JPS6180169A - Image forming device - Google Patents

Abstract

PURPOSE:To improve operating efficiency by setting the value of a number of sheets according to the operation of an input key. CONSTITUTION:This image forming device is provided with a nonvolatile memory 34 for storing the value of the prescribed number of sheets, a control means 30 for setting the storage content of the memory 34 and an input means 35 in order to utter a signal when the value of the prescribed number of sheets is attained. The means 30 stores successively the numerical values in descending order into the memory 34 when a copy start button is started after a set mode is established by two numeric keys and power source switch and after the numerical values are inputted by the numeric keys while the input means 35 are under prescribed input conditions. The number of sheets of a counter is thus easily set.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to image forming 12F, and particularly relates to an image forming apparatus in which the number of sheets required for maintenance can be arbitrarily changed.

[Prior art]

-C. In image forming devices, especially electrophotographic copying devices, as the number of copies increases, various components wear out or deteriorate, so in order to ensure smooth copying operations at all times, it is necessary to When the predetermined number of sheets is reached, the fixed 1
It is necessary to perform an inspection and replace any component parts that may be worn out or deteriorated by the time of the next periodic inspection. When the limit is reached, a message is displayed on the display to notify the operator.

However, when setting this predetermined number of sheets, 'A
It is necessary to set a counter built into the 'll, and this work has the drawback of being a very troublesome work.

[Purpose of the invention]

The present invention eliminates the drawbacks of the conventional image forming apparatus as described above, and provides an image forming apparatus that allows the number of sheets on the counter to be easily set by simply operating the operation section of the image forming apparatus, thereby improving work efficiency. The purpose is to provide a forming device.

C Structure of the Invention] The present invention provides an image forming apparatus capable of copying a predetermined document, which includes a non-volatile memory for storing the predetermined number of copies, and a non-volatile memory for generating a signal when the number of copies reaches the predetermined number of copies. It comprises a control means for setting the storage contents of the non-volatile memory, and an input means, and the control means uses two numeric keys and a power switch to set the setting mode, and when the input means is under a predetermined input condition, the control means sets the setting mode using the numeric keys. By pressing the copy start button after inputting numerical values, the numerical values are stored in the non-volatile memory in order starting from the highest value.

[Embodiments of the invention] Embodiments of the invention shown in the drawings will be described below.

FIG. 1 shows a schematic layout of an electrophotographic copying apparatus, which is a type of image forming apparatus. is provided with a platen cover 3 whose top surface can be opened and covered.

At the top of the interior of the main body 1, there is an exposure lamp buoy that irradiates light onto the lower surface of the document glass table 2, and a light beam reflected from the document irradiated by the n-light lamp 4 is transmitted to the exposure section 6 via a group of reflectors 5. , and a lens I that is movable in the horizontal direction (in the direction of the arrow)
! In addition, a drum-shaped photoreceptor drum 8 serving as an image carrier is rotatably provided in the center, and a charging device 9 opposite to the photoreceptor drum 8 is provided near the top of the photoreceptor drum 8. In front of the charging device 9 in the rotational direction of the photosensitive drum 8 are an exposure section 6, an image device 10, a transfer device 11, a 11dl device 12, and a static eliminator 1.
3 and a cleaning device ata are respectively disposed close to and facing the photoreceptor drum 8.

1111 At the lower internal position side of the main body 1, two upper and lower cassette cases 15.16 are removably provided, and when each cassette case 15.16 is inserted, one of the paper bundles stacked therein is removed. Paper feed rollers 17 that come into contact with the upper surface of the uppermost sheet are respectively provided, and between the vicinity of the paper feed rollers 17 and the vicinity of the transfer device 7111, there is a A paper feed path 18 for generally transporting paper to the transfer device 11 is provided.

A portion of the guide plate constituting the paper feed path 18 is cut out, and a pair of upper and lower registration rollers 19 are disposed in this cutout portion.

A fixing device 20 is provided on the other side of the inner lower part of the main body 1, and a paper conveyance path 21 is provided between the fixing device 20 and a separating device [2] provided near the photosensitive drum 8. A paper discharge section 22 is provided on the opposite side of the fixing device from the conveyance path 21, and a paper discharge tray 23 is provided outside of the paper discharge section 22.

