TW577826B - Thermal printer having a thermal print head alignment mechanism - Google Patents

Abstract

A thermal printer has a thermal print head alignment mechanism wherein the thermal printer includes a main body, a platen roller positioned in the main body for pressing a media to an imaging material for being printed thereon, a thermal printer head positioned in the main body for performing a printing operation on the imaging material, a guide positioned on a side of the platen roller for providing a track, a lever positioned on a side of the platen roller for moving the platen roller along the track provided by the guide, and a DC motor for driving the lever to push the platen roller.

Description

577826

TECHNICAL FIELD The invention relates to a thermal transfer printer, and more particularly to a thermal transfer printer with a thermal printing mechanism. Prior art

The printing device is an indispensable output device in the information age. Traditionally, ί = is generally used to print data on a piece of paper or media. However, with the advancement of various information technologies, new printing devices have been developed. The function of an inclusive list Ϊ i ί ::. Take a thermal transfer printer as an example. On the thermal transfer sheet, the captured image is printed on-paper printing, and the photo film must be processed to print the entire roll of film at one time. Transcribe the printer and use — ^ n negative sources and money. There is a set of paper and imaging materials (^^ head to print documents, its cassette), paper E is used to place Wlm ^ gi, ng material material box is used to place imaging materials, P materials such as paper 'and Fame ribbon. Koru ink film or

For the heat transfer of the stable machine with rollers or metal shrapnels, during the actual printing operation, a plurality of positioning is added in the housing of the machine, and the paper in the paper tray is set to be used for

^ // 826 V. Description of the invention j Platen field. Printing I is the industry's first head and paper and thermal type 1 piece and plural | printing operation I printing material | shrapnel, can be achieved at the beginning. The paper and I of Wangye I need to be improved. ⑵ The position of the person involved in the job is related to the positioning of the print head. The positioning of the print material trajectory requires the production of a thermal print head to define the coordinated method of interest. The location of the roller material is located at the cost of resources. The area of the precision focus area of the paper is used to move the paper and heat up the sheets in the process of square printing operations and mass-manufactured address positioning methods. Before and after the current processing method, the paper orientation and trajectory are defined respectively. It takes a lot of surfaces. Fine-printing materials are required. Hot rod writing is not economical. The location of the print head is not economical. Set up as provided by a set of metal magazines. However, the fixed positioning rollers and metal fine positioning and adjustment operations. For printers, the knowledge is too complicated, and it is urgent | Summary I Therefore, the main object of the present invention is to provide a thermal transfer printer with a thermal printing blue 2 丨 mechanism to solve the conventional thermal transfer printing Defects of the printer | points 0, I According to the patent application scope of the present invention, a thermal transfer printer with a hot-print guide mechanism is disclosed. The thermal transfer printer package; ^ 二 3 | Chassis, a platen roller, a thermal printer: (thermal printer head), a guide (Guide-TPH), a &) Yi Tang

577826 V. Description of the invention (3) Pole (1 ever) and has been painful to the people, to go to 廿 丄 x ^ body ΘIm s, where the platen roller is set on the printing material transferred by heat, so that the printing material ^ Λ; on the image forming material; the thermal print head is set in the casing, and the material is used for thermal transfer operation; 弓 弓 丨 导 “ΐ 于 热 印 — # 私 ° 又 J: i one side of the platen roller Is used to provide the moving track of the platen roller to move; the lever is provided on one side of the platen roller and is used to push the platen roller along the side of the guide; the DC motor is driven by The lever pushes the platen roller. The thermal transfer printer further includes an arc spring, a fixed end, a transmission gear set, a transmission cam, a lever driver, and a slide Slot, a tensile spring, a ribbon cassette, and a paper cassette; the transmission gear set is connected to the DC motor to transmit the driving power of the DC motor; the transmission cam is connected to the transmission gear set to transmit the DC The driving force of the motor reaches the platen roller and the lever; the lever driving member, The transmission cam is connected to receive the driving of the transmission cam to move; the sliding groove is fixed to the housing and contacts one side of the platen with one side; the tension spring is fixed to one end of the lever The ribbon cassette is used to store ink film or ribbon and other imaging materials; the paper placement IE 'is used to store printing materials. Φ Embodiment The printing operation of the thermal transfer printer can basically be divided into Three operation statuses: · Start status, paper feed status, and print status.

