JP2005238710A - Imaging device - Google Patents

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Publication number
JP2005238710A
JP2005238710A JP2004053235A JP2004053235A JP2005238710A JP 2005238710 A JP2005238710 A JP 2005238710A JP 2004053235 A JP2004053235 A JP 2004053235A JP 2004053235 A JP2004053235 A JP 2004053235A JP 2005238710 A JP2005238710 A JP 2005238710A
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Japan
Prior art keywords
operation
recovery
performed
recording head
document
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Withdrawn
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JP2004053235A
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Japanese (ja)
Inventor
Yoshimune Nakagawa
Naoji Otsuka
善統 中川
尚次 大塚
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Canon Inc
キヤノン株式会社
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Application filed by Canon Inc, キヤノン株式会社 filed Critical Canon Inc
Priority to JP2004053235A priority Critical patent/JP2005238710A/en
Publication of JP2005238710A publication Critical patent/JP2005238710A/en
Application status is Withdrawn legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide an image forming apparatus in which a user can copy in a short time without performing recovery processing more than necessary.
When it is detected that a copy preparation operation has been performed, it is determined whether or not a recovery process needs to be executed, and the recovery process is executed according to the determination.
[Selection] Figure 4

Description

  The present invention relates to a multifunction inkjet recording apparatus including an image reading unit and an inkjet recording unit, and to a method for reducing consumed ink and shortening a first copy time.

  2. Description of the Related Art Conventionally, inkjet recording apparatuses have been widely used in various apparatuses for reasons such as low noise, low running costs, and easy downsizing of the apparatus. In recent years, devices (multifunction printers) that can be used not only as printing functions but also as copiers and scanners have been devised as well-used devices by including an inkjet recording unit and an image reading unit. . Further, an MFP having a FAX function by providing a communication function with the outside has been devised for a multi-function printer (hereinafter also referred to as MFP).

  As with an inkjet recording apparatus, an MFP equipped with an inkjet recording unit may cause clogging at the ejection port that ejects ink depending on the storage state of the recording head, resulting in non-ejection and ejection volume that does not eject ink. In some cases, ejection failure may occur such that the landing position shifts. Other causes include replacement of the ink tank so that the ink chamber is not sufficiently filled with ink or air is mixed into the flow path from the ink tank to the liquid chamber of the recording head. May cause non-ejection and ejection failure.

  Therefore, similarly to the ink jet recording apparatus, the MFP is provided with a recovery processing means (also referred to as a cleaning means) in order to remove the cause of non-ejection and ejection failure and maintain good ejection performance. The recovery processing by the recovery processing means includes preliminary discharge for discharging ink from the discharge port, suction recovery for forcibly discharging the ink in the print head by applying a negative pressure to the print head, and rubber adhering to the formation surface of the discharge port For example, wiping with a member.

  Similar to the inkjet recording apparatus, the conventional MFP performs the above recovery process when the power is turned on, when the front cover open / close operation is detected, and when the ink tank replacement switch is pressed to detect that the ink tank or the recording head has been replaced. Recovery processing was performed every time (for example, refer to Patent Document 1).

Also, an MFP has been devised that determines whether or not it is necessary to perform recovery processing, and executes recovery processing of an appropriate recovery amount by performing recovery processing when a print command is received (for example, Patent Documents). 2).
Japanese Patent Laid-Open No. 2001-199087 JP 2001-232815 A

  However, in the method described in Patent Document 1 described above, the recovery process is executed every time a predetermined operation such as when the power is turned on or when the front cover opening / closing is detected. Even if there is no recovery process, the ink is consumed more than necessary because the recovery process is executed. For this reason, there has been a problem that the running cost increases and a large storage tank is required to store the ink consumed for the recovery process, and the apparatus main body is enlarged.

  In the method described in Patent Document 2, the recovery process is performed only when it is necessary to perform the recovery process. However, since the recovery process is executed after receiving the print command, the waiting time of the user until the end of recording is reached. (This is the time from when the user issues a print start command until the end of recording, which is also referred to as the “fair copy time”).

  The present invention has been made to solve these problems, and an object of the present invention is to provide an image forming apparatus (multifunction printer) that can perform copying in a short time without performing recovery processing more than necessary. ) To provide.

