Your scanner is not supported in Windows 10. I think the scanner was first released over fifteen years ago, so I'm not really surprised.
The news might be better as far as the printer is concerned - as Archonar says. There may be a Windows update that provides a driver. The accent is on 'may be' however - you'll need to check at Archonar's link.
Windows 10 should automatically install drivers for the HP Laserjet 1100 printer it did on my computer. Try starting the computer with the printer connected and switched on or right click on start/control panel/devices and printers and select add a new printer.
Thanks everyone, the printer is now working just by restarting the PC. As for the scanner think i'll do what WeeEddie says, seems a shame to chuck it away when it works so well. I don't use it that often so seems the sensible thing to do. Thanks again guys.