JPS59105656A - Image forming device - Google Patents

Abstract

PURPOSE:To make an operating part small in size and easy to operate by providing a control means which performs copying of the preset number of sheets when image forming is started during displaying of the size of recording paper. CONSTITUTION:When the number of copying sheet is set at 7 by a numeric key 80, ''07'' is displayed on a display device 87 by a control part Q1. When a copying operation is started as a copying start key 82 is pushed after setting of the number of copying sheets, the display of the set number of sheets on the device 87 is subtracted at every copying by the control device Q1 and is changed to the previous display of the paper size upon lapse of a specified time after the copying of the set number of sheet ends. The preset number of sheets, that is, 1 is set at the set number of sheets and displayed on the device 87 when an operation key except the key 80 and cassette selection keys 85 and 87 are pushed in the stage of displaying the paper size. If the operation key pushed in this stage is the key 82, ''1'' is displayed on the device 87 and the copying operation for one sheet is accomplished in said state.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an image forming apparatus such as an image forming apparatus or a facsimile machine, and particularly relates to an image forming apparatus such as a plurality of image forming apparatuses or facsimile apparatuses, and particularly a method for displaying a set number of sheets and a recording layer (size) using the same display. This is what I did.

Prior Art Insertion 1 In recent image forming apparatuses, such as copying machines, -=
For example, by selecting a cassette for storing recording paper (hereinafter referred to as transfer paper), copies of various sizes can be obtained. Also, is there a copying machine that has two cassette mounting parts, 11Z and lower? L is also available, and in this case, the upper and lower cassette mounting sections can each accommodate cassettes containing transfer sheets of various sizes.

In conventional image forming apparatuses having a single cassette device section as described above, the process is usually performed by rotating either the upper or r cassettes.
The size of the paper stored in the selected cassette is displayed. In the case of a conventional image forming apparatus 6 having only one cassette mounting section, the paper chair is generally not turned over.

However, in the case of a conventional device that has two cassette parts, one for each cassette part, and one for each cassette part.
A table that displays transfer paper sizes for the number of Nokoni paper sizes))
Since the scale requires a device, it is not only expensive to manufacture, but also complicated and difficult to operate for the operator (user) because the display device is often defective. Furthermore, in the case of a conventional device having only one cassette mounting section, the size of the transfer paper in the mounted cassette cannot be determined unless the cassette is actually opened, which often results in copy errors. In order to solve this problem, it is possible to simplify the display by using the same display to display the number of copies and the transfer paper size, but in that case, when displaying the transfer paper size, There is a drawback in that even if the operator wants to make one copy, he or she must set the number of copies.

Purpose of the Invention In view of the above-mentioned points, the present invention provides an image forming apparatus that selectively displays both the set number of sheets and the recording paper size using the same display, and provides an image forming apparatus that performs image formation when displaying the recording paper size. An object of the present invention is to provide an image forming apparatus & which performs a predetermined number of image forming operations when started.

Note that the image forming operation for the predetermined number of sheets may specifically be a single copy of one sheet.

'ni (! Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an example of the internal configuration of the image forming apparatus of the present invention, in which a light-enclosing totem 1 rotating in the direction of the arrow a in the figure has a conductive layer, a CDS photoconductive layer, and an insulating layer on the surface thereof. A photoreceptor is formed. First, the original document 1 to be copied is placed on the document table crow 3-, and the document illumination lamp 5 illuminates the document.
The mirrors 78 and 9 are moved to the ()'L positions of 7' and 8', respectively, and the illumination lamp 5 is also moved to the 5' position. do.

The optical image of the document scanned in this way is transferred to the lens 11. ! :
Via the optical system of the E-chie 13 and the mirror 17, the secondary beam for simultaneous charge removal with the SEI light is formed on the surface of the photoconductor 1t7) through the heavy equipment 18, forming a latent image. do.

