JP2008283516A - Recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image reader/recorder which prevents harmful effects from occurring in a read image by vibrations generated on the basis of the operation of a recording part during operation of the image reading part and is inexpensive and highly convenient to a user. <P>SOLUTION: When a state signal S based on the operation of the recording part is on, that is, when it is decided that vibrations by the operation of the recording part are relatively large (S101), whether a scanner motor is active is checked (S107). When it is decided here that the scanner motor is active, the driving of the scanner motor is stopped and a reading operation is also stopped (S108). The image reading operation is interrupted until the state signal S becomes off, and the reading operation is made standby until the state signal S becomes off (S101). Even when the recording part operates in this way, it is possible to prevent harmful effects from occurring in the read image of the image reading part by vibrations generated on the basis of the operation. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a recording apparatus, such as a facsimile, a copying machine, or a multifunction peripheral, which includes an image reading unit that reads an image and a recording unit that records an image. The present invention relates to the control related to the recording operations.

  Conventionally, facsimile machines and copiers are widely known as this type of apparatus. Also, recently, a multi-function machine equipped with an image reading unit having the same function as a scanner and a recording unit that performs recording based on image information in an integrated housing can be realized in a space-saving manner in addition to multifunctionality. It is widely used for such reasons. Some of these multifunction devices include a card slot for directly reading image information from a memory card or the like as a recording medium for image information such as a digital camera. Further, the multifunction device transmits the image information read from the image reading unit to a host device such as a PC via a predetermined IF unit, and after processing the host device, the image information is returned to the multifunction device. Thus, it is possible to record in the recording unit.

  2. Description of the Related Art A recording apparatus having an image reading mechanism as described above (hereinafter also referred to as “image reading / recording apparatus”) is well known to have a configuration in which an image reading unit and a recording unit can operate independently. For example, during an image reading operation based on an instruction from a host device such as a PC (personal computer), a recording operation based on an instruction from the host device may be executed. In addition, when the image reading unit is also operated via a PC or the like during a recording operation based on image information from a memory card, or in a multifunction device equipped with a facsimile function, during a recording operation based on received information, There are cases where a scanned original is read.

  The image reading unit in such an image reading / recording apparatus generally performs an image reading operation while scanning the reading sensor unit in the width direction of a sheet serving as a document. In addition, the recording unit scans the recording head with respect to a recording medium such as paper and film, and the so-called serial type that performs recording while repeating the conveyance of the recording medium to the scanning region, etc. Widely used in terms of

  By the way, during the operation of the reading sensor unit of the image reading and recording apparatus, the vibration of the reading sensor unit caused by the vibration generated by the operation of the operation unit by the user of the apparatus or the vibration generated based on the operation of the recording unit. Scanning may become unstable. In such a case, the image read by the reading sensor unit may be adversely affected such as disturbance. In addition, the above-described reading may be unstable due to vibrations generated by the recording operation of the recording unit. In particular, when the image reading unit operates in, for example, a high resolution mode for obtaining high quality, while the recording unit operates in a mode with a high recording speed, the possibility of image damage due to unstable reading increases.

  In order to reduce image adverse effects caused by vibrations caused by elements other than the image reading unit, a vibration detecting unit such as a sensor for detecting vibration and a recognition unit for recognizing a reading position by the image reading unit are provided in the apparatus. The provided recording apparatus is known (for example, patent document 1). When the vibration detecting means detects vibration, the reading position by the image reading unit where the vibration is detected is recognized, and the reading position is returned to the position at the time of detection again to perform reading. Further, in a configuration that does not include a sensor for detecting vibrations, for example, it is conceivable that all operations of the recording unit are prohibited during the operation of the image reading unit.

Japanese Patent Laid-Open No. 06-205180

  However, when a sensor for vibration detection is provided as disclosed in Patent Document 1, there is a problem that the apparatus becomes expensive as much as a vibration detection mechanism such as a sensor is provided. In particular, all the operations in the image reading unit do not always cause a bad effect on the read image due to vibration from the recording unit. For this reason, it is possible to consider providing a sensor for the purpose of reducing a predetermined image reading operation that may cause such an adverse effect, but the sensor provided only for that purpose increases the relative apparatus cost. Can be said to be large.

  In addition, for example, in a configuration in which all operations of the recording unit are prohibited during the operation of the image reading unit, the user cannot use the reading operation by the image reading unit and the recording operation by the recording unit independently. Convenience may be impaired.

  In view of the above, it is an object of the present invention to prevent the reading image from being adversely affected by vibration generated based on the operation of the recording unit during the operation of the image reading unit, and to be inexpensive and convenient for the user. It is to provide a high image reading and recording apparatus.

  Therefore, according to the present invention, in a recording apparatus including a reading unit that operates a reading sensor to read a document and a recording unit that performs an operation for recording on a recording medium, the recording device is based on the operating state of the recording unit. And control means for controlling to permit or prohibit the execution of the reading operation by the reading unit.

