JPS60249182A - Driving of sentence display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for driving a text display device that displays information necessary for operations performed by an operator in functions such as a copying machine, printer/facsimile machine, etc. .

[Prior art]

In recent years, devices such as copiers have begun displaying actual text corresponding to the displayed information in order to display a wealth of operating instructions and maintenance information in a minimum amount of space and in an easy-to-understand manner. There are many products on the market.

This text display device displays various display texts corresponding to the operating status by switching them at the same time on the same display/channel, but in conventional text display devices, all display texts are displayed in the same manner. The display time was set to be displayed.

That is, since the display time is always constant regardless of the length of the displayed text, there is an inconvenience that the operator is given a longer waiting time than necessary, especially when a text with a small number of characters is displayed.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for driving a text display device that allows each type of display text to be displayed with an appropriate display time.

[Summary of the invention]

Therefore, in this invention, when a plurality of different display contents are cyclically switched and displayed in a display corresponding to one operation state, the display time of each of the display contents is variably controlled according to the sentence length in one display contents. Particularly to achieve the above objectives.

〔Example〕

FIG. 1 shows an example of a control configuration for carrying out the method of the present invention, and in this embodiment, the case where the present invention is applied to a copying machine will be explained in detail.

In FIG. 1, a control device 1 controls various drive devices (not shown) in the copying machine based on the operator's operations to control operations related to a series of copying processes, and also controls various parts of the copying machine. Arranged sensor Sl#SII#...
The detection output of Sn is received via port 2, and based on the detection output, operating state information indicating the operating state of the device is formed, and this is sent to display control unit 3 via input port 2. .

The information detected by the sensor S1*82...SnK includes, for example, the amount of toner in the developing device, the fixing temperature, paper jam, etc. The display control section 3 is controlled by the central processing unit (hereinafter referred to as CPU) 4. , internal circuits are appropriately connected to a bus so that information can be exchanged with each other.

Among these, I10 port 5 exchanges information with Ilo, N-)2. ->, outputs the operating state information received via the I/Q port 2 to the CPU 4 via the path 6;

Next, in the text ROM 7, various display texts as shown in the table below are stored in respective predetermined storage areas according to appropriate character codes such as JIS codes.
selects a predetermined sentence to be displayed at each time point from the plurality of sentences based on the operating state information received through the I10 port 5.

By the way, as shown in the above table, the number of characters of each display sentence is different, and in the display device, the display time is variably controlled according to the length of each display sentence. For example 1
If the display time per character is set to 160 m5ec, the sentence number "1" will be 1.12 (16
0 mgec
meCX 13) Display for seconds.

The display time of each display sentence is measured by a timer circuit 8, and the CPU 4 controls each section to display each display sentence for a predetermined time based on the time measurement output of the timer circuit 8.

Next, the character code string corresponding to one predetermined display sentence read from the text ROM 7 by the CPU 4 is stored in the display RAM.
9 will be remembered. The storage output of the display RAM 9 is input to a character generator 10, and the output converted by the character generator 10 into dot matrix data corresponding to the shape of an actual character is input to the display drive section 12. The input/output of these display RAM 9 and character generator 10 is controlled by a timing pulse signal output from a timing generation circuit 11.

Next, the display driver 12 uses a light emitting diode (LED)
, Fluorescent Display Tube (FIP), Electroluminescence (
EL), liquid cord (I, CD), etc. an X driver 14 that scans and drives the display panel 13 in the X direction, and a Y driver 15 that scans and drives the display panel 13 in the Y direction.
The driver 14 includes a shift register 16 according to the timing pulse signal output from the timing generation circuit 11.
The output of the shift register 18 is inputted to the Y driver 15 via the latch 17, and the output of the shift register 18 is inputted to the Y driver 15 in accordance with the timing pulse signal.

That is, the display device shown in this embodiment is a so-called RAM.
The character code string stored in the display RAM 9 is transferred at high speed to the display panel 13 via the character generator using a timing pulse signal outputted from the timing generation circuit 11, thereby displaying a predetermined value. Perform display operation. In this embodiment, it is assumed that the maximum number of characters displayed on the display panel 13 is 20 characters per line.

A specific example of the operation of such a text display device will be explained with reference to the flowchart shown in FIG. FIG. 2 is a schematic flowchart showing the text display procedure, and since it is a part of the entire operation of the copying machine, the start and end are not shown.

The state of the copying machine during copying operation is determined by the sensor S 1 r8
2...Sn has been successfully detected, and the detected content is read by the CPU 4 via the r10 port 5 as operating state information, and the corresponding text number is determined.

By the way, when determining the overall operating status of the copying machine based on the above operating status information, if, for example, copying is possible but the amount of toner remaining is low, the following messages will be displayed: It is necessary to display the following two sentences.

At this time, since the maximum number of characters displayed on the display panel 13 is 20 characters, it is impossible to display these two sentences at once, and normally these two sentences are repeated alternately as shown in Figure 3. indicate.

In addition, when displaying the sentence ``Gunkou Cover Fakete Gunkou Wotori no Zoitekudasai'' when there is a paper jam, etc., the number of characters in this sentence exceeds 20, so in this case, the sentence should be divided into two sentences. The text is divided into elements, and these two text elements are alternately and repeatedly displayed as shown in FIG.