  The present invention includes a recording head that ejects ink and an image reading unit that generates image data by reading a document on a document table, and forms an image based on the image data using the recording head. In the apparatus, a recovery unit that performs a recovery operation for maintaining a good ink discharge state from the recording head, a storage unit that stores information relating to the recovery operation of the recording head, and a reading operation of the document by the image reading unit Prior to the start of the recording head, based on the determination means for determining whether or not the operation by the operator has been performed, the determination result by the determination means and the information stored in the storage means, the recovery operation of the previous recording head Recovery control means for performing the above.

  The present invention also provides a recording head for ejecting ink, an image reading means for reading a document on a document table to generate image data, and a recovery operation for maintaining a good ink ejection state from the recording head. A recovery method in an image forming apparatus that includes a recovery unit and a memory that stores information related to the recovery operation, and forms an image based on the image data using the recording head, wherein the image is read by the image reading unit The determination step of determining whether or not the operation by the operator has been performed prior to the start of the reading operation, and the recovery of the recording head based on the determination result of the determination step and the information stored in the memory And a recovery control step for performing the operation.

  According to the present invention, during copying, an operation performed by an operator prior to the start of an original reading operation is detected, and when recovery processing is necessary, recovery processing is performed before copying is started, thereby recovering more than necessary. It is possible to provide an image forming apparatus in which a user can perform copying in a short time without performing processing.

(First embodiment)
The first embodiment of the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is an explanatory diagram of a configuration of an image forming apparatus (MFP: multi-function printer) including an inkjet recording unit.

  As shown in FIG. 1, the multifunction printer applicable in the present invention has an image reading device unit 101 in the upper portion and an ink jet recording device portion 102 in the lower portion, and is read by the image reading device portion 101. The image information can be transmitted to the inkjet recording apparatus unit 102 and printed by the inkjet recording apparatus 102.

  The image reading apparatus unit 101 includes a document table 103, a document table cover 104, and a document table cover open / close switch 105 that detects opening / closing of the document table cover 104. The image reading apparatus 101 reads a document placed on a document table 103 and generates image information. Normally, the document table cover 104 is closed and the document is pressed against the document table 103. Perform a read operation. In the image reading operation, an image of a document placed on a document table is read using a CCD sensor to generate image data.

  The ink jet recording apparatus unit 102 includes an ink tank 106, a recording head 107, an opening 108, and a carriage 109. In this MFP, when the ink tank 106 or the recording head 107 is replaced, the image reading device unit 101 is rotated and the opening 108 is used. Note that the remaining amount of the ink tank 106 is detected using an optical sensor, but the replacement of the ink tank can be detected from the change in the output value of the optical sensor. In addition, the exchange and desorption of the recording head 107 can be detected based on the signal level of the electrical connecting portion at the contact point between the recording head 107 and the carriage 109.

  FIG. 2 is a perspective view of the ink jet recording apparatus unit 102.

  In FIG. 2, 201 is an ink tank and 202 is a recording head. The ink tank 201 stores four color inks of black, cyan, magenta, and yellow, and the recording head 202 has nozzle arrays corresponding to the inks. Reference numeral 203 denotes a paper feed roller that rotates in the direction of the arrow in the figure while holding the recording medium P together with the auxiliary roller 204, and transports the recording medium P in the y direction (sub-scanning direction) as needed. Reference numeral 205 denotes a pair of paper feed rollers for feeding a recording medium. The pair of paper feed rollers 205, like the paper feed roller 203 and the auxiliary roller 204, rotate while holding the recording medium P. However, the rotation speed is lower than that of the paper feed roller 203 to apply tension to the recording medium. Can be made. Reference numeral 206 denotes a carriage that supports the four ink tanks 201 and performs these scans together with printing. The carriage 206 is located outside the recording area and at the home position h indicated by a broken line in FIG. 2 when printing is not performed or when the recovery process of the recording head 202 is performed.

  The ejection state of the recording head 202 can be avoided by avoiding non-ejection in which ink is not ejected from the ejection port, an unstable amount of ink ejected from the ejection port, or ejection failure in which the landing positions of ejected ink droplets are shifted. As recovery processing performed in order to keep good, there are suction recovery processing, wiping processing, and preliminary ejection.

