WO2013177931A1 - 打印机 - Google Patents

打印机 Download PDF

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Publication number
WO2013177931A1
WO2013177931A1 PCT/CN2012/087830 CN2012087830W WO2013177931A1 WO 2013177931 A1 WO2013177931 A1 WO 2013177931A1 CN 2012087830 W CN2012087830 W CN 2012087830W WO 2013177931 A1 WO2013177931 A1 WO 2013177931A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
printer according
paper
gear
paper feed
Prior art date
Application number
PCT/CN2012/087830
Other languages
English (en)
French (fr)
Inventor
许渊智
Original Assignee
广州市宝比塑料制品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州市宝比塑料制品有限公司 filed Critical 广州市宝比塑料制品有限公司
Publication of WO2013177931A1 publication Critical patent/WO2013177931A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B41J15/042—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles for loading rolled-up continuous copy material into printers, e.g. for replacing a used-up paper roll; Point-of-sale printers with openable casings allowing access to the rolled-up continuous copy material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/02—Framework
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/12—Guards, shields or dust excluders
    • B41J29/13—Cases or covers

Definitions

  • the invention relates to a printer.
  • the existing method is to lift the printer's print head, load the printer into the printer, and then put the print head down for printing.
  • Adding or replacing the printer's printing paper is a step that is often used. It is easy to damage the inside of the printer, especially for damage to the print head, circuit board, sensor components, etc. Causes damage to the paper.
  • the operation control unit is provided outside the printer, and during the printing process, it is extremely easy to cause an erroneous operation due to the touch of the operation control unit.
  • the present invention overcomes the deficiencies of the prior art and provides a printer.
  • the present invention is more convenient to operate, and is less likely to cause damage to a printer or a printer, and is more reliable in printing.
  • a printer comprises a casing, a paper roll placement cavity, a fixing frame and a control circuit are arranged in the casing, a printing head is arranged on the fixing frame, and a paper discharge port corresponding to the printing head is arranged on the casing, and the paper roll is provided.
  • a reel is arranged in the chamber, an operation control portion is arranged on the fixing frame, an operation window is opened on one side of the housing, and a cover plate is arranged on the housing, the cover plate is adapted to operate the window, and the cover plate is After the upper operation window is opened, the cover plate is opposed to the shaft end of the reel, and the cover plate covers the operation control portion.
  • the housing has a spherical or circular arc shape, and the bottom portion thereof is a flat surface, and the center of the spherical or circular arc is higher than the plane of the bottom.
  • the left side, the top side, and the right side of the casing form a continuous arc surface, and the cover plate on the front side of the casing is also a flat surface.
  • a lower portion of the cover is hingedly coupled to a bottom of the housing.
  • a top piece is disposed on an upper portion of the front side of the casing, and a corresponding buckle is disposed between the top piece and the cover plate, and a concave portion is disposed on the top piece of the hand.
  • a display screen is also provided on the housing, the display screen being electrically connected to the control circuit.
  • a paper feeding table and an adjusting mechanism are disposed on the fixing frame, the operation control portion includes the adjusting mechanism, and the first sliding slot and the second sliding slot are parallel to each other, and the first sliding slot is The first limiting piece and the second limiting piece are respectively disposed at the second sliding slot. The first limiting piece and the second limiting piece can respectively be in the first sliding slot and the second sliding slot under the action of the adjusting mechanism. Move inside.
  • Each of the first limiting piece and the second limiting piece includes a connecting end portion and an inner side piece connected to the connecting end portion, and the inner side piece of the first limiting piece is opposite to the inner side piece of the second limiting piece.
  • the adjusting mechanism includes an adjusting wheel, a wheel, a first rack and a second rack.
  • the first rack and the second rack are respectively connected to the first limiting piece and the second limiting piece, and the adjusting wheel is The wheel is engaged, and the wheel is meshed with the first rack and the second rack at the same time.
  • the adjusting wheel includes a first gear and a second gear that are stacked and fixed, the wheel includes a stacked third gear and a fourth gear, the first gear is exposed, and the second gear is meshed with the third gear, The four gears mesh with the first rack and the second rack at the same time; the number of teeth of the first gear is greater than the number of teeth of the second gear, and the number of teeth of the third gear is greater than the number of teeth of the fourth gear.
  • the first rack and the second rack are respectively located on opposite sides of the fourth gear.
  • the spool has a regular polygonal cylindrical shape with a plurality of side surfaces, each side surface transition being an arcuate contact surface.
  • a flap is provided at a side surface of the reel at an outer end position of the reel, and a radially protruding guide bar is provided on the side surface.
  • Two holes are formed on the side surface, and a spring piece is formed between the two holes, and the block is disposed at an end of the elastic piece.
  • the reel has a square cross section, and the shrapnel is disposed on opposite sides of the reel.
  • the utility model further comprises a shaft table mounted on the inner wall of the casing, the reel being mounted on the outer end surface of the pillow block, wherein the printing plate is provided with a printing paper sensing component mounting position, and the front end surface of the pivoting table is further provided with The sensing hole is oriented toward the paper roll placement cavity.
  • the pillow block has a truncated cone shape.
  • a paper feed roller is disposed on each of the upper and lower portions of the paper feed table, and further includes a conductive brush facing the paper feed table, and the conductive brush is electrically connected to the external conductive body.
  • the paper feed roller includes a first roller, a second roller and a third roller, the first roller is disposed in pairs with the printhead, the second roller and the third roller are disposed in pairs, and the paper feed table is formed in the first Between the roller and the printhead, between the second roller and the third roller.
  • the conductive brushes are at least two, and are disposed on the paper feeding table, and are electrically connected to the external electrical conductor.
  • the conductive brushes are two, respectively a first conductive brush and a second conductive brush, the first conductive brush is closer to the reel than the third roller, and the second conductive brush is closer to the print head than the print head Said housing.
  • the bristles of the conductive brush are arranged in a row, and the arrangement direction thereof is perpendicular to the paper feed table.
  • the fixing frame and the housing are both made of metal, and the fixing frame is connected to the housing to form the external electrical conductor.
  • a clip box is provided on the housing.
  • a top slot is disposed in an upper portion of the housing, and the clip box is mounted in the top slot.
  • a circuit board and a mounting frame are disposed in the housing, the control circuit is mounted on the circuit board, the circuit board is disposed on the mounting frame, the mounting frame is fixed in the housing, and the heat dissipation hole is disposed on the housing Facing the board.
  • the mounting bracket is made of metal.
  • the mounting bracket includes a main frame and a side plate, and the side plate is connected to the main frame, and the circuit board is mounted on the side plate.
  • a drive motor is disposed on the mounting bracket of the mounting bracket.
  • the housing includes a bottom plate, and a heat dissipation hole is also disposed on the bottom plate, and the heat dissipation hole is adjacent to the driving motor.
  • the first roller, the second roller, the third roller and the outer cover are further included.
  • the first roller is disposed opposite to the printhead at a front portion of the paper feed table, and the second roller and the third roller are opposite to the paper feed roller.
  • the outer cover covers the print head, the first roller, the second roller, and the third roller.
  • a driving motor is further disposed on the fixing frame, the operation control portion includes a paper feeding operation portion, the paper feeding operation portion and the driving motor are electrically connected to the control circuit, and the paper feeding operation portion is exposed on the outer cover
  • the drive motor is coupled to the first roller, the second roller, or the third roller and drives the first roller, the second roller, and the third roller.
  • the paper feed operation portion includes a paper feed button and an paper feed button, and the paper feed button is closer to the print head than the paper feed button.
  • the upper sensing head and the lower sensing head are opposite to each other, and the upper sensing head and the lower sensing head are respectively located above and below the paper feeding table.
  • a driving motor, a transmission gear, a first synchronizing gear, a second synchronizing gear, a first roller and a second roller are disposed on the fixing frame, and the driving motor has an output shaft, the output shaft is provided with an output gear, and the output gear is
  • the transmission gear includes a first reduction gear set, a second reduction gear set and a synchronous wheel.
  • the first reduction gear set and the second reduction gear set respectively include an active tooth and a driven tooth.
  • the number of teeth of the active tooth is more than that of the driven tooth.
  • the number of teeth, the output gear meshes with the active teeth of the first reduction gear set, the driven teeth of the first reduction gear set mesh with the active teeth of the second reduction gear set, and the driven teeth of the second reduction gear set mesh with the overwheel.
  • the axis of the first synchronizing gear and the second synchronizing gear is connected to a horizontal level.
  • a paper feed roller is respectively disposed at an upper portion and a lower portion of the paper feed table, and at least two spacers are disposed on the paper feed table, and a groove is formed between the two spacers, and the paper feed roller and the upper paper feed roller are disposed at the upper portion of the paper feed table.
  • the paper feed roller at the lower part of the paper table is in contact with the groove at the groove.
  • the paper feeding table comprises a first platform and a second platform.
  • the first platform is provided with a positioning defect.
  • the spacer is arranged on the second platform, and the spacer extends into the opposite position.
  • the paper feed roller includes a first roller, a second roller and a third roller, the first roller is disposed in pairs with the printhead, the second roller and the third roller are disposed in pairs, and the first roller and the second roller are located
  • the upper part of the paper feeding table, the third roller is disposed at a lower portion of the paper feeding table, and the second roller and the third roller are provided with at least two journals, wherein the spacer is located in the journal, the first The roller is cylindrical.
  • a printing paper sensing element is disposed in the housing, the printing paper sensing element is disposed toward the paper roll placement cavity, and the printing paper sensing element is electrically connected to the control circuit.
  • An observation window is provided on the housing, the viewing window being placed toward the paper roll placement cavity.
  • the "printing paper” described in the present application is not limited to the conventional paper or paper strip, and includes other sheet-like articles that can be used for printing, such as a plastic wristband, a plastic wristband, a paper wristband, and a thermal wristband. and many more.
