JPH02171770A - Image forming device - Google Patents

Abstract

PURPOSE:To calculate an appropriate service fee for each user by counting the use frequency of a material to be image-formed after a user is identified and displaying stored contents and data obtained by calculating stored fee data. CONSTITUTION:The device is provided with a 1st storage means which counts the use frequency of the above-mentioned material after a user is identified and stores data in response to the identification, and a 2nd storage means which stores data on image forming fees. Moreover, the device has a display means 62 which displays the calculated contents from data read out of the 1st and 2nd storage means. When the password of a user is inputted through a ten-key 56, a liquid crystal display part 62 designates the area to display a copying- enable message. Thus, a copying fee can be grasped readily and precisely for each user.

Description

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

(Prior art) Conventionally, in image forming apparatuses such as copying machines, Japanese Patent Laid-Open No. 57
As disclosed in Japanese Patent Publication No. 82854, there is a system that allows the user to select a plurality of sizes of copy paper and form an image that suits the user's purpose. When copying using such a copying machine, a fixed fee is charged for each copy sheet of any size.

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

Conventional copiers did not count and store the number of copies made for each copy paper size, 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, and as a result, it is not possible to clearly determine the usage fee corresponding to the actual number of times the sheet feeding device is used, that is, the size of the image forming material. Furthermore, since the usage fee for each user is not known, if a copy machine is installed in an office etc.
It was very inconvenient because it was not possible to separate charges between users.

In order to eliminate the above-mentioned drawbacks, the present invention aims to provide an image forming apparatus that allows each user to easily and accurately know the number of sheets used for each paper feed size and calculate an appropriate usage fee. do.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention supplies image forming materials of a plurality of sizes to an image forming section, and the image forming section supplies the image forming materials to the image forming section. In an image forming apparatus that forms an image on an image forming material, an identification device for identifying an operator involved in image formation, and a detection device that detects the image forming material related to the image formation after being identified by the identification device. means, a counting means for counting the number of detections according to the detection by the detection means, a first storage means for storing the data counted by the counting means according to identification by the identification means, and an image related to the image formation. a second storage means for storing the data of the formation fee; a reading means for reading the data stored in the first and second storage means; and a predetermined method for each data read by the reading means. An image forming apparatus is provided, comprising a calculation means for performing the calculation, and a display means for displaying the content calculated by the calculation means.

(Function) In the apparatus configured as described above, after the identification means identifies the operator, the detection means detects the use of the image forming object, the counting means counts the number of times of detection, and the number of detections is counted by the counting means. count data is stored in the first storage means. Further, data on image forming fees is stored in the second storage means. The contents stored in these storage means are read by the reading means, the calculation means performs predetermined calculations using the read data, and the data obtained by these calculations is displayed on the display section. .

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

(Figure 2 is a cross-section of a copying machine according to an embodiment of the present invention)
A document table 2 is provided on the top surface of the document table 2, and an operation panel PA is provided in front of the document table 2.

Further, a lower paper feeding device 3 and a paper non-feeding device 4 are provided at the lower right of the main body 1, and a lower paper feeding cassette 3A and a lower paper feeding cassette 4A are attached to the right of each. The cassette cover of the lower paper feed cassette 3A serves as a manual paper feed table 5A for manually feeding the transfer paper 7 as appropriate. Here, a manual paper feed device 5 is configured which feeds paper using this manual paper feed table 5A. A paper discharge tray 6 is attached to the left side of the main body 1. A photosensitive drum 7 is disposed approximately in the center of the main body 1. Around the photoreceptor drum 7, a charging device 8.degree. optical system 9. Developing device 10. Transfer charger 11. Charger for peeling 12. A cleaning device 13, a static elimination lamp 14, and the like are sequentially arranged.

At the bottom of the main body 1, there are copy sheets P2 automatically taken out from the lower paper feed cassette 3A via a pickup roller 15,
Copy paper P3 automatically taken out from the lower paper feed cassette 4A via the pickup roller 16 and manual paper feed tray 2A
A copy paper transport path 17 is formed that guides the copy paper P1 manually fed from the photosensitive drum 7 and the transfer charger 11 to the paper discharge tray 6. A paper stop switch 18. Registration roller 19. A heat roller 20 and a paper discharge roller 21 are sequentially arranged. The details of each paper feed cassette and each device from the manual paper feed tray 5A to the registration rollers 19 to 7 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 in the drawing in synchronization with the optical system 9. First, the photoreceptor drum 7 is uniformly charged by the charger 8 . Next, light is uniformly irradiated by the exposure lamp 23, and a reflected light image of the document is formed on the photoreceptor drum 7 by the optical system 9. This image is an electrostatic latent image. This formed electrostatic latent image is developed by the developing device 19 to form a toner image, and the toner image is sent to the transfer charger 11 side.

