JP2004168514A - Image forming apparatus and holding member for recording medium - Google Patents

Abstract

An object of the present invention is to detect a remaining amount of a roll-shaped recording medium.
An EEPROM is attached to a spool (or flange) to detect the remaining amount of roll paper. In the EEPROM, data (paper type, unused paper length) input by the user from the operation panel of the main body and the host PC is recorded, and the number of prints is subtracted therefrom to calculate the remaining amount. I do. For genuine new products, information is automatically set when a product code is entered. The roll paper and the spool are always managed integrally. When the roll paper is removed from the spool, the information is reset. Therefore, an automatic lock mechanism is provided to prevent the roll paper from being accidentally detached from the spool. When the roll paper is removed from the spool, the paper is once mounted on the printer, the current paper information is recorded on the roll paper, the information in the EEPROM is reset, and the spool is released.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a printer for printing on a roll-shaped recording medium, and more particularly to a remaining amount management unit for a detachable roll-shaped recording medium.
[0002]
[Prior art]
Conventionally, the remaining amount management of a roll-shaped recording medium is performed by detecting the weight or diameter of the roll-shaped recording medium and calculating the remaining amount (JP-A-06-115789, JP-A-08-113402) and printing as described below. The method is largely divided into a method of subtracting the used amount in printing from the previous remaining amount (initial value) and a method of updating a new remaining amount.
[0003]
As a method for updating the remaining amount, there is the following conventional example in which information is first stored in a roll-shaped recording medium.
[0004]
In Japanese Patent Application Laid-Open No. Hei 10-25046, optical information (identifier) is stored inside a core tube of roll paper, the individual roll paper is identified from this information, and the remaining amount of each roll paper is stored in a roll paper holding device. There is disclosed a technique for managing the remaining amount by having a managing unit for managing.
[0005]
Japanese Patent Application Laid-Open No. 2000-313558 discloses a recognizing means for recognizing information (information about a medium and an initial length) on a core tube of roll paper with a barcode label or the like, a means for reading information, and an ID provided in a printer body. And a managing unit for storing and managing the remaining amount by associating the remaining amount information with the medium remaining amount information.
[0006]
Japanese Patent Application Laid-Open No. 2001-270192 discloses a technique in which an EEPROM is provided in a core tube of roll paper, a remaining amount and an identifier are stored, and the remaining amount is stored and updated by reading and writing the EEPROM.
[0007]
In JP-A-11-091091, a code (medium type, remaining length) is printed on the leading portion of roll paper at the time of shipment, the code is read, the leading portion is cut before printing, and used again. A technique for printing a code with an updated residual length is disclosed. Also, here, as another method, a technique of storing a code by attaching a print or a sticker to an end of a core tube of roll paper is disclosed.
[0008]
These all store information (initial values) at the time of shipment. Further, JP-A-10-25046 and JP-A-2000-313558 cannot update information (initial value) of a roll-shaped recording medium.
[0009]
Next, JP-A-10-254200 discloses a technique of remaining amount management in which information (ID and remaining amount) is stored in a unit for storing a roll-shaped recording medium without storing information in the roll-shaped recording medium. No. 2000-169012.
[0010]
In Japanese Patent Application Laid-Open No. H10-254200, an EEPROM is provided in a cartridge for holding and storing roll-shaped recording paper, the remaining amount is stored, and the remaining amount is managed. Here, a fixed value (100 m) is written as the initial value of the remaining amount.
[0011]
In Japanese Patent Application Laid-Open No. 2000-169012, ID information is stored in a paper magazine that holds and stores roll-shaped recording paper, and the remaining amount is managed on the printer side by storing the remaining amount corresponding to the ID. Here, the initial value of the remaining amount is set by using a known value or by rewinding and measuring the length.
[0012]
[Problems to be solved by the invention]
The conventional method for managing the remaining amount of a roll-shaped recording medium as described above has the following problems.
[0013]
Problem 1) In the method of detecting the weight and diameter of the recording medium and calculating the remaining amount (JP-A-06-115789 and JP-A-08-113402), there are differences in the size and weight of the core tube, the thickness of the medium, and the like. Since there is a limit in the measurement accuracy of the recording medium, there is a problem that it is difficult to accurately manage the remaining amount.
[0014]
Problem 2) In a method in which the latest remaining amount is not stored in a recording medium (Japanese Patent Laid-Open Nos. Hei 10-25046, 2000-313558, and 2000-169012), a recording medium that has been used once is transferred to another printer. When used, the remaining amount is not known, and there is a problem that the remaining amount information cannot be inherited even if the recording medium printed by another printer is returned to the original printer again, so that the remaining amount cannot be managed.
[0015]
Problem 3) In a method of storing information on a recording medium at the time of shipment (JP-A-10-25046, JP-A-2000-313558, JP-A-2001-270192, and JP-A-11-091091), generally available rolls are used. Normally, no information is stored in the shape recording medium, and there is a problem that the remaining amount cannot be managed when using such a recording medium.
[0016]
Problem 4) In a method of printing remaining amount information on a recording medium at the time of shipping or use (at the time of unloading) (Japanese Patent Laid-Open No. 2000-169012), a portion where the remaining amount information is written cannot be used for printing. Is wasted.
[0017]
Problem 5) In a method of storing remaining amount information in a paper magazine or a cartridge (Japanese Patent Application Laid-Open No. H10-254200 and Japanese Patent Application Laid-Open No. 2000-169012), a recording medium can be easily used alone without removing a paper magazine or a cartridge from a printer device. Because it can be removed, the paper magazine or cartridge can be easily separated from the recording medium.Therefore, when another recording medium is loaded into the paper magazine or cartridge, the remaining amount can be managed when using the recording medium again after removing it. There is a problem that can not be. Further, even when the recording medium is loaded in a paper magazine or a cartridge and is removed from the printer, the recording medium can be easily removed outside the printer.
[0018]
Problem 6) In a method of storing remaining amount information in a paper magazine or a cartridge (Japanese Patent Application Laid-Open No. H10-254200 and Japanese Patent Application Laid-Open No. 2000-169012), a paper magazine or a cartridge and a recording medium are mounted on the same printer or another printer. In this case, since the weight of the paper magazine or cartridge is large, the operability is poor, and when using a plurality of different recording media, it is necessary to facilitate a plurality of relatively expensive paper magazines or cartridges. Generally, paper magazines and cartridges are premised on loading and unloading recording media while they are installed in the printer unit.Therefore, they are usually expensive, heavy, and only as many as can be built into the printer. It is.
