Epson TM-T20III Technical Reference Manual page 44

Print speed
Selectable from levels 1 to 13 (Slow ~ Fast)
Default setting: Level 13
Depending on print conditions, such as print duty, thermal head temperature, and data
transmission speed, print speed is automatically adjusted, which may cause white lines due to
intermittent print (the motor sometimes stops). To avoid this, keep the print speed constant by
setting it lower.
Power supply unit capacity
Selectable from levels 1 to 3
Default setting: Level 3
Paper Width & Print Column
• To change the paper width, you need to install the 58 mm width paper guide plate. (See
"Changing the Paper Width" on page
• Because some parts of the print head and the autocutter contact the platen and they may
become worn out, once you change the paper width from 80 to 58 mm {3.15 to 2.28"} and use
the printer, you cannot change it back to 80 mm {3.15"}.
• 80 mm {3.15"} width paper/48 characters (default setting)
• 80 mm {3.15"} width paper/42 characters
• 58 mm {2.28"} width paper/35 characters
• 58 mm {2.28"} width paper/42 characters
Automatic paper reduction
• Disabled (default setting)
• Recommended setting
• Maximum paper reduction
The table below shows the details of "Recommended setting", and "Maximum paper reduction".
Top margin
Bottom margin
Line spacing
Line break
Barcode height
Space around each character
• No reduction is applied to blank lines that are generated for printing a graphic data.
• Reduced barcodes are not guaranteed to be correctly scanned. Make sure to check whether
they are properly read by a barcode reader that is actually used.
40.)
Recommended setting
Reduced
Reduced
Reduced by 75%
Reduced by 75%
Reduced by 75%
Not reduced
Chapter 3 Advanced Usage
Maximum paper reduction
Reduced
Reduced
Reduced by 75%
Reduced by 75%
Reduced by 75%
Reduced by 75%
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