Abstract: A pixel clock generator includes a frequency divider 4 that generates a pixel clock PCLK based on a high frequency clock VCLK, a comparator 5 that calculates an error Lerr in the time obtained by integrating a cycle of the pixel clock PCLK for a target number RefN from a time when synchronization signals SPSYNC and EPSYNC are detected, a filter 6, and a frequency calculating unit 7 that sets a frequency dividing value M of the frequency divider 4. The filter 6 and the frequency calculating unit 7 calculate an average of a frequency of the pixel clock PCLK based on the error Lerr, determine a reference error value from the error Lerr in N-cycles, calculate offset values of the frequencies of N pieces of pixel clocks PCLK based on a difference between the reference error value and the error Lerr, and calculate the frequency dividing value M based on a result obtained by adding the circularly selected offset values and the average of the frequency of the pixel clock PCLK.

Abstract: An optical module 100 includes an optical path unit 101 including a plurality of reflectors 104 for securing an optical path of reflected light from a manuscript, an image processing unit 102 including a reading device 105 which reads image information on the manuscript based on the reflected light from the manuscript entered via the optical path, and a connecting component 103 which connects the optical path unit 101 and the image processing unit 102 so that their positional relation will become a prescribed state.

Abstract: A device, system and method for portable data scanning and transmission are provided. The device is a portable appliance including resources for interoperating with a scanner to scan images of paper based documents, and a memory for storing the images without the need for a personal computer. The portable appliance is also interoperable with a mobile communication means to transfer the images to a remote computer. The portable appliance may include a computer program operable to enable processing of the images, including control routines for enabling data collection, storage and transfer to the remote computer. The invention can be implemented as an in-cab scanning system operable with existing in-cab communication systems.

Abstract: An image reading apparatus includes a casing, a light emitting section, a substrate, a support member, and a light guide. The light emitting section includes plural point light sources disposed in a row. The light emitting section is installed to a first face of the substrate. The support member is installed to the casing and supports a second face of the substrate at a projection portion where a position of the light emitting section is projected at the second face of the substrate. The light guide is installed to the casing adjacent to the light emitting section, and guides light from the light emitting section to a read-face.

Abstract: A solid-state image pickup device and image pickup method eliminate a dark-current component by adjusting the black level appropriately even if the dark-current component varies among horizontal lines. A pixel array includes light-receiving pixel elements and light-blocking pixel elements disposed such that horizontal lines include the light-blocking pixel elements individually. A readout circuit block reads pixel signals of each of the horizontal lines from the pixel array, inputs the pixel signals to ADC circuits (column ADC circuit block), and outputs the pixel signals of the light-blocking pixel elements. A ramp signal generation circuit obtains the pixel signals of the light-blocking pixel elements output from the readout circuit block, generates a ramp signal by using a reference level of AD conversion adjusted for each of the horizontal lines in accordance with the obtained pixel signals of the light-blocking pixel elements, and inputs the ramp signal to the ADC circuits.

Abstract: An image processing device includes: a reading unit to read information stored in a detachable storage medium; a transmission unit to transmit image data outwardly; a determination unit to determine, in a case where the transmission unit transmits the image data, whether or not the information stored in the detachable storage medium is necessary; and a control unit to execute, in a case where the determination unit determines that the information stored in the detachable storage medium is necessary, control to maintain a state capable of reading the information stored in the detachable storage medium until the reading unit reads from the detachable storage medium the information necessary to transmit the image data.

Abstract: A scanner includes a reference backing member, a scan assembly and a light-obstruction member. The scan assembly, disposed opposite the reference backing member, scans a reference block of the reference backing member and an original block of an original in a scan region. The scan assembly includes a light source for emitting a first light beam in a direction toward the reference block, and emitting a second light beam in a direction toward the original block. The light-obstruction member, disposed between the reference backing member and the scan assembly, includes a light-obstruction part, disposed in a first optical path of the first light beam and outside a second optical path of the second light beam, for blocking a portion of the first light beam from reaching the reference block.

Abstract: A light guide includes: a body which is a light-transmitting member and has light incidence surfaces as two end surfaces in a longitudinal direction and a light output surface which is one of side surfaces extending in the longitudinal direction; and light absorbing members which are provided on the light output surface or at least one, adjacent to the light output surface, of the side surfaces of the body and have a function of absorbing light that shines on the body from outside the body.

