Epson 8900 Series - Manual (Page 57)

Character Sets and Global Commands 3-26
Selecting Characters Per Inch (cpi)
Escape sequence: ESC DLE P n
Hexadecimal: 1B 10 50 n
This command enables you to access natural pitches of a font that
may not be specifically supported by an emulation. The command
sets pitch according to the variable n, which can range from 30
through 33 hex.
Unless specified otherwise, the emulation’s default HMI is used.
Character pitch commands are effective immediately upon receipt,
thus causing a pitch change within a line.
This command cancels double-wide print mode and compressed print
mode. The values of n for cpi selection are listed in the following
table.
Value of n Hex Value Pitch*
1 30 10
2 31 12
3 32 15
4 33 16.7
*for standard fonts and emulations
Selecting Print Quality
Escape sequence: ESC DLE Q n
Hexadecimal: 1B 10 51 n
This command enables you to access print quality modes not
specifically supported by an emulation. The command selects the
print quality mode according the the variable n, which can range
from 30 through 33 hex.
This command does not affect the forms configuration draft/rapid-
draft setting. However, the fast draft mode setting is valid only in 12
and 15 cpi. If 10 cpi is set, draft mode is selected.