On some older models, the tool can reset the ink level detection for OEM cartridges (not for chipped cartridges with fixed counters).
Modern Canon consumer inkjet printers (e.g., PIXMA series) include a that collects ink purged during cleaning cycles. The printer tracks the amount of waste ink using a counter stored in EEPROM. When the counter reaches a factory-set limit (e.g., 7% of pad capacity), the printer displays a "5B00" or "5B01" error and locks operation, requiring replacement or resetting. canon service resetter tool
Newer printers (2018+) use encrypted EEPROM access, making most legacy tools ineffective. On some older models, the tool can reset
The tool works by communicating with the printer's firmware and resetting the error codes, allowing the printer to function normally again. It's usually used when the printer's control panel displays an error message, and the user is unable to print or perform any other functions. When the counter reaches a factory-set limit (e
To prevent a literal mess—ink leaking onto a user's desk—Canon installs a digital counter that estimates the saturation level of these pads. Once this counter reaches a specific threshold (often resulting in error codes like or P07 ), the printer "locks" itself. At this stage, the hardware is functionally perfect, but the software refuses to operate. The Canon Service Tool is the "key" required to reset this counter back to zero, effectively telling the printer it has new pads. The Conflict of Accessibility