Canon Service Tool V3800 Portable -

While still holding Stop/Reset, press and hold the Power button. The green power LED will light up.

If you reset a 5B00 error and continue printing hundreds of pages without addressing the physical ink pads, the liquid ink will eventually overflow out of the bottom of the printer chassis. This can ruin your desk, stain carpets, or short-circuit the internal power supply of the printer. canon service tool v3800 portable

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Which (e.g., Windows 10, Windows 11, macOS) are you running? While still holding Stop/Reset, press and hold the

: Includes deeper "Nozzle Checks" and "Test Prints" not available through the standard consumer driver. Prerequisites for Use While still holding Stop/Reset

Before using any version of the Service Tool, always remember to enter Service Mode correctly and, most importantly, to avoid irreversible damage.