JP2000085147A - Ink-jet recording apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink-jet recording apparatus which enables an ink cartridge to be exchanged to be surely exchanged. SOLUTION: A permanent magnet 25 as a magnetic recording means for recording the fact to label seals that ink cartridges 8, 9 are once loaded to a carriage 1 is arranged at one end of a movement range of the carriage 1. A magnetic recording-reading sensor 28a for reading the magnetic recording recorded to the label seals of the ink cartridges 8, 9 by the permanent magnet 25 is arranged at the other end of the movement range of the carriage 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an ink jet recording apparatus used as an output device such as a computer or a word processor. In particular, the present invention relates to an ink jet recording apparatus in which a recording head and an ink cartridge containing ink are independent of each other, and only the ink cartridge can be replaced.

[0002]

2. Description of the Related Art A recording head used in an ink jet recording apparatus is configured as a recording head cartridge which can be attached to and detached from a carriage for maintenance-free, downsizing and running cost reduction.
An ink cartridge containing ink is detachably connected to the recording head cartridge.

[0003] As a recording head used in an ink jet recording apparatus, an arrangement in which fine discharge ports are arranged is generally used. Therefore, foreign matter such as paper dust or dust adheres to the ink discharge ports, or the ink in the discharge ports. If the ink is dried and thickened or adhered, the discharge port may be clogged, resulting in defective discharge or non-discharge.

[0004] When a new ink cartridge or a head cartridge is used for the first time, the state of the ink flow path from the ejection port to the ink cartridge is not always properly corrected.

In order to prevent clogging and normalize the ink flow path as described above, the ink jet recording apparatus has a surface including an ink discharge port of a recording head (hereinafter, referred to as an ink discharge port).
Cleaning means for removing foreign matter adhering to the discharge port forming surface) and recovery means for normalizing the discharge ports and ink flow paths of the head are provided.

As the cleaning means, a mechanism for wiping and cleaning the ejection port forming surface of the recording head using a flexible wiper (wiping member) is mainly employed.

Further, as one example of the ejection recovery means, a cap capable of covering the ejection port forming surface of the recording head,
There is known a pump provided with a pump that communicates with the cap to apply a suction force.

In this configuration, ink is discharged from all the discharge ports toward the cap by driving the ink discharge energy generating element in the discharge ports (hereinafter also referred to as preliminary discharge).
The ink is forcibly ejected by applying a suction force and applying suction from the ejection port while the ejection port forming surface is covered with a cap, or by removing the cause of ejection failure together with the ink. is there. In addition, in order to suppress the occurrence of the above-described ejection failure factor, the cap is configured so as to cover the ejection opening of the recording head at the home position during non-printing.

Further, the ink jet recording apparatus has an ink remaining amount detecting means and a notifying means for notifying the replacement timing of the ink cartridge in order to properly notify the user of the replacement timing of the ink cartridge.

A conventional ink cartridge replacement procedure is as follows.
For example, the processing is performed as shown in the flowchart of FIG.

First, when the power is turned on (step S20)
1), EEP-ROM (Electrically Erasa not shown)
The information on the remaining amount of ink in each ink tank is read from the ble and programmable ROM (step S202), and the process stands by (step S203). If there is a command for recording, preliminary ejection, and recovery suction, the command is executed in accordance with each command (step S
204). The amount of ink consumed in recording, preliminary ejection, and recovery suction is counted for each ink, and the amount of ink used is subtracted from the amount of ink used so far to calculate the remaining amount of ink (step S205). When the remaining amount of ink in at least one of the ink tanks falls below a certain level, an exchange signal for the ink cartridge containing the ink whose remaining amount of ink falls below the certain level is issued (step S206). When a plurality of ink cartridges fall below a certain level at the same time, an exchange signal for all the corresponding ink cartridges is issued. Next, looking at the exchange signal, when the user presses the ink cartridge exchange switch (step S207), the carriage moves to the exchange position (step S208). When the user replaces the ink cartridge (step S209) and presses the ink cartridge replacement end switch (step S210),
The recovery operation of the recording head corresponding to the replaced new ink cartridge is performed (step S211). The ink remaining amount counter of the ink contained in the replaced ink cartridge is reset (step S21).
2). When the ink contained in an ink cartridge other than the replaced ink cartridge is consumed during the recovery operation, the consumed amount is counted and the remaining ink amount is calculated. Next, the carriage moves to the capping position, which is the home position, caps the recording head, and waits (step S213).

