https://global.pantum.com/global/wp-content/uploads/2016/01/Pantum-M6200-M6500-M6550-M6600-MS6000-Series-User-Guide-en-V1-5.pdf
https://global.pantum.com/global/wp-content/uploads/2016/01/Pantum-M6200-M6500-M6550-M6600-MS6000-Series-User-Guide-en-V1-5.pdf