My Brother laser printer gave a "low toner" warning and refused to print. A piece of electric tape over the sensor and I've been printing for literally years s

My Brother laser printer gave a "low toner" warning and refused to print. A piece of electric tape over the sensor and I've been printing for literally years since. Whether the sensor is intentionally set to go off way too early or it's a technical problem, it felt pretty slimy and feels ever-slimier as years go by and I'm still printing without issue.