  Preferably, the apparatus further includes a signal generation unit that generates a state signal that changes according to an operation state of the recording unit, and the control unit performs a reading operation by the reading unit based on the state signal generated by the signal generation unit. It is characterized by controlling to permit or prohibit the execution of.

  In another form, in an image reading and recording apparatus having a reading unit capable of reading an original in a plurality of reading modes and a recording unit capable of recording on a recording medium in a plurality of recording modes. When the reading operation by the reading unit and the recording operation by the recording unit are performed in an overlapping manner, the recording unit can execute the recording mode of the recording unit according to the reading mode set in the reading unit. Control means for setting a recording mode in which the influence of vibration on the reading unit is less among a plurality of recording modes is provided.

  According to the above configuration, it can be known from the operation state of the recording unit that the vibration generated with the operation in the recording unit is so great as to adversely affect the reading operation. Specifically, it can be known from a status signal based on a driving signal for operation in the recording unit. If this operation state is large enough to adversely affect, the reading operation is interrupted when it is being performed, and when the reading operation is not being performed, the above-described status signal has an adverse effect. Wait for a read operation until it is no longer large. That is, the reading operation is prohibited. As a result, even when the recording unit is operating, it is possible to prevent the reading image of the image reading unit from being adversely affected by vibration generated based on the operation. In addition, this configuration can be realized as an image reading and recording apparatus that is inexpensive and highly convenient for the user.

  According to another embodiment, the recording mode of the recording unit can be set according to the reading mode in order to express the influence of vibration on the reading unit due to the operation of the recording unit, for example, to express the reading quality of the reading unit. Specifically, among a plurality of recording modes in the recording unit, a recording mode in which the influence of vibration on the scanner unit is less is set according to the reading quality of the scanner unit. As a result, even if a recording operation is being performed in the recording unit, the reading operation can be continued without interrupting or waiting for the operation of the scanner unit while minimizing adverse effects on the reading operation.

  As a result, even when the recording unit is operating, it is possible to prevent the reading image of the image reading unit from being adversely affected by vibration generated based on the operation. In addition, this configuration can be realized as an image reading and recording apparatus that is inexpensive and highly convenient for the user.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(First embodiment)
As an image reading and recording apparatus according to the present invention (also simply referred to as “recording apparatus” in the present specification), an image reading unit (hereinafter also referred to as a scanner unit or simply as a reading unit) and a recording unit (hereinafter also referred to as a printer unit) are provided. An explanation will be given by taking the multifunction machine provided as an example. The recording unit of the present embodiment uses an ink jet recording method.

  FIG. 1 is a perspective view showing an image reading and recording apparatus according to the present embodiment, and mainly shows a reading unit in which a pressure plate for holding a reading document is opened. The image reading and recording apparatus according to the present embodiment has an image reading unit disposed above and a recording unit disposed below the image reading unit, and these are integrally provided in a casing made up of an upper case part and a lower case part that form an outer shell of the apparatus. It is. In addition, as shown in FIG. 1, a panel unit M1002 for operating and displaying the image reading and recording apparatus is provided. The panel unit M1002 is provided with a key unit that can instruct an image reading operation or a recording operation without using the image reading and recording device via a host device such as a PC. In addition, a card slot portion for inserting a recording medium such as image information such as a PC card is also provided, and an LCD for displaying image information read from the PC card or the like is also configured in the panel portion M1002.

  The recording unit automatically feeds a recording sheet for recording an image into the apparatus main body, and guides the recording sheet fed one by one from the automatic feeding unit to a desired recording position. In addition, a conveyance unit that guides the recording sheet from the recording position to the discharge unit is provided. Furthermore, a recording mechanism unit that performs desired recording on the recording sheet conveyed to the conveying unit, and a recovery unit (recovery processing unit) that performs an ejection recovery process on the recording unit.

  As shown in FIG. 1, the image reading unit M6000 includes a glass M6001 on which a document is set, and an abutting reference unit M6002 is attached from the upper surface of the glass M6001. The abutting reference portion M6002 serves as an abutting portion for the end portion of the document, and also serves as an absolute white reference for the reading sensor unit M6003 from the back side through the glass M6001. The glass 23 is pressed from above by a cover M6004. A pressure plate M6005 serving as a cover member that holds the document against the glass M6001 is rotatably attached via a hinge portion M6006 on one side of the rear of the apparatus. A pressure plate white sheet M6007 made of a sponge and a white sheet is attached to the pressure plate M6005.

  The image reading unit M6000 is configured such that a sensor holder on which a scanner sensor unit for reading an image is mounted is guided and scanned along an axis. Here, the sensor holder is driven via a timing belt using a scanner motor as a drive source. Specifically, the scanner sensor is driven and scanned based on a copy operation instruction or an instruction from a host device such as a PC, and reads the image information of the document through the glass M6001.

