I had the same issue and fixed it this way. Step 1: Download WIC Reset Tool here: https://resetkey.net/download and install program. Step 2: Connect printer to computer, connect computer to internet. Step 3: Get the reset key : https://resetkey.net Step 4: To reset Canon 5B00 Waste Ink Counter - 5B00 Error – You should be PUT CANON PRINTER IN SERVICE MODE! Step 5: Click on Clear Waste Counters then enter the reset key to reset your Canon printer 5B00 error Read more here: https://resetkey.net/how-to-reset-canon-g1000-error-5b00-waste-ink-counter.html