... chip of the main board, when installing the print head,After the installation, please type a file of 5 ... ribbon rack. This will let the needle of the head have a period of adjustment. We hope you will ... , Ink Cartridge, Printer Ribbon and etc. Spare parts: Print Head, Upper Fuser Roller, Lower Fuser Roller, Fuser Film Sleeve, ... Board, Power Board, Chip and etc. Welcome to contact us for more details.