Genicom GEK 00031B Programmer's Manual page 163

DECRFS
GEK-00029A
Request Font Status : Requests a status report of the fonts available
for printing, the memory available for loading forms and logos, or both.
The Ps parameters are defined as:
0 Send both reports (default)
1 Send status of ROM fonts
2 Send amount of RAM available for forms and logos.
Discussion: The reply to a DECRFS with a Ps parameter of 1 will not
contain an ID string in this implementation. The nnn within the reply
to a DECRFS with a Ps parameter of 2 represents decimal number
indicating the number of bytes of RAM available for storing forms and
logos.
Replies:
Reply with Ps = 1:
Reply with Ps = 2:
Reply with Ps = 0:
Decimal: 155 Ps 59 Ps 34 123
Hex: 9B PsH 3B PsH 22 7B
BASIC: CHR$(155);CHR$(Ps);CHR$(59);CHR$(Ps);CHR$(34);
CHR$(123);
This command works only when the printer is connected to the
host through the serial interface.
<DCS>1"{ <ST>
90 31 22 7B 9C
<DCS>2"(nnn) <ST>
90 32 22 (nnn) 9C
<DCS>1"{ <ST><DCS>2"(nnn) <ST>
90 31 22 7B 9C 90 32 22 (nnn) 9C
NOTE
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5000 Series Programmer's Manual