Your device catches excess ink in a waste tank with a disposable pad. You will receive the following message at the top of the Envelope Printing screen approximately 30 days before the ink waste tank becomes full:
"Ink waste pad is almost full. If you print often, replace it soon to avoid ink overflow."
Your device is running low on ink.
If the message still appears on the screen:
Before you replace the pad:
Make sure you have a replacement waste pad available and you have the instruction sheet that comes with the pad. The sheet contains the reset code you will need in order to complete the replacement process.
UPDATED: April 27, 2021