On the other hand, copy paper P1, P2, or P3 (hereinafter referred to as copy paper P) supplied automatically or manually is supplied by a registration roller 19 whose vapor stop switch 18 is synchronized with the photosensitive drum 7. The above-described toner images are transferred onto these copy sheets P by the transfer charger 11. The copy paper P to which this toner image has been transferred is peeled off from the photosensitive drum 7 by a peeling charger 12, passes through a copy paper conveyance path 17, and is guided to a 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 toner image is transferred onto the copy paper P, the residual toner remaining on the photoreceptor drum 7 is cleaned by the cleaning device 13, and the residual image on the photoreceptor drum 7 is erased by the static elimination lamp 14. It is prepared for copying operations.

Inside the main body 1, 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 described above, the upper frame includes the photoreceptor drum 7 and the charger 8 for charging around the photoreceptor drum 7. Optical system 9. Exposure lamp 23. Each device, such as a developing device 10, a cleaning device 13, and a static elimination lamp 14, is attached by appropriate means. Furthermore, a document table 2 and a pickup roller 15 of the upper automatic paper feeder are mounted on the upper frame. Feed roller 31 and separation roller 32
and the manual feed roller 33 of the manual paper feeder 5 are attached to form an upper unit IA. The lower frame includes a top paper cassette 3A, a bottom picture paper cassette 4A, a feed roller 34, a separation roller 35. Transfer charger 11
．． Charger for peeling 12. Heat roller 20. Paper ejection roller 2
Each mechanism, such as the 1.degree. paper discharge tray 6, is attached by appropriate means to constitute the lower unit IB.

After rotating and removing the flown cover (not shown) of the main body 1, the copy paper P is almost removed through the case opening/closing device (not shown).
It is configured so that it can be opened and closed along the copy paper conveyance path 17.

FIG. 3 shows the above-mentioned operation panel PA, and the upper right cloth block in the figure includes an interrupt key 50 for setting an interrupt mode for interrupt copying, a preheating key 51 for preheating the main body 1, and each transport A counter key 52 is provided for displaying the number of sheets fed by the paper roller. To the left of the counter key 52 is provided a lamp section 53 that displays the status of the main body 1 using a lamp, and 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. A copy key 55 for executing a copying operation is provided below the preheating key 51, and on the left side of the copy key 55, input of the operator's (user) password and setting of the number of copies are provided. A numeric keypad 56 for performing operations such as the following is provided. To the left of the numeric keypad 56 is provided a density setting section 57 for setting the copy density. To the left of this density setting section 57 is a color selection key 58 for selecting a copy color. Cassette selection key 59 for selecting a paper feed cassette. An enlargement/reduction key 60 for setting an enlargement mode and a reduction mode and an equal-size key 61 for setting an equal-size mode are provided. To the left of these keys, there is a liquid crystal display section 62 that displays the operating status, etc., and an information key 6 that calls up the contents of the storage area corresponding to the operator's (user's) password on this liquid crystal display section 62.
3 are provided. Further, on the right side of the numeric keypad 56, a clear key 56A is provided for clearing the display contents of the liquid crystal display section 62. Further, on the right side of the numeric keypad 56, a clear key 56A is provided for clearing the display contents of the liquid crystal display section 62.

First, when the operator's password is input using the numeric keypad 56, the CPU inquires about the area corresponding to the password in the storage device, as will be described later. If this corresponding area does not exist in the storage device, a re-input message is displayed on the liquid crystal display section 62. If the corresponding area exists in the storage device,
Continuously specify the area and make it possible to copy.

Further, when a paper feed cassette is selected using the cassette selection key 59 before the start of the copying operation, as will be explained later, at the same time, the storage area corresponding to the selected paper feed cassette in the area designated as described above in the storage device is set. When paper is fed from the manual paper feeder 5, the storage area is not set by inputting each of the above keys, but by the manual feed switch described later detecting the copy paper P1 when inserting the copy paper P1. The storage area in the area is set, for example, as a B5 size storage area.