Next, when a command for recording, preliminary ejection, and recovery suction is issued (step S214), the process returns to step S204. If there is no command, the process stands by (step S21).
5) When a power-off command is received (step S21)
6), after updating the remaining ink amount data in each ink tank of the EEP-ROM (not shown) (step S217),
The power is turned off (step S218).

[0013]

As described above, in the conventional ink jet recording apparatus, there is no means for judging whether or not the ink tank has been replaced correctly, and the printer has to judge that the user's operation is correct. Was. For this reason, for example, if a user mistakenly replaces an ink cartridge other than the ink cartridge to be replaced, that is, an ink cartridge that does not need to be replaced, with another ink cartridge, the ink cartridge is originally replaced during printing. When the ink in the ink cartridge that needs to be removed runs out, the portion to be recorded with the ink becomes white and the recorded matter may be wasted.

In order to solve such a problem, Japanese Patent Laid-Open Publication No.
JP-A-39824 proposes attaching a bar code for individually identifying each ink cartridge to the outer surface of the ink cartridge.

However, a new capital investment is required to attach a new barcode.

Further, there is a problem that a bar code having an enormous number of digits is required to identify all the ink cartridges supplied to various countries of the world, and there is no place to attach a small ink cartridge.

On the other hand, in JP-A-6-255120, an ink cartridge is provided with an ink remaining amount display portion made of a heat-sensitive material, and the ink remaining amount display portion is displayed on the ink remaining amount display portion based on the information of the ink remaining amount detecting means. Is recorded by a heating means.

However, in this proposal, since there is no means for identifying the ink cartridge on the recording apparatus side, it is impossible to avoid a user's operation error.

Further, the use of the heating means consumes a large amount of energy when recording the remaining amount of ink, and is not suitable for a battery-driven recording apparatus.

An object of the present invention is to solve the above problems,
An object of the present invention is to provide an ink jet recording apparatus capable of reliably replacing an ink cartridge to be replaced.

[0021]

In order to solve the above-mentioned problems, an ink jet recording apparatus according to the present invention reciprocates along an upper surface of a recording medium and performs recording by discharging ink onto the recording medium. In an ink jet recording apparatus having a head cartridge and a carriage which is removably mounted on the recording head cartridge and supplies ink to the recording head cartridge, a magnetic material provided on at least a part of the ink cartridge is used. A magnetic recording unit, magnetic recording means for recording information on the ink cartridge in the magnetic recording unit when the carriage is stopped at a first position, and the carriage is stopped at a second position. Reading means for reading information recorded in the magnetic recording unit And wherein the Mukoto.

Here, the stop position of the carriage for mounting the ink cartridge on the recording head cartridge mounted on the carriage may be between the first position and the second position.

The first stop position of the carriage is in the vicinity of cap means for performing an ejection recovery operation on the recording head cartridge mounted on the carriage, and the first stop position of the ejection recovery operation by the cap means is provided. The fact may be written to the magnetic recording section of the ink cartridge by the magnetic recording means.

Further, a plurality of ink cartridges can be mounted on the recording head cartridge, and an ink remaining amount detecting means for detecting an ink remaining amount for each ink type for each ink cartridge; Notification means for notifying the user of information on the remaining amount of ink detected by the user.