  • a paper roll placement cavity is arranged in the housing, and the print head is separately disposed on the fixed frame.
  • the cover plate is opened to expose the operation window, and then the printing paper is placed on the reel;
  • the operation control is performed by the operation control unit to adjust the printing paper to the optimal state, and then the cover is covered for printing to avoid accidentally touching the operation control portion during printing; the structure is installed or replaced. Paper is more convenient, reduces damage to paper and printers, and is more reliable when printed.
  • the center of the spherical or circular arc is higher than the plane of the bottom of the housing, so that the footprint of the printer is small; the housing is spherical or arc-shaped, which can ensure more space inside the printer to facilitate the installation of printing paper. And its appearance is beautiful.
  • the lower portion of the cover is hingedly connected to the bottom of the housing, and when the cover is opened, collision and interference between the cover and other objects on the side of the printer are reduced.
  • the display screen on the printer's casing, the printing status of the printer, etc. can be transmitted from the control circuit to the display screen and displayed externally through the display screen, which is more convenient to use.
  • the first sliding slot and the second sliding slot are disposed on the paper feeding table, and the first limiting piece and the second limiting piece can respectively slide in the first sliding slot and the second sliding slot, and the first limiting piece is The distance between the second limiting piece and the second limiting piece is adjusted so that the width between the first limiting piece and the second limiting piece is adapted to the width of the strip.
  • the adjusting wheel is turned and the wheel is rotated. Since the first rack and the second rack are engaged with the wheel, the moving distances of the first limiting piece and the second limiting piece are equal. That is, the first limit piece and the second limit piece are all moved closer to the middle or moved away from the same distance, and the centering effect is good.
  • the number of teeth of the first gear is greater than the number of teeth of the second gear, the number of teeth of the third gear is greater than the number of teeth of the fourth gear, and has a deceleration function during adjustment, and the distance between the first limit piece and the second limit piece can be achieved by adjusting the teeth. Fine-tuning.
  • the first limiting piece and the second limiting piece respectively comprise a connecting end portion and an inner side piece, wherein the height of the inner side piece is very close to the thickness of the printing paper, so that the fixed printing paper is not biased during the printing process. Move to further ensure the effect of printing.
  • the reel does not adopt a cylindrical structure, but adopts a cylindrical structure of a positive polygon, the reel and the paper roll are in contact with each other through the corner position, the contact surface is very small, and the contact surface is curved, and the contact surface is smoother; By positioning the corners of the multi-faceted cylindrical shape and the paper roll, the sloshing of the paper roll is reduced, and the paper roll is kept fixed during the paper feeding process, and the printing effect is better.
  • a baffle is arranged on a side surface of the reel, and the paper roll is axially restrained by the baffle to avoid swaying from the reel in the axial direction, and the reel is a polygonal cylindrical structure.
  • the baffle is disposed on the side surface to make the whole structure compact; the side surface is provided with a radially protruding guide bar, which can further axially limit the paper roll in the center to realize the paper roll during the paper feeding process. It can scroll forward arbitrarily and shakes small.
  • the baffle is disposed at the end of the shrapnel. When the shrapnel is pressed, the baffle is radially inwardly contracted to ensure that the roll can be loaded into the reel at any time and at any time, and the shrapnel can be used to limit the paper roll.
  • the paper sensing component can be installed inside to sense the use of the printing paper. If the number of printing paper is not enough, the user can be prompted to use it more conveniently, and the pedestal can be used. Reinforces the reel to reduce skew and distortion of the reel.
  • a conductive brush is arranged near the paper feeding table, the paper will pass through the paper feeding table during printing. At this time, the conductive brush will contact the surface of the paper and electrostatically adsorb the surface of the paper to prevent static electricity from affecting the surface of the paper. To print results, reduce security risks.
  • the conductive brushes are at least two, which can more completely eliminate static electricity, and the effect is more ideal.
  • the first conductive brush is closer to the reel than the third roller, and the second conductive brush is closer to the housing than the printhead, and the first conductive brush can eliminate static electricity generated by the friction of the paper.
  • the two conductive brushes can eliminate the static electricity generated by the friction between the paper feed roller and the paper and the static electricity generated by printing the heat of the hair.
  • the fixing frame and the casing are all made of metal, and the conductive brush is electrically connected to the fixing frame, and the static electricity generated by the conductive brush is transmitted to the fixing frame and guided away by the fixing frame.
  • the clip box is set on the printer, which reduces the cost, and the clip box is not overturned during use, which is more convenient to use.
  • the heat dissipation hole is arranged on the housing, and the heat dissipation hole faces the circuit board, and the heat emitted by the circuit board can be dissipated outward through the heat dissipation hole, thereby improving the heat dissipation effect of the printer and improving the service life and printing effect of the printer.
  • the mounting frame is made of metal material, and the heat of the heat dissipation of the circuit board can also be transmitted to the mounting frame of the metal material, and is radiated outward through the mounting frame and the metal casing, thereby further improving the heat dissipation effect of the printer.
  • a heat dissipation hole is also provided at the bottom plate of the housing to improve the heat dissipation effect at the drive motor.
  • paper feed rollers There are three paper feed rollers, the first roller is opposite to the printhead, and the second roller is opposite to the third roller. According to the needs of the user, paper feeding and paper ejection can be conveniently realized, and the use is more convenient.
  • the outer cover covers the print head, the first roller, the second roller and the third roller.
  • the printer can easily realize the advance and retreat paper, in the printing process, you can operate the paper at any time to make the paper contact with the print head, generate friction, and automatically remove the dust from the print head through the printing paper, thus achieving printing
  • the automatic cleaning function of the head further improves the quality of the printing and achieves an unexpected cleaning effect.
  • the key is closer to the print head relative to the eject button, presses the paper feed closer to the side of the print head, and the printing paper moves toward the side of the print head, pressing the eject button away from the side of the print head, and the printing paper is away from printing. Moving on one side of the head makes the operation more intuitive.
  • the paper can be positioned, and the paper feed amount or paper ejection amount can be sensed to achieve precise control.
  • the driving motor drives the first synchronizing gear and the second synchronizing gear to rotate through the output gear and the transmission gear, and the rotation speeds of the first synchronizing gear and the second synchronizing gear are equal, so that the first roller and the second roller rotate synchronously.
  • the printing paper is driven by the first roller and the second roller, the movement thereof is more reliable, and the paper feeding and the paper ejection can be conveniently realized, and the printing paper is not easily skewed and jammed.
  • the transmission gear includes a first reduction gear set, a second reduction gear set and a synchronous wheel.
  • the first reduction gear and the second reduction gear can realize deceleration, so that the printer feeds and ejects paper more smoothly.
  • the axial connection level of the first synchronous gear and the second synchronous gear can ensure that the printing paper is in a substantially horizontal state.
  • spacers are arranged on the paper feeding table, slots are formed between the spacers, and the two paper feed rollers at the upper and lower portions of the paper feeding table are in contact with the groove and drive the paper to advance, and the spacer can prevent printing.
  • the paper is rolled down and snapped into the printer; the waste of the printing paper and the damage of the printer are reduced.
  • the paper table is made up of the first platform and the second platform, which is more convenient for processing and installation.
  • a plurality of journals are provided on the lower paper feed roller, and the journal can give way to the spacer.
  • the roll paper is set on the reel.
  • the paper sensing element senses the state of the printing paper. If the printing paper is too small, the printing paper sensing element will The control circuit sends a prompt signal and prompts outward, which is more convenient to use.
  • An observation window is arranged on the casing to facilitate direct observation by the naked eye.
  • FIG. 1 is a structural view of a printer cover according to an embodiment of the present invention
  • 2 is a structural diagram of the printer after the embodiment of the present invention is opened
  • Figure 3 is a partial disassembly view of Figure 2
  • Figure 4 is a partial enlarged view of the paper feed table of Figure 3
  • Figure 5 is a partial enlarged view of the second roller, the third roller and the first conductive brush of Figure 3
  • Figure 6 is a partial enlarged view of the reel at the end of Figure 3
  • Figure 7 is a rear side structural view of the printer according to the embodiment of the present invention
  • Figure 8 is a rear side view of the printer according to the embodiment of the present invention
  • Figure 9 is a disassembled view of the paper feed table
  • Figure 10 is a bottom view of the paper feed table
  • Figure 11 is a transmission structural view of the back side of the fixing frame; Description of the reference signs: 1, housing, 2, paper roll placement cavity, 3, fixed frame, 4, print head, 5, paper exit, 6, reel, 7, operation control,
  • a printer includes a housing 1 , a paper roll placement cavity 2 , a fixing frame 3 and a control circuit are disposed in the housing 1 , and the printing frame 4 is disposed on the fixing frame 3 .
  • the body 1 is provided with a paper exit 5 corresponding to the print head 4, a reel 6 is disposed in the roll placement chamber 2, and an operation control unit 7 is disposed on the fixed frame 3, and an operation opening is provided on the side of the casing 1.
  • a window is provided on the casing 1 with a cover plate 8 adapted to operate the opening window. After the cover plate 8 is covered and operated to open the window, the cover plate 8 is opposite to the axial end of the reel 6, and the cover plate 8 The operation control unit 7 is covered.
  • the housing 1 has a spherical shape or a circular arc shape, and the bottom portion thereof is a flat surface, and the center of the spherical or circular arc is higher than the plane of the bottom portion.
  • the left side, the top side, and the right side of the casing 1 form a continuous circular arc surface 10, and the front cover 8 of the casing 1 is also a flat surface.
  • the lower portion of the cover plate 8 is hingedly connected to the bottom of the housing 1.
  • a top sheet 11 is disposed on an upper portion of the front side of the casing 1.
  • a corresponding snap buckle 12 is disposed between the handle top sheet 11 and the cover panel 8, and a recess 13 is provided on the handle top sheet 11.
