JPS6180170A - Image forming device - Google Patents

Abstract

PURPOSE:To know a timing for inspection meeting an actual use by constituting a titled device in such a manner that the number of copies necessary for an ordinary periodic inspection can be accumulated from the point of the time of an interim inspection by a simple operation. CONSTITUTION:A PM (maintenance) cycle set mode is established and a 'P00' is displayed on a magnification display LED57 when the operator turns on a power source while keep pushing keys '2' and '5'. The operator pushes a zoom button 56 until the LED57 displays 'P27' in order to search the address to change. A ten-thousand unit is set at 2 when the operator inputs, for example, '2' by using numeric keys 51 and pushes a copy start button 59. A thousand unit is then set at 5 when the operator pushes the button 59 after operating a button 56 to display 'P28' on the LED57 and inputting, for example, '5' by the keys 51. The number of copies necessary for the periodic inspection from the point of the time of the interim inspection is successively accumulated even in the stage of said inspection in the above-mentioned manner and therefore the timing for the next periodic inspection is known and the smooth copying operation is assured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image forming apparatus, and in particular to an image forming apparatus capable of resetting the cumulative number of sheets accumulated for each copy in order to notify the periodic inspection time. It is related to.

[Prior art]

In general, in image forming apparatuses, and in particular electrophotographic copying apparatuses, as the number of copies increases, various components wear out or deteriorate. When the number of sheets is reached, a fixed 1
It is necessary to perform an inspection and replace any component parts that may wear out or deteriorate before the next periodic inspection. When the limit is reached, a message is displayed on the display to notify the operator.

However, if the inspection is carried out before the regular periodic inspection, carrying out the regular quantitative inspection at the same time will result in a lag between the actual use and the smooth operation. It addresses the disadvantage that it may become impossible to secure copying work, and
This method has a disadvantage in that it is a very complicated task to change the cumulative number of copies when an inspection is carried out before a normal inspection.

[Purpose of the invention]

This invention eliminates the drawbacks of the conventional method as described above, and makes it possible to accumulate the number of copies required for a regular periodic inspection from that point on, when an inspection is performed before a regular periodic inspection. To provide an image forming apparatus which allows the user to carry out maintenance work in a timely manner and to always know the periodic inspection timing that matches actual use.

[Structure of the invention]

The present invention provides an image forming apparatus capable of copying a predetermined document, which includes an accumulation means for accumulating the number of sheets for each copy, a control means, and a human power means, the control means comprising:
The accumulator is configured to be reset by entering the setting mode using the two ten keys on the operation unit and the power switch, and by pressing the copy start button when the manual input conditions are met.

[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. Platen cover 3 whose top surface can be opened and covered
is provided.

An exposure lamp 4 is provided inside the upper part of the main body 1 to irradiate light onto the lower surface of the document glass table 2, and the light reflected from the document irradiated by the exposure lamp 4 is transmitted to an exposure section 6 via a group of reflectors 5. , and a lens group 7 that is movable in the horizontal direction (in the direction of the arrow), and a drum-shaped irradiation drum 8 that is an image carrier is rotatably provided in the center. A charging device 9 is provided near the upper part of the irradiating drum 8, and a charging device 9 facing the irradiating phosphor drum 8 is provided;
r r o , a transfer device 11, a separation device 12, a static eliminator 13, and a cleaning device 14 are each disposed 5 in proximity to the photosensitive drum 8 so as to be oriented in the χi direction.

1:1 Two upper and lower cassette cases 15.16 are removably provided at the lower internal position of the main body l, and when each cassette case 15.16 is inserted, the stacked paper stacks are Paper feed rollers 17 that come into contact with the upper surface of the uppermost sheet of paper are respectively provided, and one cassette case L5 of one length is provided between the vicinity of the paper feed rollers 17 and the vicinity of the transfer device 11. A part of the guide plate constituting the paper feed path 18 is provided with a paper feed path 18 for conveying the paper in 16 to the 11:1 transfer device 11. A pair of upper and lower registration rollers 19 are disposed in this portion.

... A fixing device 20 is provided on the other side of the lower part of the interior of the main body l, and this fixing device 20 and the photosensitive drum 8 are connected to each other.
A paper conveyance path 21 is provided between the lf device 12 and the lf device 12, and a paper discharge section 22 is provided on the opposite side of the fixing device conveyance path 21. A paper discharge tray 23 is provided.

The control system of the electrophotographic copying apparatus described above is shown in FIG. 2, and 30 is a control unit (microcomputer).
The control board (C
B), 3] is an automatic paper selection function section, and 32 is an APS sensor board that outputs an analog voltage proportional to white and opposite to the control board), which is proportional to the yellow band provided on the bottom surface of the platen cover. The EE sensor board 33 is used to set the density of the copied image, and the MS sensor 134 for enlarging and reducing the image consists of a non-volatile memory.
At the same time, PM count I-due, PM setting number, color count number, APS dai 1! A memory cutting board 35 on which values, bias soft values, etc. are recorded, outputs the input of each setting key to the above-mentioned;
Further, an operation unit (OB) that lights up the display element according to a signal from the control*+a3O, 36 is a temperature detection board, 37
is an AC driver board, 38 is an AC load, 39 is a DC load, 40 is an optical motor, and 41 is an optical morph control that controls ON/OFF, rotation direction, and rotation angle of the optical drive system based on signals from the control board 30. Board (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 selected using the numeric keypad 51, the selected number of copies is displayed on the ED 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, it is
: Set to the same magnification of 1, press - times to set the upper part, that is, the enlargement mode that enlarges A4 size to B4 size, and press it again to set the mode 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, press it again to enter the second reduction mode, press it again to set the initial magnification to the same magnification, and when each mode is set, The corresponding LED 55 lights up, and the "auto" 54 lights up in the AMS mode.

