magnification in both directions, the set magnification is determined. Then the screen will be 4th
Return to figure (1). The paper size in Figure 4 (1) is
Select by key 308. The number of copies is set using the numeric keypad 301.

When you press the color balance 320 key, Figure 4 (6)
The color balance adjustment screen shown in Fig. 3 is displayed. Select the color to be adjusted using the keys 307-3 and 307-4 of the control keys 307, and adjust the level of each color using the keys 307-1 and 307-2.

When the color mode key 324 is pressed, the control key 30 displays the color mode selection screen shown in FIG. 4 (5).
The color mode is selected in steps 7-1 to 307-4.

When the binding margin key 325 is pressed, the right side shown in FIG. 4 (7),
Or the setting screen for the key that creates the left binding margin will appear. Right or left, control key 307-3゜307-4
Select with numeric keypad or control key 307-1
．． The binding bar width is set in step 307-2.

When the image create key 327 is pressed, the screen changes to the image create mode setting screen shown in FIG. 4(2). The control keys 307-1 and 307-2 are used to select a mode, and the keys 307-3 and 307-4 are used to turn the mode on and off.

When the *mode key 328 is pressed, the screen becomes a *mode screen for setting various modes shown in FIG. 4(8). Select a mode using the control keys 307-1 and 307-2, press the key 307-5 to call up each screen, and perform settings. *The screens displayed when the mode is set are shown in Fig. 5 (1) to (6).

In this embodiment, the characters normally displayed are 8x1 for hiragana, katakana, and alphabets, as shown in Figure 8 (1).
Characters composed of 6 dots are used, and kanji are (2)
As shown in the figure, characters made up of 16 x 16 dots are used. However, in this embodiment, all character font data is a combination of fonts in units of 8×8 dots. In other words, as shown in FIG. 8(1), the letter "A" is also composed of two fonts, (a) and (b).

Kanji composed of 16x16 dots, Figure 8 (2)
The character “difference” shown in (c), (d), (
e).

It consists of four fonts (f).

Next, a method for displaying characters on the display section 319 will be explained. FIG. 11 shows the flowchart.

First, in step 1.1-1, it is determined from the code of the character to be displayed whether the character is composed of two fonts or four fonts as shown in FIG.

When composed of four fonts (1, 1-3) C (
Set 4 to the counter). If the font is composed of two fonts (11-2), set 2 to C. Next, at 11-4, select the phono key corresponding to the character code in FIG. 9 (1) or FIG. 10 (1)! - Using the data table on the ROM of the CPU circuit section in which data addresses are written, read the address written in the font code corresponding to the code of the displayed character and store it in a predetermined RAM. Next, in 11-5, see Figure 9 (2) or Figure 10 (2).
) The address of the 7 font data corresponding to the font code is read using the data table on the ROM of the CPU circuit section in which the address of the font data corresponding to the font code is written. and Figure 9 (3) or 1 O
The font dot data (8 bytes) written at that address is read from the font dot data table shown in FIG. Next, in step 11-6, C (counter) is subtracted. Next, in step 11-7, it is determined whether C is 0, and if it is O, the process ends.

If it is not 0, set the address of the next font code with -8. The address is set by adding 8 bytes to the address data stored in a predetermined RAM in step 1-4. Similarly, repeat steps 11-5 and below until C (counter) reaches 0.

Next, the upper or lower part of the character according to the present invention is displayed on the display section 319.
This section explains how to display it on the screen. FIG. 12 shows the flowchart.

First, in step 12-1, it is determined from the code of the character to be displayed whether the character is composed of two fonts or four fonts as shown in FIG. 4
(12-3) Set 4 to C (counter). If the font is composed of two fonts (12-2), set 2 to C. Next 12
-4, the characters to be displayed are determined using the data table in the ROM of the CPU circuit section in which the address of the font data corresponding to the character code in Figure 9 (1) or Figure 10 (1) is written. The address written in the font code corresponding to the code is read and stored in a predetermined RAM. Next, in step 12-9, it is determined whether only the lower part of the font data is to be displayed. If only the lower part is to be displayed, set the font code address in 12-10. The address set is t2
-4 adds 8 bytes to the address data stored in a predetermined RAM and sets it. Next, in step 12-11, C (counter) is subtracted. Subsequently, the processing in step 12-5 and subsequent steps are performed.

If only the lower part is not to be displayed, perform the processing in step 12-5 and subsequent steps.

In step 12-5, correspond to the font code using the data table on the ROM of the CPU circuit section in which the address of the font data corresponding to the font code in Figure 9 (2) or Figure 1 O (2) is written. Read the address of the font data. and Figure 9 (3) or Figure 10 (3)
The dot data (8 bytes) of the font written at that address is read from the dot data table of the font, and written to a predetermined address on the display section 319.

