JP3037585B2 - Image reading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates also relates to an image reading equipment which enables realizing the image reading by Handy mode and the automatic feed mode, in particular, in accordance with simple structure, the image reading by the handy mode and automatic sheet feed mode It relates to an image reading equipment to feasible.

[0002] There are two types of image reading devices: a type in which an image is read by scanning on a sheet by a handy operation; and a type in which an image is read by moving a sheet using an automatic sheet feeding device. Furthermore, there is a type that can realize both of these readings. Since an image reading apparatus capable of realizing both of these image reading methods has a complicated structure, it is necessary to improve its practicality by mounting it with a simple structure.

[0003]

2. Description of the Related Art In a conventional image reading apparatus, when it is possible to realize image reading in a handy mode and an automatic paper feed mode, a handy type handy image reading apparatus provided on the market and a handy image reading apparatus are provided. By adopting a configuration in which a base device that is detachably mounted to the apparatus is prepared, a mechanism that can realize image reading in the automatic paper feed mode is provided on the side of the base device.

In order to realize image reading in the automatic paper feed mode, a hopper on which a sheet is placed, a pick roller for picking the sheet placed on the hopper, and A pad that prevents double feed, a drive roller that feeds the paper picked by the pick roller, a motor that serves as a paper feed source, a gear train that transmits the rotation of the motor to the drive roller and the pick roller, and detects the paper state (A hopper empty sensor for detecting whether or not the hopper is empty, a paper top sensor for detecting whether or not the paper has been fed to the image reading position, etc.) are required.

[0005] According to the prior art, in order to be able to read an image in the handy mode and the automatic paper feed mode, a handy type handy image reading device provided on the market and a handy image reading / removing device are required. By adopting a configuration that prepares a base device that can be freely mounted,
As shown in FIG. 12, a structure is provided on the side of the base device so that a mechanism for enabling image reading in these automatic paper feed modes can be realized.

Here, as shown in the figure, the driving roller of the base unit is provided in contact with the moving roller of the handy image reader, but the moving roller does not have a pressing structure. Therefore, the driving roller has a configuration having a pressing structure. That is, the driving roller comes into contact with the moving roller while being pressed.

Further, the conventional handy image reading apparatus used in such an image reading apparatus employs a configuration including a start switch to execute accurate image reading, and the start switch is operated by a user. In some cases, the read image is output to the outside.

[0008]

However, if a mechanism for enabling image reading in the automatic paper feed mode is provided on the side of the base device as in the prior art, a handy image reading method is required. Since both the device and the base device need to be provided with a circuit board, there is a problem that the electrical structure becomes complicated. In addition, since a configuration is adopted in which the driving roller of the base device has a pressing structure, there has been a problem that the mechanical structure is complicated.

In addition, according to the conventional handy image reading apparatus, there is a problem that a start switch must be provided and a user must operate the start switch.

[0010] The present invention was made in view of such circumstances, in accordance with simple structure, for the purpose of provision of a new image reading apparatus capable of realizing the image reading by the handy mode and automatic sheet feed mode .

[0011]

Means for Solving the Problems In order to achieve this object, the present invention includes an image reading unit reads the images,
A moving roller that allows device transfer to the image reading way direction,
It is composed of a handy image reading device having an encoder for detecting the rotation speed of the moving roller, and a base device to which the handy image reading device is detachably mounted, so that image reading in a handy mode and an automatic paper feed mode can be realized. In the image reading apparatus, a motor having a detent torque which is required in the automatic paper feed mode and serves as a paper feed source, and a paper which is required in the automatic paper feed mode and which is placed on the hopper are provided. A pick roller for picking, a transmission mechanism required in the automatic paper feed mode to transmit the rotation of the motor to the pick roller and the moving roller, and a paper sensor required in the automatic paper feed mode to detect the paper state. In addition to mounting a detachable sensor for detecting the detached state of the base device on the handy image reading device, the moving To a driven roller that slave movement, is required in the automatic feeding mode, a hopper for placing the paper, is required in the automatic paper feed mode, to prevent the double-feed of sheets by abutting the pick roller and a paper separating member configured to be mounted on the base unit, further, when this configuration is adopted, Ha Ndi image reading apparatus operates in conjunction with the attachment and detachment states of a substrate device, it is mounted with the substrate unit When it is not, a transmission member between the motor and the moving roller is released so that an interlocking member is provided to make the moving roller free.