  • a display screen 14 is also provided on the housing 1 and is electrically connected to the control circuit.
  • a paper feeding table 15 and an adjusting mechanism 16 are disposed on the fixing frame 3, and the operation control unit 7 includes the adjusting mechanism 16.
  • the paper feeding table 15 is provided with a first sliding slot 17 and a second sliding slot which are parallel to each other. 46.
  • the first limiting piece 18 and the second limiting piece 19 are respectively disposed at the first sliding slot 17 and the second sliding slot 46. Under the action of the adjusting mechanism 16, the first limiting piece 18 and the second limiting piece are respectively The position piece 19 is movable in the first chute 17 and the second chute 46, respectively.
  • the first limiting piece 18 and the second limiting piece 19 each include a connecting end portion and an inner side piece connected to the connecting end portion, and the inner side piece of the first limiting piece 18 and the inner side of the second limiting piece 19
  • the film is relative.
  • the adjusting mechanism 16 includes an adjusting wheel 48, a wheel, a first rack 50 and a second rack 51.
  • the first rack 50 and the second rack 51 are respectively associated with the first limiting piece 18 and the second limit.
  • the bit slices 19 are connected.
  • the adjusting wheel 48 includes a first gear 54 and a second gear 55 that are stacked and fixed.
  • the wheel includes a stacked third gear 56 and a fourth gear 57.
  • the first gear 54 is exposed, and the second gear 55 is Engaging with the third gear 56, the fourth gear 57 meshes with the first rack 50 and the second rack 51 at the same time; the number of teeth of the first gear 54 is greater than the number of teeth of the second gear 55, and the number of teeth of the third gear 56 is greater than the fourth gear The number of teeth of 57.
  • the first rack 50 and the second rack 51 are respectively located on opposite sides of the fourth gear 57.
  • the reel 6 has a regular polygonal cylindrical shape with a plurality of side surfaces 20, each of which has an arcuate contact surface 21 at the transition.
  • a flap 22 is provided at a side end surface 20 of the spool 6 at an outer end position of the spool 6, and a radially projecting guide bar 23 is provided on the side surface 20.
  • Two strip holes are formed in the side surface 20, and a spring piece 24 is formed between the two strip holes, and the flap 22 is disposed at an end of the elastic piece 24.
  • the reel 6 has a square cross section, and the elastic pieces 24 are provided on opposite sides of the reel 6.
  • a pivoting table 25 mounted on the inner wall of the housing 1, the reel 6 being mounted on the outer end surface of the pillow block 25, and a mounting position of the printing paper sensing component is disposed in the pivoting table 25, on the pivoting table
  • the front end face of 25 is further provided with a sensing hole 26 facing the paper roll placement chamber 2, which is in the shape of a truncated cone.
  • a conductive brush is further disposed, the conductive brush faces the paper feed table 15, and the conductive brush is electrically connected to the external conductive body.
  • the paper feed roller includes a first roller 28, a second roller 29, and a third roller 30.
  • the first roller 28 and the second roller 29 are disposed at a lower portion of the paper feeding table, and the third roller 30 is disposed at an upper portion of the paper feeding table.
  • the first roller 28 is disposed in pairs with the print head 4, the second roller 29 is disposed in pairs with the third roller 30, and the paper feed table 15 is formed between the first roller 28 and the printhead 4, and the second roller 29 Between the third roller 30 and the third roller 30.
  • the conductive brushes are two, respectively a first conductive brush 31 and a second conductive brush 32.
  • the first conductive brush 31 is closer to the reel 6 than the third roller 30, and the second conductive brush 32 is opposite to the
  • the printhead 4 is closer to the housing 1.
  • the bristles of the conductive brush are arranged in a row, and the arrangement direction thereof is perpendicular to the paper feed table 15.
  • the fixing frame 3 and the housing 1 are made of a metal material, and the external electrical conductor is the fixing frame 3.
  • a clip box 34 is provided on the housing 1.
  • a top slot is provided in an upper portion of the housing 1, and the clip box 34 is mounted in the top slot.
  • a circuit board 38 and a mounting bracket are disposed in the housing 1.
  • the control circuit is mounted on the circuit board 38.
  • the circuit board 38 is disposed on the mounting bracket, and the mounting bracket is fixed in the housing 1 on the housing 1.
  • a heat dissipation hole 37 is provided, which faces the circuit board 38.
  • the mounting bracket is made of metal.
  • the mounting bracket includes a main frame 39 and a side plate 40.
  • the side plate 40 is connected to the main frame 39, and the circuit board 38 is mounted on the side plate 40.
  • a drive motor 49 is provided on the mounting bracket of the holder 3.
  • the housing 1 includes a bottom plate 9 on which a heat dissipation hole 37 is also provided, which is adjacent to the drive motor 49.
  • the operation control unit 7 includes a paper feed operation unit, and the paper feed operation unit and the drive motor 49 are electrically connected to the control circuit, and the paper feed operation unit is exposed to the outer cover, and the drive motor 49 and the first roller 28.
  • the second roller 29 or the third roller 30 connects and drives the first roller 28, the second roller 29, and the third roller 30.
  • the paper feed operation portion includes a paper feed button 35 and an eject button 36, and the paper feed button 35 is closer to the print head 4 with respect to the eject button 36.
  • the upper sensing head 52 and the lower sensing head 53 are opposite to each other, and the upper sensing head 52 and the lower sensing head 53 are respectively located above and below the paper feeding table 15.
  • a transmission gear, a first synchronizing gear 59, and a second synchronizing gear 60 are disposed on the fixed frame 3.
  • the driving motor 49 has an output shaft, and the output shaft is provided with an output gear 58.
  • the output gear 58 meshes with the transmission gear.
  • the transmission gear meshes with the first synchronizing gear 59 and the second synchronizing gear 60 at the same time.
  • the first synchronizing gear 59 and the second synchronizing gear 60 have the same number of teeth.
  • the first roller 28 and the second roller 29 are respectively coupled to the first synchronizing gear 59.
  • the second synchronizing gear 60 is connected.
  • the transmission gear includes a first reduction gear set 61, a second reduction gear set 62 and a synchronous wheel 27.
  • the first reduction gear set 61 and the second reduction gear set 62 each include an active tooth and a driven tooth, and the number of teeth of the active tooth is large.
  • the output gear 58 meshes with the active teeth of the first reduction gear set 61, the driven teeth of the first reduction gear set 61 mesh with the active teeth of the second reduction gear set 62, and the second reduction gear set 62
  • the driven teeth mesh with the overtravel.
  • the axis of the first synchronizing gear 59 and the second synchronizing gear 60 is horizontally connected.
  • a paper feed roller is respectively disposed at an upper portion and a lower portion of the paper feed table 15, and at least two spacers 45 are disposed on the paper feed table 15, and a groove 41 is formed between the two spacers 45, and an upper portion of the paper feed table 15 is formed.
  • the paper feed roller and the paper feed roller at the lower portion of the paper feed table 15 are in contact with each other at the slot 41.
  • the paper feed table 15 includes a first platform 42 and a second platform 43.
  • the first platform 42 is provided with an alignment defect 44.
  • the spacer 45 is disposed on the second platform 43 and the spacer 45 extends into the alignment position. Missing 44.
  • the first roller 28 and the second roller 29 are located at an upper portion of the paper feed table 15, the third roller 30 is disposed at a lower portion of the paper feed table 15, and the second roller 29 and the third roller 30 are provided with at least two
  • the journal 47, the spacer 45 is located in the journal 47, and the first roller 28 has a cylindrical shape.
  • a printing paper sensing element is disposed in the housing 1, the printing paper sensing element is oriented toward the paper roll placement chamber 2, and the printing paper sensing element is electrically connected to the control circuit.
  • An observation window 33 is provided on the casing 1, and the observation window 33 is placed toward the paper roll chamber 2.
  • a paper roll placement cavity 2 is disposed in the housing 1.
  • the print head 4 is separately disposed on the fixed frame 3.
  • the cover 8 is opened to expose the operation window, and then the printing is performed.
  • the paper is sleeved on the reel 6; after the printing paper is installed, the operation control unit 7 performs operation control to adjust the printing paper to an optimal state, and then covers the cover 8 for printing to avoid accidental operation control during printing. Part 7; This structure is more convenient to install or replace the printing paper, which reduces damage to the printing paper and the printer, and is more reliable in printing.
  • the center of the spherical or circular arc is higher than the plane of the bottom of the housing 1, so that the footprint of the printer is small; the housing 1 is spherical or arc-shaped, which can ensure more space inside the printer for easy installation and printing. Paper, and its appearance is beautiful.
  • the lower portion of the cover plate 8 is hingedly connected to the bottom of the casing 1, and when the cover plate 8 is opened, collision and interference between the cover plate 8 and other objects on the side of the printer are reduced.
  • a top piece 11 is provided on the upper part of the front side of the casing 1, and a recess 13 is provided on the top piece 11 of the hand.
  • the finger can be pressed against the recess 13 of the top piece 11, gently
  • the cover 8 can be opened with a button.
  • a display screen 14 is provided on the casing 1 of the printer, and printing information such as the printing status of the printer can be transmitted to the display screen 14 by the control circuit and displayed outward through the display screen 14, which is more convenient to use.
  • the first sliding slot 17 and the second sliding slot 46 are disposed on the paper feeding table 15, and the first limiting piece 18 and the second limiting piece 19 are respectively slidable in the first sliding slot 17 and the second sliding slot 46.
  • the distance between the first limiting piece 18 and the second limiting piece 19 is adjusted so that the width between the first limiting piece 18 and the second limiting piece 19 is adapted to the width of the strip.
  • the adjusting wheel 48 is toggled and the wheel is rotated. Since the first rack 50 and the second rack 51 are engaged with the wheel, the first limiting piece 18 and the second limiting piece 19 are caused. The moving distances are equal, that is, the first limiting piece 18 and the second limiting piece 19 are all moved closer to or away from the middle by the same distance, and the centering effect is good.
