JPS60113262A - Display device of image forming device - Google Patents

Abstract

PURPOSE:To call an operator's attention to light abnormality by displaying a pattern other than a usual pattern on a display panel of a copying machine, where two kinds of display pattern can be selected, if the light abnormality occurs. CONSTITUTION:Usually, the first pattern including copy number input keys 110- 119 and number displays 120-121 is displayed. When a pattern switching button is operated, the second pattern including a reduction key 77, an enlarging key 79, density selecting keys 87-89, etc. is displayed. If light abnormality such as absence of a toner in a toner hopper or absence of paper in one cassette where copying is possible occurs, the pattern is switched to the second pattern to call an operator's attention to this light abnormality. If important abnormality such as paper jam or the like occurs, the pattern is switched to the third pattern indicating the important abnormality.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an image forming apparatus that graphically displays various states or guidance for setting copying conditions on one display surface, for example in an electronic copying machine. Regarding the display device ξ of d.

[Technical background of the invention and its problems]

For example, when an electronic copying machine displays an abnormal state, it is common to display the state of the copying machine to alert general users, but when it is in a normal state, the state is not displayed. There is no need to keep it in place, and it is conceivable that it may be displayed in another way under normal circumstances to give a strong warning in case of an abnormal condition. In such a display device, it is necessary to automatically display the status in order to immediately notify the user when an abnormal condition occurs, and for example, the abnormal condition may indicate that there is no toner in the toner hopper. If copying is possible, more information can be obtained by switching to another display.

Furthermore, if the display is made switchable in this way, and the display remains switched, it will return to normal when the user who switched the display leaves the copier without doing anything and is replaced by another user. I can't understand what's not.

[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 an image forming apparatus that can reliably and strongly make the user aware of the fact that the image forming apparatus is no longer in a normal state. The purpose of the present invention is to provide a display device for displaying images.

[Summary of the invention]

The display device of the image forming apparatus according to the present invention has a first display/turn indicating the status of the image forming apparatus and a second display/turn indicating guidance for setting image forming conditions. The second display/IP turn is displayed, and the first display pattern is displayed when the image forming apparatus is no longer in a normal state.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show an electronic copying machine as an example of an image forming apparatus equipped with a display device according to the present invention.

That is, 1 is a copying machine main body, and on the top surface of this main body 1 is provided a document table (transparent F5 plate) 2 for holding a document, and on this document table 2 is a document feeder (well-known 3 is provided so as to be openable and closable. An exposure run f is provided on the lower surface side of the document table 2.
4, an exposure optical system consisting of a mirror 5, 6, 7, a lens unit 8, and a machined mirror 9 is provided, and by optically scanning the document surface with these exposure optical systems, an image of the document is created. An image is formed on the surface of the photoreceptor drum 10 (slit exposure). The photosensitive drum 10 rotates in the direction of the arrow shown in the figure, and its surface is first charged by the charging device 11, and then an electrostatic latent image is formed on the surface by slit exposure of the image. The latent image is made visible by applying toner by the developing device 12.

On the other hand, the paper P is taken out one by one from the selected upper paper feed cassette 13 or lower paper feed cassette 14 by the paper feed row 215 or 16, and is taken out from the paper guide path 17 or 18.
The image is guided through the roller pair 19 to a pair of registration rollers 19, and sent to an image transfer section by the pair of rollers 19.

Here, each of the paper feed cassettes 1.9 and 14 is connected to the main body 1.
The paper P sent to the image transfer section is removably provided at the lower right end of the image transfer section, and either one can be selected in the control panel 32 described above. When the charger 20 is in close contact with the surface of the photoreceptor drum 10, the toner image on the photoreceptor drum 10 is transferred by the action of the charger 200. This transferred paper P is used for peeling. The paper is electrostatically peeled off from the photosensitive drum 10 by the action of the charger 210 and conveyed through the paper conveyance path 22, and is sent to a pair of fixing rollers 23 as a fixing device provided at the terminal end of the paper conveyance path 22, where it passes through. The transferred image is fixed.Then, the paper P after fixing is discharged to a paper discharge tray 25 outside the main body 1 via a pair of paper discharge rollers 24.On the other hand, the photosensitive image after transfer is body drum no 0
After the charge is removed by the charger 26, the residual toner on the surface is removed by the cleaner 27, and the afterimage is erased by the charge removal run f2g to return to the initial state.

Note that 29 is a document guide for inserting the document into the document feeder 3, and 30 is a document tray for receiving the document discharged from the document feeder 3.

In addition, 3 is an operation unit, and a control panel 32 that integrates a liquid crystal display panel and a transparent switch panel (operation switch) constituting the display device of the present invention into one panel, and the name of the paper size. Size display section 3 where is displayed
3, and a display priority switch 34, which will be described later.

