TD-4550DNWB

FAQs & Troubleshooting

What do the indicator lights mean?

The indicators light and flash to indicate your printer's status.

The symbols used in this FAQ explain the meaning of the different indicator colors and patterns:

/ /	Indicator is lit in the color shown
/ /	Indicator is flashing in the color shown
	Indicator can be off, lit, or flashing in any color
	Indicator is off

Power LED	Roll LED	Status LED	LCD message	Condition	Solution
			-	Power is Off.	-
			-	The Roll Compartment Cover is open.	Close the Roll Compartment Cover until it locks into place.
			-	Feeding mode	-
				Printing mode
				Cutting mode
			-	Idle mode
			Mass Storage Mode	Mass storage mode
			Working...	Detecting the paper size
		(Once for 2 seconds)	Receiving	Receiving data
		(Once for 2 seconds)	Receiving	Transferring data
		(Once for 1 second)	Canceling	Canceling the print job
		(Once for 3 seconds)	Cancel Printing: Power Key Resume Printing: Any Other Key	Printing is paused.	Press the Power Button ( ) while printing is paused to cancel the print job. Press any button except for the Power Button ( ), or while printing is paused to resume printing.
			Cooling	Cooling mode	If the orange light flashes at 0.5 second intervals, the printer is in Cooling mode. Wait until the Status LED stops flashing.
			Cover Open	Cover open error	Close the Roll Compartment Cover correctly.
			Communication cmd Error	Communication error	A command outside the specifications or corrupted data was transferred. Reconfirm the command and data, and then send them again.
			WPS Timeout	Access point searching error	The access point could not be found. Try connecting again. An access point for establishing a connection could not be specified. Confirm the WPS setting environment (distance between the access point and the printer, presence of obstructions, and so on) for the access point, and then configure the WPS settings for the printer again.
			Incorrect WLAN settings	Access point connection error	If you are using two or more access points, reduce the number of access points to one, and then connect the printer again.
			Incorrect WLAN settings	Access point setting error	Set the encryption method of the access point to a method other than WEP, and configure the wireless LAN settings using WPS. For more information about setting the encryption method of the access point, see the instructions provided with your access point.
			Incorrect BLF/JPEG File	BLF file error	Confirm that your printer supports .blf files, and then transfer the data again. When sending a template as a .blf file, make sure that the model name is correct in file and then transfer the data again.
			Incorrect BLF/JPEG File	JPEG file error	Confirm the size of .jpg files, and then transfer the data again.
			No Records Found	Database search error	This error occurs when printing a template which specifies an incorrect key code, or a non-existent key code in a linked database. Specify a correct key code.
			Incorrect Template Selected	No template error	The template was not transferred. Register the template with the specified number to the printer.
			Data Too Large	Print image deployment error	Print jobs exceeding 118.11 in. (3 m) cannot be printed. Adjust the data and print again. The volume of the data is too large to send. Make sure the data you transfer does not exceed the capacity of the user storage area.
				USB host memory full error	Try transferring the barcode again after a short time.
				ESC/P memory full error	The data size to send with the ESC/P command is too large. Adjust the data and send it again.
			Cannot Update Data	Data update incomplete error (Network)	Confirm the status of the network connection, and then update the data again.
			Cannot Update Data	Data update incomplete error (USB)	Confirm the status of the USB connection, and then update the data again.
			Cannot Feed Roll Paper	Roll end error	The incorrect roll may be set. Set the correct roll. There may not be enough roll remaining. Install a new roll.
				Feed error
				Jam error (TD-4550DNWB(FC) only)	The label may be jammed in the printer. A cut label may be remained on the label receiving stand before printing/feeding/cutting. There may be no label on the label receiving stand before cutting.
(Once for 3 seconds)			Sleeping	Sleep mode	-
(Once for 1 second)			-	Switching to mass storage mode	-
			-	Initializing mode	-
			-	The printer is in System Off mode	-
		(Twice for 2 seconds)	Mass Storage Error	Mass storage error	The file system becomes corrupted or a file is copied while a mass storage file is being processed. Turn off the printer and then turn it on again.
			Cutter Error	Cutter error	Do not open the Roll Compartment Cover when the cutter is operating. To clear this error, press any button.
			Wrong Option Error	Wrong option error	A wrong option is set on the printer. e.g. A peeler option is set on the linerless printer, or a linerless cutter is set on the non-linerless printer.
			Print Head Error	Print head undetected error	Attach the print head correctly.
			Incompatible USB Device	USB host non-compliant device connection error	Replace the USB host because it is not compatible with the printer.
			Incompatible USB Hub	USB hub connection error	Disconnect the USB hub.
		(Three times for 2 seconds)	Incompatible USB Device	USB host excessive power supply error	Replace the USB host because it is not compatible with the printer.
			-	The Printer is in Boot mode.	Turn off the printer and then turn it on again. If the problem still occurs, contact Brother Customer Service.
(Flashes rapidly)	(Flashes rapidly)	(Flashes rapidly)	System Error	System error	Turn off the printer and then turn it on again. If the problem still occurs, contact Brother Customer Service.