  • the number of teeth of the first gear 54 is greater than the number of teeth of the second gear 55.
  • the number of teeth of the third gear 56 is greater than the number of teeth of the fourth gear 57.
  • the first limiting piece 18 and the second limiting piece 19 each include a connecting end portion and an inner side piece.
  • the height of the inner side piece is very close to the thickness of the printing paper, so that the fixed printing paper is not realized during the printing process. An offset is generated to further ensure the effect of printing.
  • the reel 6 Since the reel 6 does not adopt a cylindrical structure but adopts a cylindrical structure of a positive polygon, the reel 6 is in contact with the paper roll through a corner position, the contact surface 21 is very small, and the contact surface 21 is curved, in contact The surface 21 is smoother; the positioning of the positive multi-faceted cylindrical portion and the paper roll reduces the sloshing of the paper roll, keeps the paper roll fixed during the paper feeding process, and the printing effect is better.
  • the side surface 20 of the reel 6 is provided with a flap 22, and the flap 22 is axially restrained by the flap 22, so as to avoid swaying from the reel 6 in the axial direction, since the reel 6 is
  • the polygonal cylindrical structure can be disposed on the side surface 20 to make the whole structure compact; the side surface 20 is provided with a radially protruding guide bar 23, which can further axially limit the paper roll to positive Center, the paper roll can be rolled forward arbitrarily during the paper feeding process, and the shaking is small.
  • the blocking piece 22 is disposed at the end of the elastic piece 24. When the elastic piece 24 is pressed, the blocking piece 22 is radially inwardly contracted, so that the paper roll can be easily loaded into the reel 6 at any time and at any time, and the elastic piece 24 can be bounced to transfer the paper. Volume limit.
  • the paper sensing component can be installed inside to sense the use of the printing paper. If the number of printing paper is insufficient, the user can be prompted to use it more conveniently, and the pedestal is more convenient.
  • the reel 6 can be reinforced to reduce the skew and deformation of the reel 6.
  • a conductive brush is arranged near the paper feed table 15, the paper will pass through the paper feed table 15 during printing. At this time, the conductive brush will contact the surface of the paper and electrostatically adsorb the surface of the paper to avoid static electricity on the paper surface. It affects the printing effect and reduces security risks.
  • the conductive brushes are two, which can more completely eliminate static electricity, and the effect is more ideal.
  • the first conductive brush 31 is closer to the reel 6 with respect to the third roller 30, and the second conductive brush 32 is closer to the housing 1 with respect to the print head 4, and the first conductive brush 31 can eliminate the paper.
  • the static electricity generated by the friction, the second conductive brush 32 can eliminate the static electricity generated by the friction between the paper feed roller and the paper, and the static electricity generated by the heat generated by the print head 4.
  • the fixing frame 3 and the housing 1 are made of metal material, and the conductive brush is electrically connected to the fixing frame 3, and the static electricity generated by the conductive brush is transmitted to the fixing frame 3 and guided away by the fixing frame 3.
  • the desktop space is not required to be occupied, and the desktop can be made more clean.
  • the clip box 34 is disposed on the printer, which reduces the cost, and does not overturn the clip box 34 during use, which is more convenient to use.
  • the housing 1 is provided with a heat dissipation hole 37, the heat dissipation hole 37 faces the circuit board 38, the heat radiated by the circuit board 38 can be dissipated outward through the heat dissipation hole 37, thereby improving the heat dissipation effect of the printer and improving the printer's Service life and printing results.
  • the mounting frame is a metal fixing frame, and the heat dissipated by the circuit board 38 can also be transmitted to the metal material mounting frame, and is radiated outward through the mounting frame, thereby further improving the heat dissipation effect of the printer.
  • a heat dissipation hole 37 is also provided at the bottom plate 9 of the housing 1, which can improve the heat dissipation effect at the drive motor 49.
  • the outer cover covers the print head 4, the first roller 28, the second roller 29, and the third roller 30.
