JP2023059240A - Recording device and control method of the same - Google Patents

Abstract

To make it possible to improve the detection accuracy.SOLUTION: A recording device includes: a storage part for storing liquid or powder to be supplied to a recording part for recording; first sensing means provided on a first outer surface of the storage part; second sensing means, located apart from the storage part; and detection means for detecting an amount of liquid or powder stored in the storage part. The detection means detects the amount of liquid or powder stored in the storage part based on first sensing information by the first sensing means and second sensing information by the second sensing means.SELECTED DRAWING: Figure 8

Description

The present invention relates to a recording apparatus for detecting the amount of contents such as liquid and powder stored in a container and a control method thereof.

2. Description of the Related Art Conventionally, there has been known a detection method based on an electrostatic capacity method for detecting the liquid level in a tank by detecting the electrostatic capacity between the liquid stored in the tank and a sensor using the liquid as a dielectric. Generally, in the capacitance method, a sensor is placed near the container to detect the capacitance, but in reality there are various dielectrics around the sensor other than the liquid in the container. Therefore, the detected capacitance is affected by those dielectrics, which may reduce the accuracy of detection. In Patent Document 1, a plurality of height sensors corresponding to a plurality of liquid levels in the container are arranged in the tank, and the liquid level is calculated based on the capacitance value of each tip of the sensor. An arrangement is disclosed to increase the accuracy of the capacitance applied.

Patent No. 6132482

However, in the configuration of Patent Document 1, since it is necessary to arrange a plurality of sensors in the same tank, the size of the sensor as a whole may increase. Therefore, if the size of the tank is limited, the size of each sensor will be reduced and placed. Therefore, especially when applying to a small tank, the detection accuracy will decrease due to the reduction of the detection area of each sensor. there is a risk of

SUMMARY OF THE INVENTION The present invention has been made in view of the problems described above, and an object of the present invention is to improve the detection accuracy of the amount of content stored in a container.

As a means for solving the above problem, a storage section for storing liquid or powder to be supplied to a recording section that performs recording, a first detection means provided on a first outer surface of the storage section, and A second detection means provided apart from the reservoir, and a detection means for detecting the amount of the liquid or powder stored in the reservoir, wherein the detection means corresponds to the first detection means. and the second detection information obtained by the second detection means.

ADVANTAGE OF THE INVENTION According to this invention, the detection accuracy of the storage amount of the content in a container can be improved.

1 is a schematic diagram showing an overview of a recording apparatus according to a first embodiment; FIG. 1 is a schematic circuit configuration diagram of a printing apparatus according to a first embodiment; FIG. 4A is a schematic view of the ink tank with the sensor substrate attached in the first embodiment, viewed from the X direction; FIG. (b) It is the figure which looked at the sensor substrate from the Y direction in 1st Embodiment. 5 is a graph showing the relationship between the remaining amount of ink and the capacitance C1 of the sensor in the first embodiment; FIG. 2 is a conceptual diagram of the periphery of the ink tank according to the first embodiment; 7 is a graph showing the relationship between the remaining amount of ink and the capacitance C2 of the sensor in the first embodiment; FIG. 2 is a conceptual diagram around a reference sensor and an ink tank 108 according to the first embodiment; FIG. 3 is a schematic diagram showing the configuration of a remaining ink level detection unit according to the first embodiment; 4 is a flow chart of ink remaining amount detection according to the first embodiment.

(First embodiment)
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. In the following, as an example of a recording apparatus, the configuration of an inkjet printer will be described as a specific example. It can also be applied to a device that performs Moreover, it can also be employed in an apparatus that accommodates powder such as toner as a content in a container. In addition, the present invention is not limited to inkjet type recording apparatuses, and can be applied to electrophotographic type recording apparatuses and other types of recording apparatuses.

