JPH02136870A - Image forming device - Google Patents

Abstract

PURPOSE:To grasp copying fee of the image forming device with a multiple number of paper feeding devices easily and accurately by storing the paper feeding number for each paper feeding device and copying paper size, and displaying the carrying number and copying price calculated from the stored data. CONSTITUTION:The size and use of the body to be image formed is detected by first detecting means 75, 86, 88 and a second detecting means 18, counted at a counting means 80 for each size, and the counted data is stored in a storing means 94. The content stored in this storing means 94 is read out at a reading out means 80, specified calculation is carried out at an arithmetic means 80 with various weights for each size, the values are displayed as they are, and also a calculated total value is displayed at a displaying part 90. Thus, the times of use for each paper feeding device can be easily and accurately be known, and appropriate fee for use can be calculated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to determination of i3i money according to the number of images formed in an image forming apparatus such as a copying machine.

(Prior Art) The present invention is applicable to an image forming apparatus for copying, etc.
As disclosed in Japanese Patent No. 82854, there is a transfer paper sheet that allows the user to select from a plurality of sizes of transfer paper, thereby allowing the user to form an image that suits the user's purpose. When copying using such a copying machine, a fixed fee is charged for each sheet of transfer paper of any size.

However, in reality, usage fees vary slightly depending on the size of the transfer paper.

Conventional copiers did not count and store the number of copies made for various transfer paper sizes, but instead counted the total number of sheets fed by each paper feed section, so the fees that should have been paid were Therefore, more fees were to be paid by the users.

These techniques were also applied to other image forming apparatuses.

(Problems to be Solved by the Invention) As described above, conventional image forming apparatuses count the total number of sheets fed by each paper feeding device and use it to calculate the copying fee. It is impossible to know the actual number of sheets fed by the device, so the actual number of times the feeding aim is used, that is, the usage fee corresponding to the 4 noises of the imaged material, can be determined one by one. could not.

In order to eliminate the above-mentioned drawbacks, the present invention provides an image that easily and accurately determines the number of uses for each paper feeding device and calculates an appropriate usage fee. Formation′! The purpose is to provide equipment.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention provides an image forming apparatus capable of feeding image forming materials of multiple sizes and forming images on each of them. a first detection means for detecting the image formation material; a second detection means for detecting the size of the image formation material detected by the first detection means; and a second detection means for detecting the size of the image formation material detected by the first detection means. a counting means for counting the number of detections by the first detection means according to the detection of the first detection means; a first storage means for storing the data counted by the counting means; and a first storage means for storing the data counted by the counting means; The present invention is characterized by comprising: a reading/outputting means, a performance means for performing a predetermined calculation on the data IO read by the reading means, and a display means for displaying the content calculated by the performance means. An image forming apparatus is provided.

(Function) In the device configured as described above, the size and use of the image forming object are detected by the first detection means and the second detection means, and the counting means counts each size for each size, Sofuda et al. 8
1 number data is stored in a storage means. The contents stored in the storage means are read out by the readout means, and the 3ti calculation means performs a predetermined cast with claws for each size, and calculates them to J.

Also, the total value is roughly calculated and displayed on the display.

(Example) An example of the present invention will be explained below with reference to the drawings.

FIG. 2 is a schematic cross-sectional view of a copying bin according to an embodiment of the present invention. On the top of the copying machine main body L (hereinafter referred to as main body 2), there are three document plates II and J, and in front of it,
An operation panel P A h< is provided.

In addition, on the lower right side of the main body 2, there is an upper paper feed slot 3 and a lower part <<,
(g [4) are provided, and an upper paper feed cassette 3△ and a non-feed paper cassette 4△ are installed on the right side of each.

The cassette cover of the upper paper feed cassette 3A serves as a manual paper feed tray 5A for manually feeding the transfer paper 7 as appropriate. Here, a manual paper feed device 5 is constructed which feeds paper using this manual paper feed tray 5Δ. A paper discharge tray 6 is attached to the left side of the main body 2. A photosensitive drum 7 is disposed approximately in the center of the wooden cup. Around the photoreceptor drum 7, a charging device 8.degree. optical system 9. Developing device 10. Transfer band "II device 11. Peeling 1! I
II charger 12. A clearing device 13, a static elimination lamp 14, etc. are arranged in sequence δq. At the bottom of main body 2, upper feeding trays (copy paper P2 automatically taken out from cassette 3A via pickup roller 15, copy paper P3 automatically taken out from unfed paper cassette 4A via pickup roller 16, and manual feed A copy paper conveyance path 17 is formed that guides the copy paper P1 manually fed from the paper table 2A to the paper tray 11r through between the photoreceptor drum 7 and the transfer charger 11. On road 17,
Paper stop switch from upstream 18. Registration roller 19. A heat roller 20 and a paper discharge roller 21 are sequentially arranged. Here, the details of each paper feed cassette and each device from the manual paper feed tray 5Δ to the register 1 to the roller 19 will be explained later.

