CN110936726A - Novel self-driven thermal printing head - Google Patents
Novel self-driven thermal printing head Download PDFInfo
- Publication number
- CN110936726A CN110936726A CN201911229282.1A CN201911229282A CN110936726A CN 110936726 A CN110936726 A CN 110936726A CN 201911229282 A CN201911229282 A CN 201911229282A CN 110936726 A CN110936726 A CN 110936726A
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- China
- Prior art keywords
- thermal
- printing
- printing head
- rubber roller
- unit
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- 238000007651 thermal printing Methods 0.000 title claims abstract description 27
- 238000007639 printing Methods 0.000 claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 230000003993 interaction Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- 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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
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- 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
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
-
- 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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/36—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for portability, i.e. hand-held printers or laptop printers
Abstract
The invention discloses a novel self-driven thermal printing head, which comprises a stepping motor, a heating unit (namely a thermal sensitive sheet), a photoelectric sensor, a rubber roller, a thermal sensitive printing single chip SOC and an FPC (flexible printed circuit) flexible flat cable interface, wherein the stepping motor is connected with the heating unit; the rubber roller is used for pressing the thermal paper to be tightly contacted with the thermal sheet; the stepping motor rotates the rubber roller and is used for driving the thermosensitive paper pressed by the rubber roller to be pushed forwards; the photoelectric sensor is used for detecting whether paper exists at a printing position; the heating unit (i.e. the heat sensitive sheet) is composed of a plurality of heating points (generally, 384 heating points are used for a 58mm thermal printing head, and 576 heating points are used for an 80mm thermal printing head). After the control mainboard is arranged on the FPC, a new printing head is formed, an external control driving unit is not needed, only a communication port is needed for receiving host instructions and printing data, then image content is printed, and a user only needs to send the printing data to the novel self-driven printing head through the communication port after taking the printing head.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a novel self-driving thermal printing head.
Background
The micro thermal printer is widely applied to built-in or external micro printer equipment of POS printers (commercial POS, financial POS), tax control printers, ATM, ECR, KIOSK, medical equipment and the like. In various fields such as business, logistics, industry, medical treatment and the like, a thermal printer is needed only in the scene of printing a receipt;
the existing printing heads can only be called as passive printing heads, a control main board is needed to control and drive the printing heads to heat line by line and control a stepping motor to feed paper to form a printed image, and a client needs to research complex printing head control (printing head drive control, synchronous coordination of motor control and communication, load balancing according to printing content) when using the printing heads, so that the operation is very complex.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The present invention is directed to a novel self-driving thermal printhead, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a novel self-driven thermal printing head comprises a stepping motor, a heating unit (namely a thermal sensitive sheet), a photoelectric sensor, a rubber roller, a thermal sensitive printing single chip SOC and an FPC flexible flat cable interface;
the rubber roller is used for pressing the thermal paper to be tightly contacted with the thermal sheet;
the stepping motor rotates the rubber roller and is used for driving the thermosensitive paper pressed by the rubber roller to be pushed forwards;
the photoelectric sensor is used for detecting whether paper exists at a printing position;
the heating unit (namely the heat sensitive sheet) consists of a plurality of heating points (generally, a 58mm heat sensitive printing head is 384 heating points, and an 80mm heat sensitive printing head is 576 heating points), and can be used for independently controlling one or more local points to heat instantly through a logic unit, so that the local color of the heat sensitive paper is changed;
the thermal printing single chip SOC is used for receiving printing data from a host and driving a printing head to finish printing of an image;
the FPC flexible flat cable is used for connecting the printing head and the thermal printing single chip SOC.
Further, the thermal printing single chip SOC comprises a Micro Control Unit (MCU), a word stock storage unit and a motor driving unit.
Furthermore, the Micro Control Unit (MCU) comprises an intelligent heating control unit and a human-computer interaction unit.
Further, the thermal printing single chip SOC is arranged on the FPC flexible flat cable to control the main board.
Furthermore, the Micro Control Unit (MCU), the word bank storage unit and the motor driving unit are electrically connected through a circuit.
Compared with the prior art, the invention has the following beneficial effects:
(1) the novel self-driving thermal printing head provided by the invention has the advantages that after the control mainboard is arranged on the FPC, the formed novel printing head does not need an external control driving unit any more, only the communication port is required to receive host instructions and printing data, then image content is printed out, and after a client takes the novel self-driving thermal printing head, the printing data is only required to be sent to the novel self-driving thermal printing head through the communication port.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a block diagram of a novel thermal printing control board of a self-driving thermal printing head according to an embodiment of the invention;
FIG. 2 is a schematic circuit diagram of a SOC chip minimum system for thermal printing of a novel self-driven thermal print head according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a stepper motor and heat generating plate interface circuit of a novel self-driven thermal print head according to an embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of a MOS transistor control and photo sensor of a novel self-driven thermal print head according to an embodiment of the present invention;
FIG. 5 is a schematic circuit diagram of a connection terminal of a printhead and a system host of a novel self-driving thermal printhead according to an embodiment of the invention;
FIG. 6 is a front view of an FPC trace of a novel self-driving thermal printhead according to an embodiment of the present invention;
FIG. 7 is a table of definition of 30PIN spacing 1.0mm printhead flex cable interface PINs for a novel self-driving thermal printhead, according to an embodiment of the present invention;
fig. 8 is a table of definition of 24PIN pitch 0.5mm printhead flex-cable interface PINs for a novel self-driving thermal printhead, according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-8, a novel self-driving thermal print head according to an embodiment of the present invention includes a stepping motor, a heating unit (i.e., a thermal sensing chip), a photoelectric sensor, a rubber roller, a thermal printing single chip SOC, and an FPC flexible flat cable interface;
the rubber roller is used for pressing the thermal paper to be tightly contacted with the thermal sheet;
the stepping motor rotates the rubber roller and is used for driving the thermosensitive paper pressed by the rubber roller to be pushed forwards;
the photoelectric sensor is used for detecting whether paper exists at a printing position;
the heating unit (namely the heat sensitive sheet) consists of a plurality of heating points (generally, a 58mm heat sensitive printing head is 384 heating points, and an 80mm heat sensitive printing head is 576 heating points), and can be used for independently controlling one or more local points to heat instantly through a logic unit, so that the local color of the heat sensitive paper is changed;
the thermal printing single chip SOC is used for receiving printing data from a host and driving a printing head to finish printing of an image;
the FPC flexible flat cable is used for connecting the printing head and the thermal printing single chip SOC.