After the surface of the photosensitive drum 1 is cleaned by a fifth plate cleaner 31, the influence of the previous latent image is removed by the front It-light lamp 33 and the front static eliminator 35. Next, the surface of the photoreceptor of the drum 1 is uniformly charged by a negative charger 37 to have a uniform potential. This charged photoreceptor surface is charged to a secondary charger 18 together with the optical image of the original as described in 1-.
Then, the entire surface is uniformly exposed using the entire surface exposure lamp 39 to form a high contrast last electrostatic latent image on 1 m of the surface of the photoreceptor.

Next, a developer (toner) is supplied by the developing device 41 to develop the latent image. At the same time, transfer the dirty transfer paper 43 or 51 to the cassette 45 or 47 to the feed roller 5.
Transcribed by 3 or 54! ;Send to 55. Transfer section 5
5, first, the gripper 7 grips the leading edge of the transfer paper 48 (or 51).

The rolling paper 48 (or 51) held in this way
) from the back side of the photosensitive drum 1 by emitting a corona by a transfer corona emitting device 5 : ) to transfer the developed image on the surface of the photoreceptor of the photosensitive drum 1 to the transfer paper 49 (or 51 ). When the transfer is completed, the static eliminator 61 removes the static electricity, and then the transfer paper 48 (or 51) is immediately transferred using the separating claw 63.
The image is separated from the ' section 55 and sent to a heat fixing device 67 by a conveyor belt 65 for image fixing.

In the heat fixing device 67, the image is fixed by holding the transfer paper 48 (or 51) between a fixing roller 69 heated by a fixing heater 88 and a pressure roller 70 disposed opposite to the fixing roller 69. , transfer the transfer paper to the JJI output roller 71
The liquid is discharged onto the tray 72 by the following steps. Turn',! ! : After cleaning the toner remaining on the surface of the photosensitive drum 1 with the plate cleaner 31, the photosensitive drum 1 is prepared for the first copying cycle.

Figure 2 shows an example of the configuration and layout of the operation display section of the device shown in Figure 1, where 80 is a numeric key used to set the number of copies, and 81 is a numeric key used to set the number of copies. 80
Cancel the value set by
82 is a copy star key used to start the copying operation; 83 is a 'l'i!' key used to execute another copy when the set number of copies has been completed using the numeric key 80; Login key, 84 is number key 8
This is a stop key used to stop the copying operation during continuous copying of the set number of sheets set at 0.

85 and 86 are Kayan (selection keys, key 85
When is pressed, the upper cassette 45 (see FIG. 1) is selected, and when the key 8θ is pressed, the lower cassette 47 (see FIG. 1) is selected. At this time, the size of the paper in the cassette is displayed on the dual-purpose display 87.

This display 87 is a 7-segment LED (light-emitting diode) that serves both to display the number of sheets set using the numeric key 80 and to display the size of the transfer paper, as will be described later.
Consisting of The detailed operation of the display 87 will be described later.

Reference numerals 88 to 81 are warning indicators for displaying warnings from the main control unit, all of which are displayed as pictograms. 88 is a toner replenishment indicator, which indicates the developer (
Lights up when the amount of toner (toner) is below the specified level. Reference numeral 88 is a jam indicator, which lights up when the transfer paper is jammed. Reference numeral 90 is a paper out indicator, which lights up when there is no transfer paper in the selected kayak.

191 is the way I display, which remains lit until the temperature of the fixing heater 68 (see Figure 1) is lower than the specified value when the power switch (Chamano\) is turned on, and when the temperature is higher than the specified value. It becomes extinguished when the wait-up process is completed. Further, 92 is a slide lever used to set the copying degree, and it is at the 1/51 position or the standard density.

31; 4 shows a schematic configuration example of the control txt+ of the apparatus shown in FIG. 1, and only the interface of the operation display unit according to the present invention is shown in detail. Here, control i&ll l'jl
+Q] consists of a controller I/roller made up of a general one-chip microcomputer (hereinafter referred to as a microcomputer), a central processing unit C1゜CPII, a program memory ROM that stores each necessary control program,
Data memory RAM and l10 (person output) port 1-controller-1+IOc 'ftwoj, person output port A
It is equipped with ~■.

