User guide

A795 User Guide: Programming Supplement
Chapter 4: Programming commands
75
Transmit peripheral device status (RS-232C printers only)
ASCII ESC u 0
Hexadecimal 1B 75 0
Decimal 27 117 0
Value of returned byte:
Bit 0 Bit 1
1 = Drawer 1 Closed 1 = Drawer 2 Closed
0 = Drawer 1 Open 0 = Drawer 2 Open
Bits 2-7 are not used.
Transmits current status of the cash drawers. One byte is
sent to the host computer. In DTR/DSR protocol, the
printer waits for DSR = SPACE. If a drawer is not
connected, the status will indicate it is closed.
Exceptions
Unlike the A793, that had a dedicated connector and
resultant dedicated status reporting for each cash drawer,
the A795 has a single connector that shares data reporting
from either cash drawer. When either cash drawer is open,
an open status is reported by the printer.
Related information
In TM-T88 emulation, this command is ignored.
Request alternate status (A793 emulation only)
ASCII ESC u n
Hexadecimal 1B 75 n
Decimal 27 117 n
Value and Range of n:
Value of n Function Description
00 Drawer 1 High = Open
Low = Closed or Not
Present
01 Drawer 2 High = Open
Low = Closed or Not
Present
02 Paper Low High = Paper Out
(Not Implemented. Low = Paper Present
Interpreted as
Paper Out.)
03 Paper Out (Default) High = Paper Out
Low = Paper Present
>03 Ignored, No Change Printer Does
Not Stay BUSY
1
1
PAPER EXHAUST LINE is valid to indicate previously
requested status.
This command allows the printer to inform the host when
the data in the buffer has been processed. The PAPER
EXHAUST line shows the status for the cash drawer or
receipt paper as shown in the table.
Status information is limited to what can be sent by the
dedicated lines: BUSY, ACK, PAPER EXHAUST, and
FAULT.