[0012]

[0013]

According to the image reading apparatus of the present invention, it is possible to realize image reading in a handy mode and an automatic paper feed mode according to a handy image reading apparatus and a base device detachably mounted on the handy image reading apparatus. In this configuration, a portion related to electricity among the structural elements required in the automatic sheet feeding mode is mounted on the handy image reading device, and a portion not related to electricity is mounted on the base device.

From this, it is possible to concentrate the circuit board on the handy image reading apparatus, thereby simplifying the electrical structure. In addition, since the driven roller of the non-driven base unit has the pressing structure, the mechanical structure is reduced. Can also be simplified.

[0015]

[0016] Then, as a motor that is provided to realize the automatic feed mode, in the case of using those having the detent torque, when not mounted with the substrate unit, between the motor and the moving roller Since the moving member is provided with an interlocking member that releases the transfer operation by releasing the transfer operation, an image can be read in a handy mode (with no power supplied to the motor) using the handy image reading device removed from the base device. Is ensured.

At the time of image reading in the handy mode, since the detachable sensor detects that the handy mode is in effect, the image reading unit (or a circuit mechanism for receiving the image reading data) uses the rotation pulse of the encoder. Thus, a process of thinning out and outputting image read data is performed. On the other hand, when reading an image in the automatic paper feed mode, the detachable sensor detects that the paper is in the automatic paper feed mode. Therefore, the image reading unit (or a circuit mechanism for receiving the image read data) operates according to an external instruction. Regardless of the rotation pulse, the image reading data is output as it is without thinning out, or a process of thinning out and outputting the image reading data using the rotation pulse of the encoder is performed.

[0018]

[0019]

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments. FIG. 1 shows an embodiment of a handy image reading apparatus 1 of an image reading apparatus according to the present invention capable of realizing image reading in a handy mode and an automatic sheet feeding mode. FIG. One embodiment of the base device 2 is illustrated.

When reading an image in the automatic paper feed mode, the image reading apparatus of the present invention adopts a configuration in which the image is read by attaching the handy image reading apparatus 1 to the base unit 2, and reads the image in the handy mode. Sometimes
A configuration is adopted in which an image is read by removing the handy image reading device 1 from the base device 2.

[0022] c Ndi image reading apparatus 1 of this, as shown in FIG. 1, an image reading unit 10 reads an image with a line image sensor, the circuit board 11 for mounting the control circuit, the line image sensor perpendicular direction Roller 12 that enables the apparatus to move to the right, an encoder 13 that detects the rotational speed of the movable roller 12, a first gear train 14 that transmits the rotation of the movable roller 12 to the encoder 13, and a paper feed source. whether a makes the chromophore at the distal end over motor 15, the pick roller 16 to pick a sheet placed on the hopper, and a second gear train 17 for transmitting the rotation of the motor 15 to the pick roller 16 and the moving roller 12, Hobba is empty Hopper empty sensor 18 for detecting whether
A paper top sensor 19 for detecting whether or not paper has been fed and a detachable sensor 20 for detecting the detached state of the base device 2 are mounted.

The hopper empty sensor 18 and the paper top sensor 19 are, for example, as shown in FIG. 3, using a sensor arm 21 rotated by a fed paper and a pair of light emitting element / light receiving element. A U-shaped photoelectric switch mechanism 22 for detecting the rotation state of the arm 21 detects whether or not the hopper is empty according to this configuration, and determines whether or not the paper has been fed to the image reading unit 10. Or to detect. Also, the detachable sensor 20
For example, as shown in FIG. 4, a U-shaped photoelectric switch that detects the presence or absence of an object inserted into the U-shaped portion is configured, and according to this configuration, the state of attachment / detachment to / from the base device 2 is detected. I do.