  FIG. 2 is a perspective view illustrating a schematic configuration of a recording unit using an inkjet recording method. In FIG. 2, a chassis M3100 is constituted by a plurality of plate-like metal members having a predetermined rigidity, forms a skeleton of a recording apparatus, and holds each recording operation mechanism described later. The recording operation mechanism includes an automatic feeding unit M2000 that automatically feeds a recording sheet into the apparatus main body, and guides the recording sheets fed one by one from the automatic feeding unit to a desired recording position. Is provided with a transport unit M3000 that guides the recording sheet P to the discharge unit M3050. Furthermore, a recording unit M4000 that performs desired recording on the recording sheet P conveyed to the conveying unit M3000, and a recovery unit M5000 that performs a recovery process on the recording unit M4000 and the like are provided.

  The automatic feeding unit M2000 of the present embodiment feeds the recording sheets stacked at an angle of about 30 ° to 60 ° with respect to the horizontal plane in a horizontal state, and keeps the substantially horizontal state from a feeding port (not shown). The recording sheet is fed into the main body while maintaining it. That is, the automatic feeding unit M2000 includes a feeding roller M2001, a movable side guide M2002, a pressure plate M2003, a separation claw (not shown), a separation sheet, and the like. The side guide M2002 is composed of a pair of sheet guides M2002a and M2002b, and one of the sheet guides M2002b is horizontally movable, and can correspond to the horizontal widths of various recording sheets. The feeding roller M2001 is rotated by driving an ASF motor (not shown), so that the recording sheets stacked on the pressure plate M2003 are fed. Specifically, the uppermost recording sheet among the recording sheets stacked by the separation action of the separation claw and the separation sheet is sequentially separated one by one and sent out to the transport unit M3000.

  The conveyance unit M3000 includes an LF roller M3001, a pinch roller M3002, a platen M3003, and the like. The LF roller M3001 is fixed to a drive shaft that is rotatably supported by the chassis M3100 and the like, and is rotationally driven by an LF motor E0002 via an LF gear train M3004. The pinch roller M3002 is pivotally attached to a pinch roller holder M3002a that is rotatably supported by the chassis M3100, and is pressed against the LF roller M3001 by a wound spring-like pinch roller spring that urges the pinch roller holder M3002a. ing. When the LF roller M3001 rotates, the pinch roller M3002 rotates following the rotation of the LF roller M3001, and the recording sheet is sandwiched between the LF roller M3001 and conveyed while being supported by the platen on the M3003.

  In the transport unit configured as described above, the driving of the LF motor E0002 is started when a certain time has elapsed after the transport operation by the paper feed roller M2001 of the automatic feeding unit M2000 is stopped. Then, the recording sheet P whose leading end is in contact with the nip portion between the LF roller M3001 and the pinch roller M3002 is conveyed to the recording start position on the platen M3003 by the rotation of the LF roller M3001.

  The discharge unit M3050 has a discharge roller M3051 shown in FIG. 2 that can transmit and rotate the driving of the LF motor E0002 through a predetermined gear train, and a spur M3053 that rotates following the rotation of the discharge roller is a spur stay. M3052 is provided. Further, it is discharged by these discharge rollers and spur M3053. When the recording on the recording sheet is completed and the trailing end of the recording sheet P is pulled out from between the LF roller M3001 and the pinch roller M3002, the recording sheet P is transported only by the discharge roller and the spur M3051, The recording sheet is completely discharged.

  The recording mechanism M4000 mainly includes a carriage M4001 that is movably supported by a carriage shaft M4003 and a carriage rail M4005, and a recording head cartridge H1000 that is detachably mounted on the carriage M4001. Here, an ink tank H1001 for supplying ink to a recording head unit (not shown) is replaceable in the ink jet recording head cartridge H1000.

  The carriage M4001 is fixed to the lower side of a carriage belt M4011, which is stretched between a idler pulley M4009 and a carriage motor pulley M4010 via a coil spring substantially parallel to the carriage shaft M4003. Thus, the carriage motor pulley M4010 is driven by the drive of the carriage motor E0001, and the carriage M4001 can be moved along the carriage shaft M4003 and the carriage rail M4005. As described above, the recording unit includes a mechanism for scanning the recording head.

  A contact portion E0011, which will be described later with reference to FIG. 3, is provided at an engagement portion of the carriage M4001 with the recording head cartridge H1000, and a pin on the contact portion E0011 and a contact portion (not shown) provided on the head cartridge H1000 come into contact with each other. . Thereby, transmission / reception of various kinds of information for recording, power supply to the ink ejection unit of the recording head cartridge H1000, and the like can be performed. Further, the contact portion E0011 is mounted on a carriage substrate E0013 (CRPCB, FIG. 3) mounted on the back surface of the carriage M4001. Further, the carriage flexible flat cable (carriage FFC) E0012 is pulled out to the side surface portion of the carriage M4001 and connected to the main board E0014 (FIG. 3). The carriage substrate E0013 is provided with an encoder sensor E0004 (FIG. 3). As a result, information on the encoder scale E0005 stretched between the both side surfaces of the chassis M3100 in parallel with the carriage shaft M4003 can be detected, and the position and scanning speed of the carriage M4001 can be detected.

