Re: Laserjets and double-voltage don't mix
In the 1970s a mainframe computer was installed on a Scottish customer's site by the manufacturer's engineers. As it was an imported US model they had jury rigged the accompanying step-down transformer.
Overnight the customer's electricians installed the transformer into its permanent position. At power up the next morning it was quickly discovered that the electricians had connected it the wrong way round. Some smoke seems a likely result.