from Adafruit_Thermal import *

printer = Adafruit_Thermal("/dev/ttyAMA0", 19200, timeout=5)

# Reset printer
printer.wake()
printer.flush()
printer.setDefault()

# Test inverse on & off
printer.inverseOn()
printer.println("Inverse ON")
printer.inverseOff()

# Test character double-height on & off
printer.doubleHeightOn()
printer.println("Double Height ON")
printer.doubleHeightOff()

# Test character double-width on & off
printer.doubleWidthOn()
printer.println("Double Width ON")
printer.doubleWidthOff()

# Set justification (right, center, left) -- accepts 'L', 'C', 'R'
printer.justify('R')
printer.println("Right justified")
printer.justify('C')
printer.println("Center justified")
printer.justify('L')
printer.println("Left justified")
Example #2
0
#!/usr/bin/python

from Adafruit_Thermal import *

printer = Adafruit_Thermal("/dev/ttyUSB0", 19200, timeout=5)

# Test inverse on & off
printer.inverseOn()
printer.println("Inverse ON")
printer.inverseOff()

# Test character double-height on & off
printer.doubleHeightOn()
printer.println("Double Height ON")
printer.doubleHeightOff()

# Set justification (right, center, left) -- accepts 'L', 'C', 'R'
printer.justify('R')
printer.println("Right justified")
printer.justify('C')
printer.println("Center justified")
printer.justify('L')
printer.println("Left justified")

# Test more styles
printer.boldOn()
printer.println("Bold text")
printer.boldOff()

printer.underlineOn()
printer.println("Underlined text")
Example #3
0
class Printer(object):
    """This class represents the printer"""

    def __init__(self, device, baud_rate, timeout):
        """Printer initialization
        
        :param device: Device path
        :type device: str
        :param baud: Baud rate
        :type baud: int
        :param timeout: Timeout in seconds
        :type timeout: int
        """
        self.print_size = 384, 384  # max_width=384

        self.device = Adafruit_Thermal(device, baud_rate, timeout=timeout)

    def _calibrate(self):
        for i in range(0, 256, 15):
            self.device.begin(i)
            self.device.println(i)  # Print heat time
            self.device.inverseOn()
            self.device.print("{:^32}".format(""))  # Print 32 spaces (inverted)
            self.device.inverseOff()

        self.device.begin()  # Reset heat time to default
        self.device.feed(4)

    def print_image(self, image_file_path, event):
        """Print Image

        :param image_file_path: Image file path
        :type image_file_path: str
        """
        # print logo
        self.device.printImage(Image.open(event["logo"]), True)

        self.device.justify("C")

        self.device.doubleHeightOn()
        self.device.println(event["title"])

        self.device.doubleHeightOff()
        self.device.println(datetime.now().strftime("%d-%m-%Y %H:%M:%S"))  # time

        self.device.feed(1)

        # print picture
        image_code = os.path.splitext(os.path.basename(image_file_path))[0]
        image_for_print_path = "{}.print".format(image_file_path)
        image_for_print = Image.open(image_file_path)  # create proxy image for print
        image_for_print = image_for_print.transpose(Image.ROTATE_180)  # rotate image
        w, h = image_for_print.size
        image_for_print.crop((int((w - h) / 2), 0, int((w - h) / 2), 0))
        image_for_print.thumbnail(self.print_size, Image.ANTIALIAS)  # resize
        image_for_print.save(image_for_print_path, "JPEG")  # save
        self.device.printImage(Image.open(image_for_print_path), True)
        self.device.feed(1)

        # print text
        self.device.println(event["place"])
        self.device.feed(1)

        # line
        self.device.println("------------------------------")

        self.device.feed(1)
        self.device.boldOn()
        self.device.println("partagez votre")
        self.device.println("photo avec le code")
        self.device.boldOff()
        self.device.doubleHeightOn()
        self.device.doubleWidthOn()
        self.device.println(image_code)
        self.device.doubleWidthOff()
        self.device.doubleHeightOff()
        self.device.boldOn()
        self.device.println("sur")
        self.device.boldOff()
        self.device.println("shootomatic.net")
        self.device.feed(1)

        # line
        self.device.println("------------------------------")

        # space to detach
        self.device.feed(3)

        # delete proxy image used for print
        os.remove(image_for_print_path)