  The recovery unit according to the present embodiment normalizes an ink flow path from the ink tank H1001 to the ink ejection unit and a cleaning unit for removing foreign matter attached to an ink ejection unit (not illustrated) of the recording head cartridge H1000. The suction means is provided. The cap M5001 is provided to face the ink discharge portion of the recording head cartridge H1000, is connected to the PG motor E0003, a gear train (not shown), and a cam mechanism, and is configured to be movable in the B direction shown in FIG. The ink discharge portion of the recording head cartridge H1000 mounted on the carriage M4001 moves to a position (also referred to as a capping position) that faces the cap M5001. Then, the cap M5001 is driven vertically upward in the drawing to cover the ink discharge portion and enter a capping state. In this state, when a pump mechanism (not shown) connected to the PG motor and a predetermined gear train is operated, ink is sucked and discharged from the ink tank H1001 through the ink discharge portion. The recovery unit M5000 is provided with a wiper blade M5002 as a cleaning unit for the ink discharge unit. The wiper blade M5002 is connected to the PG motor E0003 via a predetermined gear train, and is configured to be movable in the direction C in FIG. As a result, the carriage M4001 loaded with the recording head cartridge H1000 stops after moving to a predetermined wiping position, and the wiper blade M5002 can be driven in the forward direction of FIG. By this operation, the wiper blade M5002 comes into contact with the surface of the ink discharge portion of the recording head cartridge H1000 to perform cleaning.

  3 and 4 are diagrams showing the overall configuration of the electrical circuit in the image reading and recording apparatus of the present embodiment.

  The electrical circuit in the present embodiment mainly includes a carriage substrate (CRPCB) E0013, a main PCB E0014, a power supply unit E0015, and the like. Here, the power supply unit E0015 is connected to the main PCB E0014 and supplies various driving powers.

  The carriage substrate E0013 is mounted on the carriage M4001, and exchanges signals with the recording head cartridge H1000 through the contact portion E0011. Further, a change in the positional relationship between the encoder scale E0005 and the encoder sensor E0004 is detected based on the pulse signal output from the encoder sensor E0004 as the carriage M4001 moves. Then, the output signal is output to the main PCB E0014 through a flexible flat cable (CRFFC) E0012.

  The main PCB is a printed circuit board unit that controls driving of the image reading unit and the recording unit. This board unit includes ports for a key unit M1002a, an LCD M1002b, and a power key E0018 provided on the panel unit M1002. Accordingly, the scanner sensor unit M6003 of the image reading unit M6000 and the scanner motor M6011 for scanning and driving the scanner sensor unit M6003 are operated to be electrically connected to read image information. Further, it is also connected to a paper edge detection sensor (PE sensor) E0006, ASF sensor E0009, and the like of the recording unit, and the board unit has an I / O port for parallel I / F E0016, serial I / F E0017, and the like. Further, the board unit is connected to a CR motor E0001, an LF motor E0002, a PG motor E0003, an ASF motor E0008, and a scanner motor M6011, and controls their drive. In addition, the board unit has a connection interface with the PG sensor E0010, CRFFC E0012, and power supply unit E0015.

  A CPU E1001 drives and controls each unit of the recording apparatus together with an ASIC (Application Specific Integrated Circuit) E1002. For example, CR motor E0001, LF motor E0002, PG motor E0003, ASF motor E0008, and scanner motor M6011 are connected to CR motor driver E1003, LF motor driver E1004, PG motor driver E1004, ASF motor driver E1005, and scanner motor driver E0021, respectively. Control. At this time, a circuit (not shown) detects or generates a state signal S, which will be described later with reference to FIGS. 7 and 8, based on the drive signals for the motors output from the ASIC E1002.

  FIG. 5 is a flowchart illustrating various operations of the recording unit described above. When the image reading and recording apparatus is connected to the AC power supply, first, in step S1, first initialization processing of the apparatus is performed. In this initialization process, an electrical circuit system check such as a ROM and RAM check of the apparatus is performed to confirm whether or not the apparatus can operate normally.

  Next, in step S2, it is determined whether or not the power key E0018 (FIGS. 3 and 4) provided on the panel unit M1002 is turned on. When the power key E0018 is pressed, the process proceeds to the next step S3, and a second initialization process is performed.

  In this second initialization process, each drive mechanism and head cartridge of the recording unit of the apparatus is checked. That is, initialization of various motors and reading of head information are performed to check whether this apparatus can operate normally. The home position acquisition operation for determining the carriage position reference is performed in the initialization process 2.

  Next, in step S4, an event wait is performed. That is, for this apparatus, a command event from the external I / F, an event from the panel key M1002 by a user operation, an internal control event, and the like are monitored, and when these events occur, processing corresponding to the event is performed. Execute.

  For example, if a print command event is received from the external I / F in step S4, the process proceeds to step S5 and the subsequent processing is executed. If a power key event is generated by a user operation in step S4, the process proceeds to step S10 and a print end process is performed. Further, when another event occurs in step S4, the process proceeds to step S11, and processing corresponding thereto is performed.