  The suction recovery process is performed in order to avoid ejection failure or non-ejection caused by air mixed into the liquid chamber or flow path in the recording head 202 or the ink in the recording head 202 being dried and thickened. Furthermore, a cap (not shown) is brought into contact with the ejection port surface, and negative pressure is applied to the recording head 202 by the suction pump 207, whereby the air or the thickened ink in the recording head 202 is sucked and discharged.

  The wiping process is performed in order to avoid discharge defects caused by ink droplets or dust adhering to a surface (also referred to as a nozzle surface) on which an ejection port is formed by performing a suction recovery process or ejecting ink. In this process, the blade 208 is brought into contact with the ejection port surface and moved in the y direction in FIG. 2 to wipe off ink droplets and dust adhering to the ejection port surface.

  Preliminary discharge is an operation that discharges a predetermined number of ink droplets at a predetermined discharge frequency in order to avoid non-discharge and defective discharge that occur when ink droplets are discharged from a discharge port that has not been discharged for a certain period of time. is there. This preliminary ejection is performed on a preliminary ejection receptacle provided at a position facing the recording head 102 at the home position h.

  FIG. 3 is a block diagram showing the configuration of the control system of the MFP applicable in the present embodiment.

  In FIG. 3, a CPU 300 executes control of each part of the apparatus and data processing via a main bus line 305. That is, the CPU 300 controls data processing, head driving, and carriage driving via the following units in accordance with a program stored in the ROM 301.

  The RAM 302 is used as a work area for data processing or the like by the CPU 300, and a flag area is provided for presenting information indicating whether or not recovery processing is necessary. In addition, these memories include a hard disk and the like.

  The EEPROM 318 is a non-volatile memory having an area for retaining the contents of the flag area provided in the RAM 302 even when the power is turned off.

  The ink tank sensor 320 and the cover switch sensor 321 are sensors used to determine whether or not the ink tank has been replaced. The ink tank replacement is performed by a change in the output value of the ink tank sensor before and after the cover switch is turned ON / OFF. It is determined whether or not When it is determined that the ink tank has been replaced, information on the necessity of recovery processing is set in the flag area in the RAM 302, and this information is also stored in the EEPROM 318. Further, the recording head sensor 323 can detect whether the recording head is exchanged or detached based on the electrical contact state between the recording head 202 and the carriage. Is set in the flag area, and is also stored in the EEPROM 318. A sensor that detects whether or not the image reading apparatus unit 101 has been rotated may be used as a cover switch for detecting replacement of the ink tank.

  The document table cover open / close switch 322 is a switch for detecting the open / closed state of the document table cover, and a mechanical switch, an electrical contact type sensor, an optical sensor, or the like can be used. When the document table cover is open, the document table cover open / close switch 322 is turned on, and when it is closed (when the document is not pressed against the document table 103), it is turned off. This is used to determine whether or not the user intends to perform a copying operation by opening and closing the document table cover due to the change in the open / close state of the document table cover.

  The timer 319 is used, for example, when acquiring the time when the recovery process was last performed. The time acquired from the timer is set in a predetermined area in the RAM 302 and the information is also stored in the EEPROM 318. Further, even when a predetermined time has elapsed from the time when the recovery process was last performed, the information necessary for the recovery process is set in the flag area in the RAM 302 and this information is also stored in the EEPROM 318. The timer 319 is driven by a battery (not shown), and can continue to be driven even when the MFP is turned off.

  A CPU 330 that controls the image reading device unit 101 stores an input image processing unit 331 and is connected to a CCD sensor 332, a CCD sensor driving unit 333, an image output unit 334, and a main bus line 305. The CCD sensor driving unit controls input driving of the CCD sensor. The input image processing unit 331 performs processing such as A / D conversion and shading correction on the signal from the CCD sensor 332. The image processed by the input image processing unit 331 is sent to the image input unit 303 via the output unit 334.

  The image input unit 303 has an interface with the image reading device unit 101 and the host, and temporarily holds an image input from the image reading device and the host. Here, the host is an external device connected to the MFP, such as a PC or a digital camera. The image signal processing unit 304 executes data processing such as color conversion and binarization in order to generate recording data from the image stored in the image input unit 303. The operation unit 306 includes an input switch and the like, and the user can issue an instruction to set the number of copies and start copying from the operation unit 306.