FIG. 1 is a schematic diagram showing an overview of an inkjet recording apparatus. The inkjet recording apparatus 100 (hereinafter referred to as the recording apparatus 100) feeds recording media stacked on a paper feed tray 103 provided on the rear surface of the recording apparatus 100 by a paper feed roller (not shown). After that, the recording medium is sandwiched between the conveying roller 109 and a pinch roller (not shown) driven by the conveying roller 109, and is conveyed in the Y direction in the figure while being guided and supported on the platen 110 by the rotation of the conveying roller 109. be. The conveying roller 109 is a metal roller processed so as to form fine irregularities on its surface so as to generate a large frictional force. The pinch roller is elastically biased against the conveying roller 109 by a pressing means such as a spring (not shown).

A platen 110 is arranged at a position facing the recording head 101, which is a recording unit. A platen 110 supports the back surface of the recording medium so as to maintain a constant or predetermined distance between the ink ejection portion (not shown) of the recording head 101 and the surface of the recording medium facing it. After the recording by the recording head 101 is completed, the recording medium conveyed to the platen 110 is sandwiched between a discharge roller (not shown) and a spur, which is a rotating member driven by the discharge roller, and discharged out of the recording apparatus 100 . be. The ejection roller is a rubber roller with a high coefficient of friction. The spur is elastically biased against the ejection roller by a pressing means such as a spring (not shown).

The print head 101 is mounted on the bottom of the carriage 102 so as to face the conveyed print medium, and has an ink ejection unit 81 for ejecting ink for each ink color. The carriage 102 is reciprocated in the X direction (main scanning direction) along guide rails 104 arranged vertically by driving means such as a motor. Note that the X direction refers to a direction orthogonal to the conveying direction (Y direction) of the recording medium in the horizontal plane.

The print head 101 ejects ink droplets while moving in the main scanning direction together with the carriage 102 to print an image for one band on the print medium on the platen 110 . After one band of image is printed, the print medium is conveyed in the conveying direction by a predetermined amount by the conveying roller 109 (intermittent conveying operation). By repeating the recording operation for one band and the intermittent conveying operation, an image is recorded on the recording medium based on the image data.

Further, a plurality of independent ink tanks 108 are fixed to the main body of the printing apparatus as reservoirs corresponding to the colors of ink ejected from the print head 101 . The ink tank 108 and the print head 101 are connected via a joint (not shown) by a supply tube (not shown) corresponding to each ink color. This makes it possible to individually supply the color ink contained in each ink tank 15 to the print head 101 corresponding to each ink color. An ink introduction portion 1101 for ink replenishment is provided at the top of each ink tank 108 , and the ink introduction portion 1101 is closed with a cap portion 1102 . When the ink tank 108 is replenished with ink, the user removes the cap portion 1102 from the ink introduction portion 1101 to open the ink introduction portion 1101 and replenish the ink.

In the vicinity of the ink tank 108, an ink remaining amount detection unit 216 (see FIG. 8) is provided as a detecting means for detecting the remaining amount of ink stored in each ink tank.

FIG. 2 is a schematic circuit diagram of the recording apparatus 100. As shown in FIG.

The printing apparatus 100 has a CPU 201 and controls communication of each block in the ASIC 202 via a CPU interface circuit connected to the CPU 201 . Image data processing by the ASIC 202 will be described below.

The recording apparatus 100 receives the image data transmitted from the external input device 200 at the external interface circuit 203 connected to the external input device 200 . The external interface circuit 203 includes interface circuits connected to the external input device 200, such as a USB circuit, a LAN interface circuit, and an IDE interface circuit (not shown). The external interface circuit 203 transfers the received image data to the memory control circuit 205 , and the memory control circuit 205 transfers the received image data to the SRAM 206 . The SRAM 206 is a work buffer, and stores print image data divided into specific sizes. The number of SRAMs 206 may be as many as the number of colors, or as many as the number of nozzles. Also, the SRAM 206 may not be an SRAM, and may be a DRAM, an MRAM, or the like.

The DDR 212 is a reception buffer externally attached to the ASIC 202, and stores image data processed by an image data processing circuit 207, which will be described later. The memory control circuit 205 also controls reading and writing of various data to the SRAM 206 and DDR 212 .