The optical system 9 includes an exposure lamp 23. whose back part is surrounded by a reflector 22. It has a configuration including mirrors 24 to 29 and a lens 30.

Here, the photosensitive drum 7 is driven by a drive mechanism (not shown) in the direction of the arrow a shown in the figure in synchronization with the optical system 9. First, the photoreceptor drum 7 is uniformly charged by the charger 8 . Next, the exposure lamp 23 is uniformly irradiated with light, and a reflected light image of the document is formed on the photoreceptor drum 7 by the optical system 9. This (qζ is an electrostatic latent image).The formed electrostatic latent image is developed by one developing device, turned into a toner image, and sent to the transfer charger 11 side.

On the other hand, the copy paper 8 (Pl, P2, or P3 (hereinafter referred to as copy paper P) supplied automatically or manually is supplied by the registration roller 19 in which the paper roll switch 18 is synchronized with the photosensitive drum 7. Then, the J.color image shown above is transferred onto the copy sheets P by the transfer charger 11. Is the copy paper P to which this toner image has been transferred intended for release? i) Electric f! The sheet is peeled off from the photoreceptor drum 7 by 1:12, passes through the copy sheet transport path 17, and is guided to the heat roller 20. Here, the copy paper is discharged to the paper discharge tray 6 by the paper discharge roller 21 after the transferred toner image is melted and fixed.

On the other hand, after the 1-toner image is transferred onto the copying 8 (P), the residual 1-toner remaining on the photoreceptor drum 7 is cleaned by a cleaning ring 13, and the photoconductor drum 7 is roughly cleaned by a static elimination lamp 14. The remaining information above is erased to prepare for the next copying operation.

Inside the main body, an upper frame and a lower frame (not shown) are pivotally supported at one end via a support shaft (not shown), and the other ends of both frames are opened at a desired angle, for example, about 30 degrees. It is configured so that it can be done. As mentioned above, the upper frame includes the photosensitive drum 7 and its periphery (111, a charging device 8, an optical system 9, an exposure lamp 23, a developing device 10, a cleaning device ff113, a static eliminating lamp 14, etc.). Each device is attached to the upper frame by appropriate means.Furthermore, the document table 2, the pickup row 515 of the upper automatic paper feeder, and the feed roller 31 are attached to the upper frame.
The front row 532 and the manual feed roller 33 of the manual paper feeder 5 are removed to form the upper units I to 1A. The lower frame includes an overprint paper set 1-3△, a lower paper feed cassette/IA, a feed roller 34, and a Ni roller 35. Transfer charger 11. Charger for peeling 12. heat low 520. Paper ejection [1-ra 21° Each mechanism such as the paper ejection tray 6 is attached (pull) by appropriate means, and the lower unit 1
-1B.

After rotating and removing the O-on cover (not shown) of the wooden body 2, a
: Composed of sea urchins.

Since FIG. 3 shows the operation panel P△ mentioned above, the upper right block in the figure includes an interrupt key 5o for setting the L11 interrupt mode for interrupt copying, a preheating key 51 for preheating the main body, and a preheating key 51 for preheating the main body. A counter key 52 is provided to display the number of sheets fed by each conveyance roller.

To the left of the counter key 52 is provided a lamp section 53 that displays the status of the main body, etc. To the left of this lamp section 54 is a number display section 54 that displays the setting of the number of copies. Each is provided. The preheating key 51
Below is a copy key 55 for executing a copy operation.
A numeric keypad 5G for setting the number of copies, etc. is provided to the left of the copy key 55. To the left of the numeric keypad 54, there is provided a density XQ setting section 57 for setting the 1m degree of copying. This rA degree setting 5
To the left of 7 is a color selection key 58 for selecting the color of the copy. 5 cassette selection keys for selecting paper feed cassettes, 6 enlargement/reduction keys for setting large mode and reduction mode
An equalization key 61 is provided for setting 0 and equal magnification modes. To the left of these keys, there are 5 information such as operating status.
A liquid crystal display section 62 for displaying the following information and an information key 63 for calling up the normal mode are provided on the liquid crystal display section 62.