Abstract: Provided is an illuminator including a light source unit having a light emitting surface, and a light guiding member guiding a light beam to an original disposed on an original plate. An intersection of a center axis of a light emitting surface and the original plate is separated from a reading position of the original in a sub scanning direction, the light guiding member includes an incident surface to which the light beam emitted from the light source unit is incident, a reflection surface that reflects the incident light beam, and an exiting surface exiting the incident light beam and the reflected light beam, and in the sub scanning section, the light beam having the highest light intensity in the light beams from the light source unit is deflected at the incident surface toward the reading position of the original with respect to the center axis.

Abstract: A computer readable medium storing a program causing a computer to execute a process for managing image information, the process includes: accepting image information and registration destination information that indicates a registration destination of the image information; acquiring a registration condition determined based on feature information of the image information that is allowed to be registered in the registration destination indicated by the accepted registration destination information; extracting the feature information from the accepted image information; and registering the accepted image information in the registration destination when the extracted feature information satisfies the acquired registration condition.

Abstract: A document illuminating system includes a plurality of light emitting elements arranged in an array, a reflective element which guides light emitted from the light emitting elements to a document read area of a certain width and length. The reflective element includes first to third reflective portions. The second reflective portion includes one or more planar reflective faces and is disposed so that the reflective faces reflect light from the light emitting elements to one or both of the first and third reflective portions without other reflective elements. The first and third reflective portions each include one or more planar reflective faces and are disposed so that their reflective faces oppositely illuminate the document read area together by reflecting light from one or both of the light emitting elements and the second reflective portion to the document read area without other reflective elements.

Abstract: To control the potential distribution generated in a well at the time of amplification and reduce a shading in a solid-state imaging device of amplification type, the amplification type solid-state imaging device of the present invention comprises a plurality of picture elements each including photoelectric conversion elements formed in a second conductivity type common well inside a first conductivity type substrate, wherein a plurality of well contacts are disposed inside a picture element array area.

Abstract: Methods, algorithms, software, apparatuses and systems for processing image data for imaging devices having irregular scan paths (e.g., scan paths that deviate from a conventional horizontal and/or straight line). The irregular scan paths generally correspond to actual locations of a line of output from an image output device (e.g., a printer). The method generally includes steps of selecting one or more of the input pixels, correlating a location of the selected pixel with a location on an irregular scan path, and producing an adjusted pixel based on a value of the selected pixel, the location on the irregular scan path, and/or values of one or more pixels near the selected pixel.

Abstract: A limiting member (91) includes a main body (911) and a convexity (912) formed at the upper face of the main body (911). The convexity (912) protrudes like a key toward the front-face side of a case (1). The case (1) has a hole (92) storing the limiting member (91), the hole (92) having an inclined face (921) that is inclined obliquely upward from the rear-face side to the front-face side of the case (1). The hole (92) has a depth larger than the height of the limiting member (91) on the rear-face side, and has substantially the same depth as the front-face side height of the main body (911) on the front-face side. A document cover (4) has a hole (93) including a U-shaped concavity (931) that is open on the rear-face side of the case (1), formed on the front-face side of the case (1). When the limiting member (91) is located on the front-face side of the case (1), the convexity (912) engages with the U-shaped concavity (931).

Abstract: A stacking device includes a contact section with which top ends of the recording media in a conveying direction, conveyed into the storage space, make contact so stop the recording media at a storage position, a media move section which comprises a plurality of partition members, forms a plurality of spaces capable of storing the recording media between the partition members, stores the recording media stopped at the storage position into arbitrary one of the plurality of spaces, and moves the partition members thereby to move at least a part of the top ends of the recording media to a pushup position different from the storage position, and a lift section which pushes up, to the carry-out section, the recording media moved to the pushup position by the media move section.

Abstract: An image forming apparatus includes a scanning device and a printing device. The scanning device and the printing device are configured to be separately arranged when the image forming apparatus is in use. The printing device includes a control unit that transmits and receives signals to and from a plurality of units included in the scanning device, and a power supplying unit that supplies electric power to the units. The scanning device includes a first relay substrate that receives electric power from the power supplying unit and distributes the electric power to the units, and relays signals between each of the units and the control unit.