Figure @3 schematically shows the overall control circuit.

That is, No. 4 is a microcomputer (hereinafter simply referred to as microcomputer) as a main control section that controls the entire copying machine. This microcomputer 41 is connected to a state detection sensor 43, a state detection switch 44, and a display/!, which will be described later, via an input interface 42 such as a data selector. The display priority switch 34 for setting turn priority
each signal from the control channel 320, an operation signal from the transparent switch channel 45 provided on the surface of the control channel 320,
A temperature signal from a heater control section 49, which will be described later, is input. In addition, the transparent switch i4 45 is equipped with a microcomputer 4.
A scan signal is being sent from 1. Here, the state detection sensor 43 includes a toner sensor that detects the density of toner in the developing device 12, a paper out sensor that detects the presence or absence of paper P in the paper feeding force upper rack 13, 14, and the like. In addition, the state detection switch 44 includes a paper feed switch and a paper ejection switch that detect the transport state of the paper P, a toner intake switch that detects toner emptying in the developing device 12, a toner emptying switch 4', and a toner intake switch that detects when the collected toner is full. The microcomputer 41 outputs various control signals, including a toner full switch that detects when the toner is full and a position detection switch that detects the position of the exposure optical system. Lamp regulator 47, high voltage power supply section 48, heater control section 49
, and motor.

The signals are output to various drive systems 50 such as solenoids. The rung regulator 47 controls the energization of the exposure lamp 4 to adjust the image density by 611 steps. The high-voltage power supply section 48 supplies high voltage to the various strip cutters, and also supplies a developing bias voltage to the developing device 12. The heater ff1lJ upper part 49d and the pair of fixing rollers 23 are controlled to maintain the temperature at a predetermined value, and the 111 signal thereof is output. In addition, the microcomputer 41
Various signals are also output to the liquid crystal display control section to perform display using a liquid crystal display or panel.

To explain the liquid crystal display control part, a data selector 51 is connected to the microcomputer 4. This data selector 51 switches according to the select signal output from the output terminal OS of the microcomputer 41, and output terminal OD.

Each signal output from OL and QC is The signal is transmitted to either the second or third liquid crystal driver 52, 53, or 54. That is, when changing the display state, the microcomputer 4I first outputs a select signal to the output terminal OS to switch the data selector 51, selects the liquid crystal driver driving the segment whose lighting state is to be changed, and then outputs the Terminal O
A 32-bit data signal that selects the segment to be lit is sent to D, a latch signal is sent to output terminal OL, and a latch signal is sent to output terminal OL.
A clock signal is output to C. 1st. Second.
The third liquid crystal driver 52, 53, 54 has its input terminal ■
D11ID2゜ID,? A data signal from the microcomputer 4 is input to the 4th microcomputer. In this case, input terminals 1c1, Ic2
It is input in synchronization with the clock signal from the microcomputer 4I that is input to the IC3.

Further, 55 is an oscillation circuit which oscillates at the optimal frequency for driving the liquid crystal display element, and its output signal is used as the driving signal A. Second. Third liquid crystal driver 52, 53.
64 input terminals DPJ 1 , DP21 and DP31.

The drive signal A is inverted by the inverter 56 to become a drive signal B having the opposite polarity. Input terminal DP12.DP22 of 2nd and 3rd liquid crystal dryer 52.53.54
．． It is input to DP32.

However, the first. Second. Third liquid crystal driver 52°53.
54 output terminals 021 to O13! +02s~0
212+03'1''-031m outputs a segment drive signal corresponding to the content of the data signal input to the input terminals D11ID, ?, and IDJ, and each of these drive signals is output to the LCD/mother panel 57. Each segment 8
11 ~ S1s,, 82 l ~ S 23 Goose, S
31 to s and vB respectively, and a common '1 provided opposite to each of these segments)K.
The driving noxis B is applied to the Xt poles 5B and 58.58. The liquid crystal display/4-channel 57 is made up of three layers of liquid crystal display elements, as will be explained in detail later, and the display graphics of each layer are combined to form one display screen. 1゜Second. Third liquid crystal driver 52.53.
Each of the segments 54 is adapted to drive a segment of one layer of the three layers of liquid crystal display elements. In addition, the transparent switch/f panel 45 is arranged on the surface (on the display surface) of this liquid crystal display/IP panel 57, and can detect whether the key display part on the display surface is pressed or not. It looks like this.

