Eventually, the pad saturates. The printer tracks an internal counter for every drop of waste ink. Once that counter hits a factory-set limit (usually around 7,000 to 15,000 cleaning cycles), the printer triggers an error code—typically or 5B01 .
Replace the pads (a messy, labor-intensive process) and reset the counter via their proprietary software. This costs $100-$200, often more than the printer is worth. Canon Printer Service Tool V3600
Enter the . This piece of software, shrouded in mystery and often whispered about on tech forums, is a powerful utility that can resurrect your printer. But what exactly is version V3600? Is it safe? And how do you use it without bricking your device? Eventually, the pad saturates