Further, after the ink cartridge is exchanged between the first stop position and the second stop position of the carriage, the magnetic recording of the newly mounted ink cartridge is performed by the reading means. The information processing apparatus may further include a determination unit configured to read information of the unit and determine whether the ink cartridge has been correctly replaced based on the read information.

Further, based on the judgment by the judging means, the ink remaining amount information detected by the ink remaining amount detecting means may be updated.

Further, the recording of the magnetic information in the magnetic recording section may be performed after the replacement of the ink cartridge and after the determination means determines at least whether the ink cartridge has been replaced correctly. .

After the ink cartridge has been replaced, if the determining means determines that the ink cartridge has not been replaced correctly, the notifying means reports an operation error based on the determination. Item 6. An ink jet recording apparatus according to item 5.

The magnetic recording section may be a sheet material which can be adhered to the wall of the ink cartridge and is coated with a magnetic material. The sheet material stores the product information of the ink cartridge. It may be a printed label sticker. Further, the ink cartridge may be an ink container formed of a plastic material mixed with a magnetic material.

The magnetic recording means for recording magnetic information on the magnetic recording section of the ink cartridge may be a permanent magnet.

Further, the magnetic recording means may also serve as judging means for reading information recorded on the magnetic material and judging whether or not the ink cartridge has been replaced.

That is, in the ink jet recording apparatus of the present invention, a magnetically recordable sheet material coated with a magnetic material is used as the label seal material of the ink cartridge, and the label seal surface of the ink cartridge of the carriage lock lever interlocked with the capping. A permanent magnet is provided at a position facing the ink cartridge, and at the time of capping at a position distant from the capping position of the carriage, by providing a magnetic sensor at a position facing the label seal surface of the ink cartridge facing the permanent magnet, after replacing the ink cartridge, By detecting the presence or absence of magnetism on the label seal surface of the ink cartridge by the magnetic sensor, it can be determined whether or not the ink cartridge has been newly replaced.

According to the present invention, it is possible to determine whether the user has replaced the ink cartridge correctly, and it is possible to prevent a recording failure due to a user error.

Further, in the present invention, no capital investment is required, a large amount of ink cartridges can be distributed, the size of the ink cartridge can be reduced, and the size of the recording apparatus can be further reduced.

Further, in the present invention, since a large amount of energy is not consumed, the present invention is most suitable for a small-sized mobile printer driven by a battery.

[0036]

[First Embodiment] FIG. 1 is a schematic perspective explanatory view (partially transparent, partly broken) showing an embodiment of the ink jet recording apparatus of the present invention. The recording apparatus shown in FIG. 1 is a so-called serial type in which a recording section reciprocates and performs recording on a recording medium.

In FIG. 1, reference numeral 1 denotes a carriage. The carriage 1 is slidably supported by a guide shaft 2 and a guide rail 3 in the direction of arrow A. A part of the carriage 1 is fixed to a carriage driving belt 6 stretched between the carriage driving motor 4 and the pulley 5, and the driving belt 6 moves in accordance with the rotation of the carriage driving motor 4.
Can be reciprocated in the direction of arrow A. The position of the carriage 1 is detected by the carriage home sensor 29.

A recording head cartridge 7 is detachably mounted on the carriage 1. The ink ejection ports (not shown) of the recording head cartridge 7 are formed downward, and the recording head cartridge 7 is electrically connected to a control substrate (not shown) by a flexible substrate 10. 8 is a black ink cartridge containing black ink, 9 is yellow,
This is a color ink cartridge in which three ink tanks containing magenta and cyan inks are integrated. These ink cartridges 8 and 9 are removably mounted on the recording head cartridge 7. As shown in FIG. 2, name plate stickers (hereinafter referred to as label stickers) 8a and 9a indicating the types of the respective inks and the like are attached to the top surfaces of the ink cartridges 8 and 9, respectively.

These label seals 8a and 9a are formed by printing display contents such as the type of ink on a magnetically recordable sheet material coated with a magnetic material, and are not magnetized in an initial state.