Port 1-A is a manual port for the copy scanning unit, and it has a copy number set key 8o and a clear key 81 shown in FIG.
, copyster I key 82, interrupt key 83, stop key 84, and cassette selection keys 85 and 86. Port B is the output port used to dynamically scan the key force.

Port 1-H is used to input copy control signals such as output pulses of an optical system position detection sensor (not shown) necessary for copy control and output pulses of a tram crank (not shown) that detects the rotation angle of the drum 1. Ports C and D are input ports, and ports C and D are connected to a main motor (not shown), a high pressure controller (not shown),
This is an output port for driving and controlling a cracker (not shown), the document illumination lamp 5 shown in FIG. 1, and the like.

Ports 1-F and G are the operation display section shown in FIG. 2, including a set number/paper size indicator 87 (hereinafter referred to as the "sheet number/paper size indicator") 87, a toner replenishment indicator 88, and a jam indicator 89. ．． This is an output port that is used to light up the top display 80 and the weight display 81, and dynamic lighting of those displays 87 to 81 is performed using the output capo (E). 028' and Q3 are dry/to used for the lighting operation.

The above-mentioned sheet count paper size display 87 consists of a pair of left and right units, each of which consists of 7 segments up to i and a''''q, respectively, and ED, and when not in multi'Jf operation, Selection key 85 or 86
(Refer to Figure 2) The paper size is displayed within 45 or 47, but when the number of copies is set by pressing the key 80 (Refer to 2nd iA), Display the number of sheets. At the time of °C, it is possible to display ijf because there are up to 98 cents in the world.

An example of the table/I\table 87 is shown in Figure 4 CA) and (
Shown in B). For example, when A3-sized transfer paper is stored in the lower cassette 47 (see figure 'A') and the lower cassette 47 is selected using the cassette selection key 86, the cassette 47 shown in FIG. Table 21, vessel 87'
A3 "°" and the output port 2, that is, the output port E-
When 3 is selected by the Quinamink lighting, each terminal a, b, c, f, e, and g of output ports F and G is turned 1]N (closed) by the microcomputer (control unit) Ql, and the display 87 1. Put °A″ and front blade on the left unit 2 of 1,
Next, connect each terminal a, b, C, d, and g to the microcomputer Q1 in the same way as the output capo-h E-2.
By pressing 1]N, the right unit of the display 87 displays "3", which causes the display 87 to display "A3" as shown.Using the numerical keys 80 (see Figure 2) The number of copies is “?” When "" is entered, the microcomputer e1 displays "Ql" on the display 87 as shown in FIG.

Next, when the copy start key 82 (see No. 2) is pressed to start the copying operation, the number of sheets displayed on the display 87 is decremented each time a copy is made, and the set number of sheets is 'When a certain period of time has passed after the end, the display changes again to the normal nail size as shown in Figure 4 (8).When the paper size is displayed, any operation other than the numeric key 80 and the cart selection keys 85 and 86 When the key is pressed, a predetermined number of sheets, that is, ゛l°′ in this example, is pressed.
It is set as the number of copies and displayed on the display 87. The operation key pressed at this time is Copy Star (・Mo8
If it is 2, the display 87 will show °l".

is displayed and the copy operation for one sheet is performed.

- As mentioned above when displaying 1 paper size (this is
Even if an operation key other than the +J< keys 85 and 86 is pressed to display the number of cents, if the copy start key 82 is not pressed within -i time, the paper size is displayed again.

The boat 1 is a manual boat used to detect the paper sizes of the rolling papers 49 and 51 stored in the case shafts 45 and 47. In this example, the 11-stage cassette stand (
44Φ of A3 size, A4 size, 84 size and 85 size are used for both A3 size, A4 size, 84 size and 85 size.
It is assumed that four types of cassettes containing transfer paper of similar paper sizes are available for the apparatus DT. This 1-
1ij cassette f'31, 4. > A pair of micro switchers MS4 and S2 or MS1' and MS2' are provided for each stage, and the cassettes 45 and 47 can be connected to the camera, instrument stand, or kayak mounting section). By inserting into that predetermined switch MSI, MS2, MS1' and S2
' is activated depending on the type of foot lift (actuator 1-
), and detects the paper size of the roll paper stored in the cassettes 45 and 47 based on the combination of ON and OFF states of the switches. An example of the relationship between the combination of switch states and the paper size at that time. are shown in the table below.