On the other hand, group member device 2, as shown in FIG. 2,
A fitting projection 30 that fits into the concave portion of the handy image reading device 1 to enable detachable attachment to the handy image reading device 1 and a handy device that engages with the concave portion of the handy image reading device 1 A locking claw 31 enabling detachable attachment to the image reading device 1, a projecting piece 32 projecting from the detachable sensor 20 of the handy image reading device 1, and a moving roller 12 of the handy image reading device 1. A driven roller 33 that is driven while being pressed, and a hopper 3 on which a sheet is placed.
4 and the pick roller 16 of the handy image reading apparatus 1
And a sheet separating member 35 that prevents double feed of the sheet by contacting the sheet.

As shown in FIG. 5, the sheet separating member 35 includes a pad 36 which is in contact with the pick roller 16 of the handy image reading device 1 while being urged by the pick roller 16.
And a transport spring 37 for pressing the paper fed to the pick roller 16.

When configured as described above, the circuit board 11 of the handy image reading device 1 executes the control processing of the entire handy image reading device 1 and the image reading data output by the image reading unit 10. Execute the output process of

The output processing of the image reading data means that when the detachable sensor 20 detects that the image reading state is in the handy mode, the image reading unit 10 which is output at a specified period by using the rotation pulse of the encoder 13 is used. When the detachable sensor 20 detects that the image reading state is in the automatic paper feed mode, the image reading data from the image reading unit 10 is output as it is according to an external instruction when the detachable sensor 20 detects that the image reading state is in the automatic paper feed mode. Or a process of thinning out and outputting using the rotation pulse of the encoder 13.

That is, as shown in FIG. 6, the circuit board 11 uses the rotation pulse of the encoder 13 to thin out the image reading data output from the image reading unit 10, and outputs the image reading unit 10 from the thinning circuit 23. A selector circuit 24 for controlling whether the image reading data is passed through the thinning circuit 23 or not. When the image reading state is in the handy mode, the image reading unit 10 When the image reading data output from the image reading unit 10 is in the image reading state in the automatic paper feed mode, the image reading data output from the image reading unit 10 is bypassed by the thinning circuit 23 and directly in accordance with an external instruction. Output, or a process of thinning out the image reading data output from the image reading unit 10 according to the thinning circuit 23 and outputting Row. It should be noted that this function is not included in the circuit board 11 but may be incorporated in the image reading unit 10.

As described above with reference to FIGS. 1 and 2, in the image reading apparatus according to the present invention, a portion related to electricity among the structural elements required in the automatic paper feed mode is mounted on the handy image reading apparatus 1. The configuration in which a portion not related to electricity is mounted on the base device 2 is adopted.

Thus, in the image reading apparatus of the present invention, the circuit board 11 can be concentrated on the handy image reading apparatus 1 and the electric structure can be simplified. Since the pressure structure is provided, the mechanical structure can be simplified.

When using the image reading apparatus of the present invention in the handy mode, the user removes the handy image reading apparatus 1 from the base unit 2 and reads an image on a sheet by handy operation. At this time, no electric power is supplied to the motor 15.
5, no motor with detent torque, that is, if electricity is composed of a motor serving as a rotatable when not powered, Yu chromatography The is handy image reading apparatus 1
Has become possible to scan on an image reading target paper, it can be to read the image possessed by the sheet.

At this time, when the detachable sensor 20 detects that the projecting piece 32 of the base unit 2 is not inserted and that the portable device is in the handy mode, the circuit board 11 outputs the rotation pulse of the encoder 13. The operation in the handy mode is guaranteed by thinning out the image reading data output from the image reading unit 10 and outputting the image reading data at the specified period.