FIG. 4 shows the above-mentioned 1. Second. Third liquid crystal driver 52.53
．． 54 in detail. That is, the shift registers /611 to 61s are connected in cascade, and the first stage shift register 61 has input terminals ID (IDJ,
A data signal from ID2゜IDJ) is input, and each shift register 611 to 61■ has an input terminal IC.
Clock signals from (ICI, IC2, IC3) are input. Accordingly, the data signal from the input terminal ID is sequentially transferred to each of the 32 shift registers 611 to 6133 in synchronization with the clock signal from the input terminal IC'. Each of the above shift registers 611 to 61
sIK is the input terminal IL (ILI, IL2, ILJ
) are directly connected to store registers 21 to 6232, which hold their respective contents by latch signals from the storage registers 21 to 6232. Each of the store registers 21 to 6233 is connected to a switch 63 depending on the content held therein. ~6333 is busy when opening/closing each, so the output terminals 01~0.92
(011-01, l.

021-0232m031-OJsm) The drive signal A or B is selectively output. That is, for example, when the content of the store register is 1'', the drive noisy A is
0'', the opening/closing control is performed so that the drive signal B is output to the corresponding output terminal.

Here, the operation of the liquid crystal display control section will be explained. For example, data signal C11001 as shown in FIG.
0000100000000010000100000
00), a clock signal, and a latch signal are output from the microcomputer 41, respectively, and input terminals ID and fc of the liquid crystal driver.
, IL, the data signal is input to each shift register 6 in synchronization with the clock signal as described above.
11 to 61s2, and at the time the transfer is completed, the values held are transferred to shift registers 611. 612
+615+61.0.61!・, @1# in 6no2s,
In other shift registers, it becomes "0". When the liquid crystal driver receives the latch signal output from the microcomputer 41 at the time when the output of the busy data signal is finished as described above, the contents of the shift registers 6-5 to 61s are stored in the store registers 21 to 623, respectively. TIC is retained. That is, store registers 621, 622, 625, 621
or 6226+ 11# is held in 6226, "o" is held in other store registers, and the output terminals Ql,
02,05,010゜□to, 02sK is drive/? The drive signal B is outputted to the other output terminals. This output causes output terminals 01 to
Each segment S1 to 832 (S 1
．． -8 Is,,S 2. -82. ,,S 3□～
S33 has a voltage waveform as shown in FIG. 6 (ω(e)), that is, segments 81.S2.BS, 810°S20.
In S25, the voltage (drive pulse A-) in FIG. 6(d) is applied to the segments 83, 84 . S6~sy.

811-S19. S21~S 24.826~S J
2 is applied with the voltage (driving) f sis B) in FIG. 6, respectively. At this time, since the driving force B is applied to the common electrode 58, the common electrode 58 and the segment S
1, 82, 85, SJO, 820°825, a voltage having an AC waveform as shown in FIG. 6(f) is applied. As a result, segment S1°82.85. S10,8
20,825 is in a lighting state. On the other hand, segment S3
．． s4+s6~sy, szz~S19, S21~5
Since the voltage in phase with the common electrode 58 is applied to ff4°826-832 as shown in Fig. 6 [c] (e), the voltage in Fig. 6 (
There is no difference in position between them as in g), so the segments S3, 84, 86-89. F311~519
1S21-S24. S26 to s32 are in a non-lighting state.

Next, the liquid crystal display A? An example of arrangement of segments in each layer of the channel 57 will be described. Figure 7 shows the first liquid crystal driver 5.
FIG. 2 is a layout diagram of segments of a layer (hereinafter referred to as a first layer) of a liquid crystal display element driven by a liquid crystal display device. That is, 2 is a print key display segment for starting the copying operation, and is displayed below the switch PSWQ arranged in the transparent switch/4' channel 45, which will be described later. The copy operation starts when the is turned on. Similarly, in the displays described later, there are also displays below the switches on the transparent switch panel 45 to indicate the meaning of the switches, but for the sake of simplicity, the relationship between the transparent switch panel 45 and each display will be explained later. To explain this, I will simply write it as the so-and-so key here. 72 is a cassette selection key display segment for selecting the upper or lower paper feed cassette; 73 is a segment indicating that the lower paper feed cassette 14 has been selected; and 74fi is a segment for displaying the upper paper feed cassette 13.
is selected, 75 is a segment for displaying the lower paper feed cassette for the display of segment 73, 76 is a segment for displaying the upper paper feed cassette for the display of segment 74, 77° 78.79 is a copy segment This is a segment for displaying a magnification setting key for setting the magnification. Segment 77 corresponds to the reduction key corresponding to segment 8° for pictogram display indicating reduction, and segment 78 corresponds to segment 81 for pictogram display indicating same size. Same size key,
Segment 79 is segment 8 for pictogram display indicating enlargement.
2 and corresponding enlarged keys are shown, respectively. 83
-86 are segments that display the copy magnification set with the magnification setting key, of which segments 84 and 85 are composed of seven segments (a to g) arranged in a Japanese pattern as shown in Fig. 8. ing. 87 is an exposure mode switching key display segment for switching between automatic exposure (automatically sets an appropriate iWt exposure amount) and manual exposure (for example, 7 levels of exposure amount can be selected arbitrarily); 88.89 is an exposure mode The switching key is used to set the exposure amount when the manual exposure mode is used.Segment 88 is the key to increase the exposure amount (the copied image will be lighter), and segment 89 is the key to decrease the exposure amount. (The copied image will be darker)
The keys for each are shown. Reference numeral 90 is a pictogram display segment indicating that the exposure mode is automatic, and 9 is a segment for displaying a scale indicating the level of exposure when displaying the exposure amount in manual exposure mode.