  When the process proceeds to step S5, the print command from the external I / F is analyzed, the specified paper type, paper size, print quality, paper feed method, etc. are determined, and data representing the determination result is stored in the apparatus. Store in RAM and proceed to step S6. Next, in step S6, driving of the automatic feeding unit M2000 is started in step S5, the paper is fed to the recording start position, and the process proceeds to step S7. In step S7, a recording operation is performed.

  In this recording operation, recording data transmitted from the external I / F is temporarily stored in the recording buffer. Then, the CR motor E0001 is driven to start the movement of the carriage M4001 in the scanning direction, and the recording data stored in the print buffer is supplied to the recording head cartridge H1000 to record one line. When the recording operation of the recording data for one line is completed, the LF motor E0002 is driven, and the LF roller M3001 is rotated to feed the paper in the sub scanning direction. Scanning of the carriage M4001 accompanying this recording is performed while transitioning between an acceleration state, a constant speed state, a deceleration state, and a stop state.

  Thereafter, the above operation is repeatedly executed, and when recording of recording data for one page from the external I / F is completed, the process proceeds to step S8. In step S8, the LF motor E0002 is driven, a discharge roller (not shown) is driven, and paper feeding is repeated until it is determined that the paper has been completely fed out from the apparatus. When the paper is finished, the paper is placed on the paper discharge tray M1004a. The paper is completely discharged. Next, in step S9, it is determined whether or not the recording operation for all the pages to be recorded has been completed. If there are pages to be recorded, the process returns to step S5. And the operation | movement from above-mentioned step S5-S9 is repeated. The recording operation ends when the recording operation for all the pages to be recorded is completed, and then the process proceeds to step S4 to wait for the next event.

  In step S10, printer end processing is performed to stop the operation of the apparatus. In other words, in order to turn off the power of various motors and heads, after shifting to a state where the power can be turned off, the power is turned off and the process proceeds to step S4 to wait for the next event.

  In step S11, event processing other than the above is performed. For example, processing corresponding to a recovery process command of the recording head from the various panel keys of this apparatus or an external I / F or a recovery event that occurs internally is performed. Further, in step S4, for example, there may be an event of an image reading instruction from the host device and a recording operation execution instruction from the host device. Alternatively, the recording operation instruction based on the image information from the memory card and the image reading instruction from the host device are input as an event at the same time, or the transmission operation such as a transmission original is performed during the recording operation based on the received information. There are cases where the event is input. As described above, when the image reading unit and the recording unit operate at the same time, the processing described below is performed in order to prevent the adverse effect of the reading operation of the reading unit being disturbed by the vibration associated with the operation of the recording unit. .

  FIG. 6 is a diagram illustrating an example of a state of vibration generated based on an operation in the recording unit. In the graph shown in FIG. 6, the horizontal axis indicates time, and the vertical axis indicates the magnitude of vibration. Specifically, in a series of recording operations, feeding of a recording sheet is started from the automatic feeding unit, the recording sheet is conveyed by the conveying unit to a recording start position by the recording unit, and then the carriage is moved to perform recording. The state of vibration while the head is being scanned is shown. Here, the graph shown in the upper part of FIG. 6 is an example of vibration detected by mounting an acceleration sensor on the carriage M4001 of the recording unit, and the lower graph in the figure supports each mechanism unit of the recording unit. It is an example of vibration detected by attaching an acceleration sensor to the chassis M3100. In this embodiment, the actual vibration detection uses the state signal S based on the drive signal output when driving various motors, as will be described later, and vibration detection using an acceleration sensor is not performed. . This configuration of the acceleration sensor is used experimentally to explain the influence of the recording operation on the image reading unit.

  Regions 1 to 7 shown in FIG. 6 indicate regions in which vibrations generated by the operation of each mechanism of the recording unit are transmitted to the chassis M3100, and the transmitted vibrations are relatively large. Each area will be described below in relation to the operation of the recording unit.

  Region 1 shows a state in which the PG motor is driven from the state where the recording head mounted on the carriage is capped by the cap of the recovery unit, and the cap is removed from the recording head. Region 2 shows the state of the home position acquisition operation for determining the reference position of the carriage following the cap separation operation in region 1. At this time, in FIG. 2, the carriage moves to the right in the drawing of the chassis M3100 and operates so as to be abutted against the side surface of the chassis M3100. In area 3, the ASF motor is driven to feed the recording sheet from the automatic feeding unit of the recording unit, the pressure plate is driven toward the feeding roller, and the feeding roller and the conveying roller are driven to feed the recording sheet to a predetermined level. A state in which the sheet is conveyed to the recording start position is shown. Subsequent areas 4 to 7 are substantially in the deceleration state, the stopped state, and the subsequent scanning of the carriage among the states in which the recording head is repeatedly scanned by moving the carriage on the recording sheet conveyed to the predetermined recording start position. The state corresponding to the acceleration state with the direction reversed is shown.