  The recovery system control circuit 307 controls the recovery operation of the suction recovery process, the wiping process, and the preliminary discharge according to the recovery process program stored in the RAM 302 and the recovery process necessity information (flag).

  The recovery system motor 308 is driven during the recovery process, and drives the cleaning blade 309 during the wiping process, and drives the cap 310 and the suction device 311 during the suction recovery process. The cleaning blade 309, the cap 310, and the suction device 311 may be driven during a plurality of recovery processes.

  The head drive control circuit 315 controls the drive of the ink ejection electrothermal converter of the recording head 313 and controls the recording head 313 to eject ink for preliminary ejection and recording. In addition, a heat retaining heater is provided on the substrate on which the electrothermal transducer for ink ejection of the recording head 313 is provided, and the ink temperature in the recording head can be heated and adjusted to a desired set temperature. Further, the thermistor 312 is provided on the substrate in the same manner as the heat retaining heater, and measures the ink temperature inside the recording head. Note that the thermistor 312 may be provided outside the substrate, or may be in the vicinity of the periphery of the recording head. The carriage drive control circuit 316 and the paper feed control circuit 317 control the driving of the carriage motor and the paper feed motor, respectively, to move the carriage and feed the paper so that an image is formed on the recording medium. .

  Next, a detailed sequence of the MFP in the present embodiment will be described.

  FIG. 4 shows a processing procedure of the MFP from when the MFP is turned on (ON) until the printing operation is started.

  First, in St1, when the user turns on the MFP (turns it on), the soft power of the MFP is turned on. Next, in St2, various initialization operations such as carriage drive control, paper feed drive control, and image reading device unit are performed in response to power ON.

  In St3, it is detected whether or not the document table cover is opened and closed. When the user opens the document table cover in preparation for the copy operation, the output value from the document table cover opening / closing switch changes from OFF to ON, and therefore it can be detected that the document table cover is opened. If the platen cover is open from the beginning, the platen cover can be opened and closed even when the user closes the open platen cover after placing the document on the platen to prepare for the copy operation. Since the output value from the switch changes from ON to OFF, it is determined that the copy operation is prepared even when it is detected that the document table cover is closed. Thus, at St3, whether the output value from the document table cover open / close switch has changed from OFF to ON (operation to open the document table cover) or has changed from ON to OFF (operation to close the document table cover). Detect whether or not. If it is determined that the document table cover opening / closing operation is not performed in St3, it is determined that the copy process is not prepared and it is not determined whether the recovery process is performed, and the process proceeds to St7. Here, when the user detects that the document table cover has been opened and closed, the CPU 300 determines that the operator has performed an operation prior to the start of the document reading operation associated with the copying operation.

  When it is detected that the opening / closing operation of the document table cover is performed in St3, it is determined in St4 whether or not the recovery process is performed with reference to the recovery process information stored in the RAM 302 or the EEPROM 318. The recovery process information is information (flag) indicating whether or not the recovery process is necessary. Further, the recovery process information may be information indicating the amount of recovery or information indicating the type of recovery process such as suction recovery process. When it is determined in St4 that the recovery process is unnecessary, the process returns to St3. If it is determined that the recovery process is necessary, appropriate processes from the suction recovery process, the wiping process, and the preliminary discharge recovery process are executed in St5, and the recovery process information is written in the RAM 302 and the EEPROM 318 in St6. At this time, the content written in the RAM 302 may be copied to the EEPROM 318.

  Next, in St7, it is determined whether or not a print start command is received. If no print start command is received, the process returns to St3. If the print start command is received in St7, the recovery processing information in the RAM 302 or the EEPROM 318 is referred to in St8 as in St4. In subsequent St9 and 10, similarly to St5 and 6, the recovery operation according to the recovery processing information and the writing of information to the memory are executed.

  Next, in St11, the printing operation is started.