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 same magnification.

Further, 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 steps of 0.01 times in the range from 0.65 times to +, 5S + a, When the MR button 53 of the enlargement/reduction mode is pressed and when the zoom button 56 is pressed, the contents, ie, the magnification, are displayed on the magnification display LED 57.

Reference numeral 60 denotes a paper cassette selection section, and this paper cassette selection section 60 has a size selection button 61, and each time this paper size selection button 61 is pressed, it switches between upper cassette selection mode, lower cassette 1 selection mode, and APS mode (automatic 3 person selection) shaku mode)! The header can be changed over.

Note that the APS mode is a mode that automatically reads the size of the original placed on the original glass table 2 and selects copy paper that matches the size of the original after copying. Even if the original size is the same, the number of copies selected is different when copying at the same magnification and when copying at variable magnification.

When one of the upper cassette selection mode and the lower cassette selection (shaku mode or APS mode) is selected, the LED 62 corresponding to that mode lights up. Display the selected paper size.

Reference numeral 65 denotes a density 1i selection tR section for changing the degree of reproduction of the copied image by changing the bias of the developing device IO, and since the manual mode is selected when the power is turned on, f degree selection Pokun 66 is used. By pressing either one of the 7 levels Ra, the LED 67 corresponding to the selected concentration level lights up, and by pressing the r% F button (automatic density selection button) 68. , switch from manual mode to automatic 4 degree selection mode and press E.
F, button 68 is pressed 1-, D lights up 1''.

In addition, 59 is a copy start point/, 70 is a status display area, and this status! The display section 70 shows various operations such as power, jam, paper replenishment, toner replenishment, periodic inspection, and thick paper fixing.
This is displayed by blinking ED71.

When operating the copy section 50 configured as described above to perform a copying operation, first set each copying condition, and first operate the numeric keypad 51 and press the required number of numeric keys. , the set number of sheets is displayed and ED52
Also, by operating the magnification selection section 58, the magnification for copying the original is determined, but as mentioned above, in the initial state of flJ when the power is turned on, the same magnification is selected. Therefore, if you want to obtain a copy of the same size, use M
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 changes to the AMS mode, and the auto LED 54 lights up to notify that this mode has been selected.

The above AMS mode automatically reads the size of the original placed on the original glass table 2 and prints the AM size that matches the size of the selected copy paper. This is a mode for selecting a magnification ratio, and when there is no copy paper corresponding to the selected size in the cassette case, the LED of the corresponding copy paper size is lit.

A flowchart at the time of magnification selection is shown in FIG. 4, and since the equal magnification flag is selected in the initial state, when the MR button 53 is pressed, 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, when the MR button 53 is pressed again, the AMS mode flag is selected. The AMS mode routine is then 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 AMS mode is selected, a copy image is obtained according to the flowchart shown in Fig. 5. In other words, the size of the paper in the paper cassette is selected before selecting the AMS mode. Therefore, when AMS mode is selected, the size of the original is detected, the reduction or enlargement magnification, that is, the variable magnification is automatically set, and by pressing the copy start button 59, a copy image matching the size of the paper is obtained. It is now possible to

In addition, in order for this AMS mode to operate, A, which will be described later, is required.
The condition is that the PS mode (Gisen Ishaku mode for 11th power) is not selected.

Furthermore, when a mode other than the AMS mode is selected in the magnification selection section 58, all paper sizes including the APS mode can be selected in the paper cassette selection section 60, and when the power is turned on, the APS mode is set to 11 sheets. At the same time, pressing the paper size il 1 length button 61 switches from APS mode to selecting the upper cassette, and further pressing the paper size selection button quickly changes from the upper cassette to the lower cassette.
Also, at the time of each selection, the corresponding ED62 will light up, and the size LIED will be displayed.
63 is also lit.

A flowchart for selecting the paper feed mode is shown in FIG. 7. When the paper size selection button 61 is pressed after the power is turned on, the APS flag is flashed, so the upper cassette is selected and the paper feeding routine for the upper cassette is performed. is 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 APS mode is a mode in which the size is automatically selected based on the original and the magnification selected by the magnification selection section 58, If paper corresponding to the selected paper size is not loaded in either the upper or lower cassette, the corresponding paper size E
D blinks to notify the operator of the required paper size.

In addition, the numeric keypad 51 is a double funk key, and when each key is pressed individually, the numerical value written on the top of each key is manually entered 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 below while pressing the P key, the contents written below each key will be performed.

