..

Handler/Project/Device/SATOPrinterAPI.cs

@@ -62,7 +62,7 @@ namespace Project.Device
                 _isopen = true;
                 return _isopen;
             }
-            catch { _isopen = false; return false; }
+            catch(Exception ex) { _isopen = false; return false; }
 
         }
         private string ControlCharReplace(string data)
@@ -219,7 +219,7 @@ namespace Project.Device
         //	PUB.log.Add($"SATO Recv : " + e.StrValue);
         //}
 
-        public Boolean TestPrint(Boolean drawbox, string manu = "", string mfgdate = "")
+        public (Boolean result, string errmessage) TestPrint(Boolean drawbox, string manu = "", string mfgdate = "")
         {
             var dtstr = DateTime.Now.ToShortDateString();
             var printcode = "103077807;Z577603504;105-35282-1105;15000;RC00004A219001W;20210612";
@@ -243,7 +243,7 @@ namespace Project.Device
         }
 
 
-        public Boolean Print(Class.Reel reel, Boolean display1drid, Boolean drawOUtBox)
+        public (Boolean result, string errmessage) Print(Class.Reel reel, Boolean display1drid, Boolean drawOUtBox)
         {
             string prtData;
             prtData = makeZPL_210908(reel, drawOUtBox, out qrData);
@@ -251,19 +251,18 @@ namespace Project.Device
             return Print(prtData);
         }
 
-        public bool Print(string _zpl)
+        public (Boolean result, string errmessage) Print(string _zpl)
         {
             this.LastPrintZPL = _zpl;
-            //if (this.IsOpen == false) return false;
             try
             {
                 byte[] cmddata = Utils.StringToByteArray(ControlCharReplace(_zpl));
                 SATOPrinter.Send(cmddata);
-                return true;
+                return (true,"");
             }
             catch (Exception ex)
             {
-                return false;
+                return (false,ex.Message);
             }
         }
 

Handler/Project/Device/_CONNECTION.cs

@@ -231,7 +231,7 @@ namespace Project
                                 }
                                 catch (Exception ex)
                                 {
-
+                                    PUB.log.AddE($"Printer(L) {ex.Message}");
                                 }
                             }
                             else
@@ -260,7 +260,9 @@ namespace Project
                                     PUB.PrinterR.Open();
                                     PrintRConTime = DateTime.Now;
                                 }
-                                catch (Exception ex) { }
+                                catch (Exception ex) {
+                                    PUB.log.AddE($"Printer(R) {ex.Message}");
+                                }
                             }
                             else
                             {