[0019]
Problem 7) In a method in which information is not stored in a recording medium at the time of shipment (JP-A-10-254200 and JP-A-2000-169012), a method of initializing information at the time of shipment is required. However, there is a problem that there is no versatility due to the input as "?"
[0020]
Recently, printers have been used in various fields, so the types of roll-shaped recording media have been increasing, and the use of multiple printers in one place has been increasing due to the miniaturization and cost reduction of printers. Therefore, the above problems 1) to 7) become remarkable.
[0021]
[Means for Solving the Problems]
Therefore, in order to solve the above-mentioned problem, an image forming apparatus of the present invention (particularly, an image forming apparatus that forms an image on a drawn-out portion while pulling out a detachable roll-shaped recording medium) is provided in the image forming apparatus. A holding member (spool, flange, or the like) attached to the recording medium for holding the recording medium, and a readable / writable member arranged on the holding member for storing information such as the remaining amount and type of the recording medium. Storage means, a usage amount counting means for counting the usage amount of a recording medium used in a printing operation or the like, and a remaining amount for counting a new remaining amount from the remaining amount which is information in the storage means and the usage amount It is characterized by comprising counting means and updating means for updating the remaining amount as information in the storage means with the new remaining amount at a certain time. With this configuration, by storing information such as the remaining amount and the type of the recording medium in the holding member, it is possible to use various types of recording media that are general for the image forming apparatus and easily manage the remaining amount of the recording medium individually. it can. Further, according to this configuration, the holding member is first attached to the roll-shaped recording medium and stored in the image forming apparatus, and when detached from the image forming apparatus, it is easy to remove the roll-shaped recording medium with the holding member attached. Since the recording medium and the holding member are integrally treated, continuity of the remaining amount management of the recording medium can be maintained, and the recording medium and the holding member can be integrally attached to and detached from the same image forming apparatus or another image forming apparatus. And facilitate exchange.
[0022]
In particular, in order to solve the above problem 7), the image forming apparatus according to the present invention further includes a reset unit configured to reset the storage unit when the holding member is removed from the recording medium, Determining means for determining whether the recording medium is new or reusable when the recording medium with the holding member attached to the image forming apparatus is in a reset state; Input means for inputting an identifier such as a product code of the recording medium when it is determined that the recording medium has been determined; determining means for determining information (remaining amount, type, etc.) of the recording medium from the input identifier; The information (remaining amount, type, etc.) determined in (1) is additionally provided with the updating unit for updating the information (remaining amount, type, etc.) in the storage unit. With this configuration, a new recording medium has a holding member attached for the first time, and the storage means in the holding member at this time is in a reset state. In this reset state, the image forming apparatus determines that the recording medium is new, and the product code When an identifier such as is input, information (remaining amount, type, etc.) of the recording medium is determined from the identifier, and is updated to the reset storage means, so that the initial value of the information of the recording medium can be easily set.
[0023]
Further, in order to surely solve the problem 5) of the problem, the image forming apparatus of the present invention further includes a lock mechanism for locking the holding member and the recording medium so that the recording medium cannot be separated from the image forming apparatus. When the recording medium with the holding member is mounted in the image forming apparatus, the lock mechanism is automatically locked, and when the recording medium is mounted in the image forming apparatus, an operator's instruction or the lock is performed when the recording medium is empty. It is characterized by having additional control means for canceling. With this configuration, when the recording medium and the holding member are integrated and mounted on the image forming apparatus, if the recording medium and the holding member are in a locked state, the recording medium is kept in a locked state, and if the recording medium is new, the locked state is used. During the lock state, the lock state is maintained unless there is an operator's unlock instruction, so the lock state is maintained even when the recording medium and the holding member are removed from the image forming apparatus as long as the recording medium has a remaining amount, Since the recording medium and the holding member cannot be separated, the remaining amount management can be performed continuously. When the recording medium is empty, the locked state is released, so that the empty core tube of the recording medium can be removed and the holding member can be used again.
[0024]
In order to solve the above problems 4) and 5), the image forming apparatus according to the present invention further comprises a lock mechanism and a lock set / release control means, wherein the recording medium is not empty and is locked by an operator. A print unit for printing information such as a remaining amount and a product code on the recording medium when a release instruction is issued is provided. With this configuration, as long as there is no lock release instruction, even if the recording medium and the holding member are detached from the image forming apparatus by the unload instruction, it is not necessary to print information on the print surface of the recording medium, and waste of the recording medium can be reduced. In addition, since information (remaining amount, product code, etc.) is printed on the recording medium when the operator releases the lock, the information (remaining amount, product code, etc.) printed on the recording medium separated from the holding member is used. To manage the remaining amount again.
[0025]
Further, in order to ensure the solution of the problem 5) of the problem, the lock mechanism holds the locked state in a locked state even when the recording medium provided with the holding member is removed from the inside of the image forming apparatus. It is a mechanism.
[0026]
Further, in connection with the problem 7), after the holding member and the recording medium unlocked by the control means are removed from the image forming apparatus, the holding member is separated from the recording medium when the holding member is separated from the recording medium. The information stored in the storage means of the member is reset.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
[0028]
In the embodiment, an image forming apparatus is described as an ink jet printer (hereinafter, referred to as a printer). Further, in the embodiment, the roll-shaped recording medium is abbreviated as roll paper, but the material is not limited to paper, but may be a film or a cloth, and the type of paper is not limited. In this embodiment, the roll paper holding member is described as a rod-shaped member (hereinafter, referred to as a spool). However, the present invention is not limited to this, and a disk-shaped member (flange) may be formed on both sides of the roll paper. It is also possible to attach it to a holding member, or a holding member having another simple shape. Further, the printer is not limited to the ink jet printer, but may be realized by a printer of another system (a thermal transfer system, an electrophotographic system, or the like) using roll paper.
[0029]
[Main internal configuration of printer]
The main internal configuration of the printer will be described with reference to FIG. FIG. 1 is a block diagram of a main internal configuration of the printer.
[0030]
In FIG. 1, reference numeral 101 denotes a printer according to the present embodiment. Reference numeral 100 denotes an operator for transferring image data to the printer 101, transmitting various parameters, giving instructions for printing, etc., and communicating the operator from the printer 101 to the operator. It is a host computer (so-called personal computer).
[0031]
The main components of the printer 101 include a printing unit 105 that is a mechanism for printing, a control unit 103 that controls printing and the entire printer, a supply unit 102 that stores and supplies roll paper, and performs various commands from an operator. And an operation unit 104 having a display unit for notifying the operator of the situation and instructions.