The image data processing circuit 207 receives the image data stored in the SRAM 206 from the memory control circuit 205 and performs image processing. The image processing referred to here includes processing such as boundary processing, edge processing, HV conversion, smoothing, and ejection failure interpolation, but other processing may also be performed. The image data processed by the image data processing circuit 207 is sent to the ejection image generation circuit 208 and converted into ejection image data in a format suitable for each nozzle of the print head 101 .

The transfer timing control circuit 210 multiplies the signal input from the encoder sensor 214 to generate a transfer timing signal, and the head interface circuit 209 transfers the ejection image data to the print head 101 based on this transfer timing signal.

An apparatus main body drive circuit 211 controls a motor 215 and a head unit lift mechanism (not shown) based on the operation of a transport control circuit 213 under the control of the CPU 201 .

The remaining ink detection unit 216 processes signals obtained from the sensor 303 (see FIG. 5) provided in the ink tank 108 and the reference sensor 706 and transmits the signals to the CPU interface circuit 204 . The CPU 201 performs arithmetic processing on the information received from the remaining ink detection unit 216 via the CPU interface circuit 204, and obtains remaining ink information in the ink tank 108. FIG.

The recording apparatus 100 also has an external UI device 217, which is a hardware unit provided with means such as panel keys, an LED, and an LCD for inputting operations by the user and for performing various notifications to the user. Information input by the user from the external UI device 217 is converted into data by the external UI interface circuit 218 , transmitted to the CPU interface circuit 204 , and processed by the CPU 201 . Conversely, data transmitted from the CPU interface circuit 204 can be converted by the external UI interface circuit 218 to drive an external UI device.

With the above configuration, the printing apparatus 100 can control the driving of the external UI device 217 after obtaining information on the amount of ink remaining in the ink tank 108, and notify the user of the amount of ink remaining in the ink tank.

Information regarding the configuration of the remaining ink detection unit 216 will be described below. For convenience of explanation regarding the present invention, the principle of liquid level detection using the capacitance method will be described first, and then the configuration related to the embodiment of the present invention will be described.

FIG. 3A is a schematic view of the ink tank 108 with the sensor substrate 305 attached, viewed from the X direction, and FIG. 3B is a view of the sensor substrate 305 viewed from the Y direction. Ink 301 is stored inside the ink tank 108 , and a sensor substrate 305 is mounted in contact with the ink tank 108 across an outer surface 302 constituting the ink tank 108 . At this time, it is desirable that the sensor substrate 305 is in close contact with the outer surface 302 of the ink tank 108 .

A sensor 303 is provided on the sensor substrate 305 . The sensors 303 are electrodes, and one or more are arranged on the sensor substrate 305 . By attaching the sensor substrate 305 to the ink tank 108 as described above, the sensor 303 faces the ink 301 and air 304 in the ink tank 108 (inside the reservoir) across the outer surface 302 .

Let ε1 be the dielectric constant of the ink 301, ε2 be the dielectric constant of the air 304, S1 be the area of the sensor 303 facing the ink 301, S2 be the area of the sensor 303 facing the air 304, and the ink Let d be the thickness of the tank 108 . At this time, the capacitance C1 of the sensor 303 can be expressed by (Equation 1).
C1=ε1(S1/d)+ε2(S2/d) (Formula 1)
Assuming that the total area of the sensor 303 is S, S=S1+S2, so Equation 1 can be further expressed as Equation 2.
C1=(ε1−ε2)(S1/d)+ε2(S/d) (Formula 2)
FIG. 4 is a graph showing the relationship between the remaining amount of ink and the capacitance C1 of the sensor 303. As shown in FIG. Since S1 in the above equation (2) is the area of the sensor 303 facing the ink 301, the amount of ink remaining in the ink tank 108 and S1 are in a proportional relationship. Accordingly, the electrostatic capacitance C expressed by (Equation 2) also has a relationship proportional to the amount of ink remaining in the ink tank 108, and is expressed as shown in the graph of FIG. However, in reality, dielectrics exist around the sensor 303 in addition to the ink 301 and the air 304 in the ink tank 108, causing an offset in the detected value of the capacitance.

