Epson TM-U300D Operator's Manual page 34

Table A-1. Character Size, Characters Per Inch, Characters Per Line
( 1) The 7 x 9 font is the default.
*
Example
7 x 9 font
3. Ribbon
Ribbon cassette type:
Color:
Ribbon life:
(In case of using 2-color type)
[Conditions]
Character font:
l
Printing pattern:
l
Temperature:
l
Exclusive ribbon cassette ERC-38
Black and Red, Black, Red
Single-color ribbons [Part No.: ERC-34 (P)
(purple) or ERC-34 (B) (black)] and P-color
ribbon [Part No.: ERC-34(B/R) (black and red)]
are also available. When using these ribbons,
the print color selection command (ESC r) must
not be used.
Black: Approx. 1,500,000 characters
Approx. 750,000 characters
Red:
7 X 9 font (with descenders)
96 ASCII character rolling pattern, continuous
printing
25°C (77°F)
29
Units: mm (inch)