Question Printing issues

[Zahid Makda]

I have a HP MFP M281fsw laserjet colour printer.
Recently I've had some issues when printing.
1) I get lots of these blue dots all over the page, even when I print in only black. I also get a few yellow dots.
2) the page gets a greying tone to it.
I've attached an image for better understanding.

Please, any help would be useful.

Attachment: Printed with dots

 

[KingLoki]

When did the problem start?
- Settings change?
- Windows driver/system update
- Disconnect/Re-connect
- Cable
etc....??