Convert raw image to binary file for thermal Nippon Printer

img2bin.py

#This was made specifically using the spec sheet for NP-2511D (2 inch version)
#Spec sheet can be found here
#https://archive.org/details/NP2511D23511D2DF10116COMR100P1ENG

print("")
print("This program prepares your raw image file for thermal printing")
print("Insert your .raw file and convert into .txt binary file")
print("")

fileinput = input('Input file: ')
width = int(input('Width in px (must be multiple of 8): '))
height = int(input('Height in px: '))
cutflag = input('Do you want to cut after printing? (y/n): ')

print("Processing...")

fileoutput = fileinput[:-3] + "txt"

in_file = open(fileinput, 'rb')
out_file = open(fileoutput, 'wb')

widthhex = width/8
#Convert back to int without decimal place
widthhex = int(widthhex)
#Convert to little endian
heighthex = height.to_bytes(2, 'little')

widthhex = [widthhex]
heighthex = [heighthex[0], heighthex[1]]

settings = [0x1d, 0x57, 0x00, 0x4d, 0x1d, 0x53, 0x00]
printheader = [0x1b, 0x62]
cut = [0x1b, 0x69]

settings.extend(printheader)
settings.extend(widthhex)
settings.extend(heighthex)

out_file.write(bytes(settings))

while True:
    eight_bytes = in_file.read(8)

    if len(eight_bytes) == 0:
        break

    current_byte = 0x00
    for i in range(8):
        current_byte |= eight_bytes[i] << (7 - i)
    current_byte ^= 0xFF

    out_file.write(bytes([current_byte]))

if cutflag == "y":
    out_file.write(bytes(cut))