On the other hand, when using the image reading apparatus of the present invention in the automatic paper feed mode, the user mounts the handy image reading apparatus 1 on the base unit 2. By this mounting, the sheet separating member 35 comes into contact with the pick roller 16 and the driven roller 33 comes into contact with the moving roller 12, so that the automatic paper feeder is mounted, and image reading in the automatic paper feed mode can be realized. . That is, when the user turns on the motor 15, the pick roller 16 rotated by the motor 15 picks the sheets placed on the hopper 34 one by one, and the picked sheet is moved by the motor 15. By feeding the rollers 12 to the image reading unit 10, the image of the paper placed on the hopper 34 can be read in the automatic paper feed mode.

At this time, when the attachment / detachment sensor 20 detects that the protruding piece 32 of the base unit 2 is inserted and the automatic feed mode is set, the circuit board 11
According to an external instruction, when the motor 15 is of a type that cannot perform stepping control, the encoder 1
3, the image reading data output from the image reading unit 10 output at a specified period is thinned out and output. When the motor 15 is of a type capable of stepping control, it is related to the rotation pulse of the encoder 13. Instead, the image reading data output from the image reading unit 10 output at the specified period is output as it is, so that the operation in the automatic paper feed mode is guaranteed.

In the handy image reading apparatus 1 shown in FIG. 1, what kind of motor is used as the motor 15 for rotating the pick roller 16 and the moving roller 12 is described.
And did not elaborate. As this motor 15, a DC motor
Motor without detent torque such as
Uses a motor that rotates when electricity is not supplied
If you do, as mentioned above,
Image reading can be realized.

On the other hand, the image reading apparatus of the present invention, as the motor 15 of this, to use a motor having the detent torque, such as a pulse motor. Fig. 7 shows this configuration.
FIG. 3 illustrates an embodiment of the present invention in which Implementation of this
C Ndi image reading apparatus 1 used in the example, the motor 15
Is arranged rotatably around the motor gear 40 of the second gear train 17, operates in conjunction with the gear of the second gear train 17, and moves to the non-regular position set by the urging. A gear arm 41 for releasing the transmission operation between the motor 15 and the moving roller 12 by releasing the meshing of the gear train 17, and a gear arm spring 42 for urging the gear arm 41 to an irregular position. take. On the other hand, when the base device 2 is mounted on the handy image reading device 1, the gear arm 41 is rotated to the normal position against the urging force of the gear arm spring 42, whereby the second gear train 17 is rotated.
And a gear arm projection 43 for controlling the meshing of the gears to mesh with each other.

According to this configuration, the handy image reading device 1
When the gear arm 41 is removed from the base device 2, the transmission operation between the motor 15 and the moving roller 12 is released by setting the gear arm 41 to the irregular position by the urging force of the gear arm spring 42, and the moving roller 12 is moved. It becomes free state. Thereby, the user can scan the handy image reading device 1 on the paper to be image-read, and can read the image of the paper in the handy mode.

When the handy image reading device 1 is mounted on the base device 2, the gear arm 41 is rotated against the urging force of the gear arm spring 42 by the action of the gear arm projection 43 and set to the normal position. As a result, the meshing of the second gear train 17 meshes, whereby the transmission operation between the motor 15 and the moving roller 12 functions, and image reading in the automatic paper feed mode can be realized. .

FIG. 8 shows another embodiment of the present invention having a mechanism for protecting the pick roller 16 of the handy image reading apparatus 1 using the gear arm 41 used in the embodiment of FIG. Here, this figure assumes a handy mode state.

[0040] c Ndi image reading apparatus 1 used in this embodiment, is rotatably disposed around the rotation center of the pick roller 16, a protective cover 44 that covers the outer peripheral portion of the pick roller 16, the protection A protective cover torsion coil spring 45 for urging the cover 44 to a position other than the sheet facing position of the pick roller 16 is provided, and the gear arm 41 used in the embodiment of FIG. 7 is set by the urging force of the gear arm spring 42. When the protective cover 44 is rotated at an irregular position against the urging force of the protective cover torsion coil spring 45, the protective cover 4 is rotated.
A configuration is adopted in which a protective cover connecting member 46 that controls the pick roller 4 to be set at the sheet facing position of the pick roller 16 is provided.