The control system of the above-mentioned electrophotographic copying apparatus is as shown in FIG. 2, where 30 is a control board (CB) consisting of 10 control units (micro combiator), an input circuit, and an output circuit, 31 is automatic paper i! 32 is a PS sensor board that outputs an analog voltage proportional to white to the control board; and 32 is an EE sensor for setting the density of the copied image. Board, 33 is enlarged, 1 (MS for performing d small)
Sensor 134 consists of non-volatile memory and has a power of 1ff.
1 (memory for storing PM count failure, PM setting number, color count number ~ PS pJ4p value, bias shift value, etc.) 1 (Saka, 35 controls the input of each setting key via the matrix circuit) An display unit (OB) that outputs to the board 30 and lights up the display element according to the signal from the control board 30;
37 is an AC) Leiper method 1 reaction, 38 is an AC load, 39 is a DC load, 40 is an optical motor, and 41 is the above-mentioned control? Optical motor control that turns ON/OFF, rotation direction, and rotation angle of the optical drive system 1tNI In based on signals from the fl board 30.
JW (M2/CB), 42 is a DC power supply unit.

When obtaining a copied image using the electrophotographic copying apparatus configured as described above, first, the original is placed on the original glass table 2, and then covered with the platen cover 3, and the operation panel 50 is closed. Perform operations.

This operation panel 50 is constructed as shown in FIG. 3, and when the number of copies is translated using the numeric keypad 51, the selected number of copies is displayed on the number of copies display LED 52.

Further, 53 is an MR button for switching between reduction and enlargement modes, and in the initial state when the power is turned on, 21
In addition to setting it to the same magnification, pressing - times sets the upper part, that is, the enlargement mode that enlarges A4 size to B4 size, and pressing it again sets it to AMS mode, that is,
The document will be in a mode that will be sized to correspond to the paper in the selected paper source, which will be described later.
This is to enter the reduction mode of the first step, and then press it again to enter the second reduction mode, and press it again to set the initial magnification to the same magnification, and when each mode is set, it corresponds to it. The LED 55 lights up, and in the AMS mode, the "auto" 54 lights up.

Therefore, by simply pressing the MR button 53, the image can be enlarged.
The desired magnification can be selected by switching between auto, first stage reduction, second stage reduction, and equal magnification. □ Also, 56 is a zoom button, and by pressing the enlarge button or reduce button of this zoom button 56, the magnification can be changed in the range of 0.65 times to 1.55 times in steps of 0.01 times. The contents, that is, the magnification, are displayed on the magnification display LED 57 when the MR button 53 in the enlargement/reduction mode is pressed and when the zoom button 56 is pressed.

Reference numeral 60 denotes a paper feed cassette selection section, and this paper feed cassette, G selection section 60 has a paper size selection button 61, and each time this G size selection button 61 is pressed, the upper cassette, G selection mode, and lower cassette are selected. The cassette selection mode and APS mode (automatic paper selection mode) are sequentially switched.

Note that the APS mode refers to 3!2 images on the original glass table 2.
This mode automatically reads the size of the placed original and selects the copy paper that matches the original size after copying. Therefore, it is possible to select copy paper that matches the original size after copying. In this case, even if the originals are of the same size, the selected copy paper is different.

When one of the upper row selection mode, lower row selection mode, or APS mode is selected, the LED 62 corresponding to that mode lights up. The size LED 63 displays the selected size. 65 is a lπ degree J selection unit for changing the bias of the developing device tO to change the 4 degrees of the copied image. Since the manual mode is selected when it is loaded, press either one of the concentration selection buttons 66 to select 7.
It is possible to select the concentration in stages, the LED 67 corresponding to the selected concentration stage lights up, and by pressing the EE button (automatic concentration level button) 68, the mode is switched from manual mode to automatic 1H degree J1 scale mode. The LED power of E Pokun 68 (lights up).

In addition, 59 is a copy start button, and 70 is a status display section, and this status display section 70 indicates each operation such as power supply, jam, paper replenishment, toner replenishment, periodic inspection, and thick paper fixing.
This is displayed by blinking D71.

When operating the operation unit 50 configured as described above to perform copying work, first set each +51 copying condition. First, operate the numeric keypad 51 and press the required number of numeric keys. , the set number of sheets is displayed on the number of sheets LED5
2, and the magnification l! The magnification of the copy image relative to the original is determined by operating the selection section 58, but as mentioned above, in the initial state when the power is turned on, the same size is selected, so the copy image at the same size is selected. M if you want to get it
There is no need to operate the R button 53. For example, if you want to select "Auto", press the MR button 53 twice.
After moving to the enlargement mode, the mode becomes AMSM-mode, and the automatic IED 54 lights up to notify that this mode has been selected.