Page 7 577826 V. Description of Invention (4) See Figure 1. Fig. 1 is a schematic view showing a thermal transfer printer 20 in an initial state according to the present invention. The thermal transfer printer 20 includes a housing 1, a direct current motor 2, a platen roller 4, a thermal head 5, a guide 6, and a lever 7. 1 is used to press a printing material for thermal transfer so that the printing material can be abutted against an imaging material; a thermal print head 5 is provided in the casing 1 to heat the imaging material Transfer work; guide 6, fixed on thermal head 5, provided on one side of platen 4 to provide a moving track for platen 4 to move; lever 7 provided on one side of platen 4 It has a wheel hub 3 6, which rotates clockwise or counterclockwise with the hub 36 as the rotation axis, and then pushes the platen roller 4 along the side of the guide 6; the DC motor 2 is used to drive the lever 7 to push the pressure Paper roll 4. The thermal transfer printer 20 further includes an arc spring 8, a fixed end 9, a transmission gear set 3, a transmission cam 14, a lever driver 16, a tension spring 18, a sliding slot 19, A tension spring 34, a ribbon cassette, and a paper cassette (the black cassette and the paper cassette are not shown in the figure); among them, the fox springs through 8 ° and is on one side of the platen roller 4. To press the platen roller 4; the fixed end 9 is provided in the housing 1 to fix one end of the arc spring 8; the transmission gear set 3 is composed of a linkage gear set and is connected to the DC motor 2 and the transmission cam 14 In between, it is used to transmit the driving power of the DC motor 2 to the transmission cam 1 4 ″. On the other hand, the lever driving member 6 and the lever 7 are respectively provided with protruding ends 22 and 24 for dynamic fixing in the continuous body. , According to a trajectory of forward and backward movement; transmission cam 丨 4

577826 V. Description of the invention (5) Execution _ Road 2 8, the orbit 2 8 is caused by the rotation of the transmission cam 14 to rotate to push the protruding end 22 to move back and forth, thereby driving the lever driver 16, the platen roller 4 and the lever 7 to move 'and change the corresponding position; the thermal printer 2 0 is additionally provided with a [type lever 30 and a moving wheel 32 at the paper inlet, and a passive wheel 31 and a wheel valley are provided on the L-shaped lever 30 : A protruding end 26 and a tensile spring 34, the tensile spring 34 provides a covering force of 09 to return the driven wheel 31 on the L-shaped lever 30 to its original position. "One end is fixed in the housing 1 and the other end is connected. In L-shaped lever 30. And 26 are arranged on a parallel movement track in the housing 1, when the driving gear set 3 is used to drive the driving cam 14 at the same time; ^ ϋ will be driven by the protruding end 26 and the wheel center 38, : $ 300. Turn the needle counterclockwise to make the passive wheel 31 above it touch or move away from the master ": ^. It should be particularly noted that through the rotation of the driving wheel 32, the passive wheel 31 and the driving wheel 32 can perform a ratchet motion at the same time. ▼ Enter the platen roller 4 and the print head to perform thermal transfer writing. In the initial state, the passive wheel 2 stores ink film or ink ribbon and other imaging materials; gap I; color: more, use printing materials. In order to make the paper pressing roller 4 and the U-position industry smooth, the tension spring 18 and the core of the tension "in the movement when moving, the other end is respectively connected to the lever 'ί and fixed to the shell 1 f 7 And the l-shaped lever 30 is used to rotate $ ': for the bar pressure ίNINGί 1 \ 滑 ㈣19 is set in the * body 1 and is connected by the complex Λ / 坚, 氏, and the roller 4. As shown in Figure 1. , /, Side and M, ·, Shi, 衮 4 series received arc bomb

577826 V. Description of the invention (6) Is this on time? It falls on the groove formed by the sliding groove 19 and the cross bar 7, the A roller 4 and the thermal head 5 are not connected. I paper-like ΐ 2:. Fig. 2 shows the thermal transfer printer 20 of the present invention at first. When the thermal transfer printer 20 is in the paper feed state, it rotates, & f. The drive cam 14 moves in a counterclockwise direction, so as to bring ":: 2 pieces of movement S] 6: UU is pushed by the drive cam 14 ί The shaft center rotates clockwise; in this way, it is set on the L-shaped wheel 32, and the material 1 rolled on the driving wheel 32, such as the area between the industry roll = imaging material 4, is calculated as the bait roll to ... 17 Shuo 5 and the pressure roller U ^ ^ ^ ^ ^ range of benefits, here is nothing C: non-the present invention is elastically connected at one end to the stretch elastic =, the lever 7 will move the axis, clockwise rotation: and / With the hub 3 6 as the transfer roller 4 pushed by the lever 7; 5; f = paper roller 4. Press one side of the I guide 6 and the position will leave the / move groove 19 and lead along The elastic force 'arc' produced by the deformation: f 'At this time, because it is subjected to the upward thrust force applied to the platen roller 4: = = For the side of the "quote" of the lever 7, there will be no elastic engagement Yu Gong, guide page 10D // 6Z0