[0032]
The main configuration of the supply unit 102 is a roll paper 110 as a roll-shaped recording medium, a spool 108 integrated through a core tube of the roll paper 110, rotation control of the spool 108, and access control of the spool 108 to the EEPROM 109 ( A roll control unit 111 that controls the spool 108, such as lock control of a lock mechanism (described later with reference to FIG. 5) in the spool 108, and a supply unit 110 that supplies the roll paper 110 with the spool 108, will be described later with reference to FIG. An opening / closing cover 106 that is opened and closed when the cassette is taken in and out, a cover lock unit 107 that controls a mechanism that locks when the opening / closing cover is closed, and a roll paper 110 that is pulled out and cooperated with the transport unit 130 to set the top of the roll paper. It comprises a transport mechanism (not shown in FIG. 1, described later with reference to FIG. 3) and the like.
[0033]
The main configuration of the printing unit 105 includes a recording head 126 for ejecting ink droplets toward roll paper in accordance with image data, a carriage 125 on which a plurality of recording heads are mounted and which reciprocates in the lateral (width) direction of the roll paper. The main scanning unit 127 including a driving source for moving the carriage 125 and a mechanical mechanism for forming a movement path, and various mechanisms (for example, from the discharge nozzle of the print head 126 to the discharge nozzle of the print head 126 to maintain the discharge stability of the print head 126). , A wiping mechanism for cleaning the ejection surface of the recording head 126, a member for receiving preliminary ejection (ejection outside the image area), and a capping mechanism for preventing the ejection nozzles of the recording head 126 from drying. ), A path for supplying each color ink to each recording head 126, and a mechanism such as an ink tank. The ink supply unit 129 to consist of the transport portion 130, and the like having transport mechanism and the drive source feeding the roll paper (motor).
[0034]
The control unit 103 converts the image data received from the host computer 100 into a drive signal for the recording head 126 and converts the image data received from the host computer 100 into an image for driving the recording head 126. The data processing unit 123 includes a print sequence control unit 124 that controls the entire printer 101 to execute a print sequence.
[0035]
The main configuration of the roll paper management unit 113 is a new / old determination unit 116 that determines whether the roll paper 110 is new or has been used once, and information (remaining amount, type, etc.) of the roll paper 110 when the roll paper 110 is new. , A usage amount counting unit 119 that counts the usage amount of the roll paper 110 used for printing or the like based on the transport control information of the printing sequence control unit 124, and a roll based on the usage amount. A remaining amount counting unit 121 that counts the remaining amount of the paper 110, an updating unit that reads and updates information (product code, remaining amount, type, and the like) of the roll paper 110 from the EEPROM 109 of the spool 108 via the roll control unit 111. 112 etc. The remaining amount / type determining unit 114 includes a LUT unit 115 storing a table of roll paper product codes, initial amounts, types, and the like. The new / old determining unit 116 includes a product code register 117. The usage counter 119 has a usage register 120, and the remaining counter 121 has a remaining register 122. Further, a type register 118 is provided in the roll paper management unit 113.
[0036]
A main part of the control unit 103 is generally constituted by an electric board. On the electric board, a ROM storing various programs and various data such as a print sequence and roll paper management, and a CPU for executing the programs are stored. A RAM for storing variable data necessary for executing a program, a RAM for storing image data, a dedicated IC for processing image data, an input / output port and a driving circuit for each control target, and storing data even when the power is turned off. Or a RAM with backup, a calendar IC for managing the date and time, a battery for the calendar IC, and an I / F circuit for controlling an interface with an external device such as the host computer 100.
[0037]
The registers 117, 118, 120, and 122 are allocated and used on a readable and writable RAM, and the LUT is basically allocated only on a read-only ROM, but is allocated on an EEPROM or a RAM with a backup. You can also create a new table. In addition, each unit can be realized by software, and each unit can be constructed by dedicated hardware.
[0038]
[Appearance of printer]
FIG. 2 is a perspective view showing the appearance of the printer 101. FIG. 1 is a power switch for AC, 2 is an operation panel (including the operation unit 104 in FIG. 1), 3 is a discharge port from which the printed roll paper 110 comes out from the top, and 4 and 5 are the roll paper 110. An upper cassette and a lower cassette as entrances for storing.
[0039]
In FIG. 1, one roll paper is set in the supply unit 102. However, in FIG. 2, since the upper cassette 4, the lower cassette 5, and the two-stage cassette are provided, two roll papers 110 (see FIG. (Corresponding to the roll paper 24 and the roll paper 29). The printer shown in FIG. 2 can be realized by adopting a configuration having two supply units 102 shown in FIG. The upper cassette 4 and the lower cassette 5 correspond to the opening / closing covers 106 of the respective supply units 102.
[0040]
[Roll paper path]
The outline of the paper path will be described with reference to FIGS.
[0041]
FIG. 3 illustrates a two-stage cassette as in FIG. 3, upper and lower cassettes 4, lower cassette 5, various rollers for feeding and conveying (cassette A roll feeding roller 21, cassette B roll feeding roller 26, roll paper feed roller 20, feed roller 15), and paper discharge Roller 14, a pressure roller 12 and a feed roller motor (not shown) for driving each part roll, and each sensor part (pressure roller sensor 11, ink jet sensor 16, spur Sensor 17, a skew sensor 18, a cassette A paper sensor 19, a cassette B paper sensor 25, a spool A sensor 22, a spool B sensor 27, etc.). Carry and discharge paper.
[0042]
The sheet feeding operation will be described. When there is a load command of the roll paper 24 (or 29) from the upper cassette 4 or the lower cassette 5, the control unit 103 causes the feed roller motor (not shown) in the supply unit 102 to rotate forward. The spur unit (the unit including the spur roller 13) and the pressure roller unit (the unit including the pressure roller 12) are released so that the roll paper 24 (or 29) does not deviate from the paper path.
[0043]
The roll paper 24 (or 29) set in the upper cassette 4 (or the lower cassette 5) is fed by the cassette A roll paper feed roller 21 (or cassette B roll paper feed roller 26), the roll paper feed roller 20, and the feed roller 15. Conveyed.
[0044]
When the eject sensor 16 detects the leading end of the roll paper and turns on, the spur unit 13 is pressurized. When the leading end of the roll paper is carried by the eject sensor 16 by a predetermined amount, the carrying operation is temporarily stopped.