Abstract: A large-capacity multiplexing system assuring image quality and robustness is provided. An image-processing apparatus multiplexing additional information on image information includes a first multiplexing unit that is configured to perform pseudo-halftone processing so that the image information is changed into a first quantization level of multi-level gradation and that is configured to multiplex first information of the additional information at the pseudo-halftone-processing time, and a second multiplexing unit that is configured to perform the pseudo-halftone processing so that the first quantization level subjected to the pseudo-halftone processing by the first multiplexing unit is changed into a second quantization level of gradation lower than the multi-level gradation and that is configured to multiplex second information of the additional information at the pseudo-halftone-processing time.

Abstract: A portable device is configured to obtain an image of a document, the document being of no predefined format and containing numerical data. The numerical data is extracted and automatically organized into a report in a predefined or customized format and stored into a database. The database is accessible and searchable by a user to obtain either the numerical data of the image or the report.

Abstract: An image reading apparatus that reads an image. Image data generated by a scanner reading an original is stored in a RAM. The size of the image data and the size of a region for storing the image data in the RAM are compared with each other. The image data is divided when the size of the image data is larger than the size of the region for storing the image data in the RAM. One of a plurality of pieces of image data divided from the image data is stored in the RAM, and the format of the image data stored in the RAM is converted. One image file including image data obtained by converting each piece of the plurality of pieces of image data is generated.

Abstract: Systems and methods for obtaining and linking scanned images are disclosed. An exemplary system includes an imaging device. The imaging device includes a processor and memory in electronic communication with the processor. Instructions are stored in the memory. The instructions are executable to implement a method. A first scanned image of a multi-page document is obtained. The first scanned image is stored in the memory and is sent to a destination device. A second scanned image of the multi-page document is obtained. The second scanned image is stored in the memory of the imaging device such that the first scanned image is not needed. The second scanned image is sent to the destination device. The second scanned image is linked to the first scanned image in a logical multi-page scanned image wherein the first scanned image and the second scanned image are not in the same electronic file.

Abstract: A scanning apparatus having dual power mode is described. The scanning apparatus includes a detection module, a switch unit, and a power controller. The detection module detects a first voltage signal and a second voltage signal for generating a detecting signal. The switch unit receives the commands from the power controller for outputting the first voltage signal and/or the second voltage signal to the image acquiring device of the scanning apparatus. The power controller determines whether the first voltage signal is detected according to the detecting signal. While the first voltage signal is detected, the power controller controls the switch unit to output the first voltage signal and/or the second voltage signal to the image acquiring device. While the first voltage signal is not exist, the power controller controls the switch unit to output the second voltage signal to the image acquiring device.

Abstract: An image reading apparatus includes: an original reading unit that includes a plurality of first and second image sensor chips each arranged at a predetermined interval in a row along a main-scanning direction, wherein the two rows are arranged so that the first chips overlap the second chips in a zigzag manner in a sub-scanning direction; an image-data generating unit that generates first image data by correcting image data with a first correction coefficient, and generates a plurality of pieces of second image data by correcting image data with a plurality of types of second correction coefficients; a comparing unit that compares image data in an overlapping portion between the first image data and each of the plurality of pieces of second image data; and an image-data selecting unit that selects a piece of second image data based on a comparison result.

Abstract: A scanning optical device includes a rotating polygonal mirror having a plurality of reflecting faces. A first light source emits a first light beam from one section obtained by sectioning the scanning optical device with a plane passing through the rotation axis of the rotating polygonal mirror. A second light source emits a second light beam from the other section. The first calculation unit calculates scan time of the first light source. The second calculation unit calculates scan time of the second light source. The jitter correction unit corrects jitter by controlling a pixel clock supplied to the first light source according to the scan time of the second light source. The jitter correction unit also corrects jitter by controlling a pixel clock supplied to the second light source according to the scan time of the first light source.

Abstract: The invention describes an image reading device having a housing, a transparent panel, an image sensor, a carriage, and an electric cable. The housing has a first, second, and third surface. The transparent panel defines a portion of the first surface. The image sensor extends in a first direction, and is mounted to the carriage and optically reads a document through the transparent panel while the carriage reciprocates in a second direction. The electric cable is electrically connected to the image sensor, and includes a band surface portion having a band surface and extending in a third direction intersecting the first and second direction. The electric cable also has a first end portion attached to the carriage; and a second end portion attached to the second surface. At least a portion of the electric cable is twisted such that the band surface and the third surface are not parallel.

