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The EEPROM or mainboard of the printer has entered a permanent lock state.

Release the Stop button while continuing to hold Power, then press the Stop button exactly .

Select a different absorber option (e.g., Platen instead of Main) or check if your model requires a different software version. Software Freezes / Not Responding Meaning: Communication breakdown over the USB channel.

In some cases, it is used to adjust the printer’s regional settings to accommodate different ink cartridge types. Operational Requirements: Service Mode

: Note that certain "disposable" or entry-level models (e.g., MG24xx, MG25xx, IP28xx series) generally cannot be reset via software and require physical hardware replacement or chip reprogramming. How to Use Canon Service Tool V5204

MG2120, MG2220, MG2570, MG3150, MG3550, MG5320, MG5450, etc. Pixma MX Series: MX395, MX475, MX495, MX535, etc. Pixma IP Series: iP2770, iP2870, iP7250.

If you need a shorter version for a quick message (e.g., to a technician), try:

When the counter reaches 100%, the printer locks itself down to prevent ink from leaking onto your desk. Version v5204 is highly sought after because it supports a vast range of Canon Pixma G-series (megatank), MG-series, and MX-series models, fixing software-locked bricked states instantly. Key Features of Version v5204

Before you can use the software, your printer must be in a state where it can accept raw technical commands. This is known as . If you open the software while your printer is turned on normally, the tool will freeze, throw an "Error Code: 006", or fail to detect the device entirely. Phase 1: Putting the Printer into Service Mode

The most vital rule is: Using a too-old tool can permanently lock the service mode on your printer. This renders it impossible for any service tool to communicate with it in the future, often meaning the printer becomes electronic waste when the waste ink pads inevitably fill up. Models to be extremely cautious with include:

If the green light stays solid, your printer is successfully in Service Mode. Your computer will likely detect a "New Hardware Found" notification. Step-by-Step Guide to Resetting Waste Ink Counters

The is a specialized utility used primarily by technicians to reset the "Waste Ink Absorber" counter on Canon PIXMA and PRO series printers. This version is particularly notable for its compatibility with professional-grade models like the Pro-10 and Pro-100 . Key Functions

The (often referred to as ST5204) is a specialized application designed for technicians and advanced users to perform maintenance on Canon inkjet printers, particularly the PIXMA series.

Turn off the printer completely, but leave the power cord plugged into the wall.

Canon Service Tool v5204 (ST v5204) is a Windows-based maintenance/reset utility widely circulated in repair communities since about mid-2018. It’s used to place supported Canon inkjet printers into service mode, read/write EEPROM, reset waste-ink (absorber) counters, run various maintenance operations (cleaning cycles, platen/chassis movements), and dump or restore firmware-related values. The tool is not an official consumer download from Canon; distributions are typically packaged and redistributed by third parties, sold on small webshops, shared on forums, or hosted on file-sharing links.

If you are dealing with a specific error on your machine, let me know the you own and the current error code showing on your screen. I can help you confirm if this version is the right match. Share public link

(often flagged by error codes like 5B00 or P07), which prevents the printer from operating once the internal felt pads are technically "full". Core Functions Absorber Reset: Clears the "ink absorber full" error. EEPROM Operations:

: Allows reading, saving, and writing internal motherboard data.