function getPrintersListsForPages(pageNumber){
    const baseUrl = "http://www.aniwaa.fr/comparatif/imprimantes-3d/?page=";
    var promises = preparePromises(baseUrl, pageNumber);
    return Q.allSettled(promises)
        .then(prepareResults);
}

function preparePromises(baseUrl, pageNumber) {
    var promises = [];
    for(var i=1; i<=pageNumber; i++){
        promises.push(getPrintersListForPage(baseUrl+i));
    }
    return promises
}

function prepareResults(results) {
    var allResults = [];
    results.forEach(function (result) {
        if (result.state === "fulfilled") {
            allResults.push(result.value)
        } else {
            console.log("Error : "+JSON.stringify(result));
            throw new Error("bullshit happened");
        }
    });
    return allResults;
}