Epson TM-T20II, Техническое справочное руководство

Страница: 22 / 140

22
Printing Specifications
dp i : do t s per in ch
*: whe n t he pr int er pr int s w it h t he s t a n dard pr int de n s it y level a t 25°C {77°F} a n d 24V.
80 mm
width paper printing
58 mm
width paper printing
Printing method Thermal line printing
Dot density 203 × 203 dpi
Paper
width
Standard mode (initial setting) 72.0 mm {2.83"}, 576 dots 52.5 mm {2.07"}, 420 dots
42 column mode 68.3 mm {2.69"}, 546 dots 47.3 mm {1.86"}, 378 dots
Character
spacing
Standard mode
(initial setting)
Font A 0.25 mm {0.0098"} (2 dots)
Font B 0.25 mm {0.0098"} (2 dots)
42 column
mode
Font A 0.38 mm {0.015"} (3 dots) 0.25 mm {0.0098"} (2 dots)
Font B 0.25 mm {0.0098"} (2 dots) 0.25 mm {0.0098"} (2 dots)
Line spacing 3.75 mm {1/5"} (initial setting, programmable by
command)
Maximum print speed* 200 mm/s {7.87"/s}

To change the paper width, you need to install the 58-mm width paper guide plate and to
make the paper width setting with the memory switch. For information about how to
change the paper width, see
"Changing the Paper Width" on page 37 .

The printing speed changes automatically depending on the applied voltage and head
temperature.

The maximum printing speed may not be achieved depending on the type of interface,
the setting of data transmission speed, and the combination of control commands.

If the data transmission speed is slower than the maximum printing speed, the printing
speed may fluctuate and the print result may become shaded and/or dot displacement in
paper feeding may occur.Furthermore, if the data transmission speed is much slower
than the maximum printing speed, intermittent printing will occur.
Especially when using a serial interface, low transmission speed may cause intermittent
printing. It is recommended to transmit data to the printer as quickly as possible.