Abstract: A movable paper guide structure of a label printer includes: a paper guide body installed in the label printer including a roller and a print head; a movable unit that is movably installed on the paper guide body close to one end of the print head, adapts to a displacement of the roller and the print head because of a changed contact position, and keeps approaching the print head during a print process of the label printer for neither gap between the tip of the movable unit and the print head nor other problems such as a label sticker on printing paper improperly peeled off, printing crooked and paper jam.

Abstract: A portable label printer for printing content onto a surface of a label is provided. The label has a chip disposed therein. The portable label printer includes a main body, an RFID antenna assembly, a front cover unit, a back cover unit, and a print head module. The front and back cover units are disposed in the main body, and a paper exit port is formed between the front and back cover units. The RFID antenna assembly is disposed in the main body and adjacent to the paper exit port. The print head module is disposed in the main body and under the RFID antenna assembly. The label first passes through the print head module, and then passes through the RFID antenna assembly. When the label passes through the RFID antenna assembly, the RFID antenna assembly performs data reading or data writing on the chip of the label.

Abstract: A ribbon rewinding mechanism for providing stable ribbon tension in a printer includes a base body, a supply shaft assembly, a take-up shaft assembly and a transmission system. Each of the supply shaft assembly and the take-up shaft assembly has an axis rod, an outer cover and an elastic member. The outer cover and the axis rod drive each other through the elastic member. The outer covers of the supply shaft assembly and the take-up shaft assembly are connectable to the two ends of a ribbon, respectively. The axis rods of the supply shaft assembly and the take-up shaft assembly are connected to the base body and the transmission system through unidirectional transmission elements, respectively, so that the ribbon can be stably and continuously rewound for a distance needed.

Abstract: A label printer includes a platen roller, a printing device, a ribbon conveying device, and a peeling assembly disposed within a machine housing which defines a conveyance channel therein for conveying a label sheet, and a print area between the platen roller and the printing device. The peeling assembly has a peeling member which is disposed at an end of the printing device and immediately downstream of the print area, and which has a peeling edge that faces and extends across the print area and that is configured to be inserted between an upper major surface of the label sheet and a carbon ribbon so as to facilitate output of the printed label sheet.

Abstract: An online data validator is a digital imaging system integrated onto the front side of a printing unit wherein an exit of the printing unit is set on the same side close to the online data validator for a media exiting therefrom. The online data validator comprises a controller facilitating communication with a printing unit controller and controlling overall operation of the online data validator functions; a camera module including a sensor PCB and an optical lens, wherein the sensor PCB contains a camera sensor for capturing 2D digital images of moving labels; and a light source module including a lightbar, a lightbar PCB, a Fresnel lens and a window for providing uniform and flattened illumination on the media.

Abstract: A smart mobile tag printer includes a memory unit, a NFC transfer module, a control and communication module, and a printing unit. The memory unit stores a first related information corresponding to a tag serial number of the first data set. The NFC transfer module reads a first data set from a NFC identification tag. The control and communication module downloads a second data set from a database of the back-end server to the memory unit according to the tag serial number when the control and communication module is connected with the back-end server according to a server address value of the first data set. The printing unit prints out a combination of the first data set and the first related information, or prints out a data containing the second data set.

Abstract: A pressure-balanced mechanism for a print head includes a fixation frame, a pivot point assembly, a print head assembly and a depression assembly. The pivot point assembly further includes a supportive shaft and a pivotal structure. The supportive shaft is connected to the fixation frame. The pivotal structure is to movably sleeve the supportive shaft. The print head assembly further includes a frame structure and a print head module. The frame structure is to sleeve the supportive shaft and has the pivotal structure to contact at an inside thereof. The print head module is mounted inside the frame structure by separating from the pivotal structure. The depression assembly further includes a fix shaft and two depression structures. The fix shaft is connected to the fixation frame. The depression structure slippery along the fix shaft can contact elastically the frame structure outside to the print head module.

