Abstract: A gear, a gear assembly, and an apparatus including the gear assembly are provided. The gear assembly includes two gears, and each of the gears has a ring-shaped body, a gear portion, and a ring-shaped flange. The ring-shaped body has a central axis, and the gear portion and the ring-shaped flange are around the central axis as a center and surround peripheries of the ring-shaped body. The ring-shaped flange is closely adjacent to the gear portion along an axial direction of the central axis. The ring-shaped flanges of the two gears lean against each other, and the gear portions of the two gears are engaged with each other.

Abstract: A driven roller unit and a paper feeding device are provided. The paper feeding device includes a frame, the driven roller unit and a driving roller. The frame has a dome concave. The driven roller unit has an omnidirectional ball, wherein the omnidirectional ball is in the dome concave. The driving roller is disposed above the frame and the driven roller unit. When the driving roller presses on the driven roller unit, an angle included by the driving roller and the driven roller unit is adjusted due to the rotation of the omnidirectional ball relative to the dome concave, and therefore the force applied on the driven roller unit is uniform.

Abstract: A cleaning module and a printer using the same is provided. The printer includes a roller module, a transfer belt, a toner cartridge assembly and the cleaning module. The transfer belt is looped around the roller module. The toner cartridge assembly is disposed beside the transfer belt and suitable for rotating to a standby position or a coloring position. The cleaning module includes a frame, a linking-up unit and a scraping unit. The frame is disposed at the roller module. The linking-up unit is pivotally connected to the frame and suitable for contacting the toner cartridge assembly. The scraping unit is connected to the linking-up unit. When the toner cartridge assembly is at the standby position, the scraping unit is contacted to the transfer belt. When the toner cartridge assembly is at the coloring position, the scraping unit is separated from the transfer belt.

Abstract: A transmitting module and a multi-functional printer (MFP) using the same are provided. The transmitting module includes at least two shafts and a conveyer belt. Each shaft has a circumference surface and multiple first fixing structures, and the first fixing structures are arranged in a row encircling the circumference surface. The conveyer belt encircles the shafts, and the conveyer belt has a body and multiple second fixing structures, where the fixing structures are arranged in a row on a bottom of the body. When the conveyer belt rotates along with the shafts, the second fixing structures engage with the first fixing structures correspondingly.

Abstract: A toner storage device adapted to accommodate a printing toner and a recycling toner and multi-function printer using the same are provided. The toner storage device includes a body and a partition. The body has an accommodating cavity. The partition is installed in the accommodating cavity of the body to make the accommodating cavity partitioned into a first sub-accommodating space and a second sub-accommodating space, wherein a volume of the first sub-accommodating space and a volume of the second sub-accommodating space of the accommodating cavity are varied with an amount of the printing toner and an amount of the recycling toner.

Abstract: A sheets-separating module and a multifunction printer using the same are provided. The sheets-separating module includes a body, an elastic element and a plurality of sheets-separating structures, in which the body has an opening, the elastic element is disposed in the opening of the body and has a first end and a second end. The first end of the elastic element connects the body, the second end thereof is a free end, and a section modulus of the elastic element is gradually descending from the second end to the first end. The sheets-separating structures are disposed on the elastic element.

Abstract: A cleaning module and a printer using the same is provided. The printer includes a roller module, a transfer belt, a toner cartridge assembly and the cleaning module. The transfer belt is looped around the roller module. The toner cartridge assembly is disposed beside the transfer belt and suitable for rotating to a standby position or a coloring position. The cleaning module includes a frame, a linking-up unit and a scraping unit. The frame is disposed at the roller module. The linking-up unit is pivotally connected to the frame and suitable for contacting the toner cartridge assembly. The scraping unit is connected to the linking-up unit. When the toner cartridge assembly is at the standby position, the scraping unit is contacted to the transfer belt. When the toner cartridge assembly is at the coloring position, the scraping unit is separated from the transfer belt.

Abstract: A fixing structure for print head carriage rod and a fixing method thereof. The fixing structure is simplified and is able to minimize the flexure of the print head carriage rod. The fixing structure includes a frame body disposed in a printing machine, and a carriage rod mounted on the frame body for a print head carriage to reciprocally travel on the carriage rod for printing operation. The frame body has sidewalls and support sections formed on the sidewalls for supporting two ends of the carriage rod. The fixing structure further includes retainers for securing the carriage rod to the frame body. The retainers are positioned on two sides of the support sections of the sidewalls to together with the support sections prevent the carriage rod from being flexed so as to avoid deterioration of printing quality.

Abstract: A scanning mechanism including a scanning unit, a rail and a transmission element is disclosed. The scanning unit has a connecting portion and a supporting portion, the scanning unit is slidely disposed on the rail through the supporting portion. The transmission element is connected to the connecting portion of the scanning unit to drive the scanning unit sliding along the rail, and the orthogonal projection of the connecting portion on the rail and the orthogonal projection of the supporting portion on the rail are overlapped with each other.

Abstract: A media storage device and a sectional image printing method are provided. The media storage device includes a main body, a sectional heating module and a pressing roller. The sectional heating module and the pressing roller are both disposed within the main body. The sectional heating module includes a body, a plurality of heaters and a power controller. The body is disposed within the main body, and the heaters are disposed on the body. The power controller includes a plurality of power circuits, and each of the power circuits is electrically connected with a corresponding one of the heaters to control the corresponding electrically connected heater to generate heat. The pressing roller is in contact with the heaters of the sectional heating module, and the heaters face the pressing roller. During a printing process, not all the heaters of the media storage device generate heat at the same time.

