After more than three years of accumulation, sorting and collection of various materials, Mr. Pan Yunhe finally completed the training manual for copier maintenance, which is based on actual combat technology. Since Mr. Pan entered the office equipment maintenance industry from 1992, he has never stopped researching and exploring the maintenance technology of office equipment such as photocopiers, printers and integrated templates. Since 18, he has devoted himself to the research of office equipment maintenance technology and dedicated himself to the vast number of friends in OA industry.