Numeral 11 denotes a conveying roller, which is connected to a recording sheet conveying motor 13 via a driving force transmitting mechanism 12 such as a gear train. Reference numeral 14 denotes a pinch roller rotatably supported on a pinch roller holder 15. The pinch roller 14 is urged toward the transport roller 11 by an urging member (not shown). Reference numeral 16 denotes a paper discharge roller. The paper discharge roller 16 is connected to the transport roller 11 via a driving force transmission gear train 17. Discharge roller 16
Is urged to the spur 18 by an unillustrated urging member.

Reference numeral 19 denotes a recording sheet. Recording sheet 19
Is inserted from a recording sheet feed opening formed by the upper and lower two guide members 20 and 21, and is held between the transport roller 11 and the pinch roller 14 and between the discharge roller 16 and the spur 18, respectively. The sheet is conveyed in the direction of arrow B by the rotation of the conveying roller 11 and the sheet discharging roller 16 in accordance with the rotation of the sheet conveying motor 13. The presence or absence of the recording sheet 19 is detected by the recording sheet sensor 30.

In the above-described ink jet recording apparatus, recording is performed as follows.

First, the recording sheet 19 is inserted from the paper feed port until the leading end thereof comes into contact with the nip portion between the transport roller 11 and the pinch roller 14. Thereafter, the recording sheet transport motor 13 is driven, and the transport roller 11 is rotated to transport the recording sheet 15 to a recording position facing the recording head 7. Then, while the carriage 1 moves along the guide shaft 2 and the guide rail 3, one row of printing is performed. After the recording of one line is completed, the recording sheet 15 is conveyed to the next recording position, and the carriage 1 again moves along the guide shaft 2 and the guide rail 3 to record the next line. Recording is performed by repeating the above.

Reference numeral 22 denotes a cap disposed outside the area through which the recording sheet 19 passes. The cap 22 can be moved in the direction of arrow C by obtaining a driving force from the recording sheet transport motor 13 via the clutch mechanism 23, and a pump (not shown) for performing a recovery operation of the recording head cartridge 7 is provided.
In addition, it is connected in series with a waste ink tank (not shown) for discarding ink sucked by the pump which is not suitable for recording. The cover operation (cap operation) of the ink discharge unit by the cap 22 is performed by moving the carriage 1 so that the ink discharge port (not shown) of the recording head cartridge 7 mounted on the carriage 1 faces the cap 22 (capping position). Then, the cap 22 is raised in the direction of arrow C, and the cap 22 is brought into contact with the ink ejection portion (ejection port forming surface) of the recording head cartridge 7.

Reference numeral 24 denotes a carriage lock lever (shown by a two-dot chain line because it is seen through), one end of which is rotatably supported by the guide shaft 2. It rotates around the center in the direction of arrow D. That is, when the cap 22 is in contact with the ink discharge portion (discharge port forming surface) of the recording head cartridge 7 and covers (caps) the carriage lock lever 2
4, the notch 24a is fitted to the protrusion 1a of the carriage 1, and the carriage 1 is locked so as not to move in the direction of arrow A. On the other hand, when the cap 22 is separated from the ink discharge portion (discharge port forming surface) of the recording head cartridge 7, the carriage lock lever 24 is raised, so that the notch 24 a and the protrusion 1 a of the carriage 1 are connected. The engagement is released, and the carriage 1 can move in the direction of arrow A.

When the carriage is locked, the label seal portions 8a and 9a of the ink cartridges 8 and 9 are provided.
Since a permanent magnet 25 is provided integrally with the carriage lock lever 24 at an upper position opposite to (FIG. 2), if the capping operation is performed even once after the ink cartridges 8 and 9 are replaced, the ink cartridge Are magnetically stamped on the label seal portions 8a and 9a, and magnetic recording remains.

Reference numeral 26 denotes a cam, which operates the cap 22;
The operation of the carriage lock lever 24 and the operation of a pump (not shown) are determined.

