Setting/Checking Modes; Self-Test Mode - Epson TM-T20II Technical Reference Manual

Setting/Checking Modes

Besides the ordinary print mode, the printer has the following modes to set or check settings of
the printer.

• Self-test Mode

• NV Graphics Information Print Mode
• Receipt Enhancement Information Print Mode
• Software Setting Mode
• Hexadecimal Dumping Mode
Self-test Mode
In the self-test mode, the printer prints the current printer status and a rolling pattern test print
of resident characters.
The current status print includes the following information:
• Control ROM version
• Interface type
• Receive buffer size
• BUSY condition
• Resident fonts
• Print density
• Maintenance counter information (head running length, number of times of autocutting)
• Memory switch settings
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