Abstract: A dual-direction positioning device includes a main body, a first clamping structure, a second clamping structure, a first swing arm, a second swing arm, a coupling unit, and a first elastic element. The main body has a guiding trench portion. The first clamping structure and the second clamping structure are to and fro movably assembled to the guiding trench portion. The first swing arm is rotatably assembled on the first clamping structure and has a first engaging portion. The second swing arm is rotatably assembled on the second clamping structure and has a second engaging portion. The first engaging portion and the second engaging portion are rotatably assembled on the coupling unit and engaged with each other. The first elastic element has a first fixed end located between the first clamping structure and the second clamping structure and a first connecting end located on the first clamping structure.

Abstract: A dual-direction positioning device includes a main body, a first clamping structure, a second clamping structure, a first swing arm, a second swing arm, a coupling unit, and a first elastic element. The main body has a guiding trench portion. The first clamping structure and the second clamping structure are to and fro movably assembled to the guiding trench portion. The first swing arm is rotatably assembled on the first clamping structure and has a first engaging portion. The second swing arm is rotatably assembled on the second clamping structure and has a second engaging portion. The first engaging portion and the second engaging portion are rotatably assembled on the coupling unit and engaged with each other. The first elastic element has a first fixed end located between the first clamping structure and the second clamping structure and a first connecting end located on the first clamping structure.

Abstract: A peel-off module of a printing device is provided for peeling off consumables from a consumable tape. The peel-off module is located on a cover of the printing device and comprises at least a main body, a peeling bar, and a peeling roller module. The main body has at least two guiding slots. The peeling bar is connected to the main body for peeling off the consumables from the consumable tape. The peeling roller module is movably assembled to the at least two guiding slots. When an user wants to use the printing device, the peeling roller module is pushed along the at least two guiding slots to a first stop point of the at least two guiding slots and then is pressed down to a second stop point on one of the at least two guiding slots to have the peeling roller module steadily clamping the consumable tape.

Abstract: A tension adjustment device includes a swing arm having a central portion defining a pivot point; a tape guide rod sleeved rotatably on a left portion of the swing arm; a stop block disposed on the swing arm; a biasing member having one end fixed to a fixing element and a second end biasing the swing arm; a carrier disk disposed adjacent to and biased by the stop block; and a reel of carbon tape mounted on the carrier disk, and having a carbon tape with a predetermined tape section trained around the tape guide rod in such a manner to be dispensed outward along a dispensing path. During the dispensing operation, a total tension force is generated on the tape guide rod due to two tension forces caused by trained on of the predetermined tape section, wherein, the stop block disengages from the carrier disk.

Abstract: A device for positioning a platen roller is provided, the device including a body, a first clip, a second clip, a first rotating arm, a second rotating arm, a first linkage, a second linkage and a first elastic element. The first clip and the second clip are disposed movably on the body; the first and the second rotating arm are disposed rotatably on the body; the first linkage couples the first rotating arm and the first clip; the second linkage couples the second rotating arm and the second clip; the first elastic element connects the first clip and the second clip, wherein when the first clip and the second clip move toward a first moving direction and a second moving direction respectively, the first elastic element provides elasticity so that the first clip and the second clip restore.

Abstract: A horizontal adjustment device of upper base of barcode printer includes a barcode printer chassis formed with at least one threaded hole. A printing-device upper base is mourned to a chassis side wall of the barcode printer, and having a through bore. At least one adjustment bolt has an end received through the through bore, and is rotatably coupled with an end of the through bore. The adjustment bolt has an opposite end forming at least one screwing engagement section. The screwing engagement section engages with the threaded hole, and another end of the adjustment bolt is rotatably received in the opposite end of the through bore. At least one adjustment threaded fastener engages the adjustment bolt so that the printing-device upper base is adjusted to move horizontally by rotating the adjustment threaded fastener and the adjustment bolt.

Abstract: A horizontal adjustment device of upper base of barcode printer includes a barcode printer chassis formed with at least one threaded hole. A printing-device upper base is mourned to a chassis side wall of the barcode printer, and having a through bore. At least one adjustment bolt has an end received through the through bore, and is rotatably coupled with an end of the through bore. The adjustment bolt has an opposite end forming at least one screwing engagement section. The screwing engagement section engages with the threaded hole, and another end of the adjustment bolt is rotatably received in the opposite end of the through bore. At least one adjustment threaded fastener engages the adjustment bolt so that the printing-device upper base is adjusted to move horizontally by rotating the adjustment threaded fastener and the adjustment bolt.