According to this configuration, the handy image reading device 1
Is removed from the base device 2, the gear arm 41 is set to an irregular position by the urging force of the gear arm spring 42, and the protective cover connecting member 46 that rotates in conjunction with the gear arm 41 is attached to the protective cover torsion coil spring 45. By rotating the protective cover 44 against the force, the protective cover 44 is set at the position of the pick roller 16 facing the sheet. Thereby, at the time of the handy mode, the pick roller 16 that is not used in the handy mode is protected.

When the handy image reading device 1 is mounted on the base device 2, the gear arm 41 is set at a proper position by the action of the gear arm projection 43, and the protective cover connecting member 46 which rotates in conjunction with the gear arm 41 is rotated. Allows the urging force of the protective cover torsion coil spring 45 to set the protective cover 44 at a position other than the position where the pick roller 16 faces the sheet. Thereby, the realization of the image reading in the automatic paper feed mode is guaranteed.

FIG. 9 shows another embodiment of the present invention having a mechanism for protecting the hopper empty sensor 18 / paper top sensor 19 of the handy image reading apparatus 1 by using the gear arm 41 used in the embodiment of FIG. Is illustrated. here,
This figure assumes an automatic paper feed mode state.

[0044] c Ndi image reading apparatus 1 used in this embodiment, with a configuration that allows rotation of the hopper empty sensor 18 / paper top sensor 19, urges the hopper empty sensor 18 and the normal posture The torsion coil spring 47 for the empty sensor and the torsion coil spring 48 for the top sensor for urging the paper top sensor 19 to the normal posture state are provided. Further, the gear arm 41 used in the embodiment of FIG. At the irregular position set by the biasing force of
By rotating the hopper empty sensor 18 against the urging force of the empty sensor torsion coil spring 47,
An empty sensor connecting member 49 for moving the sensor arm 21 of the hopper empty sensor 18 into the apparatus,
By rotating the paper top sensor 19 against the biasing force of the top sensor torsion coil spring 48 when the paper top sensor 19 is at an irregular position set by the biasing force of the gear arm spring 42, the sensor arm 21 of the paper top sensor 19 is rotated.
And a top sensor connecting member 50 for moving the inside of the apparatus.

According to this configuration, the handy image reading device 1
Is removed from the base device 2, the gear arm 41 is set to an irregular position by the urging force of the gear arm spring 42, and the empty sensor connecting member 49 that rotates in conjunction with the gear arm 41 is attached to the empty sensor torsion coil spring 47. By rotating the hopper empty sensor 18 against the force, the sensor arm 21 of the hopper empty sensor 18 is moved into the inside of the apparatus, and the coupling member 50 for the top sensor, which rotates in conjunction with this, is connected to the torsion coil spring 48 for the top sensor. By rotating the paper top sensor 19 against the urging force, the sensor arm 21 of the paper top sensor 19 is moved into the apparatus. As a result, at the time of the handy mode,
The hopper empty sensor 18 / paper top sensor 19 that is not used in the handy mode is protected.

When the handy image reading apparatus 1 is mounted on the base unit 2, the gear arm 41 is set at a proper position by the action of the gear arm projection 43, and the empty sensor connecting member 49 which rotates in conjunction with this.
By allowing the biasing force of the torsion coil spring 47 for the empty sensor, the posture state of the hopper empty sensor 18 is set to a normal state, and the coupling member 50 for the top sensor, which rotates in conjunction with this, becomes By allowing the biasing force of the torsion coil spring 48, the posture state of the paper top sensor 19 is set to a normal state. Thereby, the realization of the image reading in the automatic paper feed mode is guaranteed.