Reference numeral 27 denotes a wiper, which is configured to be able to come into contact with and separate from the ink ejection portion of the recording head cartridge 7 in conjunction with the movement of the carriage 1. By moving the carriage 1 while the wiper 27 is in contact with the ink ejection unit of the recording head cartridge 7, it is possible to wipe and remove dirt such as dust attached to the ink ejection unit.

Numeral 28 designates an ink cartridge discriminating means provided with a magnetic sensor 28a. The other end of the moving range of the carriage 1 which is opposite to the capping position provided at one end of the moving range of the carriage 1 is provided. It is fixed to an upper case (not shown). Magnetic sensor 28
1 is shown by a two-dot chain line for perspective in FIG. 1, and is disposed at a position corresponding to the permanent magnet 25 in the scanning direction A of the carriage 1 with respect to the permanent magnet 25 disposed on the capping position side.

FIG. 3 is a block diagram showing a schematic configuration example of a control system of the ink jet recording apparatus of the present invention.

The position of the carriage 1, the presence or absence of the recording sheet 19, and the identification of the ink cartridge are determined by the recording sheet sensor 3.
0, the carriage home sensor 29 and the ink cartridge identification means 28 can be known based on the detection of the ink cartridge identification sensor 28a.

In FIG. 3, reference numeral 1000 denotes an MP for executing a control procedure such as a preset program to control each unit.
U and 1001 are ROMs storing programs and the like corresponding to the above control procedures, and 1002 is a RAM used as a work area when executing the control procedures. Reference numeral 1003 denotes an ink remaining amount detecting means for calculating the ink remaining amount of the ink cartridges 8 and 9 and calculating the ink remaining amount, for example, by counting the ink consumption amount from the initial stage of the ink cartridge. An EEP-ROM 1004 rewritably holds the calculated result of the remaining ink amount and the like, and can hold each data even when the power of the inkjet recording apparatus is turned off. 1005
Is a notifying means for notifying a replacement signal of the ink cartridges 8 and 9, and includes a buzzer and an LED (light emitting diode).
And liquid crystal displays. An input unit 1006 is used by a user to input a start or end of ink cartridge replacement.

Next, with reference to FIGS. 4 and 5, the operation of replacing the ink cartridge according to the present invention will be described.

FIG. 4 is a sequence when the ink cartridge is replaced, and FIG. 5 is a schematic explanatory diagram for explaining the operation when the ink cartridge is replaced.

First, when the power is turned on (step S10)
1) Information on the remaining amount of each ink is read from the EEP-ROM 1004 (step S102), and the process waits (step S103). When there is a command for recording, preliminary ejection, and recovery suction, the command is executed in accordance with each command (step S10).
4). The amount of ink consumed in recording, preliminary ejection, and recovery suction is counted for each ink, and the amount of ink used is subtracted from the amount of ink used so far to calculate the remaining amount of ink (step S).
105). When the remaining amount of ink in at least one of the ink tanks falls below a certain level, an exchange signal for exchanging the corresponding ink cartridge is issued (step S10).
6). When a plurality of ink cartridges fall below a certain level at the same time, an exchange signal for all the corresponding ink cartridges is issued. Next, upon seeing the exchange signal, the user presses an ink cartridge exchange switch (not shown) (step S107), and the carriage 1 is moved to the exchange position (the position X in FIG. 5: the first stop position and the second stop position). (Step S108). The user replaces the ink cartridge (step S10).
9), ink cartridge replacement end switch (not shown)
Is pressed (step S110), the carriage 1 moves to the ink cartridge identification position (position Y in FIG. 5: second stop position) (step S111). The presence / absence of magnetism of the label seals 8a, 9a of the ink cartridges 8, 9 is determined by the magnetic sensor 28a of the ink cartridge determination means 28, and it is determined whether the ink cartridge has been properly replaced by the user (step S112). here,
For example, a new ink cartridge has "no magnetic stamp", and an ink cartridge with a history of once capped has "magnetic stamp". When the ink cartridge has been replaced normally, the recovery operation of the recording head corresponding to the replaced ink cartridge is performed (step S113). The ink remaining amount counter of the ink contained in the replaced ink cartridge is reset (step S114). When the ink contained in another ink cartridge is consumed in the recovery operation, the consumed amount is counted and the remaining ink amount is calculated. Next, the carriage moves to the capping position (Z position in FIG. 5: first stop position), which is the home position, caps the recording head, and waits. At this time, the carriage lock lever 24 locks the carriage, and a permanent stamp 25 incorporated in the carriage lock lever 24 records a magnetic stamp on the label seal of the ink cartridge (step S115).