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

The mechanisms described above will be given the same reference numerals to avoid redundant explanation. As shown in Figure 4, as a paper feeding means,
From top to bottom: manual paper feeder 5. A sketch paper device 3 and a sketch paper device 4 are provided. Each of these paper feeding devices is provided with copy sheets Pi, P2 and P of appropriate sizes for use.
3 is supplied.

Furthermore, the top picture paper cassette 3A and the bottom picture paper cassette 4A are
It is a cartridge type that can be freely attached to and removed from the main body 1, and has an efficient configuration when changing the size of copy paper or when replenishing copy paper P2 (or P3). Copy paper transport paths that guide each of the copy sheets Pi, P2, and P3 to the registration rollers 19 are formed individually. Copy paper P2
The copy paper transport path 8A (hereinafter referred to as transport path 8A) of the transport path extends from the manual feed roller 33 to the feed roller 31 and separation roller 32. A manual feed switch 70 is disposed in the conveyance path 8A midway from the upstream side of the conveyance. Copy paper conveyance path 8 of the conveyance path of copy paper P2
B (hereinafter referred to as conveyance path 8B) is the pickup roller 1
5 to registration roller 19. This conveyance path 8B
A feed roller 311, a separation roller 32, and a paper stop switch ]8 are arranged in this order from the upstream side. Transfer paper conveyance path 8C of the conveyance path of copy paper P3
(hereinafter referred to as the conveyance path 8C) is the pickup roller 16
to the registration roller 19.

In the middle of this conveyance path 8C, a feed roller 34. Minute M roller 35 and 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 a drive mechanism (not shown) by rotating and lowering the pickup roller 15, and is conveyed to the sliding contact portion between the feed roller 31 and the separation roller 32. 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 roller 32 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, and the separation roller 32
rotates in the direction of arrow C shown in the figure. In other words, when sending one sheet,
Copy paper P2 is conveyed to paper stop switch 18. When two copies of the copy paper P2 are fed, the separation roller 32 and the feed roller 31 both rotate in the direction indicated by the arrow in the figure since the friction between the copy papers P2 is small. In this case of two-sheet feeding, the upper copy paper P
2 is conveyed to the vapor stop switch 18 by the feed roller 31, and the lower copy sheet P3 is conveyed to the separation roller 3.
2, the paper is returned to the main paper feed cassette 3A. In this way, only one sheet of copy paper P2 is transported. Copy paper P
2, the registration roller 19 is turned on by turning on the paper stop switch 18 after a predetermined time after the feed roller 31 is conveyed.
It is then aligned and transported to the transfer process.

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

Further, when the copy paper P1 is fed onto the two manual feed trays, the manual feed switch 70 detects the copy paper P1 and supplies an on (HIGH level) signal from an off (LOW level) signal. Furthermore, the manual feed roller 33 of the conveyance path 8A is rotated and lowered by a drive mechanism (not shown), and further rotated to form the feed roller 31 and the separation roller 3.
The copy paper P1 is conveyed to the sliding contact portion No.2. From there, it becomes the conveyance path 8B, and the conveyance operation of the copy paper P1 is as described above.

In FIG. 4, an upper size switch 71 and a lower size switch 72 are provided in each paper feeding cassette mounting opening of the paper non-feeding device 3 and the paper non-feeding device 4. Paper empty switches 73 and 74 are provided at the inner bottom of each paper feed cassette mounting opening, respectively. Both the upper size switch 71 and the lower size switch 72 detect whether each paper feed cassette is installed or not, and turn rLOW when the device is in use.
This is a cassette-uninstalled signal generating means that generates a J-level signal and generates an rHIGHJ-level signal when the cassette is not installed. When the paper feed cassette to be used, for example, the main paper feed cassette 3A, is not installed, the contact of the upper size switch 71 is closed and a cassette non-installation signal is sent to a control circuit to be described later. The lower size switch 72 is configured to perform the same operation when the unfed paper cassette 4A is not installed. 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 copying key 55 is turned on.

Furthermore, since the upper size switch 71 and lower size switch 72 also emit 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 depending on the cassette installed. It is something to detect.

