The Canon Service Tool V.3900 (sometimes written as ST-v3900) is a proprietary software utility designed by Canon for authorized service centers. Unlike the standard printer drivers or the My Printer software for end-users, the Service Tool operates at a firmware level. Its primary function is to access the printer’s EEPROM (Electrically Erasable Programmable Read-Only Memory) to reset internal counters.
: Reach out to Canon's support or your regional Canon service center. They can provide you with the necessary tools and information.
Allows you to read or print the printer's internal data log. Canon Service Tool V.3900 Download
Due to its proprietary nature, the V3900 tool is . It is distributed through third-party technician forums. Search for "Canon Service Tool V3900" on trusted printer repair communities or hardware service portals.
You may need to temporarily disable your antivirus software, as it might flag the service tool as a false positive. How to Enter Service Mode (Mandatory): The Canon Service Tool V
The V.3900 tool is highly effective, though it primarily supports printers manufactured around 2010–2014. Supported models often include: Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. MG Series: Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. MP Series: Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. iX Series: Go to product viewer dialog for this item. Go to product viewer dialog for this item. Pro Series: PRO9000
Locate the Clear Waste Ink Counter section. Next to Absorber , select Main from the drop-down menu. : Reach out to Canon's support or your
Unplug all other USB printers and scanners before opening the tool.
The software interface will load. If your printer is properly in Service Mode, the buttons in the tool will be clickable (not grayed out).
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