  FIG. 7 is a diagram for explaining the state signal S indicating the operation state of the recording unit indicating that the vibration generated in the recording unit is relatively large. That is, among the vibrations generated by the operation of each mechanism of the recording unit, the vibrations in the regions 1 to 7 shown in FIG. 6 are relatively large, and these vibrations adversely affect the reading operation of the image reading unit. It is. In the present embodiment, this vibration is detected as a state signal S that is turned on in correspondence with the states of region 1 to region 7 shown in FIG. As described above, the state signal S is a signal generated by a signal generation circuit (not shown) based on the drive signal of the motor driven in each of the above regions within the ASIC E1002 shown in FIG. Specifically, the region 1 is generated so as to be turned on when the PG motor is driven for the cap separation operation and turned off when the PG motor is stopped. The status signal S corresponding to the area 2 is generated so that the carriage motor is started to be driven for the home position acquisition operation of the carriage and is turned ON, and the home position acquisition is completed and the carriage motor is stopped to be turned OFF. Is done. The status signal S corresponding to the area 3 is turned on with the start of driving of the ASF motor to start feeding of the recording sheet from the automatic feeding unit, and the recording sheet is conveyed to a predetermined recording start position to drive the LF motor. It is generated so as to stop and become OFF. Further, the state signal S corresponding to the region 4 to the region 7 mainly includes a deceleration state in which the carriage is stopped for the recording scan and a deceleration state in which the recording is finished and decelerated, and an acceleration state for the next recording operation. Almost corresponds to. Accordingly, the carriage reduces the driving force to the carriage motor and shifts to the decelerating state, and becomes the ON state. After the stop state, the acceleration state in which the driving force to the carriage motor is increased stepwise is finished and the OFF state is set. Is generated as follows.

  FIG. 8 is a flowchart for explaining the operation of the image reading unit based on the above-described state signal S according to the embodiment of the present invention.

  When the start of the image reading operation in the image reading unit M6000 is instructed, first the status signal S of the recording unit is checked (step S101). This check is performed by the CPU E1001 detecting the state of the state signal S generated by a circuit (not shown) as described above. Here, when the state signal S is in the OFF state, that is, when it is determined that the vibration generated by the recording unit is relatively small or the recording unit is not operating, the driving of the scanner motor 6011 is started (step S102). Thereafter, the home position acquisition operation using the scanner sensor unit M6003 is performed (step S103). Here, the scanner frame is provided with a photosensor (not shown) at a predetermined position, and the sensor holder unit that supports the scanner sensor unit M6003 is configured to pass through the photosensor as it moves. Then, the position of the scanner sensor unit M6003 with respect to the placed document image is recognized with reference to the position where the scanner sensor holder unit passes the photo sensor. When the home position is acquired, the sensor boulder unit is moved to a position facing the white reference M6002 for adjustment of the output of the sensor unit and the white reference reading operation is performed (step S104). Thereafter, the sensor unit M6003 is driven toward the document image to start reading the image (step S105). The image reading operation is performed until the image reading operation is completed based on whether image information is no longer detected or scanning is performed up to a position corresponding to the maximum scanning distance of the sensor unit M6003 (step S106).

  On the other hand, if it is determined in step S101 that the status signal S based on the recording unit operation is in the ON state, that is, it is determined that the vibration due to the operation of the recording unit is relatively large, the process proceeds to step S107. Check whether or not. Here, when it is determined that the scanner motor is operating, in step S108, the driving of the scanner motor is immediately prohibited or stopped and the reading operation is prohibited or stopped. Then, the process proceeds to step S101 to check the ON / OFF state of the status signal S of the recording unit. In this way, the image reading operation is suspended until the status signal S is turned off, and the operation waits until the status signal S is turned off. When it is detected that the status signal S is in the OFF state, the process proceeds to step S102 and the image reading operation is resumed.

  When it is determined in step S107 that the scanner motor is not operating, the process similarly proceeds to step 101 and waits until the status signal S is turned off. After the status signal S is turned off, step S102 is entered. Starts or resumes the reading operation. That is, the reading operation is permitted.

  In this embodiment, the reading operation is resumed by returning the scanner sensor unit M6003 to the position where the reading is stopped and restarting the reading from there. In addition to this form, the position instructed to stop the reading operation is held, and when the reading operation is resumed, reading is performed from a position before a predetermined amount before the position instructed to stop the reading operation. An operation may be performed. Then, the image information read when the reading operation is stopped is discarded, and the image read after the reading operation is resumed is set as normal read image information.

  As described above, according to the present embodiment, the state signal based on the drive signal for driving the drive unit in the recording unit indicates that the vibration generated with the operation in the recording unit is large enough to adversely affect the reading operation. Can know by. If the status signal indicates that it is large enough to have an adverse effect, it is interrupted when the reading operation is being performed, and when the reading operation is not being performed, the status signal has an adverse effect. Waits for a read operation until no greater value is shown. As a result, even when the recording unit is operating, it is possible to prevent the reading image of the image reading unit from being adversely affected by vibration generated based on the operation. In addition, this configuration can be realized as an image reading and recording apparatus that is inexpensive and highly convenient for the user.

