diff --git a/htdocs/core/modules/printing/printgcp.modules.php b/htdocs/core/modules/printing/printgcp.modules.php
index e7d34f3666c..4ce1e18b390 100644
--- a/htdocs/core/modules/printing/printgcp.modules.php
+++ b/htdocs/core/modules/printing/printgcp.modules.php
@@ -352,11 +352,13 @@ class printing_printgcp extends PrintingDriver
     /**
      *  List jobs print
      *
-     *  @return void
+     *  @return  int                     0 if OK, >0 if KO
      */
     function list_jobs()
     {
         global $conf, $db, $bc;
+        $error = 0;
+        $html = '';
         // Token storage
         $storage = new DoliStorage($this->db, $this->conf);
         // Setup the credentials for the requests
@@ -374,6 +376,7 @@ class printing_printgcp extends PrintingDriver
         } catch (Exception $e) {
             $this->errors[] = $e->getMessage();
             $token_ok = false;
+            $error++;
         }
         $expire = false;
         // Is token expired or will token expire in the next 30 seconds
@@ -391,6 +394,7 @@ class printing_printgcp extends PrintingDriver
                 $storage->storeAccessToken('Google', $token);
             } catch (Exception $e) {
                 $this->errors[] = $e->getMessage();
+                $error++;
             }
         }
         // Getting Jobs
@@ -399,35 +403,37 @@ class printing_printgcp extends PrintingDriver
             $response = $apiService->request(self::PRINTERS_GET_JOBS);
         } catch (Exception $e) {
             $this->errors[] = $e->getMessage();
-            print '<pre>'.print_r($e->getMessage(),true).'</pre>';
+            $error++;
         }
         $responsedata = json_decode($response, true);
-        //print '<pre>'.print_r($responsedata,true).'</pre>';
-        print '<table width="100%" class="noborder">';
-        print '<tr class="liste_titre">';
-        print "<td>Id</td>";
-        print "<td>Owner</td>";
-        print "<td>Printer</td>";
-        print "<td>File</td>";
-        print "<td>Status</td>";
-        print "<td>Cancel</td>";
-        print "</tr>\n";
+        //$html .= '<pre>'.print_r($responsedata,true).'</pre>';
+        $html .= '<table width="100%" class="noborder">';
+        $html .= '<tr class="liste_titre">';
+        $html .= "<td>Id</td>";
+        $html .= "<td>Owner</td>";
+        $html .= '<td>Printer</td>';
+        $html .= '<td>File</td>';
+        $html .= '<td>Status</td>';
+        $html .= '<td>Cancel</td>';
+        $html .= '</tr>'."\n";
         $var = True;
         $jobs = $responsedata['jobs'];
-        //print '<pre>'.print_r($jobs['0'],true).'</pre>';
+        //$html .= '<pre>'.print_r($jobs['0'],true).'</pre>';
         foreach ($jobs as $value )
         {
-            $var=!$var;
-            print "<tr ".$bc[$var].">";
-            print '<td>'.$value['id'].'</td>';
-            print '<td>'.$value['ownerId'].'</td>';
-            print '<td>'.$value['printerName'].'</td>';
-            print '<td>'.$value['title'].'</td>';
-            print '<td>'.$value['status'].'</td>';
-            print '<td>&nbsp;</td>';
-            print '</tr>';
+            $var = !$var;
+            $html .= '<tr '.$bc[$var].'>';
+            $html .= '<td>'.$value['id'].'</td>';
+            $html .= '<td>'.$value['ownerId'].'</td>';
+            $html .= '<td>'.$value['printerName'].'</td>';
+            $html .= '<td>'.$value['title'].'</td>';
+            $html .= '<td>'.$value['status'].'</td>';
+            $html .= '<td>&nbsp;</td>';
+            $html .= '</tr>';
         }
-        print "</table>";
+        $html .= '</table>';
+        $this->resprint = $html;
+        return $error;
     }
 
 }
diff --git a/htdocs/core/modules/printing/printipp.modules.php b/htdocs/core/modules/printing/printipp.modules.php