In addition, each of the above segments is shown in each segment 511 in FIG. 3.
-8lsz as shown in Table 1 below. In this case, as is clear from Table 1 below, among the segments in FIG. 3, segment S1 凰 * S J 4 * 8
12 degrees means that a plurality of segments in FIG. 7 are connected in common. Also, segment S in Figure 3
77 #8 Is r S Jts+ S 1z4+
There are no segments corresponding to 8136 to Sl■ in FIG. 7, and therefore they are reserved segments.

Table 1 FIG. 9 is a layout diagram of the segments of the layer (hereinafter referred to as the second layer) of the liquid crystal display element driven by the second liquid crystal driver 53. That is, 101 to 107 are display segments indicating the set exposure amount in the manual exposure mode described above, and by overlapping with segment 91 in FIG. 7, which of the seven levels of light amount is set is displayed. do. 108 is a segment for displaying a clear key to clear the set number of copies (setting the set number to 1 so that the next setting can be accepted), and 110 to 119 are segments for setting the number of copies (number of copies), etc. Numeric keypad display segments 120 to 122 are segments that display the number of sheets set with the numeric keypad or clear key and the number of sheets on the frame during copying operation, among which segments 121.12
2 consists of seven segments a-g shown in FIG. In addition, each of the above segments corresponds to each segment S in Figure 3.
2. ~5232 correspond as shown in Table 2 below. In this case, as is clear from Table 2 below, among the segments in FIG. 3, segment S22. This means that a plurality of segments in FIG. 9 are commonly connected.

Also, segment 82 in FIG. .

5216 *S21@〜522o・S2! 81
The segments corresponding to S 2so-8232 are not present in FIG. 9, so they are reserved segments.

Table 2 FIG. 10 is a layout diagram of the segments of the layer (hereinafter referred to as the third layer) of the liquid crystal display element driven by the third liquid crystal driver 54. In other words, 131 and 132 are pictogram display segments indicating whether or not a copying operation is possible;
1 alone indicates that copying is possible, and both segments 131 and 132 indicate that copying is not possible (during warm-up). 133-13
Reference numeral 6 denotes an instruction display segment for indicating the selected paper size, and is adapted to indicate the paper size in opposition to the paper size name on the size display section 33 (see FIG. 1). 137 is a segment for displaying a pictogram indicating that the toner hopper of the developing device 12 is empty; 138 is a segment for displaying a pictogram indicating that the collected toner storage section is full of collected toner; 139
140 is a pictorial display segment indicating that a paper jam has occurred in the fixing roller pair 23 or the conveyance path in the vicinity thereof; 140 is a segment for displaying a pictogram;
7 is a segment for displaying a pictogram indicating that the paper P is wrapped around, and a paper jam has occurred due to the paper P being wrapped around; 142 is a segment for displaying a pictogram indicating an instruction to call a service person; 143 to 146 are segments for displaying a pictogram indicating the conveyance state of the paper P; 147
148 is a segment for displaying the document feeder 3, 148 is a pictographic display segment indicating that a paper jam has occurred in the document feeder 3, and 149 is a segment for indicating that the paper P in the M distribution paper cassette 13 or 14 has run out. 150 is a segment for displaying a pictogram indicating that the upper paper feed cassette 13 has been selected. 151 is a segment for displaying a pictogram indicating that the lower paper feed cassette 14 has been selected. 152 is a segment for displaying a pictogram indicating that the lower paper feed cassette 14 has been selected. Paper stand display segment, 1
53 is a segment for displaying the lower cover of the copying machine main body 1; 154 is a segment for displaying the upper cover in the closed state;
155 is a segment for displaying the upper cover in the open state, 1
56 is a display segment of the photosensitive drum 1o, 15
Reference numeral 7 indicates a strag key display segment for stopping the copying operation, and 158 indicates a display switching key display segment for switching the content of the display screen created by changing the combination of three-layer liquid crystal display graphics. In addition, each of the above segments is the third
The segments 531-833° in the figure correspond as shown in Table 3 below. In this case, as is clear from Table 3 below, among the segments in Figure 3, segment) SJz5
This means that a plurality of segments in FIG. 10 are commonly connected. Also, segment S 34 in FIG.
The segments corresponding to r S J2111 S 3so-8J32 are not present in FIG. 10, and therefore they are reserved segments.

