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4 cooling flow for usb connection – Brother RJ-4030 User Manual

Page 41

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Raster Command Reference

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6. Flow Charts

6.4 Cooling flow for USB connection

Computer (host)

Printer

If there are no
problems with the
printer status
(media, etc.), the
data is transmitted.
If there is a
problem, an error
appears.

The status of the printer
(media, etc.) is checked
and a response is sent.

Data received.

Beginning printing
without waiting for a
print command

Printing

Displaying sending

The printer is initialized.

Status

(Notification:

“Cooling (started)”)

Returned

“NAK” from

cooling

Repeating reading of
maximum and
transmission timeout
times. If the
transmission timeout is
exceeded, reading,
and displaying the
cooling status if a high-
temperature error is
returned.

Failed

Status (Notification: “Cooling (finished)”)

Resuming printing

Continuing reading.
0 packets are returned
while cooling.

0 packet

When cooling is finished,
Notification:

“Cooling

(finished)

” is returned.

READ

READ

Any jobs with errors
remaining in the printer
are cleared.

Status information request

Status (response to status information request)

Sending control codes

Sending raster data

Initialize

Status

(Phase change:

“Printing”)

Sending raster data

Sending raster data

Sending raster data

0 packet

0 packet

0 packet

Sending raster data

Sending raster data

Sending raster data

Cooling occurred

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