In this way, when it is necessary to display multiple lines of text on the display panel 13, which has a maximum display character count of 20 characters per line, depending on the operating state of copying or the length of the displayed text, 9. The device for determining the operating state of the machine determines whether or not it is necessary to display multiple lines of text in the display corresponding to this operating state (step 100). In this embodiment, it is assumed that when displaying a single time corresponding to one operation state, all of the time per time can be displayed in up to two lines.

Now, the sentences determined based on the operating status information are □ “! Machikudasai” with sentence number “1” and “!Machikudasai” with sentence number “3”.
If there is only one copy available, the CPU 4 stores the character code string corresponding to the determined sentence in the sentence ROM.
7 to the display RAM 9, and a display sentence corresponding to the content of this hindlimb transfer is displayed on the display panel 13 (Stella f110). The CPU 4 continues to display the above-mentioned display text until a change in the operating state of the copying machine is detected based on the operating state information (step 120).

However, if the display content of the prefecture quota determined according to the operating status information is two sentences displayed alternately as described above, or one display sentence is divided and these are displayed alternately, The CPU 4 variably controls the display time depending on the length of each display sentence.

For example, as shown in Fig. 3, when displaying "Copy now..." and "Tonerfu hokyushitechudasai" alternately, the character code string corresponding to "Copy now..." is displayed from the text ROM 7 in the display RAM. 9 and displays the message "Copy now..." on the display device 13 (step 1'30), and at the same time starts the timer circuit 8. Then, when the time measurement output of the timer circuit 8 matches the preset display time of "Copy time", the display of "Copy time" is stopped (step 140), and this time, the corresponding character "K" is displayed. Display code string from text ROM 7 RAM 9
and displays the message "Toner Required" on the display device 13 (step 150). The timer circuit 8 is started in synchronization with the start of the display, and the CPU 4 stops the display when the clock output of the timer circuit 8 matches the preset display time of "Toner Refill" (step 160); This time, follow the steps described above again to display "Copy space...". Thereafter, unless the operating state of the copying machine changes based on the operating state information (step 170), the CPU 4 repeatedly displays these two sentences alternately at each predetermined display time.

By the way, regarding the display time of each display text, if the display time of one character stroke is 160 mgec as described above, then "Copy space...JUL, 44 (160m5
ec
15) seconds. At this time, the number of characters is determined based on the effective sentence length from the first character to the last character in one line of the display panel.

The same is true when a whole sentence is divided into two sentence elements and displayed alternately and repeatedly, as shown in Figure 4. are displayed alternately with each predetermined optimal display time.

In this way, in the above embodiment, when displaying one action corresponding to one operating state, two display contents are displayed alternately with each appropriate display time, so that the operator is always informed of the optimum force time. You will be able to give display instructions using .

In the above embodiment, the present invention is applied when two sentences are displayed alternately, but the present invention can also be applied when two or more sentences are displayed cyclically in response to one operation state. Feel free to apply it.

In addition, the display panel is not limited to one line display as shown in the embodiment, but also in a display device having a display panel capable of displaying two to multiple lines, the display panel can display a single line corresponding to one operating state. When it is necessary to display a plurality of different display contents cyclically, each display content may be displayed with an optimal display time sound depending on the length of the displayed text, as in the above embodiment.

Further, the content to be stored in the text ROM 71 may be arbitrary in terms of its type or specific expression, and is not necessarily limited to the above embodiment, and other circuit configurations may be arbitrarily stored as long as they have similar functionality. It is.

In addition, in the above embodiment, the displayed text is shown using katakana, but it can also be written in hiragana, kanji, kanji, or even English.
Display text using French or the like may be used.

Further, it goes without saying that the present invention is not limited to copying machines, but may be applied to other devices such as 7mm, 7mm, and printers.

〔Effect of the invention〕

As explained above, according to the present invention, when switching and displaying a plurality of display contents cyclically, the operator has to deal with the busy situation in order to display each display content with the optimal display time according to the length of each sentence. It is possible to eliminate the problem of waiting time longer than necessary, and to realize a suitable display operation for the operator.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a specific example of the configuration for carrying out the present invention, FIG. 2 is a flowchart showing a specific example of the operation of the same embodiment, and FIGS. 3 and 4 are display channels, respectively. It is an explanatory view showing a top display mode. 1...Control device, 2,5...I10 port, 3...
・Display control unit, 4...CPU, 6...Nonosu, 7.
...Text ROM, 8...Timer circuit, 9...Display RAM, 10...Character generator, 11...
・Timing generation circuit, 12...Display drive unit, 13.
...Display panel, 14...X driver, 15. ,,Y
Dry Nog, 16, 18...Shift register, 17.
··lunch. Figure 2

Claims (1)

[Claims] A method for driving a text display device that cyclically switches and displays a plurality of different display texts related to non-operation guidance on the same display panel according to the operating state of the device, comprising: 1. A method for driving a text display device, characterized in that the display time of each display text is variably controlled depending on the display time of each display text.