On 15 Sep, 08:54, Gordon Henderson wrote:

I did the power meter thing a year or 2 ago - went round the house
meansuring everything. The only real surprise was my HP Colour Laser
printer. In it's "low-power" idle mode it's sucking 30W. That now gets
turned off. Nothing else does because it's not worth the effort.

Be careful with that. Larger copiers and printers have drums that are
damaged by moisture and so contain an anti-condensation heater. It may
also not be sucking 30W continuously, just intermittently.