Next, C (counter) is subtracted at 12-6. followed by 12
At -7, it is determined whether C is 0, and if it is O, the process ends. If it is not O, it is determined in step 12-12 whether only the upper part of the character is to be displayed. If you do not want to display only the upper part, set the address of the font code in 12-8. The address is set by adding 8 bytes to the address data stored in a predetermined RAM in step 12-4. When displaying only the upper part, C (counter) is subtracted in 12-13.

Next, in step 12-14, it is determined whether C is O, and if it is 0, the process ends. If it is not 0, set the address of the font code in 12-8. The address set is 12-4
Then, 8 bytes are added to the address data stored in a predetermined RAM, and the data is erased. In the same way, repeat steps 12-9 and below until C (counter) reaches 0.

12-9 in Figure 12. The determination process in step 12-12 will be explained in detail. The display area is as shown in Figure 14.
■It is divided into parts.

FIG. 15 shows the structure of a data table for displaying the image shown in FIG. 14. 15, 1501 is a display data table, 1502 is the total number of rows of display data, 15
03 to 150B are data at addresses where data for each line to be displayed is written. The character code data to be displayed is read from the data at this address.

FIG. 16 shows details of the determination process at 12-9 and 12-12 in FIG. 12. In FIG. 16, T is the top line number normally displayed at the top of the display range, and the 14th
In the illustrated example, the data on the second line is normally displayed at the top. Therefore, the value of T is 2. D is the 15th
This is the total number of data lines to be displayed, shown at 1502 in the figure, and in this case, 6 is input.

At 1602, it is determined whether T() is the first row. If it is on the first line, a blank is displayed in the line (■) in FIG. 14 in step 1603. If it is not the one in the first line,
At 1604, the value obtained by subtracting 1 from T, that is, the data of the previous row, is read from the data table in FIG.
Display in the row shown in the figure ■. Next, in 1605, the data of T is read from the data table in FIG. 15 in the same way and is normally displayed in the row (2) in FIG. Next, in 1607, the result obtained by adding 1 to the data of T is compared with D (total number of display data rows), and T+1
>D, in step 1608, a blank is displayed in the row of ■■ in FIG. If T+1≦D, the data at T+1 is read from the data table in FIG. 15 at step 1609 in the same way as step 1605, and is displayed in the line ■ in FIG. Then at 1610, 2 to T
, and the number of D display data, T −i
-2>D, a blank is displayed in the ■ line in Figure 14 and the process ends. Furthermore, if T+2≦D, the data on the T+2 row is read from the data table in FIG. 15, and is displayed in the row (■) in FIG. 14 with only the upper part displayed, and the process is terminated.

Note that when displaying the last line, the previous line may be displayed normally. This can be done by executing step 1604 with T=D-1 when T=D (excluding D=1).

In the above example, 8x16 dot characters or 16x18
The dot characters were divided into 2 and 4 parts, respectively, and displayed on the display in an 8x8 font, as shown in Figure 13 (a).
, When displaying data as 8x16 font data or 16x16 dot font data as shown in (b), after displaying characters once, blank codes etc. are overwritten at the top or bottom. By doing so, the same thing as in the above embodiment can be achieved.

〔Effect of the invention〕

As explained above, according to the present invention, the presence of data on the next page of the display screen does not have to be indicated by any kind of mark, but the top or bottom character line of a plurality of character lines displayed on the display section can be displayed on the display screen. By displaying the lower half or the upper half of characters, it is possible to fully understand that data such as characters exists on the next or previous page. Furthermore, it is easier to understand the presence of data such as characters on the next or previous page than by displaying some kind of mark, and data can be prevented from being overlooked.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a copying apparatus to which the invention can be applied, Fig. 2 is a block diagram of the apparatus shown in Fig. 1, Fig. 3 is a diagram showing the operation panel, and Figs. 4 and 5 are display screens in copy mode. FIG. 6 is a diagram showing a conventional example of scroll display; FIG. 7 is a diagram showing an example of the scroll screen of the present invention; FIG. 8 is a diagram showing the font structure of characters; Figures 10 and 10 are diagrams showing examples of font data display tables, Figures 11 and 12 are flowcharts 1 and 1 of font display.
Figure 13 is a diagram showing an example of a font data display table, Figure 14 is a diagram showing display lines of the display section, Figure 15 is a diagram showing a display data table, and Figure 16 is a detail of Figure 12. This is a flowchart diagram illustrating the following. 319 is a liquid crystal display section, and 307-1 to 307-5 are control keys. (C) rti> (e) (f) (1) (z)

Claims (1)

[Claims] (1) means for generating a character string related to image processing mode settings; means for displaying the character string generated by the generating means in units of multiple lines; and displaying the number of lines of the character string generated by the generating means. and a control means for displaying the lower part or the upper part of the character string displayed on the top line or the bottom line of the display means when the number of lines is greater than the number of lines that can be displayed simultaneously on the display means. A display device for an image processing device.