While still holding Power, press the Stop/Reset button (or 6 times for some G-series models). Release the Power button.
The tool will process the request. Once finished, turn the printer off and back on to exit Service Mode. The error should be cleared.
Canon Service Tool V5103 Download: The Complete Guide to Resetting Your Printer Canon Service Tool V5103 Download
Rather than fully disabling your antivirus, add the tool's folder or executable file to your antivirus exceptions list.
: Canon does not typically provide this tool directly to consumers; it is intended for authorized service centers. You may find manuals and standard drivers on the Official Canon Support site. While still holding Power, press the Stop/Reset button
Finally, using the V5103 tool voids any remaining manufacturer’s warranty. Canon’s service tools are for authorized technicians only. Unauthorized use is a clear violation of the end-user license agreement. If a user attempts a reset, fails, and then seeks professional help, Canon or any authorized repair center will refuse service, noting the unauthorized software access. The tool can also inadvertently alter critical EEPROM settings, calibrations, and region codes, leading to issues like incorrect ink level reporting, paper size mismatches, or a completely unresponsive device. For an inexperienced user, a simple reset attempt can quickly become a permanent “bricking” of the printer.
One day, a young woman stopped by and asked, “Can that Service Tool really bring something back to life?” She had her own family photos on a damaged disk; she’d lost moments in a corrupt file. Marco booted his sanitized VM, loaded the tool, and ran checks with the same careful rituals he had developed: scansums, virtual isolation, and patience. Not all glitches were fixable, and he told her so plainly. But when the disk’s image finally mounted and the photos flickered onto his screen, the woman’s shoulders dropped. She began to cry—this time, with relief. Once finished, turn the printer off and back
Key features of V5103 include:
Using firmware modification software comes with risks. Avoid these common mistakes to prevent permanently damaging your hardware.
Printhead tracking and recognition errors. Step-by-Step: How to Use Canon Service Tool V5103