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My old printer would listen to instructions from Control Panel > Maintenance, but unfortunately this one just gives text instructions to do what it won't respond to. Thanks for the suggestion, though.
I'll give it a go tomorrow and see if it was just in a huff, as suggested. The link you offered, Tony, looks interesting, but I'm not prepared to give my credit card details to a site I'm not sure about. Thanks again, though for your thoughts on this matter.