  By doing as described above, it is possible to perform a recovery operation of an appropriate recovery amount at an appropriate time from when the power is turned on until the copy operation is performed. In the present embodiment, the processing procedure from when the power is turned on to the first copy operation is shown. However, when the first copy operation is completed, the process returns to St3 so that the second and subsequent copy operations can be performed. Recovery operation can be performed at an appropriate time.

  St8 to St10 are processes provided so that an appropriate recovery process is performed when a print operation other than the copy operation, for example, print data received from a host device such as a PC connected to the MFP is printed. .

  As described above, according to the present embodiment, when the opening / closing of the platen cover at the time of preparing for copying is detected, the recovery process is executed according to the necessity of the recovery process, thereby performing the recovery process more than necessary. Therefore, wasteful consumption of ink can be reduced, and the problem of increased running cost can be solved. Furthermore, since recovery processing is performed when preparation for copying is performed, it is possible to shorten the time from when a copy operation is instructed until recording is performed, and to solve the problem of increasing the first copy time Is possible.

(Second Embodiment)
In the first embodiment, whether or not the copy preparation operation is performed is determined by detecting the opening and closing of the document table cover by the user with the document table cover opening / closing switch. In an MFP including a document conveying device that sequentially conveys the original document to the document table, it is determined whether a copy preparation operation is being performed by a document detection switch provided in the document conveying device.

  FIG. 5 is an explanatory diagram of the configuration of the MFP. In FIG. 5, the same components as those in FIG.

  On the upper part of the document table cover 104 of the image reading unit 101, a document conveying device 501 (ADF: auto document feeder) that sequentially conveys a plurality of documents placed on the document tray 502 to the document table during an image reading operation. Is provided). The document tray 502 is provided with a document detection switch 503 that detects whether or not a document is set and whether or not a document is present.

  The control system of the MFP of this embodiment includes a document detection switch 503 instead of the document table cover opening / closing switch 322 in the first embodiment, and the rest is the same as the control system of the MFP of the first embodiment. is there. The document detection switch 503 outputs ON when a document is placed on the document tray 502, and outputs OFF when a document is not placed on the document tray 502. When the output value from the document detection switch 503 changes from OFF to ON, it is determined that the document is placed on the document tray by the user.

  FIG. 6 shows a processing procedure of the MFP from when the MFP is turned on in this embodiment until the printing operation is started. Since steps other than St3 are the same as those in the first embodiment (FIG. 4), description thereof will be omitted.

  In St3, it is detected whether or not a document is placed on the document tray. When the user places a document on the document tray in preparation for the copy operation, the output value from the document detection switch changes from OFF to ON, so that it can be detected that the document is placed. When a document is taken from the document tray, the output value of the document detection switch changes from ON to OFF, but it is not determined that a copy preparation operation is being performed. When the output value of the document detection switch does not change from ON to ON and from OFF to OFF, it is determined that the document on the document tray has not been moved, and it is not determined that a new copy preparation operation has been performed. In St3, if it is determined that a document is placed on the document tray and a copy preparation operation is performed, the process proceeds to St4. If it is determined that a copy preparation operation is not performed, the process proceeds to St7.

  As described above, also in this embodiment, when it is detected that a copy preparation operation for placing a document on the document tray has been performed, the recovery process is executed according to whether or not the recovery process is necessary, thereby recovering more than necessary. Since no processing is performed, wasteful consumption of ink can be reduced, and the problem of increased running costs can be solved. Furthermore, since recovery processing is performed when preparation for copying is performed, it is possible to shorten the time from when a copy operation is instructed until recording is performed, and to solve the problem of increasing the first copy time Is possible.

(Third embodiment)
In the first embodiment, whether or not the copy preparation operation is performed is determined by detecting the opening and closing of the document table cover by the user with the document table cover opening / closing switch. It is characterized in that whether or not a copy preparation operation is being performed is detected by detecting the opening and closing of the document table cover based on a change in the amount of light received by the document table in the apparatus unit.

  An MFP applicable to this embodiment is almost the same as that of the first embodiment shown in FIG. 1, but does not require an original table cover switch.

