I purchased this about a year ago on Mercari. I used it about 100 times and then stored it indoors in its box. There are marks on the outer box from ballpoint pen test writing. The following is the description from the seller on Mercari. Epson Scanner DS-310 (Sheet-feed/A4 Duplex) Product Information ・List Price: 15,400 yen ・Dimensions: Width 29cm x Depth 9cm x Height 5cm ・Speed: 50 pages/minute ・Durability: 200,000 scans (Used for about 2,000 scans) ・Supported OS: Windows 11, 10, 8, 7, Vista, XP (Drivers can be downloaded for free online) Condition ・All included items are present. ・Warranty has expired. ・Used for about 2,000 scans over one week.