Disassemble the machine to see whether a return spring of the cleaning unit has fallen off, and whether the gear is worn incorrectly.Changsha Gaoqiao New World computer technology, professional electricity[Detailed]
The official website driver download is very slow, it takes several hours.The website provided in the manual has never been accessible by the computer.The paper in the document feeder must have a certain area, so that both sides can be completely jammed, otherwise the paper feed will be biased, causing a paper jam.Duplex printing is supported, but duplex scanning is not supported.Networking is a bit weak, and can only be under the same route.Other functions are OK.It's average