diff --git a/app/controllers/oqs/edit_controller.rb b/app/controllers/oqs/edit_controller.rb
index 08ce6709..53a6bf53 100755
--- a/app/controllers/oqs/edit_controller.rb
+++ b/app/controllers/oqs/edit_controller.rb
@@ -25,7 +25,7 @@ class Oqs::EditController < BaseOqsController
       order_slim_pdf = Lookup.collection_of("order_slim_pdf") #order_slim_pdf
       
       unique_code="OrderItemPdf"
-      if !order_slim_pdf.nil?
+      if !order_slim_pdf.empty?
         if order_slim_pdf[0][1] == '1'
           unique_code="OrderItemSlimPdf"
         end
diff --git a/app/controllers/oqs/print_controller.rb b/app/controllers/oqs/print_controller.rb
index 6f3afbd5..2007934c 100755
--- a/app/controllers/oqs/print_controller.rb
+++ b/app/controllers/oqs/print_controller.rb
@@ -4,7 +4,8 @@ class Oqs::PrintController < ApplicationController
     if ENV["SERVER_MODE"] != "cloud" #no print in cloud server
       order_slim_pdf = Lookup.collection_of("order_slim_pdf") #order_slim_pdf
       unique_code="OrderItemPdf"
-      if !order_slim_pdf.nil?
+      
+      if !order_slim_pdf.empty?
         if order_slim_pdf[0][1] == '1'
           unique_code="OrderItemSlimPdf"
         end
@@ -40,7 +41,7 @@ class Oqs::PrintController < ApplicationController
     if ENV["SERVER_MODE"] != "cloud" #no print in cloud server
       order_slim_pdf = Lookup.collection_of("order_slim_pdf") #order_slim_pdf
       unique_code="OrderSummaryPdf"
-      if !order_slim_pdf.nil?
+      if !order_slim_pdf.empty?
         if order_slim_pdf[0][1] == '1'
           unique_code="OrderSummarySlimPdf"
         end
diff --git a/app/models/order_queue_station.rb b/app/models/order_queue_station.rb
index fee3f9ea..6f2fb04c 100755
--- a/app/models/order_queue_station.rb
+++ b/app/models/order_queue_station.rb
@@ -104,7 +104,7 @@ class OrderQueueStation < ApplicationRecord
   def print_slip(oqs, order, order_items)
     order_slim_pdf = Lookup.collection_of("order_slim_pdf") #order_slim_pdf  
     unique_code="OrderSummaryPdf"
-    if !order_slim_pdf.nil?
+    if !order_slim_pdf.empty?
       if order_slim_pdf[0][1] == '1'
         unique_code="OrderSummarySlimPdf"
       end
@@ -126,7 +126,7 @@ class OrderQueueStation < ApplicationRecord
   def print_slip_item(oqs, assigned_item)
     order_slim_pdf = Lookup.collection_of("order_slim_pdf") #order_slim_pdf
     unique_code="OrderItemPdf"
-    if !order_slim_pdf.nil?
+    if !order_slim_pdf.empty?
       if order_slim_pdf[0][1] == '1'
         unique_code="OrderItemSlimPdf"
       end
diff --git a/app/models/printer/order_queue_printer.rb b/app/models/printer/order_queue_printer.rb
index 4a6dd0ed..3bd2df4c 100755
--- a/app/models/printer/order_queue_printer.rb
+++ b/app/models/printer/order_queue_printer.rb
@@ -18,7 +18,7 @@ class Printer::OrderQueuePrinter < Printer::PrinterWorker
     
     # check for item not to show 
     # if order_item[0].price != 0 
-      if !order_slim_pdf.nil?
+      if !order_slim_pdf.empty?
         if order_slim_pdf[0][1] == '1'
           pdf = OrderItemSlimPdf.new(print_settings,order_item[0], print_status, options, oqs.use_alternate_name)
         else
@@ -67,7 +67,7 @@ class Printer::OrderQueuePrinter < Printer::PrinterWorker
 
         # check for item not to show 
         #if odi.price != 0
-          if !order_slim_pdf.nil?
+          if !order_slim_pdf.empty?
             if order_slim_pdf[0][1] == '1'
               pdf = OrderItemSlimPdf.new(print_settings,odi_item[0], print_status, options, oqs.use_alternate_name)
             else
@@ -91,7 +91,7 @@ class Printer::OrderQueuePrinter < Printer::PrinterWorker
     # For Print Order Summary
     else      
       filename = "tmp/order_summary_#{order_id}" + ".pdf"
-      if !order_slim_pdf.nil?
+      if !order_slim_pdf.empty?
         if order_slim_pdf[0][1] == '1'
           pdf = OrderSummarySlimPdf.new(print_settings,order, print_status, order_items, oqs.use_alternate_name)
         else
@@ -134,7 +134,7 @@ class Printer::OrderQueuePrinter < Printer::PrinterWorker
 