Table 3 Although not specifically shown, a transparent common electrode 58 is provided on the surface facing each segment of the first to third layers.

Next, an example of the arrangement of the switches in the transparent switch i9 channel 45 will be explained using FIG. 11.

The transparent switch panel 45 has a switch P as shown in the figure.
SW, C85W, CH8W, SW o~
SW9 is provided, and each of these switches is a well-known type in which, for example, transparent electrodes that act as contacts are arranged in a matrix, and are turned on when the switch portion is pressed. .

Each of the switches corresponds to each segment of the first to third layers as shown in Table 4 below.

Table 4 In other words, the switch PSW is the print key (segment 71), and the switch cssw is the clear key (segment 1).
08) or the stop key (segment 257), switch CH8W is the display change key (segment 75B),
Switch SWO is the cassette selection key (segment 22)
Or the "0" key on the numeric keypad (segment 110), switch SWI is the exposure setting key (segment 89) or the "1" key on the numeric keypad (segment 111), switch BW2 is the "2" key on the numeric keypad (segment 112)
, switch SW, ? is the reduction key (segment yy) t or the "3" key on the numeric keypad (segment J13), switch SW4 is the exposure setting key (segment 88) or the "4" key on the numeric keypad (segment 114), switch S
W5 is the "5" key on the numeric keypad (segment 115), switch SW6 is the same size key (segment 78) or the "6" key on the numeric keypad (segment 116), switch SW
7 is the exposure mode switching key (segment 87) or the "7" key on the numeric keypad (segment 1J7), switch BW
8 is arranged to detect whether or not the numeric keypad "8" key (segment 118) is pressed, and switch SW9 is arranged to detect whether or not the expansion key (segment 79) or the numeric keypad "9" key (segment 119) is pressed. It is.

The content of the present invention will be explained in more detail with the above configuration. In this example, it is the first layer.

As a combination of lightable segments in the second and third layers, there are six patterns depending on the status of the copier and display switching, and among the lightable segments, the lights are lit according to the status. A segment and a segment to be turned off are selected to form a display figure.

That is, as shown in FIG.
A predetermined address of AM (Random Access Memory) (hereinafter, high register HR=1, low register LR=
,? In such a case, M[J, J](
2')), and each address has data for selecting lighting or non-lighting of the corresponding segment (1# for lighting, 1# for non-lighting). 0") is set according to the individual status of the segment's meaning (
The data 10'' is always set at the location indicated as 10', and for example, the location indicated as @l" 25 B corresponds to segment 158, but the data is always "l". (indicates that it is set)
, the data signal for selecting the 17th segment is ME
0,7]<3>.

M[0,7)(2), -M(0,6]<3>, -MC0
,0''F;
It is created by sequentially outputting the data at the address of R=2 from the 3rd bit of LR=7, but in addition to setting the lighting/non-lighting data, at the time of display, For example, when sending a data signal to the first layer, the output remains @0" at the timing when the data of LR-7 to 2 is supposed to be output, and only when the data of IIt=o,i is output. An address to be output as a data signal is selected depending on the situation, such as outputting data from a RAM.There are six turns for selection.

Below, Figures 13 to 2 are shown for the above six patterns.
This will be explained using Figure 4. In addition, FIGS. 13, 15, 17, 19, and 21.

In each of FIG. 23, (a) shows a segment that can be lit in the first layer (a segment corresponding to the selected address in the above explanation), and (b) shows a segment that can be lit in the second layer. , +c>The figure is the third
811C, each segment that can be lit is shown. Further, the Cω diagram is a display example for each nof turn.

Figure 13 is a diagram for the case of No., Turn 1 (six), and Turns (we will call them by numbers, respectively). This is the selected pattern (detailed conditions for selecting the pattern will be described later). In this lean 1 i,
Figure 13(m)(b) (As shown by cl, segments 72 to 76 in the first layer, segment 1 in the wJ2 layer)
20-122, segments 131-136 in 31st J
．． 158 are segments that can be lit. That is, when displaying, HR=
When data signals are output in order such as outputting data of 0, data of HR-=7 to the second layer, data of HR=2 to the third layer, etc., the data in the RAM in the shaded area in Figure 14 0'' is output at the timing of outputting .

Here, each switch of the transparent switch/mother panel 45 described above had multiple meanings, but as the display pattern is selected, the meaning is limited according to the display, so the microcomputer 41 is The meaning of the switch can be determined by the display and mother turn. Therefore, in the explanation of the arm turn below, I will also explain why each switch is judged as a key when the arm turn is selected.

When pattern 1 is selected, what key (meaning) each switch in the transparent switch panel 45 is determined to be is shown in Table 5 below. Note that - marks in the table are ignored. It is shown that.

Table 5 FIG. 15 is a diagram for the case of turn 2, which is, for example, the /IF turn selected during a copying operation. In this Tsuktan 2, in the first layer, as shown in Fig. 15-), 6.87 to 91,
In the second layer, segments 101-107.120-122
, in the third layer, segments 131 to 136.158 are lightable segments. That is, when outputting display data, 'O'' is output at the timing of outputting the data in the RAM shown in the shaded area in FIG.
Table 6 below shows what key each switch on the transparent switch panel 45 is determined to be.

Table 6 FIG. 17 shows the case of flat turn 3, which is a flat turn that is selected, for example, when setting the copying magnification. In this book Turf 3, Figure 17 fal fb
l fc), all segments in the first layer, segments 101 to 107, 120 to 1 in the second layer
22, in the third layer, segments 131 to Z J 6 , 1
5B are each segments that can be lit. That is, when outputting display data, the timing for outputting the RAM buttons in the shaded area in FIG.
It is designed to output . Table 7 below shows whether or not each switch of the transparent switch knob 45 is judged to be the same key when No or Turf 3 is selected.

Table 7 FIG. 19 is a diagram for Nof turn 4, which is a pattern selected when setting the number of copies, for example. In this tree 74, FIG. 19 (al (b) (
In the first layer, as shown in c), the segments 71,
/I, V ~ 86.9 θ, 9 no, all segments in the second layer, segments 131 to 136.158 in the third layer
are each segments that can be lit. That is, when outputting display data, the RAM in the shaded area in FIG.
O" is output at the timing of outputting the data. Also, when pattern 4 is selected, the key of each switch in the transparent switch channel 45 is determined as follows. Table 8 shows Table 8. Figure 21 is a diagram for the case of Lean 5), which is the Noreen selected when, for example, a paper jam occurs.In this Lean 5, Figure 21 (a) (b) (c
As shown in 3, all segments in the first layer are not lit, and in the second layer, segments 120 to 122 and the third
In the layer, segments 131 to 156 and 158 each serve as segments that can be lit. That is, when outputting display data, 'o#' is output at the timing when the data in the RAM shown in the shaded area in FIG. 22 is output. Table 9 below shows which key each switch of the transparent switch 45 and the transparent switch 45 is judged to be when ) or 75 is selected.

Table 9 Figure 23)? The diagram is for turn 6, which is a Noreen selected during a copying operation, for example. At this point and turn 6, all segments in the first layer are not lit, as shown in Fig. 23 (a) fb) Ta).
In the second layer, segment 120-122% 31st fi
Then, all the segments are segments that can be lit. In other words, when outputting display data, the second
oH is output at the timing when the data in the RAM shown in the shaded area in FIG. 4 is output. In addition, when No or Turn 6 is selected, the following table 10 shows what key each transparent switch No or Nell 45 is judged as.
Shown below.

Next, the flowchart shown in Fig. 25 and Fig. 13 (
Using the display examples of dJ, Fig. 15 (d), Fig. 17 (dJ, Fig. 19 (d), Fig. 21 (d), and Fig. 23 (di), the above six) j turns are The following describes the conditions under which each is selected.The flowchart in FIG.
This is a display routine that performs display, and for example, when it is necessary to change the display or turn at a certain period, the microcomputer 41 executes the program of this display routine. A turn is selected. In addition, in FIG. 25, for example, the process of "displaying arm turn 2" means outputting the RAM data in the above-mentioned pattern 2 to the first layer, second layer, and third layer in order. It shows.

