Press and (usually a red triangle inside a circle).
Printers are built with physical waste ink pads—essentially thick pieces of foam designed to absorb excess ink during initial setup, printhead cleaning cycles, and borderless printing. To prevent ink from leaking out of the machine and ruining your desk, Canon installs an internal counter that tracks how much ink has been deposited into these pads.
Triggers intensive print head cleaning cycles that are more powerful than standard driver options.
To help you get your printer back up and running smoothly, please let me know:
Your computer's security, your personal data, and your peace of mind are far more valuable. Choose a safe and legal alternative today. If you have further questions, always consult a professional. UPD Download Service Tool V4905 Bagas31
In the humid backroom of a Jakarta electronics market, Malik wiped grease from his glasses. Three months ago, he was a senior firmware engineer at Nusantara Dynamics. Now? He "unjammed" printers and resuscitated dead smartphones for customers who paid in crumpled bills.
The tool's simplicity is also one of its main draws. Many users report it is effective for specific models, though it lacks a modern or user-friendly interface.
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Using an official firmware manipulation tool comes with risks. If done incorrectly, you can permanently damage your hardware. 1. The Physical Pad Reality Press and (usually a red triangle inside a circle)
Genuine UPD Service Tool users receive regular updates, bug fixes, and customer support. Cracked versions are frozen in time—V4905 cracks will never receive security patches or new device support.
Downloading this tool from unofficial sources (like Bagas31 or eBay sellers) carries significant security risks.
, or MG2500 series. Attempting to use it on these models can corrupt the physical EEPROM chip. Step-by-Step Reset Procedure
It's important to check the lists of supported models. The tool's publisher explicitly warns that it cannot be used for the Canon E series or MG24xx series printers. Using it on an unsupported printer could cause further issues. Triggers intensive print head cleaning cycles that are
Repeat the button-press sequence precisely. Ensure the green light is solid. The tool does not support this exact model.
Open the main application executable file named ST_4905.exe .
While still holding the Stop/Reset button, press and . The power LED will light up green.
Open the printer casing to wash and dry the internal foams, or route a small silicone tube from the internal waste ink pump into an external plastic bottle (a "Waste Ink Dot Matrix Box"). 2. Risk of "Bricking" the Motherboard
To use the tool effectively, the printer must first be put into Service Mode Enter Service Mode : With the printer off, hold the Stop/Reset button, then hold