Brother RJ4040-K RuggedJet w/WiFi Battery User Manual page 57

Problem
A data transmission error appears on
your computer.
Labels are jammed or are not ejected
correctly after printing.
The print quality is poor
Solution
 Is the correct port selected?
Check that the correct port is selected.
 Is the printer in cooling mode (the POWER indicator is
flashing in orange)?
Wait until the indicator stops flashing and then try printing
again.
 Is someone printing via the network?
If you try to print while other users are printing large
amounts of data, the printer is unable to accept your print
job until the ongoing printing is finished. In such situations,
execute the print job again after the other jobs are
completed.
 Is there dirt or lint on the roller preventing it from rolling
freely? (See Roller Maintenance uu page 46.)
 Check that the ejection path of the label is not blocked.
Check that the RD Roll is set correctly by removing the RD

Roll and reinstalling.
(See Inserting the RD Roll uu page 5.)
 Ensure that the RD Roll compartment cover is closed
correctly.
Is there dirt or lint on the roller preventing it from rolling freely?
Clean the roller (see Roller Maintenance uu page 46).
Troubleshooting
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