Never perform a Clear EEPROM unless you have a backup of the original dump. Losing serial numbers or print head alignment data can permanently brick the logic board.
You service Canon G7020 or imageRUNNER Advance Gen 5 units. You need Windows 11 compatibility. You have encountered "Memory Allocation Error" in older versions when reading large 64MB EEPROMs.
You're looking for information on Canon Service Tools V5103 new. Here's what I found: canon service tools v5103 new
Strongly discouraged. The risks of malware, bricking, and legal action far outweigh any benefit. Instead:
This usually happens if you try to change the region or modify EEPROM settings that the physical motherboard locks. Stick strictly to the "Clear Ink Counter" tool. Safety and Security Warning Never perform a Clear EEPROM unless you have
Its primary purpose is to address critical system errors (such as the infamous "5B00" Waste Ink Absorber Full error) and enable advanced diagnostics typically reserved for service centers. While a functional and crucial utility, users must understand its operation, associated risks, and the legal and safety implications of using it.
The most common reason for seeking out this tool is to fix the "5B00" error (or similar codes like 5B02, 5B04, 1701, etc.). This error indicates that the printer's internal waste ink absorber pad (which collects ink purged during cleaning cycles) is nearing or has reached its designated capacity. This is a safety mechanism designed to prevent ink from leaking inside your printer. Once this counter fills up, the printer is designed to lock up and stop functioning until the counter is reset and the pads are replaced. You need Windows 11 compatibility
Once your printer is in Service Mode, close any active error windows on your computer and open the software. Extract the downloaded Canon Service Tool v5103 zip file.
Release the Power button. If the light remains steady green, you are in Service Mode.
Clears the printer's memory to factory settings, solving various software-related glitches.
: It is important to note that newer printer models (such as the TS8300 series) may require even more recent versions, such as V5204 or V5306, and using an incompatible version like V5103 can sometimes lock the printer's service mode permanently. Technical Operation and Licensing