IBM TG3 Manual Do Utilizador
Bit
Description
3
Document right home position. Set to 1 when the print head is in the document
right home position.
right home position.
4
Reserved. Always 0.
5
Ribbon cover open. Set to 1 when the ribbon cover is open.
6
Cash receipt print error. Paper cover is open, the customer receipt station is
out of paper, or the cutter is jammed in the closed position.
out of paper, or the cutter is jammed in the closed position.
7 (MSB)
Command reject.
Status byte 2
Bit
Description
0 (LSB)
Document ready. Set to 0 when the document insert station is ready for
printing. This occurs when both document sensors detect the document and the
document has been fed to the first print position.
printing. This occurs when both document sensors detect the document and the
document has been fed to the first print position.
1
Document present under the front sensor. Set to 0 when a document is under
the front document sensor.
the front document sensor.
2
Document present under the top sensor. Set to 0 when a document is under
the top document sensor.
the top document sensor.
3
Reserved. Always equals 1.
4
Print buffer held. Set to 1 when the print buffer is being held. Cleared when
buffer released.
buffer released.
5
Open throat position. Set to 1 when the print head is in the open throat
position.
position.
6
Buffer empty. Set to 1 when no print data and no commands are in the buffer.
7 (MSB)
Buffer Full. Set when only 1K bytes are available in the buffer.
Status byte 3
Bit
Description
0 (LSB)
Memory sector is full.
1
Home error.
2
Document error. The document was not inserted after the document station was
selected, and the wait subsequently timed out.
selected, and the wait subsequently timed out.
3
Flash EPROM load error or MCT load error.
4
Reserved. Always equals 0.
5
User flash storage sector is full.
6
Firmware error. CRC on the firmware failed. The printer is running out of the
boot sector. Only system commands and firmware commands are accepted.
boot sector. Only system commands and firmware commands are accepted.
7 (MSB)
Command complete (“Erase flash EPROM sector” on page 123, “Flip check” on
page 166, and whenever a physical line is printed). Set to 1 when the
command is complete or a physical line is printed.
page 166, and whenever a physical line is printed). Set to 1 when the
command is complete or a physical line is printed.
Status byte 4
Contains the printer engineering code (EC) level with all status messages.
Updated April 2, 2009
Appendix D. EIA-232 programming information
185