Apr. 1, 2015. TDK Corporation has announced that its Hong Kong-based HDD head manufacturing wholly owned subsidiary, SAE Magnetics (H.K.) Ltd.
You use a wrench to screw, or unscrew a bolt. A screwdriver is for screws. Either way you turn it left. Some bolts have reverse threads and would turn the other way to unbolt.
If the printer uses a toner or print cartridge remove the cartridge from the printer and, holding it horizontally, shake it from side to side four or five times to redistribute the toner. If one side of the page is always lighter than the other, the printer may be unlevel.