If you buy via Amazon, it is worth checking prices for items not only for different sellers on amazon.fr but across its other European sites.
One handy way to do this is via comparison sites priceszone.com and maxspar.de (see options at top of homepage on the former, or bottom on the latter for language/country options but these will affect delivery estimates).
For example, an Epsom XP-6105 printer priced at €129.99 on amazon.fr was showing at €91.56 on Amazon’s Spanish site, with postage to France at €13.71.
In our test, priceszone was the more reliable in factoring in delivery costs, though neither site was infallible. Check the actual total price offered to you on Amazon’s own sites before clicking to buy.