Here, when a paper feed cassette is selected using the cassette selection 1 scale key 59, the storage area in the storage device box corresponding to that group cassette is set at the same time, as will be explained later.

When paper is fed from the manual paper feed unit u5, the storage area is not set by pressing each of the above keys, but the copy paper P
The storage area is set when the manual feed switch described in step 1 detects the copy sheet P1 upon insertion of the copy sheet P1.

Next, details of each of the paper feeding means will be explained.

The mechanisms described above are given the same reference numerals to omit detailed explanations. As shown in Figure 4, as a paper feeding means,
From the top, manually feed V:, position 5. Upper paper feeder ffi
3 and a paper unfeeding device 4 are provided. Each of these paper feed devices is loaded with copy paper P1 of an appropriate size for use.
．． P2 and P3 are supplied.

Furthermore, the upper paper feed cassette 3A and the sketch paper power L TS 1 to 4△ are cartridge types that can be attached to the main body 1 freely, and when changing the copy paper → noise or copy paper P2.
(or P3) It has an efficient configuration during replenishment.

Copy paper P1. P2 and P3 each with the registration roller 19
Copy paper transport paths leading to the copy paper are individually formed. Copy paper conveyance path 8A (hereinafter referred to as conveyance path 8) of the conveyance path of copy paper P2
A) is from the manual feed roller 533 to the feed roller 3.
1 and separation roller 32. This conveyance path 8Δ has a manual feed switch 7 on the way from the conveyance upstream side.
0 is placed. A copy paper transport path 8B (hereinafter referred to as transport path 8B), which is a transport path for the copy paper P2, extends from the pickup roller 15 to the registration roller 19. In the middle of this conveyance path 8B, there is a feed roller 310 from the upstream side.
A separation roller 32 and a vapor stop switch 18 are arranged in this order. A transfer paper transport path 8C (hereinafter referred to as transport path 8C), which is a transport path for the copy paper P3, extends from the pickup roller 16 to the register 1-roller 19.

In the middle of this conveyance path 8C, from the upstream side, there are a feed roller 341, a separation roller 35, and a paper stop switch 1.
8 are arranged in sequence. Further, the conveyance path 8A joins the conveyance path 8B from the feed roller 31 and the separation roller 32.

In the conveyance path 8B, the copy paper P2 is taken out by the rotational lowering and rotation of the pickup roller 15 in a drive mechanism (not shown), and is taken out by the feed roller 31 and the feed roller 31 and the roller 32.
It is transported to the Ig contact part with. The feed roller 31 rotates in the direction indicated by the arrow in the figure.

The separation roller 32 is similarly driven to rotate in the direction indicated by the arrow in the figure. Therefore, when there is no copy paper P2 or when one sheet is fed, friction occurs between the feed roller 31 and the separation row 532 or between the copy paper P and the separation roller 32. At this time, the spring joint provided around the support shaft (not shown) slips, causing separation 0-532.
rotates in the direction of arrow C shown in the figure. In other words, when sending one sheet,
Copy paper P 2 is conveyed to vapor stop switch 18 . When two sheets of the copy paper P2 are fed, the separation row 532 and the feed roller 31 both rotate in the direction indicated by the arrow in the figure, since the friction between the copy paper P2r7.1 is small. In the case of such two-sheet feeding, the upper copy sheet P2 is fed by the feed roller 31! - The copy paper P3 on the lower side is conveyed to the knob switch 18.
G, the paper is returned to the upper paper feed force set 1-3A by the separation roller 32. In this way, only one sheet of copy paper P2 is transported. After a predetermined period of time after the copy sheet P2 is conveyed by the feed roller 31, the vapor stop switch 18 is turned on, and the copy sheet P2 is aligned with the registration rollers 19 and conveyed to the transfer process.

The same applies to the transport mode of the copy paper P3 in the 1112 transport path 8C.

