PR655/PR655C 常见问题解答与故障排除 PR655/PR655C 不是您的产品? 搜索结果排序 更新日期 热门程度 3 结果 1. 2018-10-02 "Preventive maintenance is recommended" message appears on the LCD. What does it mean? 2. 2016-07-29 "OK to separate the combined border pattern?" message appears on the LCD. What does it mean? 3. 2016-07-29 "USB media error" message appears on the LCD. What does it mean? 中文 错误信息 常见问题解答与故障排除