不知何故，我失去了使用三星 SCX-4200 3in1 打印机进行扫描的可能性。使用初始安装时提供的 Linux 驱动程序可以正常打印，但扫描会停滞并失败。
sane-find-scanner 显示：
# sane-find-scanner will now attempt to detect your scanner. If the
# result is different from what you expected, first make sure your
# scanner is powered up and properly connected to your computer.
# No SCSI scanners found. If you expected something different, make sure that
# you have loaded a kernel SCSI driver for your SCSI adapter.
found USB scanner (vendor=0x0bda [Generic], product=0x0129 [USB2.0-CRW]) at libusb:001:004
# Your USB scanner was (probably) detected. It may or may not be supported by
# SANE. Try scanimage -L and read the backend's manpage.
# Not checking for parallel port scanners.
# Most Scanners connected to the parallel port or other proprietary ports
# can't be detected by this program.
另外，当我尝试 scanimage -L 时，显示的是我的网络中的另一台计算机，而不是三星的计算机。
scanimage -L
device `hpaio:/net/Deskjet_3520_series?zc=HPC8CBB850038A' is a Hewlett-Packard Deskjet_3520_series all-in-one
我能做些什么？
谢谢。
答案1
这是一个老问题，但我在 Ubuntu 18.04 中遇到了类似的问题。
我的情况是 USB3。将电缆插入 USB2 输入后，一切正常。
这里已经讨论过这个问题（法语）：https://forum.ubuntu-fr.org/viewtopic.php?id=2023391