Next, when a command for recording, preliminary ejection, and recovery suction is issued (step S116), the process returns to step S104. If there is no such command, the process waits as it is (step S
117), when the power-off command is received (step S1).
18) After updating the ink remaining amount data of each ink in the EEP-ROM 1004 (step S119), the power is turned off (step S120).

On the other hand, if it is determined in step S112 that the ink cartridge has not been properly replaced by the user, the user is informed that the ink cartridge should be replaced properly, and the process returns to step S108 (step S121).

[Second Embodiment] In the first embodiment, the sheet material coated with a magnetically recordable magnetic material for recording the fact that it is mounted on the carriage 1 is a label seal on which product information of an ink cartridge is printed. However, the ink cartridge itself may be formed of a plastic material mixed with the above magnetic material.

[Third Embodiment] In the first and second embodiments,
Since the case where the ink cartridges 8 and 9 are arranged in a direction orthogonal to the scanning direction (A direction) of the carriage 1 has been described as an example, two magnetic sensors (for the number of ink cartridges) for identifying the ink cartridges are used. However, by arranging the ink cartridges in parallel to the scanning direction (A direction) of the carriage and providing the carriage stop positions as many as the number of the ink cartridges as the ink cartridge identification positions, all the ink cartridges can be replaced with one magnetic sensor. The presence or absence can be determined.

[Embodiment 4] In Embodiments 1 to 3,
Although a permanent magnet is used as the magnetic recording means and a magnetic sensor is used as the ink cartridge identifying means, the above magnetic recording means and the identifying means can be shared by using a magnetic recording / reproducing head.

[0061]

As described above, according to the present invention,
It is possible to determine whether the user has replaced the ink cartridge correctly, and it is possible to prevent a recording failure due to a user's operation error.

Further, according to the present invention, no capital investment is required, a large amount of ink cartridges can be distributed, the size of the ink cartridge can be reduced, and the size of the recording apparatus can be further reduced.

Further, according to the present invention, since a large amount of energy is not consumed, the present invention is most suitable for a small-sized mobile printer driven by a battery.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a first embodiment of an ink jet recording apparatus of the present invention.

FIG. 2 is a perspective view showing an example of a recording head cartridge that can be mounted on the ink jet recording apparatus shown in FIG.

FIG. 3 is a schematic block diagram showing a control system in the inkjet recording apparatus shown in FIG.

4 is a flowchart illustrating a replacement sequence of an ink cartridge that can be mounted on the inkjet recording apparatus illustrated in FIG.

FIG. 5 is a schematic explanatory diagram for explaining an operation position of a carriage when exchanging an ink cartridge mountable on the ink jet recording apparatus shown in FIG. 1;

