One of the most frequent error messages for Brother printers is Error 30 or error printing on brother printer. The error codes 30 and "Unable To Print" signify that the printer cannot print because of a mechanical problem. This error could also be caused by an object stuck in your printers, such as a paper clip or piece of paper.
If your Brother printer stops printing or displays the message "Unable To Print 30", the following steps can be used to fix the problem: Lift the scanner cover with both your hands and look to the left side for the support arm.
Check both the right and left corners and take out any paper scraps or clips that may be jammed in the printer. Turn the printer upside down and remove any jammed paper. After all, objects have been removed from the printer, close the covers to resume printing.