  The control system of the MFP of this embodiment includes an input light detection switch instead of the document table cover opening / closing switch 322 in the first embodiment, and other than that is the same as the control system of the MFP of the first embodiment. is there. This input light detection switch is a switch for detecting the open / closed state of the document table cover. The output value is turned ON when a predetermined amount or more of light is input (received) to the image reading unit, and the document table is turned on. It can be determined that the cover is open. Further, it is possible to determine that the output value when the light less than a predetermined amount is input to the image reading apparatus is OFF and the document table cover is closed. Based on the change in the output value of the input light detection switch, it can be determined whether or not the user has opened and closed the document table cover, and it can be determined whether or not a copy preparation operation is being performed as in the first embodiment. . Since the processing when it is detected that the copying operation is being performed is the same as that in the first embodiment, a description thereof will be omitted.

  Also in this embodiment, when the opening / closing of the document table cover is detected from the amount of light incident on the image reading unit, and when it is detected that the copy preparation operation has been performed, the recovery process is executed according to the necessity of the recovery process. Thus, since unnecessary recovery processing is not performed, wasteful consumption of ink can be reduced, and the problem of increased running costs can be solved. Furthermore, since recovery processing is performed when preparation for copying is performed, it is possible to shorten the time from when a copy operation is instructed until recording is performed, and to solve the problem of increasing the first copy time Is possible.

(Other embodiments)
As a configuration for determining whether or not a copy preparation operation has been performed, in addition to the above-described embodiment, a copy preparation operation is performed when a switch of an operation unit (operation panel) provided in the MFP is operated by a user. It is good also as a structure to judge. This is because, during copying, the user performs settings such as the number of copies, print quality, paper size, and magnification using the input switches on the operation panel. It can be determined that it was done.

  Note that the control in the above embodiment may be configured to be ON / OFF.

FIG. 2 is a configuration explanatory diagram of an MFP applicable in the present invention. It is a perspective view which shows an inkjet recording device part. 2 is a block diagram illustrating a configuration of a control system of the MFP according to the first embodiment. FIG. FIG. 5 is a diagram illustrating a sequence of an MFP according to the first embodiment. FIG. 10 is a configuration explanatory diagram of an MFP according to a second embodiment. FIG. 10 is a diagram illustrating a sequence of an MFP according to a second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Image reading part 102 Inkjet recording device part 103 Original stand 104 Original stand cover 105 Original stand cover opening / closing switch 106, 201 Ink tank 107, 202 Recording head 108 Opening part 207 Suction pump 208, 309 Cleaning blade 306 Operation part 307 Recovery system Control circuit 308 Recovery system motor 310 Cap 311 Suction device P Recording medium

Claims (10)

  1. In an image forming apparatus that includes a recording head that ejects ink and an image reading unit that reads a document on a document table and generates image data, and forms an image based on the image data using the recording head.
    Recovery means for performing a recovery operation for maintaining a good ink discharge state from the recording head;
    Storage means for storing information relating to the recovery operation of the recording head;
    A determination unit that determines whether or not an operation by an operator has been performed prior to the start of the reading operation of the document by the image reading unit;
    An image forming apparatus comprising: a recovery control unit that performs a recovery operation of the previous recording head based on a determination result by the determination unit and the information stored in the storage unit.
  2.   The recovery control means determines that the operation by the operator has been performed by the determination means, and when the information that the recovery operation of the recording head needs to be performed is stored in the storage means, the recording head The image forming apparatus according to claim 1, wherein the recovery operation is performed.
  3. The image reading means has a cover that covers a document placed on the document table,
    3. The image forming according to claim 1, wherein the determination unit determines that the operation by the operator is performed when it is detected that the opening / closing state of the cover is changed by a switch or an optical sensor. apparatus.
  4. The image reading unit includes a document conveying device that sequentially conveys a plurality of documents to the document table,
    3. The image forming apparatus according to claim 1, wherein the determination unit determines that an operation by the operator is performed when it is detected that the document is placed on the document transport device. 4.
  5. The apparatus further includes a setting unit that allows the user to set the size of the recording medium on which the image is formed and the number of images to be formed.
    The image forming apparatus according to claim 1, wherein the determination unit determines that an operation by the operator has been performed when it is detected that the setting of the setting unit is performed by a user.
  6.   The recovery means includes a suction recovery operation for sucking ink in the recording head, a preliminary discharge operation for discharging ink that is not related to image formation from the recording head, and a surface on which a discharge port for discharging ink is formed. 6. The image forming apparatus according to claim 1, wherein at least one of wiping operations is performed.
  7.   7. The storage unit according to claim 1, wherein the storage unit stores information indicating whether or not the recovery operation of the recording head needs to be performed in accordance with an elapsed time from a recovery operation performed last time. The image forming apparatus according to any one of the above.
  8.   The image forming apparatus according to claim 1, wherein the storage unit stores information indicating a recovery amount when the recovery operation of the recording head is performed according to the elapsed time.
  9. A recording head that ejects ink; an image reading unit that reads a document on a document table to generate image data; a recovery unit that performs a recovery operation to maintain a good ink discharge state from the recording head; and the recovery A recovery method in an image forming apparatus that forms an image based on the image data using the recording head, the image forming apparatus having a memory that stores information relating to operation,
    A determination step of determining whether or not an operation by an operator has been performed prior to the start of the image reading operation by the image reading unit;
    A recovery method comprising: a recovery control step of performing a recovery operation of the recording head based on the determination result of the determination step and the information stored in the memory.
  10.   In the recovery control step, when it is determined that the operation by the operator is performed in the determination step, and the information that the recovery operation of the recording head needs to be performed is stored in the memory, the recovery of the recording head is performed. The recovery method according to claim 9, wherein an operation is performed.
JP2004053235A 2004-02-27 2004-02-27 Imaging device Withdrawn JP2005238710A (en)

