21F0

Cause

Cannot print with the current print settings because Force ink tank selection is set to Black only.

What to Do

When Force ink tank selection is set to Black only, you can print on plain paper, hagaki with bordered printing, and envelopes.

• Setting the Ink Usage Control (Windows)
• Setting the Ink Usage Control (macOS)
• Print settings

To ignore the Force ink tank selection setting and print with the current print settings, press the printer's ON button. The printer starts printing.

To print using the Force ink tank selection set to Black only, press the printer's Stop button to cancel printing. Then change the print settings and retry printing.