Epson 440 - Manual (Page 110)

EPSON StatusMonitor
The StatusMonitor utility regularly monitors the printer status.
If it detects a printer error, it will inform you with an error
message.
You can also use this utility to check how much ink is
remaining before printing.
To use the StatusMonitor, follow these steps:
Click the EPSON StatusMonitor button in the Utility dialog
box. The following dialog box appears:
The StatusMonitor checks the amount of ink remaining once
when you click the StatusMonitor button on the Utility dialog
box. To update the ink-level information, click the Update
button.
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Easter2 Ref. Guide
Rev.b
A5 size Chapter 6
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6-22 Using the Printer Software for Macintosh