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Cited By (8)

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JP2008110523A (en) * 2006-10-30 2008-05-15 Brother Ind Ltd Image recorder
US7625058B2 (en) 2006-10-24 2009-12-01 Brother Kogyo Kabushiki Kaisha Image recording apparatus and method for recovering recording head
US7770992B2 (en) 2006-10-24 2010-08-10 Brother Kogyo Kabushiki Kaisha Image recording apparatus and method for recovering recording head
US8287086B2 (en) 2006-10-24 2012-10-16 Brother Kogyo Kabushiki Kaisha Image recording apparatus and method for restoring recording head for image recording apparatus
US9609168B2 (en) 2015-03-31 2017-03-28 Brother Kogyo Kabushiki Kaisha Printing apparatus
US9770929B2 (en) 2015-01-29 2017-09-26 Brother Kogyo Kabushiki Kaisha Image forming apparatus and method for performing preparation operations prior to image data receipt
US10044892B2 (en) 2015-01-28 2018-08-07 Brother Kogyo Kabushiki Kaisha Image forming apparatus and method for performing preparation operation prior to acceptance of job executing instruction
US10137711B2 (en) 2015-09-30 2018-11-27 Brother Kogyo Kabushiki Kaisha Image forming system including plurality of sheet feeders and method therefor having switching control features

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7625058B2 (en) 2006-10-24 2009-12-01 Brother Kogyo Kabushiki Kaisha Image recording apparatus and method for recovering recording head
US7770992B2 (en) 2006-10-24 2010-08-10 Brother Kogyo Kabushiki Kaisha Image recording apparatus and method for recovering recording head
US8287086B2 (en) 2006-10-24 2012-10-16 Brother Kogyo Kabushiki Kaisha Image recording apparatus and method for restoring recording head for image recording apparatus
JP2008110523A (en) * 2006-10-30 2008-05-15 Brother Ind Ltd Image recorder
US10044892B2 (en) 2015-01-28 2018-08-07 Brother Kogyo Kabushiki Kaisha Image forming apparatus and method for performing preparation operation prior to acceptance of job executing instruction
US9770929B2 (en) 2015-01-29 2017-09-26 Brother Kogyo Kabushiki Kaisha Image forming apparatus and method for performing preparation operations prior to image data receipt
US10377159B2 (en) 2015-01-29 2019-08-13 Brother Kogyo Kabushiki Kaisha Image forming apparatus and method for performing preparation operations prior to image data receipt
US9609168B2 (en) 2015-03-31 2017-03-28 Brother Kogyo Kabushiki Kaisha Printing apparatus
US10137711B2 (en) 2015-09-30 2018-11-27 Brother Kogyo Kabushiki Kaisha Image forming system including plurality of sheet feeders and method therefor having switching control features

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