Ithaca 150 Programmer's Manual page 71

Programmer's Guide
an [ENQ] were issued. In parallel mode, only one status should be requested. If more than one bit
is active, the resulting status on the paper error (PE) signal will not be defined. The reply to
dynamic responses is the same as for inquire commands. That is, if the cash drawer status is to be
sensed, the PE or ACK/NAK will be the same as for inquire commands.
12/14/99
PcOS Series 150
Rev G
Control Codes
Printer Status Set/Inquire
Page 61