Note that the AMSM-mode is a change in image size that matches the selected copy paper size by automatically reading the size of the original placed on the original glass table 2. This is a mode for selecting a magnification, and when there is no copy paper corresponding to the selected size in the cassette case, the LED for the corresponding copy paper size is lit.

The flowchart when selecting the magnification is shown in FIG. 4. In the initial state, the equal magnification flag is selected, so by pressing the MR box 53, it is determined whether the equal magnification flag is selected. Since the 1x flag is selected, the selection is switched from the 1x flag to the enlarged flag and the enlarged copy mode routine is started. Therefore, if you press the MR button 53 again, the AMSM-mode will be displayed. The flag is selected and the AMSM-D routine is started.

Therefore, other modes, ie, first-stage reduction mode,
The second reduction mode is also selected in a similar manner and the respective routines are started.

When the AMSM-mode is selected, a copy image is obtained according to the flowchart shown in FIG. Since it is selected, when AMSM-mode is selected, the size of the original is detected, the reduction or enlargement magnification, that is, the variable magnification is automatically set, and when the copy start button 59 is pressed, it matches the size of the paper. did? Both M-photo images can be obtained.

In addition, in order for this AMSM-mode to operate, A
The condition is that the PS mode (8-person selection I-shaku mode for own 9JJ) is not selected.

Furthermore, when a mode other than AMSM mode is selected in the magnification selection section 58, all paper sizes including APS mode can be selected in the paper cassette selection section 60, and the APS mode is selected when the power is turned on. At the same time, pressing the paper size selection button 61 switches from the APS mode to the upper cassette i1 stream, and further pressing the G size selection button selects the lower cassette from the upper cassette. Corresponding L
At the same time that ED62 is lit, paper size L and D63 are also lit.

A flowchart for selecting this paper feed cassette is shown in FIG. 7. When the power is turned on and the G size selection button 61 is pressed, the APS flag is selected, so the upper cassette is selected and the paper feeding routine for the upper cassette is started. started,
Similarly, when pressed twice, the lower cassette paper feeding routine is started.

A flowchart when the APS mode is selected is shown in FIG. 6, and the ΔPS mode is a mode that automatically selects the paper size based on the original and the magnification selected by the magnification selection section 58, If the paper size corresponding to the selected paper size is not loaded in either the upper cassette or the lower cassette, the corresponding paper size L
The ED flashes to notify the operator of the required paper size.

In addition, the numeric keypad 51 has a double function, and if you press each key individually, the numerical value written on the top of each key is input as the set number of copies, and that numerical value is displayed on the number of copies display LED 52. If you press one of the keys whose functions are written on the side while pressing the P key, the contents written on the bottom of each key will be performed.

In other words, pressing the "■)" key and the "9" key will fix the cardboard. This is used when setting the fusing temperature for thick paper, and as the fusing temperature increases, the display will show the fusing temperature for thick paper. The LED lights up.

Also, by pressing the rPJ key and the "8" key, you can use it to copy other originals during continuous copying.
Interrupt copy is set when the copy at the time of pressing is finished, and when the rPJ key and the "7" key are pressed, it becomes image software, which is used when forming the white margin, and the leading edge of the image is shifted backward by about tOW. do.

Also, when the rPJ key and the r5J key are pressed, the PM counter number, that is, the number for performing periodic inspection, lights up and is displayed on the number display LED 52, and the setting value can be changed in the direction described later. .

Furthermore, it is possible to perform various functions with one step like pressing the rPJ key, and the operation is the same as the 8th key.
As shown in the flowchart of the figure.

Setting and changing the value of the PM counter is performed as follows.

First, turn on the power while holding down the "2" and "5" keys to enter PM cycle (maintenance cycle) setting mode, and the magnification display LED 57 shows rPJ rOJ.
Since rOJ is displayed, pressing the zoom button 56 changes the display to rPJ r2J r7J.

At this time, if the PM counter has already been set to a value of 32,000, the LED 52 for displaying the number of sheets
Since r3J roj is displayed, you can see that the PM cycle's unit in thousands is set to "3", and if you enter "2" using the numeric keypad 51, the L for number display will be displayed.
r3J r2J is displayed on the ED 52, and then when the copy start button 59 is pressed, the display changes to "2" and "2", which lets you know that setting the 10,000 and 3 positions as "2" has been completed. be able to.