  • the printer can conveniently realize the advance and retreat paper. During the printing process, the paper can be moved forward and backward, the printing paper is in contact with the printing head 4, friction is generated, and the dust of the printing head 4 is automatically taken away by the printing paper, thereby The automatic cleaning function of the print head 4 is realized to further improve the quality of printing and achieve an unexpected cleaning effect.
  • the key 35 is closer to the print head 4 with respect to the eject key 36, presses the paper feed closer to the side of the print head 4, the printing paper moves toward the side of the print head 4, and the ejected paper is pressed away from the side of the print head 4.
  • the key 36 moves the printing paper away from the side of the print head 4, and the operation is more intuitive.
  • the upper sensing head 52 and the lower sensing head 53 can position the printing paper, and can also sense the paper feeding amount or the paper ejection amount of the printing paper, thereby achieving precise control.
  • the driving motor 49 drives the first synchronizing gear 59 and the second synchronizing gear 60 to rotate through the output gear 58 and the transmission gear.
  • the rotation speeds of the first synchronizing gear 59 and the second synchronizing gear 60 are equal, so that the first roller 28, the second roller 29 rotates synchronously, when the printing paper is driven by the first roller 28 and the second roller 29, the movement thereof is more reliable, and the paper feeding and the paper ejection can be conveniently realized, and the printing paper is not easy to skew and jam.
  • the transmission gear includes a first reduction gear set 61, a second reduction gear set 62 and a synchronous wheel 27.
  • the deceleration can be achieved by the first reduction gear and the second reduction gear, so that the printer feeds and ejects paper more smoothly.
  • the axial connection level of the first synchronizing gear 59 and the second synchronizing gear 60 can ensure that the printing paper is in a substantially horizontal state.
  • the spacer 45 is disposed on the paper feeding table 15, the groove 41 is formed between the spacers 45, and the two paper feed rollers of the upper and lower portions of the paper feeding table 15 are in contact with the groove 41 and drive the printing paper forward.
  • the spacer 45 can prevent the printing paper from being rolled down and caught in the printer; the waste of the printing paper and the damage of the printer are reduced.
  • the paper feeding table 15 is formed by docking the first platform 42 and the second platform 43, and is more convenient to process and install.
  • a plurality of journals 47 are provided on the lower paper feed roller, and the journals 47 can give way to the spacers 45.
  • the roll-shaped printing paper is set on the reel 6.
  • the printing paper sensing element located behind the sensing hole 26 senses the state of the printing paper, if the printing paper passes If there is less, the paper sensing element will send a prompt signal to the control circuit and prompt it outward, which is more convenient to use.
  • An observation window 33 is disposed on the casing 1 to facilitate direct observation by the naked eye.

Abstract

一种打印机，包括壳体（1），在壳体（1）内设有纸卷放置腔（2）、固定架（3）及控制电路，固定架（3）上设有打印头（4），在壳体（1）上设有与打印头（4）相对应的出纸口（5），纸卷放置腔（2）内设有卷轴（6），在固定架（3）上设有操作控制部（7），在壳体（1）一侧开设有操作开窗，在壳体（1）上设有盖板（8），该盖板（8）与操作开窗相适应，盖板（8）盖上操作开窗后，该盖板（8）与卷轴（6）的轴端相对，且盖板（8）将操作控制部（7）盖住。本发明操作方便，也不易造成打印机的损伤，打印时可靠性更高。

Description

打印机
技术领域
本发明涉及一种打印机。
背景技术
在打印机使用时，需要对打印机装纸，现有的作法是将打印机的打印头抬起，将打印机装入打印机内部，再将打印头放下进行打印。
对打印机的打印纸进行加装或更换是经常用到的一个步骤，采用该方式，极易对打印机的内部造成损坏，尤其是易对打印头、电路板、传感元件等造成损坏，也容易造成打印纸的损伤。
另外，现有的打印机将操作控制部设于打印机的外面，在打印过程中，极易由于碰触操作控制部而造成误操作。
发明内容
基于此，本发明在于克服现有技术的缺陷，提供一种打印机，本发明操作更方便，也不易造成打印机或打印机的损伤，打印时可靠性更高。
其技术方案如下：
一种打印机，包括壳体，在壳体内设有纸卷放置腔、固定架及控制电路，固定架上设有打印头，在壳体上设有与打印头相对应的出纸口，纸卷放置腔内设有卷轴，在固定架上设有操作控制部，在壳体一侧开设有操作开窗，在壳体上设有盖板，该盖板与操作开窗相适应，盖板盖上操作开窗后，该盖板与卷轴的轴端相对，且盖板将操作控制部盖住。
所述壳体呈圆球形或圆弧形，其底部为平面，前述圆球形或圆弧形的圆心高于底部的平面。
所述壳体的左侧、顶侧、右侧形成连续的圆弧面，所述壳体前侧的盖板也为平面。
所述盖板的下部与所述壳体的底部铰接连接。
在所述壳体前侧的上部设有着手顶片，着手顶片与所述盖板之间设有相应的卡扣，在着手顶片上设有凹部。
在所述壳体上还设有显示屏，该显示屏与所述控制电路电气连接。
在所述固定架上设有走纸台及调整机构，所述操作控制部包括该调整机构，走纸台上设有相互平行的第一滑槽及第二滑槽，在第一滑槽及第二滑槽处分别设有第一限位片、第二限位片，在调整机构的作用下，第一限位片、第二限位片能分别在第一滑槽、第二滑槽内移动。
所述第一限位片、第二限位片均包括有连接端部及与连接端部连接的内侧片，且第一限位片的内侧片与第二限位片的内侧片相对。
所述调整机构包括调整轮、过轮、第一齿条及第二齿条，第一齿条、第二齿条分别与所述第一限位片、第二限位片连接，调整轮与过轮啮合，过轮同时与第一齿条、第二齿条啮合。
所述调整轮包括叠置且固接的第一齿轮及第二齿轮，所述过轮包括叠置的第三齿轮及第四齿轮，第一齿轮外露，第二齿轮与第三齿轮啮合，第四齿轮同时与第一齿条、第二齿条啮合；第一齿轮的齿数大于第二齿轮的齿数，第三齿轮的齿数大于第四齿轮的齿数。
所述第一齿条、第二齿条分别位于所述第四齿轮的两个相反侧。
所述卷轴呈正多边柱形，其具有多个侧表面，各侧表面过渡处为弧形的接触面。
在所述卷轴的侧表面靠卷轴的外端位置设有挡片，且在所述侧表面设有径向凸出的导条。
在所述侧表面设有两个条孔，两个条孔之间形成弹片，所述挡片设于弹片的端部。
所述卷轴的横截面呈正方形，所述弹片设于卷轴相对的两个侧面上。