In other words, pressing the rPJ key and the "9" key will fix the cardboard. This is used when setting the fusing temperature for thick paper. As the fusing temperature increases, the cardboard fixing LED on the display lights up. do.

Also, by pressing the rPJ key and the "8" key, you can use it to copy other originals during & continuation copying.
When the copy at the time of pressing is finished, vl imprint copy is set, and when the rPJ key and the "7" key are pressed, image shift is performed, which is used when forming the binding margin, and the leading edge of the image is set to about 10 degrees. Shift backwards.

Also, when you press the rPJ key and the "5" key, the PM counter number, that is, the number for periodic inspection, lights up and is displayed on the number display LED 52, and this can be done by changing the set value in the direction described later. I can do it.

Furthermore, various functions can be performed while pressing the rPJ key, and the operation is shown in the flowchart of FIG.

Setting and changing the value of the PM count 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, press the zoom button 56 to change the display to rPJ r2J r7. Let it be J.

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 10,000 is set to "3", and if you input "2" using the numeric keypad 51, it will display the number of sheets, and r3J r2J will be displayed on the CD 52. Then, when the copy start button 59 is pressed, the display changes to "2" and "2", thereby allowing the user to know that the setting of the unit of 10,000 as "2" has been completed.

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 r2J rOJ is displayed on the number display LED 52, so as above, for example, If you press "5" on the numeric keypad, the display will be r2J r5J
When you press the copy start button 59, the display shows "5".
” and “5” and the P that was previously set to 32000.
This means that the M cycle has been changed to 25,000, and these operations become as shown in the flowchart shown in FIG.

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 it reaches 25,000 or more, the display will blink, so this is it.
This allows notification of the necessity of periodic inspection, and the flowchart for this is shown in FIG. 10.

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 turn on the magnification display LED 57.
If you set it to r2j, you can change the numerical value of the child unit in the same way as above, rPJr3j r3J sets it to 10,000 units, rPJ r3
J r4J in thousands, rPJ r3J r5J in hundreds, rPJr3J r6J in thousands, and rP
It is possible to set one unit with J r3J "7".

Furthermore, the total copy value of the ff'l Plyl count can be reset with a single operation.

That is, if you turn on the power while holding down r4J or r7J on the numeric keypad 51, the counter reset mode will be entered, and the display will be changed to rPJ using the zoom button 56.
If the copy start button 59 is pressed after setting r9J rOJ, the counter value becomes 0, and the flowchart in this case is shown in No. 11 [F].

By changing the value of the total copy counter in this way, if an inspection is carried out before a regular periodic inspection, etc., the value of the total copy counter can be changed from that point onwards. Since a periodic inspection is displayed when the setting value of the 1M counter is reached by the BUSHAHASHIN, the usage condition is always maintained properly.

〔Effect of the invention〕

By virtue of the above-described configuration, the present invention has the normal settings necessary to ensure smooth copying work. If an inspection is performed before the 111 inspection, the number of copies required for periodic inspection will accumulate from that point on, so you can know the periodic inspection period that matches actual use and ensure smooth copying work. Moreover, it has an excellent effect in that the periodic inspection timing can be changed with a very simple operation.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; 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; FIG. 4
The figure is a flowchart showing rate selection, and Figure 5 is a flowchart showing rate selection.
S Mort 11. +r flowchart, Figure 6 is APS
The flowchart for remote mode, Figure 7, shows the paper feed cassette i!
! Figure 8 is a flowchart showing the double function function of the numeric keypad, Figure 9 is a flowchart showing the double function function of the numeric keypad.
FIG. 10 is a flowchart showing a comparison between the setting value of the 1M counter and the number of copies, and FIG. 11 is a flowchart showing resetting the 1M counter. 1... Body 2... Original glass stand 3... Platen cover 4...
Exposure lamp 5...Reflector group 6...
... Frost light section 7 ... Lens group 8 ...
...Arbitrary light body drum 9...Obi! Device 10
...Developing device 11... Transfer device
12... Minute 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 ... Conveyance path 22 ... Paper ejection section 23 ... l
Ji toshi tray 30... Control board 31... Automatic selection function section 32... EE sensor base i counter 33... MS sensor 34... Memory board 35...Operation unit 36...Temperature detection board 37...1 in AC driver 38...
・AC load 39...DC load 40...
...Optical motor +1...Optical motor control board 42...
・DC power supply unit 50...L power supply 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 point 60 ...
・Paper feed cassette 7) Selection section 61... Paper size selection button 63... Paper size LED 65... Deepness selection section 66... Density selection button 68...EE button 70...Status display section Fig. 6 Fig. 5 Fig. 9 Fig. 10

Claims (2)

[Claims] (1) An image forming apparatus capable of copying a predetermined document includes an accumulation means for accumulating the number of sheets for each copy, a control means, and an input means, and the control means includes two parts of an operation section. The image forming apparatus is characterized in that the accumulating means is reset by entering a setting mode using a numeric keypad and a power switch, and pressing a copy start button when the input means meets a predetermined input condition. (2) The image forming apparatus according to claim 1, wherein the input means is a zoom button provided on an operation section.