: Includes test print patterns and nozzle cleaning routines beyond what is available in standard consumer software.
While the tool resets the counter, it does not physically clean the ink pads. If your printer is very old, the ink might eventually overflow. It is best practice to physically replace or clean the ink absorber sponges if you know how to disassemble the printer. Troubleshooting: What to Do If It Doesn't Work
Extract the downloaded Service Tool v4905 files. Right-click ServiceTool_4905.exe and select . Step 2: Test Communication
Canon printers count every drop of ink that is purged during cleaning cycles. This waste ink is absorbed by foam pads inside the printer. The printer has a predetermined counter (usually around 7,000 to 15,000 purge cycles). Once reached, the printer locks up with an error message like:
Before using this tool, you should be aware of the following important limitations and risks: canon service tool 4905
While still holding the Power button, .
. This usually involves a specific sequence of button presses (such as holding the Stop/Reset button while powering on). However, using the Service Tool carries significant risks: Firmware Bricking
Unplug the USB cable if desired, wait 10 seconds, and press the button to turn the printer back on normally.
: Generates detailed status reports including the current page count and firmware version. Compatibility and Usage : Includes test print patterns and nozzle cleaning
The software cannot communicate with the printer firmware.
Close the Canon Service Tool V4905 application on your computer.
The Canon Service Tool if your printer is turned on normally. You must manually force the hardware into a diagnostic state known as Service Mode . Follow these steps precisely:
: Allows users to read and write EEPROM data or print maintenance reports. It is best practice to physically replace or
Reading and printing internal printer data, such as page counts and error history, for diagnostic purposes.
Using leaked or modified service utilities carries inherent risks to your hardware.
: This tool is intended for authorized technicians. Improper use can lead to device damage or void your warranty. for a specific Canon printer model? Service Tool Canon - Canon, Inc. Software Informer. 12-Apr-2026 —