Further, when the copy paper P1 is fed onto the manual feed tray 2A, the manual feed switch 70 detects the copy paper P1 and is turned on from off. Further, by a drive mechanism (not shown), the manual feed roller 33 of the f2 feed path 8Δ rotates and descends, and further rotates to form the feed roller 31 and the separation roller 3.
The copy paper P1 is conveyed to the 18 contact section of No.2. From there,
This becomes the conveyance path 8B, and the conveyance operation t of the copy paper P1 is as described above.

Here, when we look at each paper feed section and the various rollers disposed in each of the copy paper transport paths 8A to 8C, we can see the following. The number of copy sheets conveyed by the manual feed roller 33 is equal to the number of sheets fed by the manual feed device 5. Pick up roller 15
The number of copy sheets transported is equal to the number of sheets fed by the paper non-feeding device 3. The number of copy sheets conveyed by the feed roller 31 and the separation roller 32 is equal to the total number of sheets fed by the manual paper feeder 5 and the sketch paper device 3. The number of copy sheets conveyed by the pickup roller 16, the feed roller 34, and the minute roller 35 is equal to the number of sheets fed by the paper non-feeding device 4. The number of copy sheets conveyed by the registration roller 19 is equal to the total number of sheets fed by each feeding unit.

In FIG. 4, an upper size switch 71 and a lower size switch 72 are provided in each paper feed cassette H inlet of the sketch paper device 3 and the lower paper loader 4. A vapor empty switch 73 is located at the bottom of each paper cassette installation opening.
and 74 are provided, respectively. Both the upper size switch 71 and the lower size switch 72 are means for generating a cassette not loaded (not installed) signal that detects whether a cassette is installed or not and generates a signal when it is not installed. If the paper cassette to be used, for example, the overprint paper cassette 3A, is
ff, the contact of the upper size switch 71 closes and a cassette non-installation signal is sent to the main circuit which will be described later.

When the sketch paper cassette 4A is not installed, the lower size switch 72 performs the same operation. Furthermore, in this state, the paper replenishment indicator lamp in the lamp section 53 blinks, and the copying operation does not start even if the copy key 55 is turned on.

Furthermore, since the upper size switch 71 and lower size switch 72 also generate an identification code unique to the cassette (indicating the size of the copy paper stored in the cassette), the size of the copy paper in the cassette can be determined according to the installed cassette. It also detects.

Further, vapor empty switches 73 and 74 are paper empty detection devices that detect the presence or absence of copy paper P in each paper feed cassette and issue a signal. If there is no copy paper P in one or both of the paper feed cassettes, a paper error signal is sent to a pull circuit which will be described later. In this state, the paper replenishment indicator lamp in the lamp unit 53 blinks as in the case when the cassette is not installed, and the copying operation will not be started even if the copy key 55 is turned on.

A manual feed switch 70 is provided as a pretext for loading the copy paper P1 of manual feed paper ¥A'115.

This switch is a paper insertion detection device that detects whether copy paper P1 is inserted or not and sends a signal. When the copy paper P1 is loaded onto the manual feed tray 2△, the contact of the manual feed switch 7° is closed, and a paper insertion signal is sent to a control circuit to be described later. In this state, the manual feed section setting is displayed on the LCD display section 62, and the manual feed section setting is displayed on the LCD display section 62.
The selection of paper feed force cera 1 by inputting 9 will no longer be accepted.

Furthermore, a manual paper feed width detector 75 is similarly installed and detects the width size of manually fed copy paper. Detects the size of manually fed copy paper.

FIG. 1 shows the overall control circuit of 8A'Ifi according to this embodiment. That is, the CPU 80 is the main control section and controls the entire copying machine. This CPU80
The following devices are connected to the input of the input ink face circuit 81. Vapor stop switch 1
8. Input switch 82 for various keys on operation panel PA
．． Front cover switch 83. Other various switches and sensors necessary for copying operations 841 Manual feed tray 2A
A manual feed switch 70 for detecting insertion of a copy sheet, a manual paper feed width detector 75. The copy paper empty detection device 85 of the sketch paper device 3, the cassette non-installation signal generating means 86, and the copy paper empty detection device of the paper non-feeding device 4? i87, cassette signal generating means 88, etc. Further, the following devices are connected to the output of the CPU 80 via eight output interface circuits. Operation panel PA
A display device 90 such as a lamp section 53 and a liquid crystal display section 62, and a manual paper feeder 2. These are various power sources 91, various motors 92, and various solenoids 93 for the sketch paper device 3 and paper non-feed device 4.