  In the above-described embodiment, the state signal S is generated so as to be turned on and off with the start and stop of driving of the motor that drives each mechanism of the recording unit. However, the present invention is not limited to this mode, and as shown in FIG. 9, it is also conceivable that the state signal S changes after a predetermined time T1 from the stop of driving of the motor (operation stop state). The example shown in FIG. 9 shows a mode in which the timing at which the status signal S changes from the ON state to the OFF state is delayed by a predetermined time (T1) from the stop of driving of the motor of the recording unit, for example. Yes. According to this embodiment, it is possible to cope with a case where the vibration is attenuated with a time delay from the stop of driving of the motor, and as a result, the reliability of the OFF state of the state signal S is increased.

  Further, in the case where the transmission of the vibration due to the recording unit operation to the image reading unit itself is delayed in time, as shown in FIG. 10 in addition to FIG. 9, the change of the state signal S from the OFF state to the ON state is performed. It is also conceivable to generate the recording unit with a delay of a predetermined time T2 from the start of driving of the motor of the recording unit. By providing the status signal S as shown in FIG. 9 and FIG. 10, the status signal can be generated more effectively, and as a result, image adverse effects caused by the image reading unit M600 due to vibration caused by the operation of the recording unit are minimized. It becomes possible.

(Second Embodiment)
In the first embodiment described above, the state signal S is generated based on the operation state of the recording unit, the image reading operation in the image reading unit is controlled according to the state signal S, and the vibration generated by the operation of the recording unit is detected. The mode for minimizing the adverse effects on the read image caused by the above has been described. The second embodiment of the present invention relates to a configuration for controlling the operation of the recording unit in combination with the first embodiment.

  FIG. 11 is a diagram illustrating the scanning speed of the carriage M4001 for each recording mode in the recording unit. The scanning of the carriage M4001 is decelerated stepwise from the acceleration state in which the speed is increased stepwise as described above, the constant speed state in which scanning is performed while maintaining a constant speed, and the speed in this constant speed state. This is done while showing the deceleration state. In this embodiment, the speed of the carriage M4001 in the constant speed state is three types of speeds for each mode as shown in FIG. These scan states are "fast" mode with short recording time, "clean" mode to get higher quality recording results, and "standard" to get intermediate recording time and quality of these modes It is provided for each mode. That is, the recording unit of the present embodiment is configured to be able to execute a plurality of recording modes. The scanning state of the carriage M4001 applied in the “fast” mode corresponds to the speed v1 having the highest arrival speed, the scanning state applied in the “standard” mode corresponds to the speed v2, and is applied in the “clean” mode. The scanning state corresponds to the lowest speed v3. Furthermore, as shown in FIG. 11, the acceleration and deceleration increase as the arrival speed increases.

  In the present embodiment, basically, when the operation of the recording unit is instructed when the reading operation is performed in the four reading modes that can be executed by the image reading unit, in the recording unit according to the table shown in FIG. Controls the scanning state of the carriage. That is, when the operation of the recording unit and the operation of the reading unit overlap, the mode of the recording unit is changed according to the mode of the reading unit.

  When the operation mode of the scanner unit that is the image reading unit is “pre-scan mode” that is an attempt of the reading operation, as described in the first embodiment, even if the recording unit performs the recording operation, Do not stop or wait for the reading operation. This is because the use purpose of the reading operation mode can be achieved for the user even if some image damage is caused by vibration caused by the operation of the recording unit. Specifically, as shown in FIG. 12, when the operation mode of the scanner unit is the “pre-scan mode”, the reading operation is performed and the carriage scanning state corresponding to the recording mode in the recording unit is not changed. The recording operation is performed as it is.

  When the operation mode of the scanner unit is the “high-speed scan mode” with a low resolution, similarly, the reading operation is not stopped or waited even if the recording unit performs the recording operation. Then, only when the carriage scanning state in the recording unit is the “fast” mode with the greatest acceleration and deceleration, the scanning state is changed to the scanning state at the speed v2 applied in the “standard” mode, for example.

  When the scanner unit is in the “standard scan mode” and the carriage scan state in the recording unit corresponds to the “fast” mode or the “standard” mode, the recording unit similarly performs the recording operation. The reading operation is not stopped or waited even if Then, the printing operation is performed by changing to the “clean” mode that is driven in the scanning state where the acceleration and deceleration of the carriage are the smallest. When the recording mode set in the recording unit is originally “clean” mode, the recording operation is performed without changing the mode. As a result, the “clean” mode recording operation is performed regardless of the initial setting mode in the recording unit. In this case, the control of stopping and restarting the operation of the image reading unit based on the status signal S described in FIG. 8 is performed.

  Further, when the operation mode of the scanner unit is the “high resolution scan mode” for obtaining a high-quality read image, the control shown in FIG. 8 described in the first embodiment is not performed, and the recording operation by the recording unit is performed. It will be in a standby state without performing.

