M-S Cash Drawer A794 - Manual (Page 107)

Chapter 6: Programming Information A794 Owner’s Guide
December 1999 102
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 A794 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 (Not Implemented.
Interpreted as Paper Out.) High = Paper Out
Low = Paper Present
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.