[0045]
Next, in order to position the leading end of the roll paper while removing the slack of the roll paper, the feed roller motor is rotated in the reverse direction, the leading end of the roll paper turns off the eject sensor 16, and then the specified amount of paper is rewound, and the transport operation is started. When stopped, the pressure of the pressure roller 12 and the paper width detection are performed. In the paper width detection, a print position sensor (not shown) detects and recognizes the left end and the right end of the paper.
[0046]
Thereafter, after the roll paper is conveyed for the leading end margin, the printing operation is started. The paper is transported during printing by controlling the rotation of the feed roller 15 in accordance with the printing mode.
[0047]
Explaining the discharge operation, if the cutter operation of the roll paper is selected, the paper is conveyed to the cut position after printing and cut by a cutter (not shown). Thereafter, the paper on the roll side is transported by about 100 mm, and the cut paper is extruded. The discharged sheets are stacked face-down on a discharge tray. The roll paper on the platen rewinds to the set position of the upper cassette 4 (or the lower cassette 5).
[0048]
In the case of continuous continuous printing on roll paper (that is, continuous printing of various images without cutting), the BJ print head 10 (recording in FIG. 1) enters a pause state for waiting for image data transfer without performing a cutting operation. Cleaning (equivalent to the head 126).
[0049]
[Printer operation overview]
The outline of the printing operation of the printer 101 will be described with reference to FIGS.
[0050]
The printer 101 receives a print command and image data from the host computer 100 and stores them in a buffer memory (not shown) in the image data processing unit 123, and the image data processing unit 123 converts the data into driving data corresponding to the recording head 126. The print sequence control unit 124 conveys the head of the roll paper 110 from the supply unit 102 to a position where recording can be performed by the recording head 126, stops the roll paper 110, and starts printing. Initialization processing for initializing each part of the printing unit, HP output processing (driving the main scanning unit 127 to move the carriage 125 to the home position HP), and recovery processing of the recording head 126 (driving the recovery unit 128) The ink is sucked from the recording head 126 and the wiping member in the recovery unit 128 The main scanning section 127 is driven, and the carriage 125 is driven to scan the area wider than the printing width by one scan in a direction (main scanning direction) orthogonal to the transport direction of the roll paper 110, and the one scan is performed. During scanning, a linear scale (not shown) provided in the main scanning direction is read and generated by an encoder (not shown) mounted on the carriage 125 and stored in a buffer memory in the image data processing unit 123. The read drive data is read and sent to the recording head 126. The recording head 126 prints on the roll paper 110 according to the drive data, and forms an image for one scan. When the image formation for one scan is completed, the print sequence control unit 124 drives the conveyance unit 130 to convey the roll paper 110 by a predetermined conveyance amount, and performs printing for the next scan in the same manner. Similarly, the image data is received up to the print length designated by, and the image is printed and formed on the roll paper 110.
[0051]
The print mode here is not limited to one-pass printing, but also multi-pass printing such as two-pass or four-pass printing. The transport amount of the roll paper 110 is set according to each printing mode, and the processing of the image data processing unit 123 is performed. Can be handled by converting into the drive data according to the print mode.
[0052]
[spool]
The configuration of the spool 108 will be described with reference to FIG. FIG. 4 is a diagram for explaining the relationship between the spool 108 and the roll paper 110. The left-hand drawing shows a state in which the roll paper 110 with the spool 108 is set (or removed) in the upper cassette 4 or the lower cassette 5. The figure on the right shows the state when the spool 108 is set (or removed) on the roll paper 110, and the figure in the circle is hidden by the roll paper 110 from above, but the partial structure of the spool 108 is enlarged. In the figure, the next figure in the circle is an enlarged view of one end, and the figure in the last circle is an enlarged view of the end viewed from the back.
[0053]
In FIG. 4, the spool 108 has a rod-like shape smaller than the inner diameter of the core tube and longer than the width of the roll paper in order to pass through the core tube of the roll paper 110. A bearing 45 serving as a support, a guide 46, a gear 44 for transmitting rotation, and an automatic lock unit 41 (consisting of 40, 47, 48, 49) for fixing the operation of the manual lock unit (details will be described later with reference to FIG. 5). And an electric board 131 on which the EEPROM 109 is mounted (details will be described later with reference to FIG. 6). Here, the manual lock portion includes a lever 40, a connecting portion 49 that transmits the operation of the lever, a spring 48, and a pressing member 47 that is in contact with the inner wall of the core tube at the head of the connecting portion.
[0054]
The setting of the roll paper 110 on the printer unit 101 will be described with reference to FIG.
[0055]
When the spool 108 is set on the roll paper 110, when the lever 40 of the manual lock portion is gripped, the action is transmitted by the transmission portion 49, the spring 48 is pulled and extended, and the pressing member 47 is pulled inward. When the spool 108 is inserted until the end of the core tube hits the positioning member 50 and the lever 40 of the manual lock portion is released, the spring 48 contracts and the pressing member 47 is pressed against the inner wall of the core tube. Thus, the spool 108 is fixed to the roll paper 110.
[0056]
After one of the cassettes 4 and 5 is pulled out of the roll paper 108 attached with the spool 108 and set so that the bearings are placed on both ends of the cassette, the cassettes 4 and 5 are pushed into their original positions.
[0057]
The automatic locking of the spool will be described with reference to FIGS. FIG. 5 is a schematic view of the spool lock mechanism. The left-side view shows a state in which the auto-lock is released, and the right-side view shows a state in which the auto-lock is turned on. FIG. 6 is a block diagram of a main internal configuration related to the storage means of the spool. The main configuration of the spool 108 set in the supply unit 102 (corresponding to the cassette 4 or 5) and the internal configuration of the roll control unit 111 are shown. Is shown.
[0058]
In FIG. 5, reference numeral 41 denotes an automatic lock unit that locks the manual lock lever 40 so as not to be gripped, 42 denotes an opening for transmitting lock on / off to the automatic lock unit 41, and 43 denotes an access to the EEPROM 109. This is an opening for making. Reference numerals 40 and 50 are the same as those in FIG.
[0059]
6, in the spool 108, an optical communication unit 134 (including a light receiving unit and a light emitting unit), a memory control unit 132, an electric board 131 on which the EEPROM 109 and the battery 133 are mounted, and a manual lock unit (a mechanical mechanism) 4 includes an automatic lock unit 41, and an optical communication unit 135 and a lock control unit 136 in the roll control unit 111. The battery 133 is used as a power source for the memory control unit 132, the optical communication unit 134, and the like. The opening 43 is opened so that light can pass therethrough in accordance with the positions of the light receiving unit and the light emitting unit of the optical communication unit 134 and the light emitting unit and the light receiving unit of the optical communication unit 135. The opening 42 is also opened so that the mechanical members that operate the automatic lock unit 41 and the lock control unit 136 operate.
