Troubleshooting Label Printer Problems

If your barcode label printer is not working properly, ensure that

  • the printer labels and ribbon are loaded correctly.

  • the green POWER button on the top of the printer is illuminated. If it is not, press it to reboot the printer. The green light is illuminated when the printer is ready to print. The printer may stop working if it overheats due to excessive use.

  • the print head is completely closed. The print head clicks into place on both sides when it is properly closed, and a green light is illuminated.

  • the printer’s hardware is properly connected. See one of the following topics:

For additional issues and error messages, see the following sections for troubleshooting instructions:

Missing Characters on the Label

Due to limitations in barcode printing and scanning systems, ensure your Product Code and UPC Code meet the following requirements:

Must be 6–12 digits

Must contain only numbers

Must be an even number of digits. Enter leading zeros as needed to ensure an even number

Must be unique among the products in your system

Numbers Printing beyond the Edge of the Label

The barcode labels can accommodate up to 12 numerical characters. If the number entered in the UPC or Product Code field exceeds 12 numerical characters, you must shorten the code so it fits on the label.

Zeros Appended to the Beginning of the Barcode

The SATO barcode label printer requires barcodes to have an even number of digits. If a barcode has an odd number of digits, the printer appends a leading zero to the barcode. The scanner, however, doesn't recognize the barcode with the leading zero as the same barcode without the leading zero. To fix this problem, ensure the codes entered in the UPC or Product Code field contain an even number of digits.