Remember and restore the account last used destination is registered for.

chrome/browser/resources/print_preview/print_preview.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // TODO(rltoscano): Move data/* into print_preview.data namespace
 
 var localStrings = new LocalStrings(templateData);
 
 <include src="component.js"/>
 
@@ skipping 767 matching lines @@
         if ((cr.isMac && e.metaKey && e.altKey && !e.shiftKey && !e.ctrlKey) ||
             (!cr.isMac && e.shiftKey && e.ctrlKey && !e.altKey && !e.metaKey)) {
           this.openSystemPrintDialog_();
           e.preventDefault();
           return;
         }
       }
 
       if (e.keyCode == 13 /*enter*/ &&
           !this.destinationSearch_.getIsVisible() &&
+          this.destinationStore_.selectedDestination &&
           this.printTicketStore_.isTicketValid()) {
         assert(this.uiState_ == PrintPreview.UiState_.READY,
             'Trying to print when not in ready state: ' + this.uiState_);
         var activeElementTag = document.activeElement ?
             document.activeElement.tagName.toUpperCase() : '';
         if (activeElementTag != 'BUTTON' && activeElementTag != 'SELECT') {
           this.printDocumentOrOpenPdfPreview_(false /*isPdfPreview*/);
           e.preventDefault();
         }
         return;
@@ skipping 94 matching lines @@
       this.printIfReady_();
     },
 
     /**
      * Called when a print destination is selected. Shows/hides the "Print with
      * Cloud Print" link in the navbar.
      * @private
      */
     onDestinationSelect_: function() {
       var selectedDest = this.destinationStore_.selectedDestination;
-      setIsVisible($('cloud-print-dialog-link'),
-                   !cr.isChromeOS && !selectedDest.isLocal);
-      if (this.isInKioskAutoPrintMode_) {
+      setIsVisible(
+          $('cloud-print-dialog-link'),
+          selectedDest && !cr.isChromeOS && !selectedDest.isLocal);
+      if (selectedDest && this.isInKioskAutoPrintMode_) {
         this.onPrintButtonClick_();
       }
     },
 
     /**
      * Called when the destination store loads a group of destinations. Shows
      * a promo on Chrome OS if the user has no print destinations promoting
      * Google Cloud Print.
      * @private
      */
@@ skipping 103 matching lines @@
 <include src="search/recent_destination_list.js"/>
 <include src="search/destination_list_item.js"/>
 <include src="search/destination_search.js"/>
 <include src="search/search_box.js"/>
 <include src="search/fedex_tos.js"/>
 
 window.addEventListener('DOMContentLoaded', function() {
   printPreview = new print_preview.PrintPreview();
   printPreview.initialize();
 });