FIG. 5 is a conceptual diagram around the ink tank 108. As shown in FIG. 5A is a conceptual diagram of the ink tank 108 viewed from the X direction, and FIG. 5B is a conceptual diagram of the ink tank viewed from the Y direction. The dielectric 501 other than the ink 301 and the air 304 in the ink tank 108 is conceptually shown here as one circle, but generally there are a plurality of them around the ink tank 108 and they do not necessarily have a shape. not a thing Examples of the dielectric 501 include equipment parts and conductor parts (not shown) provided on the sensor substrate 305 and parts (not shown) in the recording apparatus 100 arranged around the sensor 303 . Moisture in the air around the ink tank 108 also acts as a dielectric 501 .

In particular, moisture in the air acting as the dielectric 501 has a large effect on the capacitance C1 of the sensor 303 . Condensation occurs not only due to the moisture contained in the air around the ink tank 108 but also due to the relationship between the temperature and humidity of the air and the temperature of the above-mentioned equipment, conductors, parts, etc. This condensation forms the dielectric 501 . It may work. In other words, the capacitance C1 of the sensor 303 is affected by the humidity and temperature around the ink tank 108 . In addition, when the material constituting the material portion and the conductor portion of the sensor substrate 305 has hygroscopicity, the higher the hygroscopicity, the more the sensor substrate 305 is affected by humidity.

Here, if the capacitance generated between the sensors 303 by the dielectric 501 is Cex, the capacitance C2 of the sensor 303 in the state where the offset is caused by the dielectric 501 is expressed as (Equation 3) .
C2=(ε1−ε2)(S1/d)+ε2(S2/d)+Cex (Formula 3)
FIG. 6 is a graph showing the relationship between the remaining amount of ink and the capacitance C2 of the sensor 303 according to (Equation 3). At this time, the capacitance C2 is offset by Cex from the capacitance C1 when the dielectric 501 does not exist. Therefore, the remaining amount of ink in the ink tank 108 cannot be detected accurately.

FIG. 7 is a conceptual diagram around the reference sensor 706 and the ink tank 108 . 7A is a conceptual diagram of the ink tank 108 viewed from the X direction, and FIG. 7B is a conceptual diagram of the ink tank viewed from the Y direction. The printing apparatus 100 according to the present embodiment is configured to include a reference sensor 706 serving as a reference, in addition to the sensor 303 . Similar to the liquid level sensor 703 , the reference sensor 706 has one or more sensors arranged on a sensor substrate (not shown) and is spaced apart from the ink tank 108 . Note that the sensor substrate on which the reference sensor 706 is configured may be part of a substrate that configures another component, or may be an independent substrate that includes only the reference sensor 706 .

The reference sensor 706 is spaced apart by a distance that is not affected by the ink 301 and air 304 in the ink tank 108, and the capacitance Cref of the reference sensor 706 is not affected by increases or decreases in the amount of ink in the ink tank 108. . On the other hand, since the dielectric 501 exists around the reference sensor 706 , the capacitance Cref is affected by the dielectric 501 .

In general, the greater the distance between the sensor and the dielectric, the smaller the influence of the dielectric on the capacitance of the sensor. Therefore, the longer the distance between the reference sensor 706 and the ink tank 108 is, the smaller the influence of the ink 301 on the electrostatic capacitance Cref. However, in this embodiment, as described above, the capacitance Cref of the reference sensor 706 is used to correct the capacitance C2 of the sensor 303 provided on the outer surface 302 of the ink tank 108 as described later. Therefore, it is desirable that the environment at the position where the reference sensor 706 is arranged and the environment at the position where the sensor 303 is arranged are close to each other.