Abstract: A printing engine module includes at least a base, a printing assembly, a carbon ribbon reel, a carbon ribbon collection shaft, a power transmission device, and a plurality of transmission elements. The base couples to corresponding mounting portions of a chassis of a host device of barcode printer. The printing assembly, the carbon ribbon reel, and the carbon ribbon collection shaft are mounted to a base side. The carbon ribbon reel and the carbon ribbon collection shaft supply and collect a carbon ribbon for the printing assembly. The power transmission device and the transmission elements are mounted to an opposite side of the base supply power to the carbon ribbon collection shaft and the printing assembly for rotating a carbon ribbon and a printing label. The printing engine module is receivable and coupleable in the host device of barcode printer.

Abstract: A label sheet positioning device is provided for a barcode printer, including a pressure regulation seat having two pressure adjusting knobs and at least one universal adjusting knob mounted to a top thereof. The pressure adjusting knobs serve to adjust pressure for positioning in the upward-downward direction of a label sheet of the barcode printer. The universal adjusting knob functions to realize fine adjustment of pressure for positioning in a universal adjustable manner that the pressure regulation seat applies to the label sheet. At least one universal adjusting mechanism is coupled to bottom of the pressure regulation seat for effecting adjustment of inclination direction by the universal adjustment realized by the universal adjusting knob.

Abstract: A label tensioning board is provided for a label printer, including a body, at least one shaft, a resilient element, and at least one slide. The body forms a slot for rotatably accommodating the shaft. The resilient element is coupled to a proximal end of the shaft and the proximal end of the shaft is fixed to an enclosure of the label printer to allow for resilient rotation and returning of the body for adjustment of tension. The body forms at least one rail and a stop. The slide slidably engages the rail for sliding movement along the rail. The slide forms a positioning projection for setting a space between the slide and the stop that accommodate and guides the conveyance of a sheet of label paper. As such, a tensioning board featuring both adjustment of label tension and positioning of the label is provided.

Abstract: A label roll positioning device is provided for a barcode printer and includes at least one slide rail, at least one positioning rail, and at least one pair of roll retainers. The slide rail and the positioning rail are arranged in a parallel manner inside a housing of the barcode printer. The positioning rail forms teeth on a surface thereof. At least one of the roll retainers has a bottom forming a mounting portion that is slidably fit and mounted to the slide rail for being slidable along the slide rail. The roll retainers are spaced to receive a roll of label therebetween in a securely held manner. The roll retainer is provided therein at least one positioning plug having an end forming a locking section. The positioning plug can be downward driven to have the locking section downward projecting out of the roll retainer, and the positioning plug can be upward driven to have the locking section back into concealment inside the roll retainer.

Abstract: A barcode label retention device is provided for a barcode printer. The barcode label retention device includes s at least one pair of label roll retainers, at least one pair of resilient elements, and at least one pair of fixing plates. The label roll retainers are mounted inside a housing of a barcode printer and spaced from each other to receive and retain a label roll therebetween. The resilient elements are arranged inside each label roll retainer, and the fixing plates are arranged inside each label roll retainer. The fixing plate is connected to the resilient element to provide the fixing plate with resiliency for inward depressibility or outward biasing so that a front portion of the fixing plate projects inwards beyond the label roll retainer to abut against opposite ends of the label roll, whereby the label roll can be securely held by the two fixing plates engaging the opposite ends thereof and the path of a winding/unwinding operation can be stabilized.

Abstract: A carbon ribbon retaining mechanism includes a barcode-printer base, an upper cover, a printing head device, and at least one pair of resilient fastener elements. The barcode-printer base has an upper portion forming a receiving space. The upper cover is coupled to the receiving space of the barcode-printer base for being downward closed to and covering the receiving space. At least one pawl is respectively formed on opposite edge portions of the upper cover. The printing head device is accommodated in the receiving space. A carbon ribbon retention shaft is arranged above the printing head device. The resilient fastener elements are mounted above the printing head device. By means of the engagement effected between the pawls of the upper cover and the resilient fastener elements, the upper cover is fixed to and above the printing head device to cover the receiving space.