  As described above, according to this embodiment, the influence of vibration on the scanner unit due to the operation of the recording unit can be changed according to the reading quality of the scanner unit. Specifically, among the plurality of recording modes in the recording unit, the recording mode is changed to a mode in which the influence of vibration on the scanner unit is less according to the reading quality of the scanner unit. As a result, even if a recording operation is being performed in the recording unit, the reading operation can be continued without interrupting or waiting for the operation of the scanner unit while minimizing adverse effects on the reading operation.

1 is an external perspective view showing a multifunction machine as an image reading and recording apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating a recording unit of the multifunction machine illustrated in FIG. 1. It is a block diagram which shows the whole structure of the electric circuit in the said multifunctional device. It is a block diagram which shows the circuit structure in the main board | substrate in the electrical circuit shown in FIG. 5 is a flowchart for explaining various operations in the multifunction machine. It is a figure explaining the vibration by the recording part which concerns on one Embodiment of this invention. It is a figure explaining the state signal based on the said vibration of the recording part which concerns on one Embodiment of this invention. It is a flowchart explaining the operation | movement by the image reading part which concerns on the 1st Embodiment of this invention. It is a figure explaining the other form of the status signal of the recording part which concerns on the 1st Embodiment of this invention. It is a figure explaining the further another form of the status signal of the recording part which concerns on the 1st Embodiment of this invention. It is a figure explaining the scanning state of the carriage which concerns on the 2nd Embodiment of this invention. It is a figure explaining the scanning state of the carriage during the image reading part operation | movement concerning the 2nd Embodiment of this invention.

Explanation of symbols

M2000 automatic feeding unit M3050 discharge unit M4000 recording unit M4001 carriage M5000 recovery system unit M6000 image reading unit M6003 scanner sensor unit E0001 carriage motor E0014 main board E1001 CPU
E1002 ASIC
E1003 CR motor driver H1000 Printhead cartridge H1001 Ink tank

Claims (11)

In a recording apparatus including a reading unit that operates a reading sensor to read an original, and a recording unit that performs an operation for recording on a recording medium.
Control means for controlling to permit or prohibit execution of the reading operation by the reading unit based on the operating state of the recording unit;
A recording apparatus characterized by comprising: The recording unit includes a scanning unit that performs recording while scanning a recording head that performs recording on a recording medium.
The recording apparatus according to claim 1, wherein the control unit performs control so as to prohibit execution of the operation of the reading unit when scanning of the carriage of the recording head is in an acceleration state and a deceleration state. The recording unit includes an automatic feeding unit that automatically feeds a recording medium,
2. The recording according to claim 1, wherein the control unit controls the execution of the operation of the reading unit while the recording medium is being fed by the automatic feeding unit. apparatus. The recording unit is configured to include a scanning unit that performs recording by scanning an ink jet recording head that performs recording by discharging ink onto a recording medium, and a recovery processing unit that performs ejection recovery processing of the recording head.
The recording apparatus according to claim 1, wherein the control unit controls to prohibit the operation of the reading unit when an ejection recovery process is performed by the recovery processing unit. Further comprising a signal generating means for generating a state signal that changes in accordance with the operating state of the recording unit;
5. The control unit according to claim 1, wherein the control unit performs control so as to permit or prohibit execution of a reading operation by the reading unit based on a state signal generated by the signal generating unit. Recording device.   The recording apparatus according to claim 5, wherein the state signal generated by the signal generation unit is a signal that changes based on an operation state of a motor that operates a mechanism unit in the recording unit and an operation stop state.   7. The recording according to claim 5, wherein the signal generating unit generates a state signal that changes with a predetermined time delay from the operation stop state of the mechanism unit in the recording unit to the operation state. apparatus.   8. The signal generation unit according to claim 5, wherein the signal generation unit generates a state signal that changes with a predetermined time delay from the operation state of the mechanism unit in the recording unit to the operation stop state. The recording device described in 1.   The control means controls to prohibit the reading operation when the state signal indicates the operation state of the mechanism unit in the recording unit, and when the state signal indicates the operation stop state of the mechanism unit in the recording unit. 9. The recording apparatus according to claim 5, wherein the recording apparatus is controlled so as to permit a reading operation. The reading unit is capable of executing a plurality of reading modes, and the recording unit is capable of executing a plurality of recording modes,
When the reading operation by the reading unit and the recording operation by the recording unit are performed in an overlapping manner, the control unit sets the recording mode of the recording unit according to the reading mode of the reading unit. The recording mode is changed to a recording mode in which the influence of vibration on the reading unit is less, and control is performed to permit or prohibit execution of the reading operation by the reading unit based on the operation state of the recording unit. The recording apparatus according to claim 1. In an image reading and recording apparatus having a reading unit capable of reading a document in a plurality of reading modes and a recording unit capable of recording on a recording medium in a plurality of recording modes.
When the reading operation by the reading unit and the recording operation by the recording unit are performed in an overlapping manner, the recording unit can execute the recording mode of the recording unit according to the reading mode set in the reading unit. Control means for setting a recording mode in which the influence of vibration on the reading unit is less among a plurality of recording modes,
A recording apparatus characterized by comprising:

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