Here, a plurality of dielectrics 501 are present around the ink tank 108 as described above. Therefore, if the reference sensor 706 and the sensor 303 are too far apart, the state of the dielectric 501 existing around the reference sensor 706 and the state of the dielectric 501 existing around the sensor 303 will be different. there is a possibility.

For example, considering the moisture in the air around the ink tank 108 as the dielectric 501, if the location of the reference sensor 706 and the location of the sensor 303 are too far apart, there is a risk that the respective locations will have different humidity levels. . In such a case, the influence of the dielectric 501 on the reference sensor 706 and the influence of the dielectric 501 on the sensor 303 are different, so the capacitance C2 of the sensor 303 may not be corrected appropriately. Therefore, it is desirable to arrange the reference sensor 706 so that the states of the dielectric 501 affected by the reference sensor 706 and the sensor 303 are similar.

Also, the capacitance of the reference sensor 706 may be affected by the environment outside the printing apparatus 100 . Therefore, it is desirable that the reference sensor 706 is arranged at a position not close to the outer surface of the recording apparatus 100 . For example, when the ink tank 108 is arranged on the front side in the Y direction of the printing apparatus 100 as shown in FIG. is desirable. Note that the reference sensor 706 and the sensor 303 do not have to face each other, and may be arranged in a crossed or twisted relationship.

Assuming that the electrode area of the reference sensor 706 is Sref, the capacitance Cref detected by the reference sensor 706 can be expressed as in (Equation 4).
Cref=Cex(Sref/S) (Formula 4)
Here, when (Equation 4) is transformed with respect to Cex, (Equation 5) is obtained. Furthermore, when Cex in (Equation 5) is subtracted from (Equation 3) representing the capacitance C2 of the sensor 303 with an offset, (Equation 6) is obtained.
Cex=Cref(S/Sref) (Formula 5)
C2-Cex=(ε1-ε2)(S1/d)+ε2(S2/d)+Cex-Cref(S/Sref)
=(ε1−ε2)(S1/d)+ε2·(S2/d)+Cex−Cex
=(ε1-ε2)(S1/d)+ε2·(S2/d)
= C1 (Formula 6)
As described above, the value of C2 is corrected by subtracting the capacitance Cref of the reference sensor 706 from the capacitance C2 of the sensor 303 with offset. As a result, the capacitance C1 based on the amount of ink 301 in the ink tank 108 without offset by the dielectric 501 is obtained.

FIG. 8 is a schematic diagram showing the configuration of the remaining ink detection unit 216. As shown in FIG. Sensors 303a-303n are attached to the outer surface 302 of each of the n ink tanks 108a-108n. A reference sensor 706 is provided at a position spaced apart from any ink tank 108 . The sensors 303a to 303n provided in the sensors 303a to 303n may be provided on the same sensor substrate 305, or may be provided on individual sensor substrates.

A capacitance detection board 803 having a capacitance detection circuit 802 and the sensors 303a to 303n are connected via conductors 801a to 801n. Also, the reference sensor 706 and the capacitance detection board 803 are connected via a conductor R. The capacitance C2, which is the detection information of the sensor 303, is detected by the capacitance detection circuit 802 via the conductor 801, and the capacitance Cref is detected by the capacitance detection circuit 801 as the detection information of the reference sensor 706 via the conductor 801. Detected at 802 . The electrostatic capacitances C2 and Cref detected by the electrostatic capacitance detection circuit 802 are converted into electrical signals within the electrostatic capacitance detection circuit 802 and input to the ASIC 202 . Then, capacitance correction processing is performed in the ASIC 202 based on the input information of each capacitance.

FIG. 9 is a flow chart of ink remaining amount detection in this embodiment. Here, the remaining amount of ink detection processing for one ink tank 108 will be described. to run.

When the remaining ink amount detection process is started, first in S901, the capacitance detection circuit 802 in the ink remaining amount detection unit 216 converts the capacitance C2 in the sensor 303 into an electric signal, and the converted detection value is converted into an electric signal. Input to ASIC 202 . Next, in S902, the capacitance detection circuit 802 in the remaining ink detection unit 216 converts the capacitance Cref in the reference sensor 706 into an electric signal and inputs the converted detection value to the ASIC 202, as in S901. .