Further, paper 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 paper feed cassettes, a paper out signal is sent to a control circuit to 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 at the attachment point of the copy paper P1 of the manual paper feeder 5. This switch is a paper insertion detection device that detects whether copy paper P1 is inserted or not and issues a signal. When the copy paper P1 is placed and set on the two manual feed trays, the contact of the manual feed switch 70 is closed, and a paper insertion signal is sent to a control circuit to be described later. In this state, the manual paper feed section setting is displayed on the liquid crystal display section 62, and selection of a paper feed cassette by pressing the cassette selection key 59 is no longer accepted.

Furthermore, a manual paper feeding width detector 75 is similarly provided to detect the width size of manually fed copy paper. This paper feed width detector 75 and the vapor stop switch 1 mentioned above
A timer (not shown) detects the time that 8 is turned on during conveyance of the copy paper P, and detects the size of the manually fed copy paper.

FIG. 1 shows the overall control circuit of the device according to this embodiment. That is, the CPU 80 is a main control section and controls the entire copying machine. For the input of this CPU80,
The following devices are connected via the input interface circuit 81. Vapor stop switch 18. Input switch 82 including numeric keypad 56 and cassette selection key 59 on operation panel PA. Front cover switch 83. Other various switches and sensors necessary for copying operations 841
A manual feed switch 701 that detects the insertion of copy paper into the manual paper feed table 2A; a manual paper feed width detector 75; Copy paper empty detection device 85 and cassette not installed signal generation means 86 of the sketch paper device 3 and copy paper empty detection device 87 and cassette signal generation means 88 of the sketch paper device 4
etc. Further, the following devices are connected to the output of the CPU 80 via an output interface circuit 89.

Display device 90 such as lamp section 53 and liquid crystal display section 62 of operation panel PA and manual paper feeder 2. These are various power sources 91, various motors 92, and various solenoids 93 for the sketch paper device 3 and the sketch paper device 4.

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

Further, a signal from the paper stop switch 18 is also input to the CPU 80 via the input interface circuit 81.

The signal from the paper stop switch 18 is an ON signal that is issued to synchronize the rotation of the photosensitive drum 7 and the conveyance of the copy paper P and to feed the copy paper P from the registration roller 19 in the copying operation of the main body 1 described above. It is. This signal is counted by the counting function of the program within the CPU 80. Further, the counted value is stored in a storage device 94 externally connected to the CPU 80 at any time.

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

As shown in FIG. 5, in this embodiment, the presence of an area in the storage device 94 corresponding to the password code input using the numeric keypad 56 is checked using cpusr. Furthermore, each area is designed to store the count of the number of fed sheets corresponding to the paper feed size, and there is an area 94A for storing the copy unit price of various sizes of copy paper, and a count value for each PIN code. Areas 94B, 94C, 94D...94L are provided. At the same time, there are storage areas for storing the number of copies for each size of copy paper fed by each paper feeding device: a storage area for A4 size, a storage area for A3 size, a storage area for B4 size, and a storage area for B5 size. , a storage area for other sizes, and a storage area for total number of sheets, respectively. These storage areas are selected and the count data is stored in accordance with the above-mentioned settings of the paper feeding device used and the size of the copy paper fed by each paper feeding device. For example, the count data stored in the area for each size of copy paper is 4
It consists of 5 bits and is stored in BCD code. Further, the count data stored in the total number storage area is composed of, for example, 4 bits 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 the power is turned on 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 warming up 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 109. In step 109,
Select manual paper feeder 2 and proceed to step 113. Further, in step 103, it is checked whether or not the drawing paper cassette is installed based on the drawing paper cassette non-installation signal of the cassette non-installation signal generating means 88 in the insertion opening of the drawing paper device 4, and even if it is installed, the copy paper P3 The output of the copy paper empty detection device 87 is checked to see if the copy paper is set.

If copy paper P3 is not set, step 104
Proceed to. In step 104, the lower paper feed cassette 3A is checked in the same manner as the lower paper feed cassette 4A in step 103. If copy paper P2 is set, the process advances to step 105. In step 105, the copy paper supply lamp on the operation panel PA is turned on, and the copy paper supply lamp on the operation panel PA is also turned on.
Turn off the copy ready indicator lamp above and return to standby mode.

