It's upstairs. The print head of bar code printer cannot be maintained in China. When the needle is broken, it can only be replaced, so customers will generally be told that the print head is a disposable consumable. If you buy a new one, you should pay attention to the barcode printers of Zebra 105SL, which are divided into 203dpi and 300dpi. Don't buy it wrong. If it is wrong, it can't be used. It depends on the resolution. On the back of the printer, there is a bar code consisting of three broken numbers. See if the middle section is 2009 or 3009. If it is 2009, it means 203dpi, and 3009 means 300dpi. Www.ausense.com is provided by Qingdao Aixun barcode technical team.