还包括有轴台，该轴台安装于壳体的内壁，所述卷轴安装于轴台的外端面，在轴台内设有打印纸感测元件安装位，在轴台的前端面还设有感测孔，感测孔朝向纸卷放置腔。
所述轴台呈圆台形。
在所述走纸台的上部、下部分别设有走纸辊，还包括有导电刷，该导电刷朝向所述走纸台，且导电刷与外接导电体电性连接。
所述走纸辊包括第一辊、第二辊及第三辊，第一辊与所述打印头成对设置，第二辊与第三辊成对设置，所述走纸台形成于第一辊与打印头之间、第二辊与第三辊之间。
所述导电刷为至少两个，均设于所述走纸台上，且均与所述外接导电体电性连接。
所述导电刷为两个，分别为第一导电刷及第二导电刷，第一导电刷相对于所述第三辊更靠近所述卷轴，第二导电刷相对于所述打印头更靠近所述壳体。
所述导电刷的刷毛呈排状，其排列方向与所述走纸台垂直。
所述固定架及壳体均为金属材质，所述固定架与壳体相连而形成所述外接导电体。
在所述壳体上设有夹扣盒。
在所述壳体的上部设有顶部槽，所述夹扣盒装于该顶部槽内。
在所述壳体内设有电路板及安装架，所述控制电路安装于电路板上，电路板设于安装架上，安装架固定于壳体内，在壳体上设有散热孔，该散热孔朝向所述电路板。
所述安装架为金属材质。
所述安装架包括主架及侧板，侧板与主架连接，所述电路板安装于侧板上。
在所述固定架的安装架上设有驱动电机。
所述壳体包括底板，在底板上也设有散热孔，该散热孔靠近所述驱动电机。
还包括有第一辊、第二辊、第三辊及外盖，第一辊与打印头相对设置于所述走纸台的前部，第二辊与第三辊相对设置于所述走纸台的后部，外盖将打印头、第一辊、第二辊、第三辊盖住。
在所述固定架上还设有驱动电机，所述操作控制部包括有走纸操作部，走纸操作部、驱动电机均与所述控制电路电气连接，走纸操作部露出于所述外盖，驱动电机与所述第一辊、第二辊或第三辊连接并驱动所述第一辊、第二辊及第三辊。
所述走纸操作部包括进纸键及退纸键，进纸键相对于退纸键更靠近所述打印头。
还包括有上感应头及下感应头，上感应头、下感应头相对，且上感应头、下感应头分别位于所述走纸台的上方、下方。
在所述固定架上设有驱动电机、传动齿轮、第一同步齿轮、第二同步齿轮、第一辊及第二辊，驱动电机具有输出轴，该输出轴上设有输出齿轮，输出齿轮与传动齿轮啮合，传动齿轮同时与第一同步齿轮、第二同步齿轮啮合，第一同步齿轮、第二同步齿轮的齿数相等，第一辊、第二辊分别与所述第一同步齿轮、第二同步齿轮连接。
所述传动齿轮包括第一减速齿轮组、第二减速齿轮组及同步轮，第一减速齿轮组、第二减速齿轮组均包括主动齿及从动齿，主动齿的齿数多于从动齿的齿数，输出齿轮与第一减速齿轮组的主动齿啮合，第一减速齿轮组的从动齿与第二减速齿轮组的主动齿啮合，第二减速齿轮组的从动齿与过轮啮合。
所述第一同步齿轮、第二同步齿轮的轴心连线水平。
在所述走纸台的上部、下部分别设有走纸辊，在走纸台上设有至少两个隔片，两个隔片之间形成开槽，走纸台上部的走纸辊与走纸台下部的走纸辊在开槽处接触配合。
所述走纸台包括第一平台及第二平台，在第一平台上设有对位缺，所述隔片设于第二平台上，隔片伸入对位缺内。
所述走纸辊包括第一辊、第二辊及第三辊，第一辊与所述打印头成对设置，第二辊与第三辊成对设置，且第一辊、第二辊位于所述走纸台的上部，第三辊设于所述走纸台的下部，第二辊、第三辊上设有至少两个轴颈，所述隔片位于轴颈内，所述第一辊呈圆柱状。
在壳体内设有打印纸传感元件，打印纸传感元件朝向纸卷放置腔，且打印纸传感元件与所述控制电路电性连接。
在所述壳体上设有观察视窗，该观察视窗朝向所述纸卷放置腔。
需要说明的是：
1、本申请所述“打印纸”并不限于传统的纸张或纸条，还包括可以用于打印的其它薄片状物品，如胶质腕带，塑料腕带，纸质腕带，热敏腕带等等。
2、本申请所述“第一”、“第二”并不代表具体的数量及顺序，而是对于部件名称的区分。
下面对前述技术方案的优点或原理进行说明。
1、在壳体内设有纸卷放置腔，打印头单独的设置于固定架上，在加装打印纸或更换打印纸时，打开盖板露出操作开窗，再将打印纸套在卷轴上；将打印纸装好后，通过操作控制部进行操作控制，以将打印纸调整到最佳状态，再盖上盖板进行打印，避免打印过程中误触操作控制部；该结构加装或更换打印纸更方便，减少了对打印纸及打印机的损坏，打印时可靠性更高。
2、圆球形或圆弧形的圆心高于壳体底部的平面，使打印机占用面积小；壳体呈圆球形或圆弧形，可以保证打印机内部具有更多的空间，以方便安装打印纸，并且其外形美观。
3、所述盖板的下部与所述壳体的底部铰接连接，在打开盖板时，减少了盖板对打印机旁侧的其它物件之间的碰撞与干涉。
4、在壳体前侧的上部设有着手顶片，在着手顶片上设有凹部，在打开盖板时，手指可以压在着手顶片的凹部上，轻轻一扣，即可将盖板打开。
5、在打印机的壳体上设有显示屏，打印机的打印状态等打印信息，可以由控制电路传输至显示屏，并通过显示屏向外显示，使用更方便。
6、走纸台上设有第一滑槽及第二滑槽，第一限位片、第二限位片可以分别在第一滑槽、第二滑槽内滑动，对第一限位片与第二限位片之间的距离进行调节，以使第一限位片与第二限位片之间的宽度与条带的宽度相适应。
7、在操作时，拨动调整轮，并带动过轮转动，由于第一齿条、第二齿条均与过轮啮合，使得第一限位片、第二限位片的移动距离相等，即第一限位片、第二限位片均向中部移近或移开相同距离，对中效果好。
8、第一齿轮的齿数大于第二齿轮的齿数，第三齿轮的齿数大于第四齿轮的齿数，在调整时具有减速功能，可以通过调整齿实现第一限位片、第二限位片距离的微调。
9、所述第一限位片、第二限位片均包括有连接端部及内侧片，内侧片的高度十分接近打印纸的厚度，更好地实现固定打印纸在打印过程中不产生偏移，进一步保证打印的效果。
10、由于卷轴并非采用圆柱形结构，而是采用正多边的柱形结构，卷轴与纸卷之间通过角部位置接触，其接触面非常小，并且接触面为弧形，接触面更平滑；通过正多面柱形的角部与纸卷进行定位，减少了纸卷的晃动，保持纸卷在走纸过程中的固定，打印效果更好。
11、在所述卷轴的侧表面设有挡片，通过该挡片对纸卷进行轴向限位，避免了在轴向上左右晃动而从卷轴上脱落，由于卷轴为多边柱形结构，可以将挡片设于侧表面上，使整个结构紧凑；在所述侧表面设有径向凸出的导条，可以对纸卷进一步轴向限位在正中心，实现在走纸过程中纸卷可任意向前滚动，晃动小。
12、所述挡片设于弹片的端部，按下弹片时挡片径向向内收缩，保证纸卷可随时、任意轻松装入卷轴，弹片弹起即可将纸卷限位。
13、设置轴台后，可以在其内部安装打印纸感测元件，用于对打印纸的使用情况进行感测，若打印纸数量不够，可以向使用者提示，使用更方便，并且轴台可以对卷轴起到加固作用，减少卷轴的歪斜与变形。
14、由于在走纸台附近设置有导电刷，在打印时，纸张会通过走纸台，此时，导电刷会与纸张的表面接触并将纸张表面的静电吸附，避免静电在纸张表面而影响到打印效果，降低安全隐患。
15、所述导电刷为至少两个，可以更全面的消除静电，效果更理想。
16、第一导电刷相对于所述第三辊更靠近所述卷轴，第二导电刷相对于所述打印头更靠近所述壳体，第一导电刷可以消除纸张摩擦所产生的静电，第二导电刷可以消除走纸辊与纸张摩擦所产生的静电以及打印头发热所产生的静电。
17、所述固定架及壳体均为金属材质，导电刷与该固定架电性连接，导电刷所产生的静电传导至固定架并通过固定架导走。
18，由于直接将夹扣盒设置于打印机的盒体上，不需再占用桌面的空间，可以使桌面更整洁。
19、将夹扣盒设置于打印机上，减少了成本，在使用时也不会将夹扣盒打翻，使用更方便。
20、在壳体上设有散热孔，该散热孔朝向电路板，电路板所散发的热量可以通过散热孔向外散出，改善了打印机的散热效果，提高了打印机的使用寿命及打印效果。
21、安装架为金属材质，电路板所散热的热量还可以传递至该金属材质的安装架上，并通过该安装架、金属的壳体向外散发，进一步提高了打印机的散热效果。
22、在壳体的底板处也设有散热孔，可以改善驱动电机处的散热效果。
23、设置有三个走纸辊，第一辊与打印头相对，第二辊与第三辊相对，根据用户需要，可以方便的实现进纸与退纸，使用更方便。
24、外盖将打印头、第一辊、第二辊、第三辊盖住，在进纸或退纸时，无需将打印头打开，减少了灰尘进入的机会，也避免误碰而造成打印头的损伤。
25、该打印机可以方便的实现进退纸，在打印过程中，可以随时操作实现进退纸，让打印纸与打印头接触，产生摩擦，并通过打印纸自动将打印头的灰尘带走，从而实现打印头的自动清洁功能，进一步提高打印的质量，达到意想不到的清洁效果。
26、通过控制电路及走纸操作部，可以更方便的对进纸及退纸进行控制，甚至可以实现自动进纸及自动退纸，并实现进纸量及退纸量的精确控制；进纸键相对于退纸键更靠近所述打印头，按下靠近打印头一侧的进纸健，打印纸向打印头一侧移动，按下远离打印头一侧的退纸键，打印纸远离打印头一侧移动，操作更直观。
27、通过上感应头、下感应头，可以对打印纸进行定位，也可以感应打印纸的进纸量或退纸量，以实现精确控制。
28、在打印机工作时，驱动电机通过输出齿轮、传动齿轮带动第一同步齿轮、第二同步齿轮转动，第一同步齿轮与第二同步齿轮的转速相等，使得第一辊、第二辊同步转动，打印纸通过第一辊、第二辊带动时，其移动更可靠，可以方便的实现打印纸的进纸及退纸，打印纸不易歪斜及卡纸。
29、传动齿轮包括第一减速齿轮组、第二减速齿轮组及同步轮，通过第一减速齿轮及第二减速齿轮可以实现减速，使打印机进纸及退纸更平稳。
30、所述第一同步齿轮、第二同步齿轮的轴心连线水平，可以保证打印纸处于基本水平的状态。
31、由于在走纸台上设有隔片，隔片之间形成开槽，走纸台上部与下部的两个走纸辊在开槽处接触配合并带动打印纸前进，隔片可以阻止打印纸下卷而卡入打印机；减少了打印纸的浪费及打印机的损坏。
32、走纸台由第一平台及第二平台对接而成，加工及安装更方便。
33、在下部的走纸辊上设有多个轴颈，该轴颈可以对隔片进行让位。
34、在打印时，将卷状的打印纸套装于卷轴上，当打印纸较少时，打印纸传感元件感应到打印纸的状态，如果打印纸过少，则打印纸传感元件会向控制电路发出提示信号并向外提示，使用更方便。
35、在所述壳体上设有观察视窗，方便通过肉眼直接进行观察。
附图说明
图1是本发明实施例所述打印机盖上后的结构图；
图2是本发明实施例所述打印机打开后的结构图；
图3是图2的局部拆解图；
图4是图3中，走纸台处的局部放大图；
图5是图3中，第二辊、第三辊与第一导电刷处的局部放大图；
图6是图3中，卷轴处的局部放大图；
图7是本发明实施例所述打印机的背侧结构图；
图8是本发明实施例所述打印机的背侧拆开图；
图9是走纸台处的拆解图；
图10是走纸台的底部视图；
图11是固定架背侧的传动结构图；
附图标记说明：
1、壳体，2、纸卷放置腔，3、固定架，4、打印头，5、出纸口，6、卷轴，7、操作控制部，8、盖板，9、底板，10、圆弧面，11、着手顶片，12、卡扣，13、凹部，14、显示屏，15、走纸台，16、调整机构，17、第一滑槽，18、第一限位片，19、第二限位片，20、侧表面，21、接触面，22、挡片，23、导条，24、弹片，25、轴台，26、感测孔，27、同步轮，28、第一辊，29、第二辊，30、第三辊，31、第一导电刷，32、第二导电刷，33、观察视窗，34、夹扣盒，35、进纸键，36、退纸键，37、散热孔，38、电路板，39、主架，40、侧板，41、开槽，42、第一平台，43、第二平台，44、对位缺，45、隔片，46、第二滑槽，47、轴颈，48、调整轮，49、驱动电机，50、第一齿条，51、第二齿条，52、上感应头，53、下感应头，54、第一齿轮，55、第二齿轮，56、第三齿轮，57、第四齿轮，58、输出齿轮，59、第一同步齿轮，60、第二同步齿轮，61、第一减速齿轮组，62、第二减速齿轮组。