[0060]
The auto-lock operation is performed by opening the auto-lock unit 41 from the unlocked state (the left state in FIG. 5 in which the lever 40 can be operated) by using a mechanical mechanism in the lock control unit 136 through the opening 42. 5, the auto lock portion 41 is protruded, and the lever 40 is set in a locked state in which the lever 40 cannot be operated as shown on the right in FIG. From this locked state, when the lock control unit 136 pushes the automatic lock unit 41 again through the opening 42, the automatic lock unit 41 is retracted and the lock state is released. Note that the mechanical mechanism in the lock control unit 136 can be constituted by a mechanism that slides a rod-shaped member using a solenoid or the like.
[0061]
An access method to the EEPROM 109 in the spool 108 will be described with reference to FIGS. When reading information (remaining amount, type, product code, etc.) of the roll paper 110 from the EEPROM 109, the memory control unit 132 reads information (remaining amount, type, product code, etc.) from the EEPROM 109, and stores the information in the optical communication unit. The optical signal is converted into an optical signal via 134, the optical signal passes through the opening 43, is received by the optical communication unit 135 in the roll control unit 111, is converted into an electric signal, and is transmitted to the control unit 103. Information (remaining amount, type product code, etc.) is sent and written to each of the registers 122, 118, 117. Conversely, when writing the information of the roll paper 110 to the EEPROM 109, the information (remaining amount, type, and product code) of each of the registers 122, 118, and 117 in the control unit 103 is transmitted to the optical communication unit 135 via the update unit 112. The information is converted to an electric signal through the optical communication unit 135, and the electric signal is converted into an optical signal. The optical signal passes through the opening 43, is received by the optical communication unit 134 in the spool 108, and is converted into an electric signal. Then, information (remaining amount, type, product code) is written into the EEPROM 109 via the memory control unit 132.
[0062]
Here, the access to the EEPROM 109 has been described using the optical communication using the optical communication units 134 and 135. However, the present invention is not limited thereto. For example, wireless communication using an electromagnetic wave or a rotary electrode (a brush-like contact and a ring-like contact) using a contact method may be used. Or the like). In particular, in the case of the contact type, the memory control unit 132 is provided on the roll control unit 111 side, and the optical communication unit 134 is not required, so that the battery 133 is not required, and the EEPROM 109 is the main configuration. In the case of the electromagnetic wave method, the battery 133 can be omitted by supplying energy from the electromagnetic wave.
[0063]
The manual lock portions (40, 47, 48, 49) utilize friction, but are not limited to this. A mechanism for inserting and removing protrusions at both ends of the roll paper is provided so that the roll paper can be moved in the axial direction. It is also possible to adopt a structure that does not fall out.
[0064]
Further, the automatic lock section 41 is a mechanism for locking the operation of the lever 40 of the manual lock section. However, the present invention is not limited to this, and it is also possible to provide a separate mechanism independently of the manual lock section.
[0065]
[Description of operation]
The main operation of the printer according to the embodiment of the present invention will be described with reference to the flowcharts of FIGS.
[0066]
First, the flow of the main process will be described with reference to FIG. 8. When the power is turned on by pressing the power switch 1 or the like and started, the control unit 103 performs various operations such as initialization of the work RAM and the I / O unit. (STEP 1), and then performs an error detection process such as a diagnosis function of each unit in the printing unit 105, the supply unit 102, the operation unit 104, the control unit 103, and the like to determine whether or not there is an error. Then, if there is an error (STEP 2), each error processing (waiting for the operator's processing and automatic return processing by displaying an error message) is performed (STEP 3), and the processing returns to STEP 2. On the other hand, if there is no error, it is determined whether or not the roll paper 110 has been set in the supply unit 102. If not, the roll paper setting process is performed (specifically, an error message indicating that roll paper has not been set is displayed. Then, the cover lock 107 that locks the opening / closing cover 106 of the supply unit 102 is released and unlocked, and the operator is waiting for the spool 108 to be attached to the roll paper 110 and set.) STEP 2 Return to On the other hand, when the roll paper 110 is set, the open / close cover 106 of the supply unit 102 is locked by the cover lock unit 107 so that the roll paper 110 cannot be removed from the supply unit 102 (STEP 6), and the roll paper 110 is held. The information (type, remaining amount, product code, etc.) stored in the EEPROM 109 of the spool 108 is read out (STEP 7) and stored in each register (type register 118, remaining amount register 122, product code register 117) (STEP 8). The old / new determining unit 116 determines whether the roll paper 110 is new based on whether the stored information is cleared (STEP 9). New article processing (details will be described later) is performed (STEP 10). Then, the carriage 125 is moved to adjust the position such as setting the home position, and the recording head 126 is subjected to the recovery processing by the recovery unit 128, and the communication permission processing with the host computer 100 and the activation processing of the operation unit 104 are performed. A standby process is performed (STEP 11), and an instruction from the operator via the host computer 100 or the operation unit 104 is waited (standby state) (STEP 12).
[0067]
When there is a command from the operator via the host computer 100 or the operation unit 104, the contents of the designation are determined (STEP 13). If the command is a print command (instruction to start printing), the printing process (for details, see (To be described later) (STEP 14), and returns to the command waiting (STEP 12) again. If the command is an unload command (an instruction to remove roll paper), load processing (to be described in detail later) is performed. Perform (STEP 15), return to STEP 1, and if the command is a lock release command (instruction to release the automatic lock between the roll paper 110 and the spool 108), perform a lock release process (details will be described later) (STEP 16). Returning to STEP 1, if the command is a power-off command (command for turning off the power), the spool 10 holding the roll paper 110 is The remaining amount is updated by writing the value of the remaining amount register 122 to the EEPROM 109 (STEP 17), and the power OFF processing (the variables of the work RAM are stored in the EEPROM in the control unit 103, the end processing of each unit, the power supply unit, etc.). (STEP 18), and the process ends.
[0068]
Next, the roll paper setting by the operator in the roll paper setting process (STEP 5) will be described with reference to FIG. The operator first selects and prepares a desired roll paper 110, and passes a spool 108 (without the roll paper 110) through the core tube of the roll paper 110 while grasping the lever 40 of the spool 108, and By releasing the lever 40, the roll paper 110 is fixed to the spool 108. At this stage, if the lever 40 is gripped, the spool 108 and the roll paper 110 can be separated again. Next, the operator opens the open / close cover 106 of the supply unit 102, sets the fixed roll paper 110 and the spool 108 in the supply unit 102, and closes the open / close cover 106. On the other hand, when the open / close cover 106 of the supply unit 102 is opened and closed, the printer 101 determines that the roll paper setting is completed, and proceeds to STEP2.