See Figure III. Figure _ schematic diagram of the printed state. = 2 is the linkage of the thermal transfer printer 20 of the present invention with the direct-current motor 2 to the next field when the thermal transfer printer 20 is in the printing state, and the drive is further driven by the drive gear set 3 Type tooth movement. At the same time, the protruding end 99 drives the cam 14 to move counterclockwise the wheel 14 to move, so that the belt: and 2 6 will be further subject to the transmission convex lever 3 0 clockwise slant = the lever driver 16 moves to the left, And the L-shaped press roller 4, make the pressure and recognition. Therefore, the lever 7 will further push the material 11 and the imaging material upwards to print on the thermal head 5 to print 1 M of the material 11 and the imaging material 10. Same, arc 幵 Λ ^ is printed as ϊ at this time. . And Figure-and Figure 2 fixed at the fixed end 9 fixed ^ ^ 8 continuous press of the press roller 4, due to being pushed by the lever 7, the second J becomes' because of the press roller. Guide 6 The power will be Λ; ί makes the platen roller 4 push to the dense address alignment process can be printed in a single pass-for the fine mountain required 丨 children > positive q 卞 you 汴, moon dagger hate early pure The downward and lateral pressure provided by Toxiong can be achieved. Compared with the conventional technology, the deformation mechanism of the tile is compared to the conventional technology. The thermal transfer printing print head guide mechanism of the present invention uses a platen roller, a guide, a "two ..." lever, so that the lever can follow the guide. The defined movement ^ and the shell pushes the pressure plate tear along the side of the guide, and the expensive track is used to print the head, so that the thermal print head can be abutted against the pressure roller and away from the heat Same as the above-mentioned paper 577826 V. Description of the invention (8) sheets, to achieve the precise address control of the thermal transfer operation, so that fewer components can be used to achieve the precise address control of the thermal transfer operation. In the preferred embodiment of the present invention, all equal changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the patent of the present invention. 577826 Brief description of the diagram Brief description of the diagram Schematic diagram of the writing printer in the initial state. Figure 2 is a schematic diagram of the thermal transfer printer in the paper feeding state of the present invention. Figure 3 is a schematic diagram of the thermal transfer printer in the printing state of the present invention. Symbol Description

Page 13 1 Housing 2 DC motor 3 Transmission gear set 4 Platen roller 5 Thermal head 6 Guide 7 Lever 8 Arc spring 9 Fixed end 10 Imaging material 11 Printing material 14 Transmission cam 16 Lever driver 18 Stretch Impeachment 19 Slide slot 20 Thermal transfer printer 22 Protruding end 24 Protruding end 26 Protruding end 28 Rail 30 L-shaped lever 31 Passive wheel 32 Driving wheel 34 Extension spring 36 Hub 38 Hub

Claims (1)

577826 6. The scope of patent application includes: press the printer to press an image—one inside, one side, one to guide the sundae; 衮 4 (platen roller), which is set in the housing for thermal transfer The printing medium is written so that the printing medium can be abutted on the material; ..., P head (thermal printer head) is provided in the casing ^, and the imaging material performs thermal transfer operation; a guide is fixed to the The thermal head is provided on the platen roller 1 ^ to provide a moving track for the platen roller to move; a lever is provided on one side of the platen roller and is used to push the platen along the side of the piece A platen roller; and a DC motor 'for driving the lever to push the platen roller. 2. The printer according to item 1 of the scope of patent application, further comprising an arc spring provided on one side of the platen roller for pressing the platen roller. 3. The printer according to item 2 of the patent application f, further comprising a fixing end provided in the casing for fixing one end of the arc spring. 4. According to the printer described in item 1 of the patent application, the lever can move the platen roller according to the fixed track of the guide, approaching or away from the π :: The thermal print head can abut on the ° paper covered on the platen roll. Machine print description, Η group. The household wheel rod item ti 1¾ rack gear should move the pass and Fan Gao tube, then connect the paper, please press the wheel. If the pressure wheel is convex to the power 6 transmission, it should include the driving force and direct the pass to 577826 6. Application for Patent Scope 5. The printer described in item 1 of the scope of patent application, further includes a transmission gear set connected to the DC motor for transmitting the driving power of the DC motor. 7. The printer according to item 6 of the scope of patent application, further comprising a lever driving member connected to the driving cam to receive the driving of the driving cam for movement. 8. The printer according to item 7 of the scope of patent application, further comprising a sliding groove fixed to the casing, and one side contacts one side of the platen roller. 9. The printer described in item 1 of the patent application scope further comprises a tension spring fixed to one end of the lever. 10. The printer according to item 1 of the scope of patent application, further comprising an imaging material box for storing imaging materials such as ink film or ink ribbon. Page 15 577826 6. Scope of patent application 11. The printer described in item 1 of the scope of patent application, which additionally includes a paper tray for printing materials. im Page 16