Intermec PX4I User Manual
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EasyCoder PX4i User’s Guide (IPL version)
Chapter 6 — Setting Up the Printer
Intermec Standard Protocol
The Intermec Printer Standard Protocol is a half-duplex protocol. All
data transmissions to the printer consist of status inquiry (ENQ), status
dump (VT), or message blocks. Each message block starts with the Start
of Text (STX) character and ends with the End of Text (ETX) character.
Each message block must be 255 characters or less, including the STX
and ETX characters. The printer responds to each status inquiry or
message block with the printer status. The host should check the printer
status before downloading a message block to the printer. ENQ causes
the printer to transmit its highest priority status, while VT instructs the
printer to transmit all status that applies in the order of their priority.
The possible printer status in descending priorities are
Condition Character
Buffer already full
GS
Printhead raised
US
Ribbon fault
US
No label stock
EM
Buffer now full
DC3
Printhead hot
SI
Label at strip pin
FS
Label skipping
DC1
Ready DC1
Printing DC1