In this manner, when the manual paper feeder 5 is not used and the lower paper feed cassette 3A and the lower paper feed cassette 4A are not installed or the copy paper P2 is empty, replenishment of the copy paper P2 is prompted. In step 103, if the lower paper feed cassette 4A is installed, the process proceeds to step 106. In step 106, it is checked whether the lower paper feed cassette 3A is installed, and even if it is installed, the copy sheet empty detection device 85 checks whether copy paper P2 is set. If copy paper P2 is set, the process advances to step 108.

In step 108, it is checked whether the lower sheet feeding device 4 is currently selected by the cassette selection key 59.

If the lower paper feeder 4 has been selected, the process advances to step 110. In step 110, the lower paper feeding device 4 is selected, and the process proceeds to step 113. In step 106, if the lower paper feeder 3 is not installed, step 108 is skipped and the process proceeds to step 110. Said step 104
If the lower paper feeder 3 is installed in step 108, or if the lower paper feeder 4 is selected in step 108, the process advances to step 111. In step 111, the lower paper feeding device 3 is selected, and the process proceeds to step 113. In this manner, when the lower paper feeder 3 and the lower paper feeder 4, or any one of them, is not installed, selection of the paper feeder that is not installed is prohibited.

In step 113, the size of the copy paper P in the selected paper feeding device is displayed and the storage area corresponding thereto 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 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. In step 114, the main body 1
Check to see if there is any abnormality inside. 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 in the selected paper feeding device rotates to start feeding paper, and in step 1
Proceed to step 18. In step 118, a feed roller is rotated to convey the picked up copy paper P,
Proceed to step 119. In step 119, the paper stop switch 18 is turned on after a predetermined period of time has passed since the feed roller conveys the copy paper P, and step 120
Proceed to. In step 120, "1" is subtracted from the display content of the sheet number display section 54 on the operation panel PA, and in step 121
Proceed to. In step 121, data stored in each storage area in the storage device 94 corresponding to the supply device used and the size of the copy paper is read, and in step 122
Proceed to. In step 122, “1” is added to the read data.
” is added, and the process proceeds to step 123. In step 123, the added data is stored again in each storage area from which it was read, and the process proceeds to step 124. In step 124, the registration roller 191 is rotated to convey the copy paper P onto the transfer charger 11 that performs image transfer, and the process proceeds to step 125. The step 120 is a step 121.
to 124, or before or after that. 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, various solenoids, various motors, various power supplies, and various lamps are turned off, and the system returns to the standby state. If the set number of sheets has not been fed in step 125, the process returns to step 117.

It is also possible to perform steps 120 to 123 in parallel to step 124.

Next, using the flowchart shown in FIG. 8, the area setting operation of the storage device 94 corresponding to the password code, the display of the cumulative number of sheets conveyed by each conveyance roller, and the copying fee operation for each size will be explained.

In FIG. 8(a), the storage device 9 mainly corresponds to the password code.
The storage area setting operation in step 4 will be explained. If the operator inputs the password from the standby state, the process advances to step 130. In step 130, it is checked whether a password code (for example, 3317) has been input by the operator from the numeric keypad 56.

If the PIN code has been input, the process advances to step 131, and if it has not been input, step 130 is repeated.

In step 131, the CPU 80 inquires whether the storage area for the password code entered by pressing the numeric keypad 56 exists in the storage device 94. If it exists in the storage device 94, the process advances to step 132; if it does not exist, the process returns to step 130. In step 132, a storage area (for example, PIN code area 94D) corresponding to the PIN code in the storage area 94 is set, and the process proceeds to step 133. In step 133, it is checked whether the copy key 55 has been inserted. If the copy key 55 is inserted, step 1
The process proceeds to step 34, and if it is not inserted, the process proceeds to step 135. In step 135, it is checked whether a predetermined time (for example, 60 seconds) has elapsed since the storage area was set in step 132.

If the predetermined time has elapsed, the process returns to the standby state, and if the predetermined time has not elapsed, the process returns to step 133.

In step 135, as described above for one copy operation, the stored data is read from the set storage area of the storage device 94, and "1" is added to the data.
Store the pig in the same storage area again, step 136
Proceed to. In step 136, it is checked whether or not the set number of copies has been completed. If the copying is completed, the process returns to the standby state, and if the copying is not completed, the process returns to step 134.