First, to explain what happens when the power is turned on, if the collected toner storage section is full of toner, pattern 5 is selected because the copier operation itself must remove the collected toner before it can accept it. It is designed to constantly inform the user of the status of the copying machine. Furthermore, if there is no paper in the selected paper cassette, pattern 5 is selected because it is not possible to proceed to the copying operation in that state and to notify the user that there is no paper in the paper cassette. . Furthermore, when there is no toner in the toner container, it is possible to proceed to the copying operation, but pattern 5 is selected to make the user aware that there is no toner.
The display will be as shown in d), indicating that there is no toner. In this display example, the copying operation is already enabled, but when the power is actually turned on, the display indicates that the printer is warming up. If the conditions described in item 5 above are not unusual, either change the copying conditions (enlargement, reduction, exposure level, etc.) frequently, or set a large number of copies without making the above changes. When the display priority switch 34, which can be switched by the user under certain conditions such as when the user wants to print, is on, the display priority switch 34 focuses on setting the number of copies, and when it is off, the display priority switch 34 focuses on setting the copy magnification, etc. It is now selected.

If the copying machine cannot continue operating at any time other than when the power is turned on, such as when the collected toner reaches 8 full sheets or there is an abnormality that requires a serviceman call (a serviceman call), the above-mentioned collection when the power is turned on will be used. Pattern 5 is selected in the same way as when the toner is full. The display when the above abnormality does not occur can be broadly classified depending on whether copying is in progress or not, and whether there is no paper in the cassette or no toner, and when the display switch key is pressed in each case. The switchable display changes. First, when a copying operation is not in progress and no abnormality has occurred, the display of Tuktafu 3 or Pattern 4 is selected. To explain in more detail, when pattern 3 is selected, &'i pattern 3, etc., and when turf 4 is selected, guturn 4 is selected as is, and for example, when there is no cassette paper or no toner, If pattern 6 is selected during Nomochi turn 5 or copying operation and a noise occurs (described in detail later), the abnormality is canceled or the operation is terminated, the second display priority switch 340 mentioned above is activated. 3. Turn off and turn on M2R when power is turned on. - or select the display for Turn 4. Also,
For example, if there is no paper in the cassette or if Turn 1 or /4' Turn 2 is selected by pressing the display switching key during copying (details will be explained later), and the paper out is canceled or the operation ends. The display for mother turn 3 will be selected. If the display switching key is pressed in this case (when copying is not in progress and no abnormality has occurred), the pattern is switched from 47f turn 3 to pattern 4, and from 47f turn 4 to pattern 3. Display examples at this time are 1dl in Fig. 17 and 1dl in Fig. 19 (dl). conditions are displayed.

Next, we will explain what happens when there is an abnormality such as no cassette 111 or no toner during the copying operation. In this case, /4 turf 5 is generally selected, and when the display switching key is pressed, another /4 turn is selected. Furthermore, even if the switch is made to another turn, if the abnormality is canceled, the operating state changes (for example, a transition to a copying operation, etc.), or no operation is performed, a certain period of time (for example, 15 seconds), the switch can be switched back to Tsukturn 5. To explain in more detail,
We will explain separately the case without cassette paper and the case with heated toner. First, to explain the case where there is no paper in the cassette: ・When Yaturn 5 is selected, it is no! If 75 is selected and the cassette paper runs out at the end of the copying operation, or if the cassette paper runs out after no abnormality, turn 5 will be selected regardless of the previous operation. It turns out. In addition, when the display switching key is pressed in this case, the display is switched from ``Turn 5'' to ``Mother Turn 1'', and only the cassette selection key is accepted as shown in the display example shown in FIG. 13 (1d). In addition, if no operation is performed for 15 seconds on Tsutafu I,
Or, when the display switching key is pressed, No. 9 Turf 5 is displayed again.
is selected. Next, to explain the case without toner, as in the case without cassette paper, when pattern 5 is selected and pattern 5 is selected,
If the toner runs out at the end of the copying operation, turn 5 will be selected regardless of the previous turn 4. In addition, if the display switching key is pressed in this case, from i9 turn 5 to tsutafu 4 or pattern 3.
As described above, the display priority switch 34 is turned on and off.

Furthermore, when the display switching key is pressed, the transition from ttl'? to tl'? It is designed to switch to Turf 4, Pattern 4 or Lahanogu Turn 3, and then switch back to Pattern 5 15 seconds after the final operation.

Next, the display and turns during the copying operation will be explained.

In this case, when the print key is pressed and the copying operation is started, pattern 6 is selected, and as shown in FIG. If the display switching key is pressed in this case, the pattern is switched from turn 6 to pattern 2.

Pattern 2 shown in the display example of FIG. 15 (dl) shows only the exposure mode switching key and cassette selection key, which can be switched during the copying operation, and only these keys can be operated. , if the display switching key is pressed in pattern 2, or if there is no operation for 15 seconds after the last operation, the motherboard 76 is selected.

According to the display device configured as described above, the first display pattern graphically indicates the status of the copying machine, and the guide for setting copying conditions such as copying magnification, exposure amount, paper size, number of copies, etc. Normally, the above-mentioned second display/9 turns is displayed, and when the copying machine is in a normal state such as paper jam, out of toner, or out of paper, the above-mentioned first display pattern is displayed. Since the information is displayed, if the copying machine is no longer in a normal state, the user can be made sure and strongly aware of this fact.

Also, if the copying machine is not in a normal condition and the
Even if the display is switched using the display change key while the display pattern is being displayed, if the normal state or copying operation state does not return within a predetermined period of time, the first display will be automatically displayed again, making it easy to use. It is also possible to display an abnormal state when a person is replaced.

In the above embodiment, the application to an electronic copying machine was explained as an example, but of course, it is not limited to electronic copying machines, and can also be used to form an image corresponding to the image of a document on paper based on image forming conditions set in advance. The invention is applicable to any image forming apparatus (for example, a printing machine, a color copying machine, etc.).

〔Effect of the invention〕

As described in detail above, according to the present invention, the image forming apparatus
It is possible to provide a display device for an image forming apparatus that can make the user reliably and strongly aware of the fact that the image forming apparatus is no longer in a normal state.

[Brief explanation of drawings]

The drawings are for explaining one embodiment of the present invention, and FIG. 1 is an external perspective view of an electronic copying machine, FIG. 2 is a longitudinal sectional front view of the electronic copying machine, and FIG. 3 is an overall control circuit. A schematic block diagram, FIG. 4 is a configuration diagram of the liquid crystal driver, and FIGS. 5 and 6 are timing charts for explaining the operation of the liquid crystal display control section and voltage waveforms applied to the liquid crystal display motherboard. 7 is a diagram showing an example of the arrangement of segments in the first layer of a liquid crystal display/f-channel, FIG.
A diagram showing an example of arrangement of segments in the second layer of the mother flannel,
Figure 10 is a diagram showing an example of the arrangement of segments in the third layer of a liquid crystal display panel, Figure 11 is a diagram showing an example of the arrangement of switches in a transparent switch panel, and Figure 12 is a diagram showing an example of the arrangement of segments in the third layer of a liquid crystal display panel.
Figures 13 to 24 are diagrams for explaining the correspondence between M addresses and each segment, Figures 13 to 24 are diagrams for explaining each display pattern, and Figure 25 is a diagram showing how each display gloss turn is selected. FIG. 2... Original table, 4... Exposure lamp, 10... Photosensitive drum, 13.14... Paper feed cassette, P... Paper, 31... M production #32... Control Mother channel, 41... Microcomputer, 43... Status detection sensor, 4
4... Status detection switch, 51... Data selector, 52-54... Liquid crystal driver Z4S 55... Oscillator circuit, 57... Liquid crystal display nozzle, 21-91,1
01~122゜131~158...segment), CH
8W...Display changeover switch. Applicant's representative Patent attorney Takehiko Suzue Figure 7 Figure 8 Figure 9 Figure 7 Figure 13 (a) (b) Figure 13 (c) (d) Figure 15 (a) (b) Figure 15 (c) (d) Figure 17 (a) (b) Figure 17 (c) (d) Figure 19 (a) (b) Figure 19 (C) (d) Figure 21 (a) (b ) Figure 21 (C) (d) Figure 23 (a) (b) Figure 23 (c) (d)

Claims (1)

Scope of Claims: (1) In an image forming apparatus that forms an image corresponding to an image of a document on a sheet of paper based on image forming conditions set in advance, a first display/4' indicating the state of the image forming apparatus; a second display pattern showing guidance for setting the image forming conditions, a detection means for detecting that the image forming apparatus is no longer in a normal state, and normally displays the second display pattern. A display device for an image forming apparatus, comprising: a control means for displaying the first display or turn when the detection means detects that the detection means is no longer in a normal state. (2) A display device for an image forming apparatus IT according to claim 1, wherein the display of the first display pattern and the second display pattern are switched by operating a display switching means. (;() When the first display/gturn is displayed, even if the display is switched by the display switching means, the final operation for the image forming apparatus will not return to normal or normal state within a predetermined period of time. The display device of the image forming apparatus according to claim 2, characterized in that the display device displays the first display/gutter again when the image forming apparatus is not in the normal state. The display device of the image forming apparatus according to claim 1, wherein the display device of the image forming apparatus according to claim 1 is caused by an abnormality other than a paper transport abnormality such as a paper jam or a failure of the image forming apparatus, which stops the function of the apparatus itself. A display device for an image forming apparatus according to claim 1, characterized in that the two display patterns are constituted by a plurality of liquid crystal display elements. (6) The image forming condition is an image forming magnification. , the number of image formations, paper size, image formation density, etc.
Display bag fi for the image forming apparatus described in Section 1.