具体实施方式
下面对本发明的实施例进行详细说明：
如图1至图11所示，一种打印机，包括壳体1，在壳体1内设有纸卷放置腔2、固定架3及控制电路，固定架3上设有打印头4，在壳体1上设有与打印头4相对应的出纸口5，纸卷放置腔2内设有卷轴6，在固定架3上设有操作控制部7，在壳体1一侧开设有操作开窗，在壳体1上设有盖板8，该盖板8与操作开窗相适应，盖板8盖上操作开窗后，该盖板8与卷轴6的轴端相对，且盖板8将操作控制部7盖住。
所述壳体1呈圆球形或圆弧形，其底部为平面，前述圆球形或圆弧形的圆心高于底部的平面。所述壳体1的左侧、顶侧、右侧形成连续的圆弧面10，所述壳体1前侧的盖板8也为平面。所述盖板8的下部与所述壳体1的底部铰接连接。在所述壳体1前侧的上部设有着手顶片11，着手顶片11与所述盖板8之间设有相应的卡扣卡扣12，在着手顶片11上设有凹部13。
在所述壳体1上还设有显示屏14，该显示屏14与所述控制电路电气连接。
在所述固定架3上设有走纸台15及调整机构16，所述操作控制部7包括该调整机构16，走纸台15上设有相互平行的第一滑槽17及第二滑槽46，在第一滑槽17及第二滑槽46处分别设有第一限位片18、第二限位片19，在调整机构16的作用下，第一限位片18、第二限位片19能分别在第一滑槽17、第二滑槽46内移动。所述第一限位片18、第二限位片19均包括有连接端部及与连接端部连接的内侧片，且第一限位片18的内侧片与第二限位片19的内侧片相对。所述调整机构16包括调整轮48、过轮、第一齿条50及第二齿条51，第一齿条50、第二齿条51分别与所述第一限位片18、第二限位片19连接。所述调整轮48包括叠置且固接的第一齿轮54及第二齿轮55，所述过轮包括叠置的第三齿轮56及第四齿轮57，第一齿轮54外露，第二齿轮55与第三齿轮56啮合，第四齿轮57同时与第一齿条50、第二齿条51啮合；第一齿轮54的齿数大于第二齿轮55的齿数，第三齿轮56的齿数大于第四齿轮57的齿数。所述第一齿条50、第二齿条51分别位于所述第四齿轮57的两个相反侧。
所述卷轴6呈正多边柱形，其具有多个侧表面20，各侧表面20过渡处为弧形的接触面21。在所述卷轴6的侧表面20靠卷轴6的外端位置设有挡片22，且在所述侧表面20设有径向凸出的导条23。在所述侧表面20设有两个条孔，两个条孔之间形成弹片24，所述挡片22设于弹片24的端部。所述卷轴6的横截面呈正方形，所述弹片24设于卷轴6相对的两个侧面上。还包括有轴台25，该轴台25安装于壳体1的内壁，所述卷轴6安装于轴台25的外端面，在轴台25内设有打印纸感测元件安装位，在轴台25的前端面还设有感测孔26，感测孔26朝向纸卷放置腔2，所述轴台25呈圆台形。
还包括有导电刷，该导电刷朝向所述走纸台15，且导电刷与外接导电体电性连接。所述走纸辊包括第一辊28、第二辊29及第三辊30，第一辊28、第二辊29设于走纸台的下部，第三辊30设于走纸台的上部，第一辊28与所述打印头4成对设置，第二辊29与第三辊30成对设置，所述走纸台15形成于第一辊28与打印头4之间、第二辊29与第三辊30之间。所述导电刷为两个，分别为第一导电刷31及第二导电刷32，第一导电刷31相对于所述第三辊30更靠近所述卷轴6，第二导电刷32相对于所述打印头4更靠近所述壳体1。所述导电刷的刷毛呈排状，其排列方向与所述走纸台15垂直。所述固定架3及壳体1均为金属材质，所述外接导电体为该固定架3。
在所述壳体1上设有夹扣盒34。在所述壳体1的上部设有顶部槽，所述夹扣盒34装于该顶部槽内。
在所述壳体1内设有电路板38及安装架，所述控制电路安装于电路板38上，电路板38设于安装架上，安装架固定于壳体1内，在壳体1上设有散热孔37，该散热孔37朝向所述电路板38。所述安装架为金属材质。所述安装架包括主架39及侧板40，侧板40与主架39连接，所述电路板38安装于侧板40上。在所述固定架3的安装架上设有驱动电机49。所述壳体1包括底板9，在底板9上也设有散热孔37，该散热孔37靠近所述驱动电机49。
还包括有外盖，第一辊28与打印头4相对设置于所述走纸台15的前部，第二辊29与第三辊30相对设置于所述走纸台15的后部，外盖将打印头4、第一辊28、第二辊29、第三辊30盖住。所述操作控制部7包括有走纸操作部，走纸操作部、驱动电机49均与所述控制电路电气连接，走纸操作部露出于所述外盖，驱动电机49与所述第一辊28、第二辊29或第三辊30连接并驱动所述第一辊28、第二辊29及第三辊30。所述走纸操作部包括进纸键35及退纸键36，进纸键35相对于退纸键36更靠近所述打印头4。还包括有上感应头52及下感应头53，上感应头52、下感应头53相对，且上感应头52、下感应头53分别位于所述走纸台15的上方、下方。
在所述固定架3上设有传动齿轮、第一同步齿轮59、第二同步齿轮60、，驱动电机49具有输出轴，该输出轴上设有输出齿轮58，输出齿轮58与传动齿轮啮合，传动齿轮同时与第一同步齿轮59、第二同步齿轮60啮合，第一同步齿轮59、第二同步齿轮60的齿数相等，第一辊28、第二辊29分别与所述第一同步齿轮59、第二同步齿轮60连接。所述传动齿轮包括第一减速齿轮组61、第二减速齿轮组62及同步轮27，第一减速齿轮组61、第二减速齿轮组62均包括主动齿及从动齿，主动齿的齿数多于从动齿的齿数，输出齿轮58与第一减速齿轮组61的主动齿啮合，第一减速齿轮组61的从动齿与第二减速齿轮组62的主动齿啮合，第二减速齿轮组62的从动齿与过轮啮合。所述第一同步齿轮59、第二同步齿轮60的轴心连线水平。
在所述走纸台15的上部、下部分别设有走纸辊，在走纸台15上设有至少两个隔片45，两个隔片45之间形成开槽41，走纸台15上部的走纸辊与走纸台15下部的走纸辊在开槽41处接触配合。所述走纸台15包括第一平台42及第二平台43，在第一平台42上设有对位缺44，所述隔片45设于第二平台43上，隔片45伸入对位缺44内。且第一辊28、第二辊29位于所述走纸台15的上部，第三辊30设于所述走纸台15的下部，第二辊29、第三辊30上设有至少两个轴颈47，所述隔片45位于轴颈47内，所述第一辊28呈圆柱状。
在壳体1内设有打印纸传感元件，打印纸传感元件朝向纸卷放置腔2，且打印纸传感元件与所述控制电路电性连接。在所述壳体1上设有观察视窗33，该观察视窗33朝向所述纸卷放置腔2。
下面对前述技术方案的优点或原理进行说明。
1、在壳体1内设有纸卷放置腔2，打印头4单独的设置于固定架3上，在加装打印纸或更换打印纸时，打开盖板8露出操作开窗，再将打印纸套在卷轴6上；将打印纸装好后，通过操作控制部7进行操作控制，以将打印纸调整到最佳状态，再盖上盖板8进行打印，避免打印过程中误触操作控制部7；该结构加装或更换打印纸更方便，减少了对打印纸及打印机的损坏，打印时可靠性更高。
2、圆球形或圆弧形的圆心高于壳体1底部的平面，使打印机占用面积小；壳体1呈圆球形或圆弧形，可以保证打印机内部具有更多的空间，以方便安装打印纸，并且其外形美观。
3、所述盖板8的下部与所述壳体1的底部铰接连接，在打开盖板8时，减少了盖板8对打印机旁侧的其它物件之间的碰撞与干涉。
4、在壳体1前侧的上部设有着手顶片11，在着手顶片11上设有凹部13，在打开盖板8时，手指可以压在着手顶片11的凹部13上，轻轻一扣，即可将盖板8打开。
5、在打印机的壳体1上设有显示屏14，打印机的打印状态等打印信息，可以由控制电路传输至显示屏14，并通过显示屏14向外显示，使用更方便。
6、走纸台15上设有第一滑槽17及第二滑槽46，第一限位片18、第二限位片19可以分别在第一滑槽17、第二滑槽46内滑动，对第一限位片18与第二限位片19之间的距离进行调节，以使第一限位片18与第二限位片19之间的宽度与条带的宽度相适应。
7、在操作时，拨动调整轮48，并带动过轮转动，由于第一齿条50、第二齿条51均与过轮啮合，使得第一限位片18、第二限位片19的移动距离相等，即第一限位片18、第二限位片19均向中部移近或移开相同距离，对中效果好。
8、第一齿轮54的齿数大于第二齿轮55的齿数，第三齿轮56的齿数大于第四齿轮57的齿数，在调整时具有减速功能，可以通过调整齿实现第一限位片18、第二限位片19距离的微调。
9、所述第一限位片18、第二限位片19均包括有连接端部及内侧片，内侧片的高度十分接近打印纸的厚度，更好地实现固定打印纸在打印过程中不产生偏移，进一步保证打印的效果。
10、由于卷轴6并非采用圆柱形结构，而是采用正多边的柱形结构，卷轴6与纸卷之间通过角部位置接触，其接触面21非常小，并且接触面21为弧形，接触面21更平滑；通过正多面柱形的角部与纸卷进行定位，减少了纸卷的晃动，保持纸卷在走纸过程中的固定，打印效果更好。
11、在所述卷轴6的侧表面20设有挡片22，通过该挡片22对纸卷进行轴向限位，避免了在轴向上左右晃动而从卷轴6上脱落，由于卷轴6为多边柱形结构，可以将挡片22设于侧表面20上，使整个结构紧凑；在所述侧表面20设有径向凸出的导条23，可以对纸卷进一步轴向限位在正中心，实现在走纸过程中纸卷可任意向前滚动，晃动小。
12、所述挡片22设于弹片24的端部，按下弹片24时挡片22径向向内收缩，保证纸卷可随时、任意轻松装入卷轴6，弹片24弹起即可将纸卷限位。
13、设置轴台25后，可以在其内部安装打印纸感测元件，用于对打印纸的使用情况进行感测，若打印纸数量不够，可以向使用者提示，使用更方便，并且轴台25可以对卷轴6起到加固作用，减少卷轴6的歪斜与变形。
14、由于在走纸台15附近设置有导电刷，在打印时，纸张会通过走纸台15，此时，导电刷会与纸张的表面接触并将纸张表面的静电吸附，避免静电在纸张表面而影响到打印效果，降低安全隐患。
15、所述导电刷为两个，可以更全面的消除静电，效果更理想。
16、第一导电刷31相对于所述第三辊30更靠近所述卷轴6，第二导电刷32相对于所述打印头4更靠近所述壳体1，第一导电刷31可以消除纸张摩擦所产生的静电，第二导电刷32可以消除走纸辊与纸张摩擦所产生的静电以及打印头4发热所产生的静电。
17、所述固定架3及壳体1均为金属材质，导电刷与该固定架3电性连接，导电刷所产生的静电传导至固定架3并通过固定架3导走。
18，由于直接将夹扣盒34设置于打印机的盒体上，不需再占用桌面的空间，可以使桌面更整洁。
19、将夹扣盒34设置于打印机上，减少了成本，在使用时也不会将夹扣盒34打翻，使用更方便。
20、在壳体1上设有散热孔37，该散热孔37朝向电路板38，电路板38所散发的热量可以通过散热孔37向外散出，改善了打印机的散热效果，提高了打印机的使用寿命及打印效果。
21、安装架为金属的固定架，电路板38所散热的热量还可以传递至该金属材质的安装架上，并通过该安装架向外散发，进一步提高了打印机的散热效果。
