Section 5: Interface Specifications
5.13 DRIVER PROTOCOL (CONT’D)
Timing Chart — Error Processing
Power O N |
|
|
| Paper End | Head Open | Head Closed | Pressing Start / Stop key | |
Printer side |
|
|
|
|
|
|
|
|
Initial | E N Q | STX · · ETX (1) | E N Q | E NQ | E N Q | EN Q | E NQ | EN |
RD |
|
|
|
|
|
|
|
|
| Status |
| ACK | Status | Status | Status | Status | AC K |
SD
Printer status | Online |
| Offline |
|
| ||
|
|
| |
| R eceive, analyze, edit (1) |
|
|
|
| Print (1) | Print (1) |
|
|
|
Timing Chart — Pause and Restart Processing
Power ON |
| Paper End | Head O pen | Head Closed | Pressing Start / Stop key |
|
Printer side |
|
|
|
|
|
|
EN Q | STX · · ETX (1) | D L1 | D C 1 | E N Q | C AN | E N |
RD |
|
|
|
|
|
|
Status | ACK | ACK | ACK | Status | AC K |
|
SD |
|
|
|
|
|
|
Printer status |
|
| O nline |
|
|
|
|
|
|
|
|
| |
| Receive, analyze, edit (1) |
|
|
|
|
|
|
| Print (1) |
| Print (1) |
|
|
Page | GT Series Operator’s Manual |