Note that the cassette non-installation signal generating means 86 and 88 include the above-mentioned upper size switch 71 and lower size switch 72. The signals supplied by these switches are also input to the CPU 80 via the input ink face circuit 81, and are further displayed on the operation panel PA via the output interface circuit 89, so that the copy paper size can be visually confirmed.

Further, a signal from the vapor stop switch 18 is also input to the CPU 80 via the input ink face circuit 81.

The signal from the paper stop switch 18 is a signal A that is sent to synchronize the rotation of the photosensitive drum 7 and the conveyance of the copy paper P in the copying operation of the main body 2 described above, and to feed the copy paper P from the registration row 519. It is a turn signal. This signal is counted by the program counting function in the CPU 80. Further, the counted value is stored in a storage device 1194 externally connected to the CPU 80 at any time.

The storage device 94 is an EEPROM (electrically erasable and self-programmable read-only memory) or a RAM.
This is a storage device that stores the number of sheets to be fed (the number of times of sheet feeding operation) calculated by vJ in the PU 80, and its details will be explained below.

J: Sea urchin shown in FIG. 5 In this embodiment, in order to store the number of fed sheets for each paper feeding section in the storage device 94, there is a storage ffi area 94A for the manual paper feeding section and a storage area 1a for the upper paper feeding cassette section.
94B and a storage area 94G for the unfed paper cassette section are set.
A storage area 94D for the total number of sheets fed is provided to store the total number of sheets fed. The storage area for storing the number of sheets is an A4 size storage area 94E,
A3 size storage fE 1a94 F, B 4 size X Ka storage area 1iff94 (4H B5 size storage area 941) are provided respectively. These storage areas are selected according to the size of the copy paper and the counting data is stored.Data is stored in parallel in the storage area for each paper feeding device and the storage area for each paper size. The counting data stored in the area for each paper feeding device and the area for each copy paper size is, for example, composed of 4 bits x 5 and stored as a BCD code.It is also stored in the total storage area 94D. The counted data is composed of, for example, 4 pits x 5, and is stored in a BCD code.

Next, the operation of each paper feeding device in the above-described configuration will be mainly explained. First, the operation of the paper feeding device from the time of power supply will be explained using the flowcharts shown in FIGS. 6 and 7. When the power is turned on, the process proceeds to step 100. In step 100, it is checked whether the Δ-gathering of the heat roller 20 has been completed. Once completed,
The copy permission display lamp on the operation panel PA is turned on to enter the standby state, and in step 101 the operation panel PA
Accepts key operations above. Next, the process proceeds to step 102, in which it is checked whether the manual feed switch 70 is turned on in order to check whether the manual paper feed table 2A is to be used.

If it is not turned on, the process proceeds to step 103; if it is turned on, the process proceeds to step i09. In step 109,
Select manual paper feeder 2 and proceed to step 113. In addition, in step 103, it is checked whether or not the lower paper cassette 4 is loaded based on the unfeeding paper cassette non-installation signal from the cassette non-installation signal generating means 88 in the entrance of the lower paper storage H 4, and whether or not the lower paper cassette 4 is loaded is checked. The output of the transfer paper empty detection device 87 is used to check whether the copy paper P3 is being fed to the cellar 1 even if the copy paper P3 is loaded.

If the copying taP3 is not set, the process advances to step 104. In step 104, the main paper feed cassette 3.DELTA. is checked in the same manner as the unfed paper cassette 4A in step 103. If the copy paper P2 has been rolled, the process advances to step 105. In step 105, the copy paper supply lamp on the operation panel P A 1 is turned on, and the copy ready indicator lamp on the operation panel P A 1 is also turned off to return to the standby state.

In this way, if the manual paper feeder 5 is not used and the main paper feed cassette 3A and non-feed paper cassette 4A are not installed or the copy paper I (P2) is empty, the system prompts you to replenish copy paper P2. In step 103 above,
If the unfed paper cassette 4A is placed in Pj, step 1
Proceed to 06. In step 106, the sketch paper cassette 3
A/fi' VC is checked to see if it is loaded, and even if it is loaded, the copy empty/empty detection device 85 is checked to see if copy paper P2 is set.

If the mP2 for copying has been set, the process advances to step 108.