Abstract: A driven roller unit and a paper feeding device are provided. The paper feeding device includes a frame, the driven roller unit and a driving roller. The frame has a dome concave. The driven roller unit has an omnidirectional ball, wherein the omnidirectional ball is in the dome concave. The driving roller is disposed above the frame and the driven roller unit. When the driving roller presses on the driven roller unit, an angle included by the driving roller and the driven roller unit is adjusted due to the rotation of the omnidirectional ball relative to the dome concave, and therefore the force applied on the driven roller unit is uniform.

Abstract: A transmitting module and a multi-functional printer (MFP) using the same are provided. The transmitting module includes at least two shafts and a conveyer belt. Each shaft has a circumference surface and multiple first fixing structures, and the first fixing structures are arranged in a row encircling the circumference surface. The conveyer belt encircles the shafts, and the conveyer belt has a body and multiple second fixing structures, where the fixing structures are arranged in a row on a bottom of the body. When the conveyer belt rotates along with the shafts, the second fixing structures engage with the first fixing structures correspondingly.

Abstract: A transmitting module and a multi-functional printer (MFP) using the same are provided. The transmitting module includes at least two rotating shafts and a transmission belt. Each rotating shaft has at least one oblique cone-trough. The transmission belt surrounds the rotating shafts and rotates along with rotation of the rotating shafts. The transmission belt has a main body and at least one cone positioning structure, in which the cone positioning structure is disposed on a bottom surface of the main body and correspondingly tightly fits in the oblique cone-trough. When being applied to the MFP, the transmitting module provides a scanning or printing function according to configuration relations with other modules.

Abstract: A toner storage device adapted to accommodate a printing toner and a recycling toner and multi-function printer using the same are provided. The toner storage device includes a body and a partition. The body has an accommodating cavity. The partition is installed in the accommodating cavity of the body to make the accommodating cavity partitioned into a first sub-accommodating space and a second sub-accommodating space, wherein a volume of the first sub-accommodating space and a volume of the second sub-accommodating space of the accommodating cavity are varied with an amount of the printing toner and an amount of the recycling toner.

Abstract: A scanning device including a base, a guiding module and a scanning head is provided. The guiding module includes a guiding rod, a guiding element, a sliding element and an elastic element. The guiding rod is fixed to the base. The guiding element has a notch, wherein the guiding rod is slidingly disposed at the notch along a first axial direction. The sliding element is slidingly disposed at the guiding element along a second axial direction substantially perpendicular to the first axial direction. The elastic element is fixed to the guiding element and contacts with the sliding element, wherein the sliding element pushes the guiding rod to contact an inner wall of the notch along the second axial direction by an elastic force of the elastic element, so as to prevent the guiding rod from swaying during a scanning process.

Abstract: A sheets-separating module and a multifunction printer using the same are provided. The sheets-separating module includes a body, an elastic element and a plurality of sheets-separating structures, in which the body has an opening, the elastic element is disposed in the opening of the body and has a first end and a second end. The first end of the elastic element connects the body, the second end thereof is a free end, and a section modulus of the elastic element is gradually descending from the second end to the first end. The sheets-separating structures are disposed on the elastic element.

Abstract: A paper tray of printer is provided, which includes a paper tray body, a slide shaft, a first pick arm, a second pick arm and a paper width guide. The first pick arm is fixed on the slide shaft, and the second pick arm is slidely disposed on the slide shaft. The paper width guide is disposed on the paper tray body and is connected to the second pick arm through a linkage device to drive the second pick arm, so that a position of the second pick arm varies along with a position of the paper width guide. Accordingly, an interval between the first pick arm and the second pick arm can be varied along with a size of a paper, so as to avoid paper skew when the paper is fed.

Abstract: A paper tray of printer is provided, which includes a paper tray body, a slide shaft, a first pick arm, a second pick arm and a paper width guide. The first pick arm is fixed on the slide shaft, and the second pick arm is slidely disposed on the slide shaft. The paper width guide is disposed on the paper tray body and is connected to the second pick arm through a linkage device to drive the second pick arm, so that a position of the second pick arm varies along with a position of the paper width guide. Accordingly, an interval between the first pick arm and the second pick arm can be varied along with a size of a paper, so as to avoid paper skew when the paper is fed.

Abstract: A scanning device including a base, a guiding module and a scanning head is provided. The guiding module includes a guiding rod, a guiding element, a sliding element and an elastic element. The guiding rod is fixed to the base. The guiding element has a notch, wherein the guiding rod is slidingly disposed at the notch along a first axial direction. The sliding element is slidingly disposed at the guiding element along a second axial direction substantially perpendicular to the first axial direction. The elastic element is fixed to the guiding element and contacts with the sliding element, wherein the sliding element pushes the guiding rod to contact an inner wall of the notch along the second axial direction by an elastic force of the elastic element, so as to prevent the guiding rod from swaying during a scanning process.

Abstract: A paper tray of printer is provided, which includes a paper tray body, a slide shaft, a first pick arm, a second pick arm and a paper width guide. The first pick arm is fixed on the slide shaft, and the second pick arm is slidely disposed on the slide shaft. The paper width guide is disposed on the paper tray body and is connected to the second pick arm through a linkage device to drive the second pick arm, so that a position of the second pick arm varies along with a position of the paper width guide. Accordingly, an interval between the first pick arm and the second pick arm can be varied along with a size of a paper, so as to avoid paper skew when the paper is fed.