Canon imagePROGRAF TM-300 36" Large-Format Inkjet Printer with L36ei Scanner Kit - Manual (Page 839)

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Cause
The ink tank may be an ink tank that ran out of genuine Canon ink or a counterfeit Canon ink tank.
What to Do
To print, you must replace the ink tank or disable the function for detecting the remaining ink level.
To disable the function for detecting the remaining ink level, press and hold the printer's Stop button for at
least 5 seconds, and then release it.
By this operation, the fact that you have disabled the function for detecting the remaining ink level will be
memorized. Please be advised that Canon shall not be liable for any malfunction or trouble caused by
continuation of printing under the ink out condition or by using refilled ink tanks.
Note
• If the function for detecting the remaining ink level is disabled, the ink tank in gray is displayed on the
touch screen when checking the current ink level.
To report the counterfeit ink tank, access Canon website from the following link.
Report Counterfeit
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