Abstract: A detecting unit detects output-prohibit area information indicating an output-prohibit area from image data. An identifying unit identifies the output-prohibit area in the image data based on the output-prohibit area information detected by the detecting unit. A masking unit performs a masking on the output-prohibit area identified by the identifying unit. A rearranging unit rearranges an image of an area other than the output-prohibit area over the output-prohibit area on which the masking is performed by the masking unit. An outputting unit outputs image data obtained by rearranging the image by the rearranging unit.

Abstract: A stereoscopic image display apparatus includes a display panel and an image conversion sheet. The display panel includes a plurality of pixel units. Each pixel unit has a zigzag shape that extends in a first direction. The image conversion sheet includes a plurality of lens units. Each lens unit extends in the first direction and is disposed in a second direction different from the first direction. A plurality of the lens units is disposed in parallel with each other.

Abstract: An image forming apparatus includes an apparatus casing installing an image formation section, an upper cover member that swingably covers and uncovers the apparatus casing, and an image reading unit supported by the apparatus casing via the upper cover member. A lock device is provided to maintain the upper cover member in a closed state. An unlock device is provided to unlock the lock device. An unlock operation section is displaced by an operator and activates the unlock device to operate when the lock device is unlocked. An unlock operation invalidating mechanism is provided to invalidate an unlock operation executed through the operation section by interrupting transmission of the displacement of the operation section to the lock device when unlock is prohibited.

Abstract: An information processing apparatus includes an execution period specifying unit, a first calculation unit, and a second calculation unit. The execution period specifying unit specifies an execution period of each of plural image processing operations executed by plural image processing apparatuses within a given period of time in the past. The first calculation unit calculates an amount of power estimated to be consumed by a replaceable image processing apparatus executing the plural image processing operations if it is assumed that the plural image processing apparatuses have been replaced by the replaceable image processing apparatus within the given period of time. The second calculation unit calculates a total amount of power estimated to be consumed by the replaceable image processing apparatus if it is assumed that the plural image processing apparatuses have been replaced by the replaceable image processing apparatus within the given period of time.

Abstract: A sheet-fed scanning device with cleaning mechanism is provided. The sheet-fed scanning device includes a housing, a scanning module for scanning a fed-in document, and a cleaning curtain whose one end is fixed on the sheet-fed scanning device. The cleaning curtain is disposed in a sheet-fed direction at the front end of the scanning module, and the edge of the other end of the cleaning curtain is elastically in contact with the fed-in document for cleaning a to-be-scanned surface of the fed-in document. The invention is simple in structure and effective in cleaning the fed-in document. The cleaning mechanism does not cost much, but avoids the scanning quality being affected due to the large friction of the cleaning element. The cleaning mechanism ensures long-term cleanness of the to-be-scanned surface of the fed-in document as well as the cleanness of the glass window of the scanning module and the scanning quality.

Abstract: An image forming apparatus that is capable of carrying out processes such as an image forming process in an efficient manner while reducing downtime. Laser beam is emitted onto an intermediate transfer belt. The light intensities of light scattered from the laser beam reflected by at least a part of the surface of the intermediate transfer belt are detected, and light intensity distribution information on the distribution of the detected light intensities are acquired. Phase information on phases on the intermediate transfer belt is acquired based on the light intensity distribution information. An image forming process in which an image is formed on the intermediate transfer belt is carried out in synchronization with a predetermined phase included in the acquired phase information.

Abstract: A method for ringtone, voice, and sound notification of printer status, comprising obtaining status information of a printer, converting it into an audible report, and delivering the audible report. The method is especially useful for visually-impaired users and for shared printers in crowded situations where it is difficult for each user to see the panel or monitor display. The methods also include detection by the events controller, UI manager instructing an audio manager, codec decoding an audio file in firmware and hardware organization; job owner identification information embedded into a print job with a unique tag; user identification sound data embedded in a print job; audible report for multiple jobs in a job queue, with positional information; text-to-speech conversion; unique ringtone melody for each user, comprising department prefix, higher pitch modulation for higher priority, and automatically converting an alphanumeric character into the corresponding note.

Abstract: An image forming apparatus includes a reader connecting unit capable of being connected with an original document reader. The original document reader can be a color original document reader that reads original documents in color mode or a monochrome original document reader that reads original documents in monochrome mode. A control unit receives original document data from the original document reader connected to the reader connecting unit, subjects the original document data to prescribed processing corresponding to the format of the original document data and generates image data. Finally, an image forming unit forms an image based on the image data.

