“打印机提示更换硒鼓，可硒鼓是什么东西？” “它和墨盒是一回事吗？” 当打印机屏幕亮起陌生的警告时，许多人都会感到一头雾水。办公室里的激光打印机似乎总藏着一些不为人知的秘密，而硒鼓无疑是其中最核心、也最常引起困惑的部件。它不像喷墨 ...

When the first laser and inkjet printers for PCs arrived in the mid-1980s, they could only print in monochrome, and their respective advantages were obvious. Today, the differences between laser and ...

President Trump said Chinese leader Xi Jinping approved a deal for a group of American investors to take control of TikTok’s U.S. operations. Photo: Mandel Ngan/AFP/Getty Images The future of TikTok ...