Here, in this embodiment, the detachable sensor 20
Is arranged in the handy image reading apparatus 1,
By detecting whether or not the connecting member of the gear arm 41 is inserted, it is possible to detect whether the mode is the handy mode or the automatic sheet feeding mode. With this configuration, the projecting piece 32 of the base device 2 can be omitted.

In the embodiment shown in FIGS. 8 and 9, the pick roller 16 / hopper empty sensor 18 / paper top sensor 19 of the handy image reading apparatus 1 is operated by using the gear arm 41 used in the embodiment shown in FIG. A configuration to protect has been disclosed. On the other hand, as the motor 15, in the case of using a motor with no detent torque, does not have a gear arm 41, it is impossible to adopt the same configuration as it is. In such a case, if it is necessary to protect the pick roller 16 / the hopper empty sensor 18 / paper top sensor 19 with the Ha Ndi image reading apparatus 1, although this gear arm 41 moves in the same manner, the second gear Row 1
By providing those that do not have the ability to remove the 7 engagement of, allowing you to realize it.

FIG. 10 shows an embodiment of the present invention applicable to the embodiments disclosed in FIGS. 1 and 2 and the embodiments disclosed in FIGS. In this embodiment, the moving roller 1
Gear train 14 for transmitting the rotation of the second to the encoder 13
And the second gear train 17 for transmitting the rotation of the motor 15 to the pick roller 16 and the moving roller 12 as much as possible, thereby reducing the number of gears of the handy image reading apparatus 1. .

That is, the number of gears of the handy image reading apparatus 1 is reduced by branching the gear train from the second gear train 17 to the encoder 13 shown by hatching in the figure. Here, the gear α shown in the drawing branched from the second gear train 17 needs to have a property that the gear module on the encoder 13 side is smaller than the gear module on the moving roller 12 side.

[0051] Figure 11, instrumentation conventional start switch which has been required in the art can be omitted Ruha Ndi image reading apparatus 1
Illustrating the location configuration. Here, Ha Ndi image reading apparatus 1 of this, the read handy images used in embodiments disclosed handy image reading apparatus 1 and, FIGS. 7 to 9 for use in embodiments disclosed in Figures 1 and 2 device 1 is also applicable.

[0052] c Ndi image reading apparatus 1 of this is the mechanical structural, by slightly rotatable in the paper side around the fulcrum moving roller 12 meshing with the encoder 13, and the movement roller 12 first And a configuration having a rotary spring 50 for urging the rotatable moving roller 12 to rotate.

According to this configuration, the handy image reading device 1
Is pressed against the sheet by the user.
The rotatable movable roller 12 is rotated against the urging force of the first gear train 14 so that the movable roller 12 and the first gear train 14 are rotated.
The rotation of the moving roller 12 is transmitted to the encoder 13.

From this, when the rotation pulse of the encoder 13 is generated, the circuit board 11 of the handy image reading device 1 judges that the image reading state has been entered, and controls so that the output is not performed until then. Image reading unit 1
The image reading data from 0 (output at a specified period)
Processing is performed so as to output data by thinning out using the thinning circuit 23 described above. It should be noted that this function is not included in the circuit board 11 but may be incorporated in the image reading unit 10.

As described above, the handy image reading apparatus 1
Although so that the image reading is performed by, according to Ha <br/> Ndi image reading apparatus 1 of this, because it can omit the start switch, the user will be able to read an image by a simple operation Since the output of the image reading data is executed on condition that the rotatable moving roller 12 and the first gear train 14 mesh properly, the gap between the image reading unit 10 and the sheet is properly formed. As a result, there is an advantage that focused image reading data is output.

[0056] In this case, the Ha Ndi image reading apparatus 1 of this,
When applied to the handy image reading device 1 used in the embodiment disclosed in FIGS. 1 and 2 or the handy image reading device 1 used in the embodiment disclosed in FIGS. 7 to 9, the handy image reading device is used. When the device 1 is mounted on the base device 2, the moving roller 12 and the first gear train 14 mesh with each other against the urging force of the rotary spring 50.