         # check for item not to show 
         #if odi.price != 0
-          if !order_slim_pdf.nil?
+          if !order_slim_pdf.empty?
             if order_slim_pdf[0][1] == '1'
               pdf = OrderItemSlimPdf.new(print_settings,odi, print_status, options,oqs.use_alternate_name)             
             else
@@ -161,7 +161,7 @@ class Printer::OrderQueuePrinter < Printer::PrinterWorker
     # For Print Order Summary
     else      
       filename = "tmp/booking_summary_#{booking_id}" + ".pdf"   
-      if !order_slim_pdf.nil?
+      if !order_slim_pdf.empty?
         if order_slim_pdf[0][1] == '1'   
           pdf = OrderSummarySlimPdf.new(print_settings,order, print_status,oqs.use_alternate_name)
         else
diff --git a/app/models/printer/receipt_printer.rb b/app/models/printer/receipt_printer.rb
index ec7ad601..a1375204 100755
--- a/app/models/printer/receipt_printer.rb
+++ b/app/models/printer/receipt_printer.rb
@@ -6,7 +6,7 @@ class Printer::ReceiptPrinter < Printer::PrinterWorker
     #Print
     order_slim_pdf = Lookup.collection_of("order_slim_pdf") #order_slim_pdf
     pdf = OrderItemPdf.new
-    if !order_slim_pdf.nil?
+    if !order_slim_pdf.empty?
       if order_slim_pdf[0][1] == '1'
         pdf = OrderItemSlimPdf.new
       end
@@ -22,8 +22,8 @@ class Printer::ReceiptPrinter < Printer::PrinterWorker
     filename = "tmp/order_summary_#{booking_id}" + ".pdf"
     order_slim_pdf = Lookup.collection_of("order_slim_pdf") #order_slim_pdf
     pdf = OrderSummaryPdf.new
-    if !order_slim_pdf.nil?
-      if order_slim_pdf[1] == '1'
+    if !order_slim_pdf.empty?
+      if order_slim_pdf[0][1] == '1'
         pdf = OrderSummarySlimPdf.new
       end
     end
@@ -39,8 +39,8 @@ class Printer::ReceiptPrinter < Printer::PrinterWorker
     order_slim_pdf = Lookup.collection_of("order_slim_pdf") #order_slim_pdf
     filename = "tmp/order_summary_#{booking_id}" + ".pdf"
     pdf = OrderSummaryPdf.new
-    if !order_slim_pdf.nil?
-      if order_slim_pdf[1] == '1'
+    if !order_slim_pdf.empty?
+      if order_slim_pdf[0][1] == '1'
         pdf = OrderSummarySlimPdf.new
       end
     end
@@ -56,8 +56,8 @@ class Printer::ReceiptPrinter < Printer::PrinterWorker
     order_slim_pdf = Lookup.collection_of("order_slim_pdf") #order_slim_pdf
     filename = "tmp/order_summary_#{booking_id}" + ".pdf"
     pdf = OrderSummaryPdf.new
-    if !order_slim_pdf.nil?
-      if order_slim_pdf[1] == '1'
+    if !order_slim_pdf.empty?
+      if order_slim_pdf[0][1] == '1'
         pdf = OrderSummarySlimPdf.new
       end
     end
@@ -73,8 +73,8 @@ class Printer::ReceiptPrinter < Printer::PrinterWorker
     order_slim_pdf = Lookup.collection_of("order_slim_pdf") #order_slim_pdf
     filename = "tmp/order_summary_#{booking_id}" + ".pdf"
     pdf = OrderSummaryPdf.new
-    if !order_slim_pdf.nil?
-      if order_slim_pdf[1] == '1'
+    if !order_slim_pdf.empty?
+      if order_slim_pdf[0][1] == '1'
         pdf = OrderSummarySlimPdf.new
       end
     end
@@ -90,8 +90,8 @@ class Printer::ReceiptPrinter < Printer::PrinterWorker
     order_slim_pdf = Lookup.collection_of("order_slim_pdf") #order_slim_pdf
     filename = "tmp/order_summary_#{booking_id}" + ".pdf"
     pdf = OrderSummaryPdf.new
-    if !order_slim_pdf.nil?
-      if order_slim_pdf[1] == '1'
+    if !order_slim_pdf.empty?
+      if order_slim_pdf[0][1] == '1'
         pdf = OrderSummarySlimPdf.new
       end
     end