Subsequently, in S<b>903 , the ASIC 202 performs arithmetic processing using the capacitance C<b>2 of the sensor 303 and the capacitance Cref of the reference sensor 706 input to the ASIC 202 . At this time, the ASIC 202 performs arithmetic processing according to the correction formula (Equation 6). The value obtained by this arithmetic processing is used as the ink remaining amount value.

In S<b>904 , the ASIC 202 compares the ink remaining amount value obtained in S<b>903 with a threshold value INKLow stored in advance in the ASIC 202 . As a result of the comparison, if the ASIC 202 determines that the remaining ink level is equal to or less than INKLow (NO in S904), the process advances to S905 to notify the user that the remaining ink level is Low. The ASIC 202 issues an instruction to the external UI device 217 for this notification, and the notification is executed as lighting of an LED or display on an LCD provided in the recording apparatus 100 . After notifying the user that the remaining ink level is low in S905, the process returns to S901 to execute the remaining ink level detection flow again.

If it is determined in S904 that the remaining amount of ink is greater than INKLow (YES in S904), the process proceeds to S906. In S906, the remaining amount of ink is notified to the user. As with the notification to the user in step S905, the ASIC 202 instructs the external UI device 217 to turn on the LED or display on the LCD provided in the recording apparatus 100. FIG. Alternatively, the external input device 200 may notify the remaining ink level information by the ASIC 202 instructing the external input device 200 .

Note that the notification of the remaining amount of ink to the user in S905 and S906 may be performed by the ASIC 202 instructing the external input device 200 and the external input device 200 notifying the user. Also, the notification by the external UI device 217 and the notification by the external input device 200 may be used together.

(Second embodiment)
The second embodiment will be described below, but the description of the same configuration as that of the first embodiment will be omitted.

The ink remaining amount detection unit 216 in this embodiment has a configuration as shown in FIG. 8 in the same manner as in the first embodiment. be. At this time, the capacitance detected by the capacitance detection circuit 802 when detecting the remaining amount of ink in the ink tank 108a is the sum of the capacitance of the sensor 303a and the capacitance of the lead wire 801a.

The lengths of the conductors 801a to 801n correspond to the distances between the ink tanks 108a to 108n and the capacitance detection board 803. FIG. Also, since the length of the conductor R corresponds to the distance between the reference sensor 706 and the capacitance detection board 803, if the conductors 801a to 801n and the conductor R have different lengths, the capacitances will also differ. Furthermore, the capacitances of the conductors 801a to 801n and the conductor R may differ depending on conditions such as thickness and material.

When detecting the remaining amount of ink in the ink tank 108a, the ASIC 202 executes the correction process of (Equation 6) in a state in which the capacitances of the conductors 801a and R are included as described above. That is, the sum of the capacitances of the sensor 303a and the conductor 801a is detected as C2, and the sum of the capacitances of the reference sensor 706 and the conductor R is detected as Cref. Since Cref is subtracted from C2 in this state, an error corresponding to the difference between the capacitance of the conductor 801a and the capacitance of the conductor R occurs.

Here, the capacitance of the conductor 801a and the conductor R is a known capacitance determined by the material and length of the conductor. Therefore, by storing the capacitances of the conducting wire 801a and the conducting wire R in advance in the ASIC 202 and subtracting the capacitance of each conducting wire when performing the correction processing of (Equation 6), it is possible to prevent the above-described error from occurring. can. In the above description, the case of detecting the remaining amount of ink in the ink tank 108a has been described. In other words, by storing the capacitance of the conductors 801a to 801n and the capacitance of the conductor R in the ASIC 202, it is possible to prevent the occurrence of errors due to the capacitance of the conductors.