Abstract: An image-capturing apparatus includes an image-acquiring unit which acquires an image that is captured by photographing a photographic subject which is laid on an arbitrary place, a difference image producing unit which produces a difference image between the captured image that is acquired by the image-acquiring unit and an image which is captured before the photographic subject is laid, a contour extraction unit which extracts contour information of the photographic subject from the difference image that is produced by the difference image producing unit, and an image conversion unit which corrects a distortion of the captured image on the basis of the contour information that is extracted by the contour extraction unit.

Abstract: To control the potential distribution generated in a well at the time of amplification and reduce a shading in a solid-state imaging device of amplification type, the amplification type solid-state imaging device of the present invention comprises a plurality of picture elements each including photoelectric conversion elements formed in a second conductivity type common well inside a first conductivity type substrate, wherein a plurality of well contacts are disposed inside a picture element array area.

Abstract: An image reading device and a method for manufacturing the same are provided, where the image reading device is capable of being assembled more efficiently. The image reading device includes: an optical part, extending long in a direction; a case, having an accommodating portion for accommodating the optical part; and a light receiving component, accommodated in the case. The optical part is fixed in the accommodating portion through a first adhesive and a second adhesive with hardening time longer than that of the first adhesive.

Abstract: In a system and method for processing a form comprising a plurality of entry markings, an area-array image sensor may capture an image of the form in free-space without requiring relative movement of the sensor and the form. A processor may interpret the captured image to determine at least a first entry selection based, at least in part, on the position of at least one of the plurality of entry markings with respect to at least one other marking in the image.

Abstract: Method and image scanning apparatus comprising an image capture unit having an illumination assembly for generating input light; a printed circuit board mounted to the image capture unit, a cooling unit generating an airflow which cools the illumination assembly of the image capture unit as well as the critical components mounted on the printed circuit board and the optical components of the image capture unit; and an adjustable baffle member moveably mounted to the frame of the image scanning apparatus for controlling the path of the airflow relative to the lamp. The cooling unit comprises at least one fan with the fan generating airflow for cooling the lamp of image capture unit.

Abstract: An image reader includes a casing, a contact glass plate, a contact image sensor, and a sliding mechanism; wherein the contact image sensor has a housing, a light source attached to the housing so as to face the contact glass plate, a plurality of light receiving elements attached to the housing so as to face the contact glass plate and aligned in parallel in a longitudinal direction of the housing, and a bearing formed integral to the housing at a position below a lower surface of the housing; and the sliding mechanism includes a guide shaft provided on the casing and extending in a short direction of the housing and inserted through the bearing, and an urging member elastically which urges the guide shaft toward the contact glass plate so that the housing is pressed against the contact glass plate.

Abstract: An optical device equipped with a mirror which reflects light, include a plurality of first receiving parts that touch one face of one of ends in a lengthwise direction of the mirror; a plurality of first pressing parts that touch a face opposing to the face to which the first receiving parts touch, and press the mirror with elastic force toward the first receiving parts.

Abstract: A conveyance device includes a motor, a conveyance unit, a movement detection signal output unit, a storage unit, a time measurement unit, a first updating unit, a standby time setting unit, a second updating unit, a manipulated variable determination unit, and a motor driving unit. The standby time setting unit sets a value larger than a parameter value TX stored in the storage unit as a standby time TW. The second updating unit updates the parameter value TX stored in the storage unit to the standby time TW each time the elapsed time measured by the time measurement unit reaches the standby time TW.

Abstract: A covering device which includes a cover member that selectively covers a body, a first hinge mechanism, and a second hinge mechanism. The first hinge mechanism includes a first movable member that is pivotally coupled to the cover member and slidably attached to the body. The first movable member is configured to move relative to the body in a predetermined direction. The first hinge mechanism further includes a brake member which generates a brake force that applies resistance against the first movable member when a force is applied to move the first movable member relative to the body in the predetermined direction. The first hinge mechanism is positioned further from a center of gravity of the cover member than the second hinge mechanism.