[0069]
Next, a new article process (STEP 10) of the roll paper 110 will be described with reference to FIG.
[0070]
First, an error message and an instruction such as "Roll paper is new, so please enter the product code." Are issued via the host computer 100 or the operation unit 104 (STEP 31). (STEP 32), when there is an input of a product code from the operator, the input product code is stored in the product code register 117 (STEP 33), and the remaining amount / type determination unit 114 uses the product code as a search key and Is searched (STEP 34) to determine whether there is a corresponding product code (STEP 35). If there is a corresponding product code, From the LUT unit 115, the type of media corresponding to the corresponding product code and the initial amount of media are read. Is set in the type register 118 and the remaining amount register 122 (STEP 36), and the lock control unit 136 in the roll control unit 111 locks the roll paper 110 and the auto lock unit 41 of the spool 108 (STEP 37). (New roll paper processing) ends, and the process returns to the main routine. On the other hand, if the product code entered in STEP 35 does not exist, an error message such as “the product code is not applicable.” Is issued, and “unload / re-enter product code / input remaining amount and type / forced use” Is displayed, and the operator waits for selection input by the operator (STEP 40).
[0071]
When the operator selects the unload menu because the roll paper 110 to be set is wrong or the like, the control unit 103 of the printer 101 determines that the unload command is selected (STEP 41), and unloads the same as in STEP 15. The process is performed (STEP 42), the process exits this subroutine, and returns to STEP 2 of the main routine.
[0072]
On the other hand, when the operator selects re-input of the product code due to an input error of the product code or the like, the control unit 103 of the printer 101 determines that re-input of the product input is selected (STEP 43), and returns to STEP 32. Then, the user waits for the input of the product code again.
[0073]
Further, when the product code is completely new, or when the roll paper 110 used once and removed from the spool 108 is used again, and the operator selects the input of the remaining amount and the type, the printer 101 The control unit 103 determines that the input of the remaining amount and the type is selected (STEP 44), performs manual input processing of the remaining amount and the type of the roll paper by an input operation of the operator (STEP 46), and determines the input remaining amount and the type. The type is stored in the remaining amount register 122 and the type register 118 (STEP 47), and the flow proceeds to STEP 37.
[0074]
Finally, when the operator selects the forced use, for example, by using the roll paper 110 set this time without managing the remaining amount or the type, the process proceeds to the determination in STEP 41 to 44 and the remaining amount register is determined in STEP 45. An undetermined code (such as a value written when the EEPROM 109 of the spool 108 is reset) is stored in the type register 122 and the type register 118 (STEP 45), and the process proceeds to STEP 37. When this forced use is used, each time printing is performed, an abnormality is detected in STEPs 61 and 62 described later, and the operator is requested to confirm again.
[0075]
In the above-mentioned STEPs 44, 46 and 47, the case where the product code of the roll paper 110 is new and the case where the roll paper once used and removed from the spool are used again are treated the same. Is also possible. The division is performed by a method of inquiring the operator to make a selection. In particular, in the case of a new product, after the processing of STEP 47, the input product code, the remaining amount (in this case, the initial value) and the type are input to the LUT unit 115. When this product code is input next time, the product code is determined to be applicable in STEP 35, and the remaining amount (in this case, the initial value) and the type can be read from the LUT unit 115 and used.
[0076]
When the roll paper 110 that has been used once and removed from the spool 108 is used again, the information 51 (product code, product code, etc.) recorded on the roll paper 110 as shown in FIG. (Remaining amount, type) can also be used.
[0077]
Further, a means for automatically reading the information 51 recorded on the roll paper 110 is provided, and when the roll paper 110 that has been used once and removed from the spool 108 is used again, the remaining amount and the type are read from the read information. It is also possible to input automatically. At this time, the information 51 may include both information that can be read by the operator and a form that is easy to read by the reading means (for example, an encoded form such as a barcode).
[0078]
In addition, the means for automatically reading can determine whether the roll paper 110 is new or is to be used again based on whether or not information is recorded on the roll paper 110.
[0079]
The above-described new processing of roll paper is performed according to the determination in STEP 9 when the power is turned on or when the roll paper 110 and the spool 108 are newly set.
[0080]
Next, the printing process will be described with reference to FIG.
[0081]
First, in the printing process, parameters such as the type of the roll paper 110 to be used and the width, length and number of images to be printed are specified by the operator via the host computer 100 and the operation unit 104. The information in the remaining amount register 122 and the type register 118 is used to determine whether the type of the roll paper 110 and the length and number of print images are the same as the type and remaining amount of the roll paper 102 set in the supply unit 102. The control unit 103 makes a determination (STEP 61, STEP 62). Here, the type is determined as long as the specified type and the content of the type register 118 need to match, and the remaining amount is determined by [remaining amount in remaining amount register] ≧ [print image length] It is determined that it is sufficient if [the length] × [the number of sheets] + α (the set value of the machine). If the types do not match, an error message such as "abnormal recording medium type, replace with paper" is sent to the operator via the host computer 100 or the operation unit 104 (STEP 81), and the processing of the operator after STEP 83 is performed. In the waiting state, even when the remaining amount is insufficient, an error message such as “replace the recording medium type with insufficient amount ○ m or more” is notified to the operator via the host computer 100 or the operation unit 104 ( (STEP 82), and waits for the processing of the operator after STEP 83. The 紙 paper is the type of roll paper specified by the operator, and 以上 m or more is obtained by digitizing [print image length] × [number of sheets] + α (machine setting value).
[0082]
At this time, what kind of processing the operator has selected is determined from STEP 83 to STEP 89. In the case of an unload command, the unload processing (STEP 84) is performed, and after the operator removes the roll paper 110, STEP 2 and STEP 4 are performed. In the case of a lock release command, the lock release processing is performed (STEP 86), and after the operator removes the roll paper 110, the process proceeds to STEPs 2 and 4 to wait for the setting of the advance roll paper 110. (STEP 5), in the case of the print cancel instruction, the print cancel processing of the print sequence control section 124, the image data processing section 123, and the like (the parameters and image data designated by the operator at the time of the print processing are cleared and returned to the initial state, etc.). And make it ready to accept commands from the next operator (STEP 88), and shifts to the command waiting state in the standby state (STEP 12). If the command is a compulsory continuation printing command, a message is sent to the operator to confirm that the printing is to be continued due to an abnormal condition. Then (STEP 90), it is determined whether or not the operator has selected continuation (STEP 91). If the continuation is to be performed, the process proceeds to STEP 63, and if the continuation is to be stopped, the operator waits for a re-command from STEP 83.