[0057]

As described above, according to the present invention,
Accordance simple structure, ing to build an image reading apparatus capable of realizing the image reading by Handy mode and the automatic feed mode.

[Brief description of the drawings]

[1] instrumentation Ha Ndi image reading apparatus used in the present onset bright
FIG .

[Figure 2] Ru Ah <br/> the apparatus configuration diagram of a group member apparatus used in this onset bright.

FIG. 3 is an explanatory diagram of a sensor structure.

FIG. 4 is an explanatory diagram of a detachable sensor.

FIG. 5 is an explanatory diagram of a sheet separating member.

FIG. 6 is an explanatory diagram of a circuit function of a circuit board.

FIG. 7 is a Kazumi施例of the present invention.

FIG. 8 is another embodiment of the present invention.

FIG. 9 is another embodiment of the present invention.

FIG. 10 is another embodiment of the present invention.

[11] Ha Ndi image reading apparatus used in the present onset bright
It is a device block diagram .

FIG. 12 is an explanatory diagram of a conventional technique.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G06T 1/00 H04N 1/04 H04N 1/107

Claims (6)

(57) [Claims] 1. A and the image reading unit reads the images, image
From a moving roller that allows device moving toward the image reading how direction, and handy image reading apparatus comprising an encoder for detecting the rotational speed of the mobile roller, a base unit for detachably mounting the handy image reading apparatus in images reader to be configured, is required in the automatic feeding mode, a motor having the detent torque as a paper feed source, is required in the automatic feed mode, pick a sheet placed on the hopper A pick roller for transmitting the rotation of the motor to the pick roller and the moving roller as required in the automatic sheet feeding mode.
And a transmission mechanism as well as mounted on the handy image reading apparatus, is required in the automatic feeding mode, is a driven roller that follow dynamic to the mobile roller, requires the automatic sheet feed mode, placing the sheet a hopper, is required in the automatic feed mode, and a paper separating member for preventing double feed of the sheet by contact with the pick roller mounted to said base unit, further, the handy image reading apparatus, the operates in conjunction with the attachment and detachment state of the substrate unit, when not mounted and the base unit, further comprising a communicating moving member you cancel the transfer operation between the motor and the moving roller, characterized Image reading device. 2. The image reading apparatus according to claim 1, wherein the handy image reading apparatus is required in an automatic sheet feeding mode.
An image reading device comprising a paper sensor for detecting a paper state . 3. The image reading apparatus according to claim 2, handy image reading apparatus, by pressure with the paper sensor, the the paper sensor in conjunction with pressure means with you set the normal position, the interlocking member operating Te, when the handy image reading apparatus is not installed with the base unit, the cancel unit that was <br/> of moving the paper sensor device inside by releasing the urging pressure of 該付 pressure means An image reading apparatus, comprising: In view <br/> image reading apparatus described in any one of claims 4] claims 1-3, handy image reading apparatus, by detecting the movement of the continuous moving member, handy image reading apparatus and the substrate further comprising a detachable sensor that detect a detachment state of the device, an image reading apparatus according to claim. 5. The image reading device according to claim 1, wherein the handy image reading device is provided with a protective cover for protecting an outer peripheral portion of the pick roller and the protective cover. By pressing
Pressing means for setting the protective cover at a position other than the sheet facing position of the pick roller; and operating in conjunction with an interlocking member, the pressing means operating when the handy image reading device is not attached to the base unit. And an unlocking means for shifting the protective cover to the position of the pick roller facing the paper by releasing the applied pressure. 6. The image reading device according to claim 1, wherein the handy image reading device uses a transmission mechanism that transmits rotation of a motor to a pick roller and a moving roller. An image reading apparatus, wherein the rotation of the moving roller is transmitted to an encoder.