Next, the copying fee display operation corresponding to the PIN code will be explained with reference to FIG. 8(b). Steps of the same operation as in FIG. 8(a) are given the same numbers and their explanations will be omitted. When the storage area corresponding to the password of the storage device 94 is set in step 132, the process proceeds to step 140. Step 1
At 40, it is checked whether the information key 63 is pressed. Information key 6
If 3 is inserted, the process proceeds to step 141; if not, the process proceeds to step 142. In step 142, a predetermined period of time (for example, 60
Check whether sec) has elapsed. If the predetermined time has elapsed, the process returns to the standby state; if the predetermined time has not elapsed, the process returns to step 140. In step 141,
First, the data stored in the PIN code area 94A is read out and displayed on the liquid crystal display section 62 as shown in FIG.
Furthermore, the data stored in the set PIN code storage area is displayed as shown in FIG. 10, and step 143
Proceed to. In step 143, it is checked whether or not the clear key 56A has been inserted. If the clear key 56A has been inserted, the process returns to the standby state; if not, the process proceeds to step 144. In step 144, it is checked whether a predetermined period of time (for example, 30 seconds) has elapsed. If the predetermined time has elapsed, the process returns to the standby state, and if the predetermined time has not elapsed, the process returns to step 143.

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 count value of the count data, it is displayed on the liquid crystal display section 62 on the operation panel PA, so no extra parts are required. Further, if the signal from the paper stop switch 18 is counted, it is possible to obtain a more accurate paper feed count value since the copy paper P is at a position where the probability of jamming is low. The probability of a jam is low because the vapor stop switch 18 is located upstream of the copy paper transport path 17, and the number of transport rollers used up to that point is small. Note that the present invention is not limited to the above-mentioned embodiment, and the number of sheets conveyed by each conveyance roller is displayed at one time, but as shown in FIGS. The number of sheets conveyed by each conveying roller may be displayed each time the information key 63) is pressed, or the number of sheets may be displayed sequentially at fixed time intervals (for example, 5 seconds).

[Effects of the Invention] As detailed above, according to the present invention, it is possible to store the number of sheets of image formed for each paper size for each user, and to display the number of sheets to be transported and the copying fee calculated from the stored data. Therefore, it is possible to easily and accurately grasp the copying fee for each user of an image forming apparatus equipped with a plurality of paper feeding devices.

[Brief explanation of the drawing]

1 to 10 show an embodiment of the present invention,
Fig. 1 is a block diagram of the control device, Fig. 2 is a schematic cross-sectional view of the copying machine, Fig. 3 is a front view of the operation panel, Fig. 4 is a schematic cross-sectional view of the paper feeding device, and Fig. 5 is a schematic cross-sectional view of the copying machine. 6 is the first half of the flowchart of the operation of the paper feeding device, FIG. 7 is the second half of the flowchart of the operation of the paper feeding device, and FIG. 8(a) is the flowchart of the operation of setting the storage area corresponding to the input of the PIN code. , FIG. 8(b) is
A flowchart of the operation of displaying data in the storage area corresponding to the PIN code. Figure 9 is a front view showing the copying fee display on the LCD display. Figure 10 is a copy of the storage area according to the PIN code on the LCD display. 11(a) to 11(f) are front views showing copy charges according to size. FIGS. 11(a) to 11(f) are front views of a display device displaying data in a storage area in another embodiment of the present invention. 3... Main paper feed device, 4... Draft paper device, 5... Manual paper feed device, 18... Paper stop switch,
56... Numeric keypad 70... Manual feed switch, 62.62A... Liquid crystal display section, 63... Information key 71... Upper size switch, 72... Lower size switch, 80... CPU
, 94... Storage device q Figure 9 (Q) Figure (b) Figure (cL) Figure (b < C) Figure tcL) Figure (ε) Figure (Ha

Claims (1)

[Scope of Claims] In an image forming apparatus that supplies image forming materials of a plurality of sizes to an image forming section, and forms an image on the image forming materials supplied by the image forming section, an operator involved in image formation an identification means for identifying the material, a detection means for detecting the image forming material related to the image formation after being identified by the identification means, and a counting means for counting the number of times of detection according to the detection by the detection means; a first storage means for storing data counted by the counting means according to identification by the identification means; a second storage means for storing data of an image forming fee related to the image formation; a reading means for reading data stored in the storage means of No. 2; a calculating means for performing a predetermined calculation on each data read by the reading means; and a display means for displaying the content calculated by the calculating means. An image forming apparatus comprising: