clean_ip3000.py

#! /usr/bin/env python3

import usb.util
import sys

ENDPOINT = 0x1
TIMEOUT = 1000
PAYLOADS = [
    [0x1B, 0x5B, 0x4B, 0x02, 0x00, 0x00, 0x1F, 0x42, 0x4A, 0x4C, 0x53, 0x54, 0x41, 0x52, 0x54, 0x0A,
     0x43, 0x6F, 0x6E, 0x74, 0x72, 0x6F, 0x6C, 0x4D, 0x6F, 0x64, 0x65, 0x3D, 0x44, 0x72, 0x69, 0x76,
     0x65, 0x72, 0x0A, 0x24, 0x4A, 0x6F, 0x62, 0x54, 0x79, 0x70, 0x65, 0x3D, 0x4D, 0x6E, 0x74, 0x0A,
     0x42, 0x4A, 0x4C, 0x45, 0x4E, 0x44],
    [0x1B, 0x5B, 0x4B, 0x02, 0x00, 0x00, 0x1F, 0x42, 0x4A, 0x4C, 0x53, 0x54, 0x41, 0x52, 0x54, 0x0A,
     0x43, 0x6F, 0x6E, 0x74, 0x72, 0x6F, 0x6C, 0x4D, 0x6F, 0x64, 0x65, 0x3D, 0x43, 0x6F, 0x6D, 0x6D,
     0x6F, 0x6E, 0x0A, 0x53, 0x65, 0x74, 0x54, 0x69, 0x6D, 0x65, 0x3D, 0x32, 0x30, 0x31, 0x38, 0x31,
     0x30, 0x30, 0x32, 0x31, 0x37, 0x32, 0x34, 0x34, 0x36, 0x0A, 0x53, 0x65, 0x74, 0x53, 0x69, 0x6C,
     0x65, 0x6E, 0x74, 0x3D, 0x4F, 0x46, 0x46, 0x0A, 0x42, 0x4A, 0x4C, 0x45, 0x4E, 0x44, 0x0A],
    [0x1B, 0x5B, 0x4B, 0x02, 0x00, 0x00, 0x1F, 0x42, 0x4A, 0x4C, 0x53, 0x54, 0x41, 0x52, 0x54, 0x0A,
     0x40, 0x43, 0x6C, 0x65, 0x61, 0x6E, 0x69, 0x6E, 0x67, 0x3D, 0x32, 0x41, 0x4C, 0x4C, 0x0A, 0x42,
     0x4A, 0x4C, 0x45, 0x4E, 0x44, 0x0A],
]

# find our device - canon ip3000
dev = usb.core.find(idVendor=0x04A9, idProduct=0x1094)
if dev is None:
    raise ValueError('Our device is not connected')

# workaround for: [Errno 16] Resource busy 
kernel_driver = dev.is_kernel_driver_active(0)

try:
    if kernel_driver:
        dev.detach_kernel_driver(0)

    # setup library
    dev.set_configuration()

    # write payloads
    for payload in PAYLOADS:        
            written = dev.write(ENDPOINT, payload, TIMEOUT)
            if written != len(payload):
                raise AssertionError(
                    "Written bytes did not match payload length - is the device busy?")

except Exception as e:
        sys.stderr.write(e)
        sys.stderr.write('\n')

# restore system state
if kernel_driver:
    dev.attach_kernel_driver(0)