In the case of detecting the remaining amount of ink in the ink tank 108a, when correcting the error due to the capacitance of the conductive wire, the correction formula is assuming that the capacitance of the conductive wire R is CLR and that of the conductive wire 801a is CLa. 7).
C1 = (C2-CLa)-(Cref-CLR)
= ((ε1−ε2)(S1/d)+ε2(S2/d)+Cex−CLa)−(Cref(S/Sref)−CLR) (Formula 7)
Even when measuring the remaining amount of ink in the ink tanks 108b to 108n, the capacitance of each of the conductors 801a to 801n stored in the ASIC 202 is used to correct the detection error due to the capacitance of the conductor by performing the correction of (Equation 7). occurrence can be prevented.

As in the first embodiment, the remaining amount of ink is detected as shown in the flowchart of FIG. 9 in this embodiment, but in S903, the ASIC 202 performs arithmetic processing according to the correction formula (Equation 7). The value obtained by this arithmetic processing is used as the ink remaining amount value. The processing after S904 is performed in the same manner as in the first embodiment.

REFERENCE SIGNS LIST 100 recording device 108 ink tank 216 remaining ink detection unit 301 ink 303 sensor 706 reference sensor

Claims (11)

a storage section for storing liquid or powder to be supplied to a recording section that performs recording;
a first detection means provided on the first outer surface of the reservoir;
a second detection means spaced apart from the reservoir;
and detecting means for detecting the amount of liquid or powder stored in the storage unit,
The detection means detects the amount of liquid or powder stored in the storage section based on first detection information by the first detection means and second detection information by the second detection means. A recording device characterized by: a storage section for storing liquid or powder to be supplied to a recording section that performs recording;
a first detection means provided on the first outer surface of the reservoir;
a second detection means spaced apart from the reservoir;
and detecting means for detecting the amount of liquid or powder stored in the storage unit,
The detection means detects the amount of liquid or powder stored in the storage section by correcting the information acquired by the first detection means based on the information acquired by the second detection means. A recording device characterized by: 3. A recording apparatus according to claim 1, wherein said first detection information and said second detection information include information relating to capacitance. The detection means acquires third information regarding the amount of liquid or powder stored in the storage section from the first detection information and the second detection information, and obtains the third information and a predetermined 4. The recording apparatus according to any one of claims 1 to 3, wherein the amount of liquid or powder stored in said storage section is detected based on a threshold value. 5. A recording apparatus according to claim 1, further comprising a detection circuit, wherein said first detection means and said second detection means are connected to said detection circuit via a conductor. . 6. A recording apparatus according to claim 5, wherein said detection means further detects the amount of liquid or powder stored in said storage section based on information relating to the capacitance of said conductor. 7. A recording apparatus according to any one of claims 1 to 6, wherein said first sensing means and said second sensing means comprise at least one electrode. 8. A recording apparatus according to any one of claims 1 to 7, wherein said second detection means is provided on the back side of said storage section and is provided apart from the back side of said storage section. 9. The recording according to any one of claims 1 to 8, wherein the detection means notifies the user of the result of detecting the amount of the liquid or powder stored in the storage part by means of notification means. Device. a storage section for storing liquid or powder to be supplied to a recording section that performs recording;
a first detection means provided on the first outer surface of the reservoir;
a second detection means spaced apart from the reservoir;
A control method for a recording apparatus comprising a detection means for detecting the amount of liquid or powder stored in the storage section,
a first detection step in which the detection means acquires first detection information from the first detection means;
a second detection step in which the detection means acquires second detection information from the second detection means;
and a detection step of detecting the amount of the liquid or powder stored in the storage section based on the first detection information and the second detection information. a storage section for storing liquid or powder to be supplied to a recording section that performs recording;
a first detection means provided on the first outer surface of the reservoir;
a second detection means spaced apart from the reservoir;
A control method for a recording apparatus comprising a detection means for detecting the amount of liquid or powder stored in the storage section,
detecting the amount of liquid or powder stored in the storage portion by correcting the information acquired by the first detection means by the detection means based on the information acquired by the second detection means; A control method comprising:

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