Error Flow For Serial Connection - Brother RJ-4030 Software Manual

6.7 Error flow for serial connection

Computer (host)
If there are no
problems with the
printer status
READ
(media, etc.), the
data is transmitted.
If there is a problem,
an error appears.
Displaying sending
Displaying printing
READ
Phase change
"Printing" received.
Initialize
Status information request
Status (response to status information
request) or an error is displayed
Sending control codes
Sending raster data
Sending a print command (print command with feeding (1A)
for the last page or print command (0C) for other page)
Status
(Phase change: "Printing")
Status ("Error Occurred")
- 40 -
Raster Command Reference
Printer
The printer is
Initialized.
The status of the
printer (media, etc.)
is checked and a
response is sent.
Data received.
Printing
Error occurred
6. Flow Charts