[0083]
On the other hand, if the type and the remaining amount of the roll paper 110 are good, the leading end of the roll paper 110 is transported from the supply unit 102 to a position where recording can be performed by the recording head 126 and stopped (STEP 63). (STEP 64) to perform initialization processing for initializing each part of the printing unit, HP printing processing, recording head recovery processing, initialization of the usage register 120 to 0, etc. so that the carriage 125 can be started. Then, the recording head 126 is ejected in accordance with the image data to perform printing for one scan (STEP 65), the transport unit 130 transports the roll paper 110 by a predetermined transport amount (STEP 66), and the usage amount counting unit 119 Updates the used amount by adding the used amount register 120 by the transport amount (STEP 67), and reduces the used amount to the designated print length and number of sheets. It is determined whether or not the corresponding printing is completed. If not, the printing is repeated again from STEP 65, and if all printing is completed, the printing end processing (wiping of recording head 126, HP output, capping, etc.) (STEP 69), the remaining amount counting unit 121 adds the value of the remaining amount register 122 and the value of the use register 120, and writes the added value to the remaining amount register 122 again, thereby writing the remaining amount register 122 Is updated (STEP 70), and the updating unit 112 determines whether or not it is time to update the remaining amount of the spool 108 in the EEPROM 109 (STEP 71). (Step 72) The routine of the printing process is completed, and the process returns to STEP 12. Exit the routine of the character processing returns to STEP12.
[0084]
Here, the timing at which the updating unit 112 updates the remaining amount of the spool 108 in the EEPROM 109 will be described. 10 m), the remaining amount in the EEPRO109M is updated again, a method of rewriting the date and time using a calendar IC or the like, a method of performing the printing process once the number of times reaches a certain value, and the like. The write operation to the EEPROM 109 is reduced as much as possible.
[0085]
Next, an unloading process when the roll paper 110 and the spool 108 are removed from the supply unit 102 in an auto-locked state will be described with reference to FIG.
[0086]
First, the remaining amount register 122 is read, the remaining amount in the EEPROM 109 of the spool 108 is updated with the read value (STEP 101), and the roll paper 110 to be removed from the supply unit 102 is unwound (STEP 102). The cover lock unit 107 of the opening / closing cover 106 of the supply unit 102 is unlocked so that the roll paper 110 can be taken out with the attached 108 (STEP 103). (STEP 104), and terminates the unloading process. After the end of the unloading process, the operator opens the open / close cover 106 of the supply unit 102 and removes the roll paper 110 from the supply unit 102 together with the spool 108.
[0087]
Next, with reference to FIG. 12, a description will be given of a lock release process when the roll paper 110 and the spool 108 are removed from the supply unit 102 in a state where the automatic lock is released. In this process, there are many processes that match the unload process in FIG.
[0088]
First, information (product code, remaining amount, type, etc.) on the roll paper 110 is read by a print sequence control unit 124 and an image data processing unit 123 of the printer 101, using characters or symbols (bar code, etc.) from which an operator can read. The information is printed as shown in FIG. 7 by using the printing operation, the remaining amount register 122 is also increased by the amount of printing (STEP 111), the remaining amount register is read out, and the read out value is used to determine the remaining amount in the EEPROM 109 of the spool 108. Update (STEP 112), unwind the roll paper 110 to be removed from the supply unit 102 (STEP 113), release the lock of the auto lock unit 41 of the spool 108 (STEP 114), and roll with the spool 108 attached from the supply unit 102. Cover lock section of opening / closing cover 106 of supply section 102 so that paper 110 can be taken out. 07 to the unlocked state (STEP 115), and Circular via the operation unit 104 or the host computer 100 that it is now detachable operator (STEP 116), and ends the present lock release processing. The operator waits for the end of the unlocking process, opens the opening / closing cover 106 of the supply unit 102, removes the roll paper 110 from the supply unit 102 together with the spool 108, and removes the spool 108 from the roll paper 110 if necessary. It can be removed by grasping and pulling out the lever 40 of the manual lock portion 108.
[0089]
The spool 108 is provided with a detecting means for detecting that the roll paper 110 has been removed, so that when it is detected that the roll paper 110 has been If the information (remaining amount, type, product code) is cleared and not removed, the information (remaining amount, type, product cocode, etc.) in the EEPROM 109 is retained. As the detection means, a method of using a switch for detecting that the lever 40 of the manual lock portion is squeezed, or a switch provided on the positioning member 50 so that the switch is turned off when the roll paper 110 is removed from the positioning position. It can be realized by a configuration method, a configuration in which a light receiving element is attached to the electric substrate 131 of the spool 108, and when the roll paper 110 is removed, external light enters the light receiving element to detect that the roll paper 110 has been removed. .
[0090]
When this detection means is not provided, it can be dealt with by clearing when the remaining amount of the EEPROM 109 is updated in STEP 112 of the unlocking process.
[0091]
In addition, the language of the characters of the printed information 51 in FIG. 7 is Japanese here, but is not limited to this. The language of the shipping destination is specified by the instruction of the operation unit 104 or the like. It is possible to change. Further, as a symbol such as a barcode, a pattern which can be automatically read by a reading unit such as a barcode reader or a scanner can be used.
[0092]
【The invention's effect】
As described above, according to the image forming apparatus and the roll paper holding member of the present invention, even when a roll-shaped recording medium (roll paper in the embodiment) used once is used by another printer, the holding member is removed from the recording medium. Unless the spool is removed, the remaining amount and type can be managed, and even if the recording medium printed by another printer is returned to the original printer, the remaining amount and type information can be inherited. Can be used with a plurality of printers managing the remaining amount and type.
[0093]
In addition, even for general-purpose recording media in which the remaining amount and type are not recorded or stored in the recording medium at the time of shipment, the remaining amount and type can be managed by registering the initial remaining amount and type with the product code. . Also, at this time, the search for the initial remaining amount and the type is automated by using the registered product code again, and the operator only needs to input the product code, and does not need complicated input processing. There are advantages.
[0094]
Also, since information such as the remaining amount is printed on the recording medium only at the time of an unlock command to remove the holding member from the recording medium, the remaining amount information is printed on the conventional recording medium at the time of shipment or use (unloading). Compared with the method, the problem that the recording medium in which the remaining amount information is written is wasted is reduced.