When cassette selection key 85 or 8G in Figure 2 is pressed, switch MSI (or MSI') is pressed.
By detecting the open/closed state of MS2 (or MS2') by the control unit Q1 through port 1, it is possible to detect the paper signature on the transfer paper stored in the cassette.

Next, the operation shown in FIG. 3 will be further explained with reference to the flowchart shown in FIG.

First, when the power is turned on, the upper cassette 45 stored in the F-stage kayak stand at step STI (see Figure 2)
The paper size is detected by tracing the manual port 1 and the open/closed states of switches MSI and MS2, and the paper size is detected by the display section 87 (second
Table 71 shows the paper size (see figure). Next, in step ST2, the key scanning operation is stopped until the scanning keys 80 to 86 are operated manually. When the key power goes south, it advances to Stella 7'ST3, and judges whether the pressed key is the lower cassette selection key 85 or 86, and if the key is 85 or 8e, , step ST4
Then, the paper size of the selected kayak I-45 or 47 is displayed on the display section 87, and the process proceeds to step ST2.

The procedure from the next step ST5 to step 5TIO is a processing routine when the operation keys 80 to 84 other than the cassette selection key are pressed. There are three cases in which a key other than the cassette selection key may be pressed.

(1) Number 17i key 80 or clear key” (Fit
2. Reference + figure number, 1. ) is pressed.

Step, BU S'r5 te size 1 Ill [S'te release l/j key 8
If it is 0, the pressed number 111 (increases or decreases on the display 87 in step ST6) and proceeds to step 5TII.
Then, write j\' to the table 87, and go to step 5TII.

111) When the copy start key 82 (see FIG. 2) is pressed.

Already, using the numeric key 80, the number of copies has been selected.
・Is it worth seven pieces? If the display 87 is in the paper size list, make one copy (steps ST9 and υ5T10).
.

Ci i i ) ', 1 ull included 10-83 or strike, when the key 84 (see Figure 2) is pressed.

Step ST? Judging by this, the display 87 shows the paper size chart 71.
(In step ST8, the display 87 shows °°
1"' is displayed in cents, and if the paper size is not displayed, the key input is ignored and the process jumps to step 5TII.

In other words, enter ST5 and press the number key] White key 80
Alternatively, if it is determined that the clear key 81 has been pressed, the pressed key is displayed numerically in step ST8 and the process proceeds to step 5T11. In step ST5, if it is determined that a key other than numeric key 80 has been pressed,
In step ST7, it is determined whether or not the paper size of table 21 and 37 is being displayed.
·do. In the next step ST9, it is determined whether the pressed key is the copy start key 82, and if it is determined that the copy start key 82 has been pressed, in step 5TIO, copies are made for the number of cents > 1\ sheets. Then, the process proceeds to step 3TII, and if it is determined that the copy start key 82 has not been pressed, the process skips to step ST]1.\\.

The procedure from step 5TII to step 5T14 is as follows:
After the end of copying j' or the number of projected sheets rjI7 (1) J
η or 1 set according to the procedure described in item 11) is disabled for a certain period of time, and if there is no key human power, the display 87
This is a processing routine that returns the table screen to size display. That is, (a) If the copying operation or key manual operation is not performed within a certain period of time (for example, 5 minutes) after the end of the copying operation, the cassette 45 selected as obsolete in step 5T14 is
Or, increase or decrease the paper size of the transfer ID stored in 47 on the display 87, and return to step ST2 + and Z.

t', b) 4: After setting the number of copies on the display 87 according to the procedure described in item (i) or item (11) of・Even if key 82 is not pressed, step 5T
14, the paper size of the paper stored in the Kaya l-457 or 47 selected by N1 is shown.>
J＼Display on container 87.