Abstract: An image scanning apparatus according to the invention includes: a scanning unit configured to scan each of plural images from plural originals that are inputted; a rotation designating unit configured to designate rotation of the plural images that are scanned, so that an orientation of the plural images that are scanned coincides with a desired image orientation; a first image rotating unit configured to rotate the image that is scanned, in accordance with the designated rotation of the image; an orientation determining unit configured to determine whether the image orientation rotated by the first image rotating unit coincides with the desired image orientation or not; and a second image rotating unit configured to, for an image determined as not coinciding by the orientation determining unit, further rotate the orientation of the image so that the orientation coincides with the desired image orientation.

Abstract: A lighting unit, includes: a light source section wherein a plurality of light-emitting sources are arranged in a direction perpendicular to a direction of each light-emitting optical axis of each light-emitting source and linearly at predetermined intervals; and a reflecting section which reflects light emitted toward a direction along a document mounting surface from the light source section arranged along the document mounting surface toward an irradiated region of the document mounting surface, the reflecting section having: a first reflecting surface disposed closer to the light source section than to the irradiated region; and a second reflecting surface disposed more distant from the light source section than from the irradiated region.

Abstract: A scanner device includes a scanner body formed with a document insertion opening and a document ejection opening and is configured so that a document taken in from the document insertion opening is read and then ejected from the document ejection opening. The scanner device further includes an upper surface cover covering the upper surface of the scanner body and a front surface cover covering the front surface of the scanner body. The front cover is connected at a lower end side thereof to the lower front part of the scanner body and connected at an upper end side thereof to pivotably connected to the front end side of the upper surface cover. By opening the front surface cover from the front surface of the scanner body, the upper surface cover and front surface cover form a document ejection tray.

Abstract: A system for scanning paper media is disclosed and may include at least one microprocessor. The system may also include a scanner connected to the microprocessor. The scanner may simultaneously scan two or more printed pages using computed tomography and send a three-dimensional data set to the microprocessor that represents the printed pages.

Abstract: Apparatus and methods are provided which allow the rapid collection of image data in situations where ancillary equipment must be controlled and co-ordinated as part of an image formation process, such as confocal microscopy for example. The apparatus includes control means (20?) for co-ordinating the operation of the apparatus, and operable to receive a first trigger signal (33, 33?, 37) indicating the completion of an operation from one component and transmit a second trigger signal (27, 27?) to start an operation by another component in response to the first trigger signal. Such a configuration is operate to reduce delays encountered in operation of the apparatus.

Abstract: An image recording apparatus including a main frame including (a) a pair of side plates facing each other in one direction and (b) a base plate whose opposite end portions in the one direction are respectively supported by the pair of side plates; a guide member provided at an inside area interposed between a pair of side plates in the one direction, so as to define a conveying path through which a recording medium is conveyed; and a sensor device supported by one of the pair of side plates and configured to sense the recording medium conveyed through the conveying path.

Abstract: An image processing apparatus includes an address specifying unit, a reading unit, a writing unit, and a shifting unit. The address specifying unit specifies an address in a storage device that stores therein pixel data of an image. The reading unit reads the pixel data from the address by a line pixel amount. The writing unit writes the pixel data in an output storage unit. The shifting unit shifts the address in either one of a first direction along a sub-scanning direction and a second direction opposite to the first direction by a predetermined amount.

Abstract: An image reading apparatus in which cross-talk noise occurring between plural reading units is reduced, an image reading method and an image reading program are provided. There are included plural reading units that respectively operate at different timings, a noise calculation unit that acquires first read data as a result of reading of a first read object as the read object by the plural reading units, acquires an operation state of the plural reading units during the reading of the first read object, and calculates, based on the operation state and the first read data obtained in the operation state, noise information based on the operation state, and a noise removal unit that acquires second read data as a result of reading of a second read object as the read object different from the first read object by the plural reading units, and removes noise from the second read data based on the noise information calculated by the noise calculation unit.

Abstract: A power transmission switching mechanism for office machine is provided. The power transmission switching mechanism has simple structure and enables the office machine to commonly use a motor to execute scanning and printing works. The power transmission switching mechanism includes a rotary shaft, a drive gear mounted on the rotary shaft, an actuator reciprocally movable on the rotary shaft and a driving gear for transmitting power of a motor to the drive gear. The drive gear has a spline. The actuator can be selectively moved forward or backward to make the spline disengaged from a first gear mounted on the rotary shaft or engaged with the first gear. When the spline is disengaged from the first gear, the power of the motor is transmitted to a scanning module. When the spline is engaged with the first gear, the power of the motor is transmitted to the rotary shaft for printing work.