Model-specific reset guide
Canon imagePROGRAF PRO-300 Ink Absorber Full Reset
If Canon imagePROGRAF PRO-300 displays an ink absorber full or service-required warning, the stored waste ink counter may have reached its limit. This guide covers service mode, USB preparation and the reset itself.
What the Canon imagePROGRAF PRO-300 service message means
Cleaning operations send unused ink into absorber pads inside the printer. Canon imagePROGRAF PRO-300 estimates their usage with an electronic counter and can lock printing when that value reaches its limit.
Wic Reset Connect is designed to reset the compatible counter in Canon imagePROGRAF PRO-300. The physical waste ink system should still be inspected and maintained when necessary.
How to enter service mode on Canon imagePROGRAF PRO-300
- Turn the printer off.
- Press and hold Stop/Reset.
- While holding Stop/Reset, press and hold Power.
- Release Stop/Reset but keep holding Power.
- Press and release Stop/Reset 6 times.
- Wait briefly, then release Power. The power indicator should remain steadily lit.
Reset the counter in Canon imagePROGRAF PRO-300
Work through the sequence without rushing. Incorrect button timing or a blinking power light means the printer is not ready for the counter reset.
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Prepare the printer
Resolve other errors, confirm a steady power light and enter service mode using the sequence above.
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Connect directly by USB
Connect Canon imagePROGRAF PRO-300 to a Windows 7, 8, 10 or 11 computer without Wi-Fi or a USB hub.
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Start Wic Reset Connect
Run the program as Administrator and wait until the Canon service-mode device is detected.
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Enter the key and reset
Enter the purchased key, select Reset and keep the printer connected until confirmation appears.
If Canon imagePROGRAF PRO-300 is not detected
- Repeat the button sequence at a steady pace; releasing Power too early is a common reason service mode fails.
- Close Canon maintenance utilities and clear paused print jobs before opening Wic Reset Connect.
- If the power light blinks, resolve the displayed cartridge, paper or mechanical error before trying service mode again.
- Connect Canon imagePROGRAF PRO-300 directly to the computer and try another data-capable USB cable or port.
Canon imagePROGRAF PRO-300 reset FAQ
How many times should I press Stop/Reset?
For Canon imagePROGRAF PRO-300, use 6 Stop/Reset presses in the sequence shown on this page.
Does the reset clean the ink absorber?
No. It resets the stored counter. Inspect, clean or replace the absorber pads when their physical condition requires maintenance.
Does Canon imagePROGRAF PRO-300 require service mode?
Yes. The printer must expose its maintenance interface before the counter can be reset with Wic Reset Connect.
Restore Canon imagePROGRAF PRO-300
Wic Reset Connect combines a guided reset with support if Canon imagePROGRAF PRO-300 does not respond as expected.