Chapter 6: Programming Information | A794 Owner’s Guide |
Request Alternate Status (parallel printers only)
This command allows the printer to inform the host when the data in the buffer has been processed. When this command is sent to the printer, the printer goes “Busy” until all data which has been sent to the printer 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.
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. | High = Paper Out |
| Interpreted as Paper Out.) | Low = Paper Present |
03 | Paper Out (Default) | High = Paper Out |
|
| Low = Paper Present |
>03 | Ignored, No Change | Printer Does Not Stay BUSY1 |
1PAPER EXHAUST LINE is valid to indicate previously requested status.
Transmit Peripheral Device Status (RS-232C printers only)
Transmits current status of the cash drawers on one byte. If a drawer is not connected, the status will indicate it is closed.
ASCII | ESC u 0 |
Hexadecimal | 1B 75 0 |
Decimal | 27 117 0 |
Value of returned byte
Bit | 1 Signifies | 0 Signifies |
0 | Drawer 1 & 2 Closed | Drawer 1 or 2 Open |
1 | Drawer 1 & 2 Closed | Drawer 1 or 2 Open |
Bits
88 | March 1999 |