index 56cd4c3b2b6..6e8ad305339 100644
--- a/htdocs/core/modules/printing/printipp.modules.php
+++ b/htdocs/core/modules/printing/printipp.modules.php
@@ -228,13 +228,15 @@ class printing_printipp extends PrintingDriver
     /**
      *  List jobs print
      *
-     * @param   string      $module     module
+     *  @param   string      $module     module
      *
-     *  @return void
+     *  @return  int                     0 if OK, >0 if KO
      */
     function list_jobs($module)
     {
         global $conf, $db, $bc;
+        $error = 0;
+        $html = '';
         include_once DOL_DOCUMENT_ROOT.'/includes/printipp/CupsPrintIPP.php';
         $ipp = new CupsPrintIPP();
         $ipp->setLog(DOL_DATA_ROOT.'/dolibarr_printipp.log','file',3); // logging very verbose
@@ -259,32 +261,39 @@ class printing_printipp extends PrintingDriver
             }
         }
         // Getting Jobs
-        $ipp->getJobs(false,0,'completed',false);
-        print '<table width="100%" class="noborder">';
-        print '<tr class="liste_titre">';
-        print "<td>Id</td>";
-        print "<td>Owner</td>";
-        print "<td>Printer</td>";
-        print "<td>File</td>";
-        print "<td>Status</td>";
-        print "<td>Cancel</td>";
-        print "</tr>\n";
+        try {
+            $ipp->getJobs(false,0,'completed',false);
+        } catch (Exception $e) {
+            $this->errors[] = $e->getMessage();
+            $error++;
+        }
+        $html .= '<table width="100%" class="noborder">';
+        $html .= '<tr class="liste_titre">';
+        $html .= '<td>Id</td>';
+        $html .= '<td>Owner</td>';
+        $html .= '<td>Printer</td>';
+        $html .= '<td>File</td>';
+        $html .= '<td>Status</td>';
+        $html .= '<td>Cancel</td>';
+        $html .= '</tr>'."\n";
         $jobs = $ipp->jobs_attributes;
         $var = True;
-        //print '<pre>'.print_r($jobs,true).'</pre>';
+        //$html .= '<pre>'.print_r($jobs,true).'</pre>';
         foreach ($jobs as $value )
         {
-            $var=!$var;
-            print "<tr ".$bc[$var].">";
-            print '<td>'.$value->job_id->_value0.'</td>';
-            print '<td>'.$value->job_originating_user_name->_value0.'</td>';
-            print '<td>'.$value->printer_uri->_value0.'</td>';
-            print '<td>'.$value->job_name->_value0.'</td>';
-            print '<td>'.$value->job_state->_value0.'</td>';
-            print '<td>'.$value->job_uri->_value0.'</td>';
-            print '</tr>';
+            $var = !$var;
+            $html .= '<tr '.$bc[$var].'>';
+            $html .= '<td>'.$value->job_id->_value0.'</td>';
+            $html .= '<td>'.$value->job_originating_user_name->_value0.'</td>';
+            $html .= '<td>'.$value->printer_uri->_value0.'</td>';
+            $html .= '<td>'.$value->job_name->_value0.'</td>';
+            $html .= '<td>'.$value->job_state->_value0.'</td>';
+            $html .= '<td>'.$value->job_uri->_value0.'</td>';
+            $html .= '</tr>';
         }
-        print "</table>";
+        $html .= "</table>";
+        $this->resprint = $html;
+        return $error;
     }
 
 }
diff --git a/htdocs/printing/index.php b/htdocs/printing/index.php
index 2bee135ca44..1a1b038d47f 100644
--- a/htdocs/printing/index.php
+++ b/htdocs/printing/index.php
@@ -39,7 +39,11 @@ foreach ($result as $driver) {
     $printer = new $classname($db);
     if ($conf->global->{$printer->active}) {
         //$printer->list_jobs('commande');
-        $printer->list_jobs();
+        if ($printer->list_jobs()==0) {
+            print $printer->resprint;
+        } else {
+            setEventMessages($printer->error, $printer->errors, 'errors');
+        }
     }
 }