Dell 1350 Color User Manual page 245

NOTE:
If you receive no response from the printer or the printer is processing
a job using a USB connection, the message
information
2 Printer Status Image Area
Displays the image of printer condition.
• Estimated Toner Level image
Displays the estimated toner level of each color if the printer is
functioning properly.
Less than 29%
NOTE:
If the utility does not receive a response from the printer, the Unknown
toner image is displayed.
is displayed.
Less than 9% Unknown
Understanding Your Printer Software
Cannot get printer
241