A common routine for the procedures in the above-mentioned sections (a) and (b) is Stenobu 5T11 to Stenobu 5T14. That is,
In step 5T11, the control unit Q1 is set to a timer (not shown).
In step I2 and step 5T13, it is determined whether key manpower is available within a certain period of time. If there is a key input within that time, the process returns to step ST3 via step 5T13.
If the key is not pressed manually, the process advances to step ST+4, displays the paper size of the transfer paper stored in the selected tray 71-45 or 47, returns to step ST2, and repeats the above-mentioned steps.

Effects As explained above, according to the present invention, the set sheet size display and the recording paper size display are both displayed using the same display device, and one of them is displayed at the same time during the image forming stage. As a result, it is possible to realize an image forming apparatus such as a copying apparatus, which has a small operating section, is easy to operate, and can be provided at a low cost.

Note that the display 87 may of course be made of a tot matrix display element or the like.

[Brief explanation of the drawing]

FIG. 1 shows the internal configuration 1' of the image forming apparatus of the present invention.
＼Stop n'+i Figure, Figure 2 is 1 [Operation of device A 11 =
A plan view showing an example of a disaster with a surface force of \1°1B, and a schematic configuration example of the control section 4 and 11 of the device 6 in Figure 11 from 3L41. 4 ml (A) and (B) are enlarged 1 showing an example of the number of sheets of paper size table 2 in Figure 2.
：Ill 1f(li'X
1! Flowchart 1 shows the operation. 1...J/N light tram, 3...Genkai J stand crow, 51... Original illumination lamp, 7.8... Scanning mirror. 11... Lens. 13.17...Mirror, 19...Secondary charger, 31...Freight cleaner, :3:3...Pre-exposure lamp, 35...Moe static eliminator, :37...- Obi' turtle device, 3@...Lamp for full-scale exposure, 41...Developer, 45.47...Cassette. t9.51...Transfer paper (recording paper), 53.54...Delivery roller, 55...Transfer ζ°11 also, 57...Relymph, 5t...Transfer corona discharger, 61... Separation static eliminator. 63... Separation claw, 65... Conveyor belt, 67... Heating fixing device, 68... Fixing heater for heating, 68... L10-ra, 70... Pressure roller, 71... Side non-extrusion roller, 72... Tray, 80... Number direct key, 81... Clear key, 82... Copy start key, 83... Interrupt key, :34... - Snap key, 85.88... Kayan i selection key, 87... Set number of sheets φ paper size display (number of sheets paper size display), 88... Toner replenishment indicator, 83. ...Jam indicator, 80...Clawless indicator, 91...Way I display, 82...Slide lever.Ql...Control unit (microcomputer), Q2,
Q3...Driver, i;p'lJ...Central processing unit, i;! OH...Program memory, RAM...Data memory. Iol...I10 boat controller A...ne(
G'j 4'3 Manual key input capo-I, B...
Output port for key person card 1 dynamic scan, 1:, D...Output port for outputting copy control signal, E...
・Output port for display unit lighting, F, G...Output port for display unit lighting. H... Copy control detection input port for manual input, ■... Input port for paper size detection, MSI, MS2... Upper cassette side micro switch MS1', MS2'... 1st/1st stage Micro switch on cassette side.

Claims (1)

[Claims] 1) In the table of set number of sheets, the display of j\ and the recording paper size are the same.
a display means using a display device, a table showing the number of printed sheets, a first Hikone means for selecting il\, and a second lower selection stage for selecting the display of the recording paper size; An image forming apparatus characterized in that the image forming apparatus further comprises a control means for instructing a predetermined number of copies to be made if image formation is started while the recording paper size is being displayed. 2) 4JF +I'! +'rTi range of search In the apparatus described in item 1, the image forming apparatus is characterized in that 4) the number of sheets is 1 instead of 12. 3) The image forming apparatus 1σ according to claim 1, wherein the display device includes a plurality of 7-segment front blades. 4) In the device according to claim 1, 1JF
1. An image forming apparatus characterized in that the display device comprises a plurality of dot matrix display devices.