In step 108, it is checked whether or not the paper non-feeding device 4 is currently selected by the force sensor 1 to selection key 59. If paper non-feeding device 4 is selected, step 110
move on. In step 110, the sketch paper device 4 is selected, and the process proceeds to step 113.In step 106, if the sketch paper device 3 is not installed, step 10
8 and proceed to step 110. If J5 is in the step 104 and the J2F piece ((device 3 is installed), or if the unfeeding device 4 is selected in the step 108, the step 11
Go to 1. In step 111, the upper problem device 3 is
Select and proceed to step 113. In this way, if either the lower feeder ft (device fi 3 or paper unfeeder 4, or the back of them) is not installed, selection of the lining tit Si position on the side to which it is not installed is prohibited.

In step 113, the storage area of the storage device 94 corresponding to the selected paper feeding device is set, and the size of the copying MP in the selected paper feeding device is displayed and the corresponding storage area is set. That is, the size of the stored copy paper P is determined based on the identification code of the paper feed cassette of the selected paper feed v device, and the size is displayed on the liquid crystal display section 62 on the operation panel PA. After displaying the size of the copy paper P in this manner, the process proceeds to step 114. Step 11
In step 4, check whether there is any abnormality in the woodwork.

If there is an abnormality, the abnormality will be handled and the system will return to the standby state. If there is no abnormality, the process advances to step 115. In step 115, it is checked whether the copy key 55 on the operation panel PA has been turned on.

If it is turned on, the copying operation is started and the process advances to step 116. If it is not turned on, it returns to standby mode.

In step 116, various solenoids, various motors, various power supplies, and various lamps are turned on, and the process proceeds to step 117. In step 117, the pickup roller 1) in the selected paper feeding device rotates to start feeding paper, and the process proceeds to step 118. In step 118, the feed roller is rotated to convey the picked up fallen paper P, and the process proceeds to step 119. In step 119, the paper stop switch 18 is turned on after a predetermined period of time has elapsed since the feed roller conveyed the copy paper P.
Go to 0. In step 120, the display content of the sheet number display section 54 on the operation panel PA is changed to "1Jmn," and in step 12
Go to 1. In step 121, the data stored in each storage area in the storage device 94 corresponding to the used supply device and one size of copy paper are sequentially stored, and in step 1
Proceed to step 22. In step 122, "1" is added to the read data, and the process proceeds to step 123. Step 12
In step 3, the added data is stored again in each storage area from which it was read, and the process proceeds to step 124. Step 124
Now, rotate the registration roller 191 and place the copy paper P.
Wl is sent onto the transfer charger 11 that performs image transfer, and the process proceeds to step 125. The step 120 can be performed between steps 121 to 124, or before or after steps 121 to 124. In step 125, it is checked whether or not the set number of sheets has been fed. If paper feeding has ended, the process advances to step 126.

In step 126, the various solenoids, various motors, various power sources, and various lamps O are turned off, and the process returns to the standby state (male state). If the number of sheets set in step 125 has not been fed yet, the process returns to step 117. It is also possible to perform steps 120 to 123 in parallel to step 124.

Next, 70-chi1? shown in FIG. 4II11 on each conveyance roller using the ! 2 The operation of displaying the number of sent sheets will be explained. When displaying the cumulative number of sheets conveyed from the standby state, the process advances to step 130. In step 130,
[Request to display the number of sheets to be sent for each 1112 sending O-La (input by pressing the counter key 52 on the operation panel PA)
Check to see if there is one.

If there is a display request, the process advances to 131. In step 131,
The number of sheets fed by each paper feeding device and each size of copy paper is read from the storage area in the storage device PA, and the number of sheets conveyed by each conveying roller is calculated as described above.

・Number of sheets fed by the manual feed section of the manual feed roller 33 ・Number of sheets fed by the pickup row upper drawing paper feed cassette section ・Number of sheets fed by the paper feed 15 of the cassette section ・Paper feed 1 of the bottom fit cassette section of the lower drawing up roller
6. Number of sheets fed by feed roller 34 and separation 〇-ra 35, total number of sheets fed by feed roller 31- (manual paper feed section 〇-sheet feed and separation roller 35 cassette section)
Number of sheets/number of sheets fed by registration roller 19 - (number of sheets fed by manual paper feeding section, cassette section G and sketch paper cassette section) In step 132, each number of fed sheets is multiplied by the charge for each size.