[0095]
Further, since the mechanism for locking the recording medium and the holding member cannot be released unless the lock release command is inserted into the printer main body, the recording medium and the holding member are separated from each other in a state where the recording medium is removed from the printer by a simple unload command. Therefore, the separation of the recording medium and the holding member due to an erroneous operation by the operator can be drastically reduced, and the remaining amount and the type can be continuously managed. In addition, even when the recording medium is removed from the printer in the locked state and the unlocked state, the recording medium is always removed with the holding member attached, so that the remaining amount and the type can be managed continuously.
[0096]
Further, since the holding member to be added to the recording medium has a relatively simple configuration, it can be configured at a low cost and light weight, so that the operation of the operator inserting and removing the recording medium with the holding member from the printer does not cause a large load. is there. Also, a plurality of inexpensive holding members can be prepared, and a plurality of recording media can be used in a printer by simultaneously managing the remaining amount and type.
[0097]
As described above, even when a plurality of types of general-purpose roll-shaped recording media are used and a plurality of general-purpose roll-shaped recording media are used by a plurality of printers, the remaining amount and type of the recording media can be accurately managed.
[Brief description of the drawings]
FIG. 1 is a block diagram of a main internal configuration of a printer according to an embodiment of the present invention.
FIG. 2 is a perspective view showing the appearance of the printer according to the embodiment of the present invention.
FIG. 3 is a diagram illustrating a roll paper transport path in the printer according to the embodiment of the present invention.
FIG. 4 is a diagram illustrating a spool and roll paper, which are main components of the printer according to the embodiment of the present invention.
FIG. 5 is a diagram illustrating a spool and roll paper lock mechanism, which is a main configuration of the printer according to the embodiment of the present invention.
FIG. 6 is a block diagram of a main internal configuration of storage means of a spool which is a main configuration of the printer according to the embodiment of the present invention.
FIG. 7 is an example in which information (remaining amount, type, and product code) is printed on roll paper by the printer according to the embodiment of the present invention.
FIG. 8 is a flowchart for explaining main operations in the printer according to the embodiment of the present invention.
FIG. 9 is a flowchart for describing main operations in the printer according to the embodiment of the present invention.
FIG. 10 is a flowchart for describing main operations in the printer according to the embodiment of the present invention.
FIG. 11 is a flowchart for describing main operations in the printer according to the embodiment of the present invention.
FIG. 12 is a flowchart for describing main operations in the printer according to the embodiment of the present invention.
[Explanation of symbols]
1 Power switch
2 Operation panel
3 paper exit
4 Upper cassette
5 Lower cassette
6 Output tray
10 BJ print head
11 Pressure roller sensor
12 Pressure roller
13 spurs
14 Eject roller
15 Feed roller
16 Eject sensor
17 Spur sensor
18 Skew sensor
19 Cassette A paper feed sensor
20 Roll paper feed roller
21 Cassette A roll paper feed roller
22 Spool A sensor
23 spool
24 roll paper
25 Cassette B paper feed sensor
26 Cassette B roll paper feed roller
27 Spool B sensor
28 spool
29 Roll paper
40 Manual lock lever
41 Auto-lock section
42 opening (for auto lock)
43 Opening (for communication unit)
44 gears
45 Bearing
46 Guide
47 Manual lock part pressing member
48 Manual lock spring
49 Connecting part of manual lock
50 Positioning member
51 Barcode (product code / remaining amount)
100 Host computer
101 Printer
102 Supply unit
103 control unit
104 Operation unit
105 Printing section
106 Openable cover
107 Cover lock
108 spool
109 EEPROM
110 roll paper
111 Roll control unit
112 Update section
113 Roll paper management unit
114 Remaining amount / type determining unit
115 LUT section
116 New / Old Judgment Division
117 Product code register
118 type registers
119 Usage Counting Unit
120 Usage register
121 Remaining amount counting unit
122 Remaining register
123 Image Data Processing Unit
124 print sequence controller
125 carriage
126 recording head
127 Main scanning unit
128 recovery unit
129 Ink supply unit
130 transport unit
131 electrical board
132 Memory control unit
133 batteries
134 Optical communication unit (board side)
135 Optical communication unit (roll paper control unit side)
136 Lock control unit

Claims (6)

In an image forming apparatus for forming an image on a drawn-out portion while pulling out a detachable roll-shaped recording medium,
A holding member (spool, flange, or the like) used to be attached to the recording medium to hold the recording medium in the image forming apparatus;
Readable and writable storage means arranged on the accessory member for storing information such as the remaining amount and type of the recording medium,
Usage amount counting means for counting the usage amount of a recording medium used in a printing operation or the like,
A remaining amount counting unit that counts a new remaining amount from the remaining amount and the used amount, which are information in the storage unit,
An image forming apparatus comprising: an updating unit that updates a remaining amount, which is information in the storage unit, with the new remaining amount at a certain time. A reset unit configured to reset the storage unit when the holding member is removed from the recording medium;
A determination unit that determines whether the storage unit is in a reset state as to whether the storage medium is new or reused when the storage medium with the holding member is mounted in an image forming apparatus,
Input means for inputting an identifier such as a product code of the recording medium when determined to be new,
Determining means for determining information (remaining amount, type, etc.) of the recording medium from the input identifier;
An image forming apparatus further comprising an updating unit for updating information (remaining amount, type, etc.) in the storage unit with information (remaining amount, type, etc.) determined by the determining unit. 3. The image forming apparatus according to claim 1, further comprising a lock mechanism that locks the holding member and the recording medium so that they cannot be separated from each other, wherein the locking mechanism is provided when the recording medium with the holding member is mounted in an image forming apparatus. An image forming apparatus characterized in that the apparatus further comprises a control means for automatically unlocking the lock when the recording medium is empty or when the recording medium is empty when the apparatus is automatically locked. 4. The printing apparatus according to claim 3, further comprising a printing unit that prints information such as a remaining amount and a product code on the recording medium when the recording medium is not empty and an unlock instruction is given by an operator. Image forming apparatus. 4. The recording medium for a recording medium according to claim 3, wherein the lock mechanism is a mechanism for holding the locked state even when the recording medium with the holding member is removed from the inside of the image forming apparatus in a locked state. Holding member. When the attachment member and the recording medium are separated after the holding member and the recording medium unlocked by the control unit according to claim 3 are detached from the image forming apparatus, the storage unit of the holding member is A recording medium holding member for resetting stored information.

Images