FIG. 6 is a flowchart illustrating a replacement sequence of an ink cartridge that can be mounted on a conventional inkjet recording apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Carriage 2 Guide shaft 3 Guide rail 4 Carriage drive motor 5 Pulley 6 Carriage drive belt 7 Recording head cartridge 8 Black ink cartridge 8a Label seal of black ink cartridge 9 Color ink cartridge 9a Label seal of color ink cartridge 10 Flexible substrate 11 Transport roller DESCRIPTION OF SYMBOLS 12 Driving force transmission mechanism 13 Recording sheet conveyance motor 14 Pinch roller 15 Pinch roller holder 16 Discharge roller 17 Driving force transmission gear train 18 Spur 19 Recording sheet 20 Guide member 21 Guide member 22 Cap 23 Clutch mechanism 24 Carriage lock lever 24a Notch Unit 25 permanent magnet 26 cam 27 wiper 28 ink cartridge discriminating means 28a magnetic sensor

Claims (13)

[Claims] A recording head cartridge that reciprocates along an upper surface of a recording medium and discharges ink to the recording medium to perform recording; and an ink cartridge that is removably mounted on the recording head cartridge and is attached to the recording head cartridge. An ink jet recording apparatus having a carriage on which an ink cartridge for supplying ink is supplied, wherein a magnetic recording unit made of a magnetic material provided on at least a part of the ink cartridge,
Magnetic recording means for recording information about the ink cartridge on the magnetic recording unit when stopped at the position, and information recorded on the magnetic recording unit when the carriage is stopped at the second position. An ink jet recording apparatus, comprising: reading means for reading an image. 2. A stop position of the carriage for mounting the ink cartridge on the recording head cartridge mounted on the carriage is between the first position and the second position. The ink-jet recording apparatus according to claim 1. 3. A first stop position of the carriage is in the vicinity of a cap unit for performing an ejection recovery operation on the recording head cartridge mounted on the carriage, and a first stop position of the ejection recovery operation by the cap unit. 3. An ink jet recording apparatus according to claim 1, wherein the fact is written in the magnetic recording section of the ink cartridge by the magnetic recording means. 4. A recording head cartridge in which a plurality of ink cartridges can be mounted, an ink remaining amount detecting means for detecting an ink remaining amount for each ink type for each ink cartridge, and an ink remaining amount detecting means. The ink jet recording apparatus according to any one of claims 1 to 3, further comprising: a notifying unit for notifying a user of information on the remaining amount of ink detected by (1). 5. A first stop position of the carriage and a second stop position of the carriage.
After the ink cartridge has been exchanged with the stop position of the ink cartridge, the reading unit reads information of the magnetic recording unit of the newly mounted ink cartridge, and based on the read information, the ink cartridge The inkjet recording apparatus according to any one of claims 1 to 3, further comprising a determination unit configured to determine whether or not the printer has been replaced. 6. The ink jet recording apparatus according to claim 5, wherein information on the remaining amount of ink detected by said remaining ink amount detecting means is updated based on the judgment by said judging means. 7. The recording of magnetic information on the magnetic recording section,
6. The ink jet recording apparatus according to claim 5, wherein the ink jet recording is performed after the ink cartridge is replaced and at least after the determination unit determines whether the ink cartridge has been replaced properly. 8. When the determining means determines that the ink cartridge has not been properly replaced after the replacement of the ink cartridge, the notifying means reports an operation error based on the determination. The inkjet recording apparatus according to claim 5, wherein 9. The apparatus according to claim 1, wherein the magnetic recording section is a sheet material that can be adhered to a wall of the ink cartridge and is coated with a magnetic material. The inkjet recording apparatus according to any one of the preceding claims. 10. The ink jet recording apparatus according to claim 9, wherein the sheet material is a label sticker on which product information of the ink cartridge is printed. 11. The ink jet recording apparatus according to claim 6, wherein the ink cartridge is an ink container formed of a plastic material mixed with a magnetic material. 12. The ink jet recording apparatus according to claim 1, wherein the magnetic recording means for recording magnetic information on the magnetic recording section of the ink cartridge is a permanent magnet. 13. The apparatus according to claim 1, wherein said magnetic recording means also serves as a judging means for reading information recorded on said magnetic material and judging whether or not said ink cartridge has been replaced. An inkjet recording apparatus according to any of the above items.