Then, when the magnification display LED 57 is set to rPj r2J r8J using the zoom button 56, it becomes possible to input units of thousands, and the number display LED 52
r2J rOJ is displayed, so as above,
For example, if you press "5" on the numeric keypad, the display will be r2J
T'5J, and when you press the copy start button 59, the display changes to "5" and "5", meaning that the PM cycle previously set to 32,000 has been changed to 25,000, and these operations are as shown in Figure 9. The process will look like the flowchart shown below.

Therefore, when the number of copies reached between 24,000 and 24,999 by performing normal copying operations from the time this operation is completed, the periodic inspection display on the display unit 70 lights up, and
When the value exceeds 25,000, the display blinks, thereby informing the necessity of periodic inspection, and this flowchart is shown in FIG. 1O.

Also, if you want to change the settings of the total number of copies counter, press r2J r5J on the numeric keypad in the same way as above.
After turning on the power while holding down , use the zoom button 56 to set the magnification display LED 57 to rPJ r3J.
If you set it to r2J, you can change the value of car No. 10 in the same way as above, and with "P" r3J
J r4J in thousands, rPJ r3J r5J in hundreds, rPjr3J r6J in thousands, and rPj
It is possible to set the − level with r3J “7”.

Further, the total copy value of the PM counter can be reset with a single operation.

In other words, if you turn on the power while holding down [4Jrlr] on the numeric keypad 51, the counter reset mode will be activated, and the display will be changed to rP using the zoom button 56.
When the copy start button 59 is pressed after setting r9J rOj, the counter value becomes O, and the flowchart in this case is shown in FIG.

By changing the value of the total copy counter in this way, if the inspection is performed before the regular regular inspection, the periodic inspection will be displayed when the number of copies from that point reaches the set value of the PM counter. is carried out, so that the usage status is always maintained normally.

〔Effect of the invention〕

By having the above-described structure, this invention has excellent effects such as significantly improving work efficiency because the number of sheets can be set simply by pressing the operation unit provided on the surface. It is something.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a general schematic diagram of an electrophotographic copying apparatus, FIG. 2 is a block diagram showing the entire control system of the one shown in FIG. 1, and FIG. 3 is a diagram showing a display section. Figure 4 is a flowchart showing magnification selection, Figure 5 is a flowchart in AMS mode, Figure 6 is a flowchart in APS mode, Figure 7 is a flowchart showing paper feed cassette selection, Figure 8 is a double fan on the numeric keypad. Flowchart showing the Kunyong function, Figure 9 is a flowchart when storing the setting contents of the PM counter in the memory board, Figure 1O is a flowchart showing a comparison between the setting value of the PM counter and the number of copies, and Figure 11 is l ) is a flowchart that does not show the reset of the M counter. l...Main body 2...Original glass stand 3...Platen cover 4...
Exposure lap 5...Reflector group 6...
...Exposure section 7...Lens group 8...
...Photoconductor tram 9...Charging device lO
...Developing device 11... Transfer device
12... Separation device 13... Static eliminator 14... Cleaning device 15.16... Cassette case 17...
・Paper feed roller 18...Paper feed path 19...
... Registration roller 20 ... Fixing device 21 ... Paper feed path 22 ... Paper discharge section 23 ... Paper discharge tray 30 ... Control board 31... Automatic paper selection function unit 32... EE sensor it counter 33... MS sensor 34... Memory board 35... Operation unit 36...Temperature detection board 37...AC driver i + anti-anti-Japanese 8...
・AC load 39...DC load 40...
...Optical motor 41...Optical motor control board 42...DCTJ, IQ unit 50...
...Operation panel 51...Numeric keypad 52...
...Number of sheets display LED 53...MR button 54...Auto 55.62.67...LED 56...Zoom button 57... ...Magnification display LED 59...Copy start button 60...
Paper cassette selection section 61...I Mr. I's selection Pokun 63...
・Gi size LED 65...Density selection section 66...Once selection button 68...EE Pokun 70...Status display section, Fig. 6, Fig. 5 Figure 9 Figure 10

Claims (2)

[Claims] (1) In an image forming apparatus capable of copying a predetermined original, a non-volatile memory that stores the predetermined number of sheets and the storage contents of the non-volatile memory in order to issue a signal when a predetermined number of sheets is reached. and an input means, the control means puts the setting mode into a setting mode using two numeric keys and a power switch, and when the input means is under a predetermined input condition, inputs a numerical value using the numeric keys. An image forming apparatus characterized in that by pressing a copy start button, numerical values are stored in the nonvolatile memory in order from the highest value. (2) The image forming apparatus according to claim 1, wherein the input means is a zoom button provided on an operation section.