Through the scheme of the invention, the thermal printing single chip SOC comprises a Micro Control Unit (MCU), a word stock storage unit and a motor driving unit.
According to the scheme, the Micro Control Unit (MCU) internally comprises an intelligent heating control unit and a human-computer interaction unit.
Through the scheme of the invention, the thermal printing single chip SOC is arranged on the FPC flexible flat cable to serve the function of controlling the main board.
According to the scheme of the invention, the Micro Control Unit (MCU), the word bank storage unit and the motor driving unit are electrically connected through a circuit.
In specific application, the control system according to fig. 1 only needs one thermal printer single-chip SOC and one crystal oscillator, and some simple resistors and capacitors; according to fig. 2, the interface between the motor and the thermal chip is kept consistent with the old passive print head, the left 4 is followed by the stepping motor, then the heating power supply, and the IO is controlled; according to the MOS transistor control circuit provided for the protection heating sheet on the left side of fig. 3, when the non-printing and PAPER feeding state VDD _ PT (heating power supply) is no voltage and power is supplied only when printing and PAPER feeding are performed, the right side U0 is a photoelectric reflection sensor for PAPER shortage detection and note gap detection, when PAPER is placed at the sensor position, infrared light emitted from the emission tube is reflected by the PAPER, the reception end receives the emitted infrared light and then conducts, the point PT _ PAPER is at a high level, and when no PAPER is present, the point PT _ PAPER is at a low level; on the left side of FIG. 4 is the printhead power supply VDD _ IN, then ground, logic power supply VDD33, then user UI and communications interface, and finally the reset pin; according to the figure 5, 4 wires are connected with a motor on the left side, a connecting terminal of a heating sheet is arranged on the upper row, a photoelectric sensor is arranged on the rightmost side, a terminal connected with a system mainboard is arranged on the lower row, the terminal is composed of a power supply, a user UI and a communication IO, meanwhile, for the reliability and the stability of the system, a large-current wiring and a small-current wiring are separated, the left side and the upper side of the whole flexible flat cable in the figure 5 are set to be large-current areas, and the right side and the lower side of the whole.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A novel self-driven thermal printing head is characterized by comprising a stepping motor, a heating unit (namely a thermal sensitive sheet), a photoelectric sensor, a rubber roller, a thermal printing single chip SOC and an FPC flexible flat cable interface;
the rubber roller is used for pressing the thermal paper to be tightly contacted with the thermal sheet;
the stepping motor rotates the rubber roller and is used for driving the thermosensitive paper pressed by the rubber roller to be pushed forwards;
the photoelectric sensor is used for detecting whether paper exists at a printing position;
the heating unit (namely the heat sensitive sheet) consists of a plurality of heating points (generally, a 58mm heat sensitive printing head is 384 heating points, and an 80mm heat sensitive printing head is 576 heating points), and can be used for independently controlling one or more local points to heat instantly through a logic unit, so that the local color of the heat sensitive paper is changed;
the thermal printing single chip SOC is used for receiving printing data from a host and driving a printing head to finish printing of an image;
the FPC flexible flat cable is used for connecting the printing head and the thermal printing single chip SOC.
2. The novel self-driving thermal print head according to claim 1, wherein the thermal printing single chip SOC comprises a Micro Control Unit (MCU), a word bank storage unit and a motor driving unit.
3. The novel self-driven thermal print head according to claim 2, wherein the Micro Control Unit (MCU) comprises an intelligent heating control unit and a human-computer interaction unit.
4. The self-driving thermal print head as claimed in claim 1, wherein the thermal print single chip SOC is disposed on the FPC flexible printed circuit for controlling the main board.
5. The self-driving thermal print head as claimed in claim 1, wherein the Micro Control Unit (MCU), the word bank storage unit and the motor driving unit are electrically connected through a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229282.1A CN110936726A (en) | 2019-12-04 | 2019-12-04 | Novel self-driven thermal printing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229282.1A CN110936726A (en) | 2019-12-04 | 2019-12-04 | Novel self-driven thermal printing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110936726A true CN110936726A (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911229282.1A Pending CN110936726A (en) | 2019-12-04 | 2019-12-04 | Novel self-driven thermal printing head |
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| CN (1) | CN110936726A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111645432A (en) * | 2020-05-28 | 2020-09-11 | 上海祥承通讯技术有限公司 | Portable printer control system based on smart phone chip |
| CN113400819A (en) * | 2021-06-17 | 2021-09-17 | 浙江汇诚汇捷影像数码科技有限公司 | Software control system and method for medical thermal printer |
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