22、在壳体1的底板9处也设有散热孔37，可以改善驱动电机49处的散热效果。
23、设置有三个走纸辊，第一辊28与打印头4相对，第二辊29与第三辊30相对，根据用户需要，可以方便的实现进纸与退纸，使用更方便。
24、外盖将打印头4、第一辊28、第二辊29、第三辊30盖住，在进纸或退纸时，无需将打印头4打开，减少了灰尘进入的机会，也避免误碰而造成打印头4的损伤。
25、该打印机可以方便的实现进退纸，在打印过程中，可以随时操作实现进退纸，让打印纸与打印头4接触，产生摩擦，并通过打印纸自动将打印头4的灰尘带走，从而实现打印头4的自动清洁功能，进一步提高打印的质量，达到意想不到的清洁效果。
26、通过控制电路及走纸操作部，可以更方便的对进纸及退纸进行控制，甚至可以实现自动进纸及自动退纸，并实现进纸量及退纸量的精确控制；进纸键35相对于退纸键36更靠近所述打印头4，按下靠近打印头4一侧的进纸健，打印纸向打印头4一侧移动，按下远离打印头4一侧的退纸键36，打印纸远离打印头4一侧移动，操作更直观。
27、通过上感应头52、下感应头53，可以对打印纸进行定位，也可以感应打印纸的进纸量或退纸量，可以实现精确控制。
28、在打印机工作时，驱动电机49通过输出齿轮58、传动齿轮带动第一同步齿轮59、第二同步齿轮60转动，第一同步齿轮59与第二同步齿轮60的转速相等，使得第一辊28、第二辊29同步转动，打印纸通过第一辊28、第二辊29带动时，其移动更可靠，可以方便的实现打印纸的进纸及退纸，打印纸不易歪斜及卡纸。
29、传动齿轮包括第一减速齿轮组61、第二减速齿轮组62及同步轮27，通过第一减速齿轮及第二减速齿轮可以实现减速，使打印机进纸及退纸更平稳。
30、所述第一同步齿轮59、第二同步齿轮60的轴心连线水平，可以保证打印纸处于基本水平的状态。
31、由于在走纸台15上设有隔片45，隔片45之间形成开槽41，走纸台15上部与下部的两个走纸辊在开槽41处接触配合并带动打印纸前进，隔片45可以阻止打印纸下卷而卡入打印机；减少了打印纸的浪费及打印机的损坏。
32、走纸台15由第一平台42及第二平台43对接而成，加工及安装更方便。
33、在下部的走纸辊上设有多个轴颈47，该轴颈47可以对隔片45进行让位。
34、在打印时，将卷状的打印纸套装于卷轴6上，当打印纸较少时，打印纸传感元件（位于感测孔26的后面）感应到打印纸的状态，如果打印纸过少，则打印纸传感元件会向控制电路发出提示信号并向外提示，使用更方便。
35、在所述壳体1上设有观察视窗33，方便通过肉眼直接进行观察。
以上所述实施例仅表达了本发明的具体实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。

Claims (42)

  1. 一种打印机，其特征在于，包括壳体，在壳体内设有纸卷放置腔、固定架及控制电路，固定架上设有打印头，在壳体上设有与打印头相对应的出纸口，纸卷放置腔内设有卷轴，在固定架上设有操作控制部，在壳体一侧开设有操作开窗，在壳体上设有盖板，该盖板与操作开窗相适应，盖板盖上操作开窗后，该盖板与卷轴的轴端相对，且盖板将操作控制部盖住。
  2. 根据权利要求1所述打印机，其特征在于，所述壳体呈圆球形或圆弧形，其底部为平面，前述圆球形或圆弧形的圆心高于底部的平面。
  3. 根据权利要求2所述打印机，其特征在于，所述壳体的左侧、顶侧、右侧形成连续的圆弧面，所述壳体前侧的盖板也为平面。
  4. 根据权利要求1所述打印机，其特征在于，所述盖板的下部与所述壳体的底部铰接连接。
  5. 根据权利要求4所述打印机，其特征在于，在所述壳体前侧的上部设有着手顶片，着手顶片与所述盖板之间设有相应的卡扣，在着手顶片上设有凹部。
  6. 根据权利要求1所述打印机，其特征在于，在所述壳体上还设有显示屏，该显示屏与所述控制电路电气连接。
  7. 根据权利要求1所述打印机，其特征在于，在所述固定架上设有走纸台及调整机构，所述操作控制部包括该调整机构，走纸台上设有相互平行的第一滑槽及第二滑槽，在第一滑槽及第二滑槽处分别设有第一限位片、第二限位片，在调整机构的作用下，第一限位片、第二限位片能分别在第一滑槽、第二滑槽内移动。
  8. 根据权利要求7所述打印机，其特征在于，所述第一限位片、第二限位片均包括有连接端部及与连接端部连接的内侧片，且第一限位片的内侧片与第二限位片的内侧片相对。
  9. 根据权利要求7所述打印机，其特征在于，所述调整机构包括调整轮、过轮、第一齿条及第二齿条，第一齿条、第二齿条分别与所述第一限位片、第二限位片连接，调整轮与过轮啮合，过轮同时与第一齿条、第二齿条啮合。
  10. 根据权利要求9所述打印机，其特征在于，所述调整轮包括叠置且固接的第一齿轮及第二齿轮，所述过轮包括叠置的第三齿轮及第四齿轮，第一齿轮外露，第二齿轮与第三齿轮啮合，第四齿轮同时与第一齿条、第二齿条啮合；第一齿轮的齿数大于第二齿轮的齿数，第三齿轮的齿数大于第四齿轮的齿数。
  11. 根据权利要求9所述打印机，其特征在于，所述第一齿条、第二齿条分别位于所述第四齿轮的两个相反侧。
  12. 根据权利要求1至11中任一项所述打印机，其特征在于，所述卷轴呈正多边柱形，其具有多个侧表面，各侧表面过渡处为弧形的接触面。
  13. 根据权利要求12所述打印机，其特征在于，在所述卷轴的侧表面靠卷轴的外端位置设有挡片，且在所述侧表面设有径向凸出的导条。
  14. 根据权利要求13所述打印机，其特征在于，在所述侧表面设有两个条孔，两个条孔之间形成弹片，所述挡片设于弹片的端部。
  15. 根据权利要求12所述打印机，其特征在于，所述卷轴的横截面呈正方形，所述弹片设于卷轴相对的两个侧面上。
  16. 根据权利要求12所述打印机，其特征在于，还包括有轴台，该轴台安装于壳体的内壁，所述卷轴安装于轴台的外端面，在轴台内设有打印纸感测元件安装位，在轴台的前端面还设有感测孔，感测孔朝向纸卷放置腔。
  17. 根据权利要求16所述打印机，其特征在于，所述轴台呈圆台形。
  18. 根据权利要求1至11中任一项所述打印机，其特征在于，在所述走纸台的上部、下部分别设有走纸辊，还包括有导电刷，该导电刷朝向所述走纸台，且导电刷与外接导电体电性连接。
  19. 根据权利要求18所述打印机，其特征在于，所述走纸辊包括第一辊、第二辊及第三辊，第一辊与所述打印头成对设置，第二辊与第三辊成对设置，所述走纸台形成于第一辊与打印头之间、第二辊与第三辊之间。
  20. 根据权利要求19所述打印机，其特征在于，所述导电刷为至少两个，均设于所述走纸台上，且均与所述外接导电体电性连接。
  21. 根据权利要求20所述打印机，其特征在于，所述导电刷为两个，分别为第一导电刷及第二导电刷，第一导电刷相对于所述第三辊更靠近所述卷轴，第二导电刷相对于所述打印头更靠近所述壳体。
  22. 根据权利要求18所述打印机，其特征在于，所述导电刷的刷毛呈排状，其排列方向与所述走纸台垂直。
  23. 根据权利要求18所述打印机，其特征在于，所述固定架及壳体均为金属材质，所述固定架与壳体相连而形成所述外接导电体。
  24. 根据权利要求1至11中任一项所述打印机，其特征在于，在所述壳体上设有夹扣盒。
  25. 根据权利要求24所述打印机，其特征在于，在所述壳体的上部设有顶部槽，所述夹扣盒装于该顶部槽内。
  26. 根据权利要求1至11中任一项所述打印机，其特征在于，在所述壳体内设有电路板及安装架，所述控制电路安装于电路板上，电路板设于安装架上，安装架固定于壳体内，在壳体上设有散热孔，该散热孔朝向所述电路板。
  27. 根据权利要求26所述打印机，其特征在于，所述安装架为金属材质。
  28. 根据权利要求26所述打印机，其特征在于，所述安装架包括主架及侧板，侧板与主架连接，所述电路板安装于侧板上。
  29. 根据权利要求26所述打印机，其特征在于，在所述固定架的安装架上设有驱动电机。
  30. 根据权利要求29所述打印机，其特征在于，所述壳体包括底板，在底板上也设有散热孔，该散热孔靠近所述驱动电机。
  31. 根据权利要求1至11中任一项所述打印机，其特征在于，还包括有第一辊、第二辊、第三辊及外盖，第一辊与打印头相对设置于所述走纸台的前部，第二辊与第三辊相对设置于所述走纸台的后部，外盖将打印头、第一辊、第二辊、第三辊盖住。
  32. 根据权利要求31所述打印机，其特征在于，在所述固定架上还设有驱动电机，所述操作控制部包括有走纸操作部，走纸操作部、驱动电机均与所述控制电路电气连接，走纸操作部露出于所述外盖，驱动电机与所述第一辊、第二辊或第三辊连接并驱动所述第一辊、第二辊及第三辊。
  33. 根据权利要求31所述打印机，其特征在于，所述走纸操作部包括进纸键及退纸键，进纸键相对于退纸键更靠近所述打印头。
  34. 根据权利要求31所述打印机，其特征在于，还包括有上感应头及下感应头，上感应头、下感应头相对，且上感应头、下感应头分别位于所述走纸台的上方、下方。
  35. 根据权利要求1至11中任一项所述打印机，其特征在于，在所述固定架上设有驱动电机、传动齿轮、第一同步齿轮、第二同步齿轮、第一辊及第二辊，驱动电机具有输出轴，该输出轴上设有输出齿轮，输出齿轮与传动齿轮啮合，传动齿轮同时与第一同步齿轮、第二同步齿轮啮合，第一同步齿轮、第二同步齿轮的齿数相等，第一辊、第二辊分别与所述第一同步齿轮、第二同步齿轮连接。
  36. 根据权利要求35所述打印机，其特征在于，所述传动齿轮包括第一减速齿轮组、第二减速齿轮组及同步轮，第一减速齿轮组、第二减速齿轮组均包括主动齿及从动齿，主动齿的齿数多于从动齿的齿数，输出齿轮与第一减速齿轮组的主动齿啮合，第一减速齿轮组的从动齿与第二减速齿轮组的主动齿啮合，第二减速齿轮组的从动齿与过轮啮合。
  37. 根据权利要求35所述打印机，其特征在于，所述第一同步齿轮、第二同步齿轮的轴心连线水平。
  38. 根据权利要求1至11中任一项所述打印机，其特征在于，在所述走纸台的上部、下部分别设有走纸辊，在走纸台上设有至少两个隔片，两个隔片之间形成开槽，走纸台上部的走纸辊与走纸台下部的走纸辊在开槽处接触配合。
  39. 根据权利要求34所述打印机，其特征在于，所述走纸台包括第一平台及第二平台，在第一平台上设有对位缺，所述隔片设于第二平台上，隔片伸入对位缺内。
  40. 根据权利要求38所述打印机，其特征在于，所述走纸辊包括第一辊、第二辊及第三辊，第一辊与所述打印头成对设置，第二辊与第三辊成对设置，且第一辊、第二辊位于所述走纸台的上部，第三辊设于所述走纸台的下部，第二辊、第三辊上设有至少两个轴颈，所述隔片位于轴颈内，所述第一辊呈圆柱状。
  41. 根据权利要求1至11中任一项所述打印机，其特征在于，在壳体内设有打印纸传感元件，打印纸传感元件朝向纸卷放置腔，且打印纸传感元件与所述控制电路电性连接。
  42. 根据权利要求41所述打印机，其特征在于，在所述壳体上设有观察视窗，该观察视窗朝向所述纸卷放置腔。
PCT/CN2012/087830 2012-05-31 2012-12-28 打印机 WO2013177931A1 (zh)

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