After performing the calculation in this manner, the process proceeds to step 133.

In step 133, the number of sheets conveyed by each conveyance roller is set to the ninth
The information is displayed on the liquid crystal display section 62Δ on the operation panel PA as shown in the figure, and the process proceeds to step 134. These display characters, display locations, etc. are read and set from the contents of the ROM within the CPU 80.

In step 134, it is checked whether or not there is a request to clear the display of the number of transported sheets on the liquid crystal display section 62 in step 133.

If there is a clearing request, the process advances to step 135. Step 1
If there is no clearing request at step 34, the process advances to step 136. It is checked whether a predetermined time (for example, 30 seconds) has elapsed since the number of sheets to be transported and the copying fee were displayed in step 133. If the predetermined time has not elapsed, step 134
Returning to step 135, if the predetermined time has elapsed, the process proceeds to step 135. In step 135, the display on the liquid crystal display section 62 is returned to the normal mode, and the standby state is returned. In step 130, if there is no display request, the device returns to the standby state.

With the configuration described above, since the count data is stored in BCD code, there is no need for data conversion when counting and displaying the count data. When displaying the total vllti of the Δ1 number data, it is displayed on the liquid crystal display section 62 on the operation panel PA, so no extra parts are required. Furthermore, when the signal from the paper stop switch 18 is counted, a more accurate paper feed count value can be obtained since the signal of the copy paper P has a low rate of &i[. Vapor stop switch 18 has a low probability of jitomu
is located upstream of the copy paper transport path 17, and this can be mentioned because the number of transport rollers used up to that point is small. The present invention is not limited to the above-mentioned embodiment, and the number of sheets transported by each of the 10 feed rollers is displayed at once, but the number of sheets transported by each transport roller may be displayed each time a predetermined key on the operation panel is pressed. It is also possible to display the information sequentially at a certain period of time. Further, the switch for continuously displaying the number of sheets is not limited to this embodiment. In addition to displaying only the total copy fee as shown in Figure 9, it is also possible to display the copy fee by size as shown in Figure 10, allowing you to know in detail the size of the copy paper used. can.

[Effects of the Invention] As detailed above, according to the present invention, the number of fed sheets is stored for each paper feeding device and each size of copy paper, and the number of sheets to be transported and the copying fee calculated from the stored data are displayed. Since it is possible to use multiple paper feeders, I! To achieve this effect, it is possible to easily and accurately grasp the copying charges of the image forming apparatus.

[Brief explanation of the drawing]

1 to 9 do not show one embodiment of the present invention, so FIG. 1 is a block diagram of the control device 611, FIG. 2 is a cross-sectional schematic diagram of a copying bin, and FIG. 3 is a cross-sectional diagram of a paper feeding device. Schematic diagram, Figure 4 is a front view of the operation panel, Figure 5 is a configuration diagram of the storage device, Figure 6 is the first half of the flowchart for the first year of the paper feeder, Figure 7 is the second half of the operation flowchart of the feeder W1 device, and Figure 8 is the front view of the operation panel. The figure shows the intersection of the conveyor rollers 19! FIG. 9 is a front view showing the copying fee displayed on the liquid crystal display, and FIG. 10 is a front view showing the copying fee displayed on the liquid crystal display according to another embodiment of the present invention. . 3...Drawing paper device, 4...Drawing paper device, 5...Manual paper feeding device, 18...Paper stop switch,
70...Manual feed switch, 62.62A
...Liquid crystal display section, 71...Upper size switch,
72...0 Asize Suizuji, 80...CPtJ,
94...Note 111 Device agent Ben Irushi IIIJ Chika Kenyu Yamashita Figure 5 Figure Figure

Claims (1)

[Scope of Claims] An image forming apparatus capable of feeding image forming materials of a plurality of sizes and forming images on each of them, comprising: a first detection means for detecting the image forming materials in relation to image formation; a second detection means for detecting the size of the image forming material detected by the first detection means; and a counting means for counting the number of detections by the first detection means according to the detection by the second detection means. a first storage means for storing the data counted by the counting means; a reading means for reading the data stored in the storage means; and a predetermined calculation for each data read by the reading means. What is claimed is: 1. An image forming apparatus comprising: a calculation means for performing the calculation, and a display means for displaying the content calculated by the calculation means.