Bit Description
3 Document right home position. Set to 1 when the print head is in the document
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.
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.
1 Documentpresent under the front sensor. Set to 0 when a document is under
the front document sensor.
2 Documentpresent under the top sensor. Set to 0 when a document is under
the top document sensor.
3 Reserved.Always equals 1.
4 Printbuffer held. Set to 1 when the print buffer is being held. Cleared when
buffer released.
5 Openthroat position. Set to 1 when the print head is in the open throat
position.
6 Bufferempty. Set to 1 when no print data and no commands are in the buffer.
7 (MSB) BufferFull. Set when only 1K bytes are available in the buffer.
Status byte 3
Bit Description
0 (LSB) Memory sector is full.
1 Homeerror.
2 Documenterror. The document was not inserted after the document station was
selected, and the wait subsequently timed out.
3 FlashEPROM load error or MCT load error.
4 Reserved.Always equals 0.
5 Userflash storage sector is full.
6 Firmwareerror. CRC on the firmware failed. The printer is running out of the
boot sector.Only system commands and firmware commands are accepted.
7 (MSB) Commandcomplete (“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.
Status byte 4

Contains the printer engineering code (EC) level with all status messages.

Updated April 2, 2009
AppendixD. EIA-232 programming information 185