ارجو المساعدة في تقرير طباعة فاتورة

هل الكود التالي في زر الطباعة في الفورم صحيح

عند الطباعة لا يعطي اي شيء ارجو المساعدة

مرفق ريبورت التقرير للفورم

  :invoice.invoice_total := :invoice_datails.total_invoice_text;
       :invoice.invoice_cost := :invoice_datails.total_cost_text;
commit;
declare     
          pl_id ParamList;
              a number :=0;
    b number :=0;
    c number :=0;
           
     BEGIN     
       pl_id := Get_Parameter_List('tempdata');      
       IF NOT Id_Null(pl_id) THEN 
       destroy_Parameter_List( pl_id ); 
       END IF;        
       pl_id := Create_Parameter_List('pl_temp'); 
       Add_Parameter(pl_id,'P',TEXT_PARAMETER,:invoice.invoice_id_2);  
       Add_Parameter(pl_id,'PARAMFORM',TEXT_PARAMETER,'NO');
       Add_Parameter(pl_id,'DESTYPE',text_parameter,'PRINTER');
       Add_Parameter(pl_id,'DESNAME',text_parameter,'hp1515');
     
          Run_Product(REPORTS, 'd:\barnees\rep\invoice.rep', SYNCHRONOUS, RUNTIME, FILESYSTEM, pl_id); 
          if :pay_method = 'Ðãã' then
              Run_Product(REPORTS, 'd:\barnees\rep\invoice.rep', SYNCHRONOUS, RUNTIME, FILESYSTEM, pl_id); 
              end if;
       Destroy_Parameter_List( pl_id );
       -------------------
       -------------------
       
      
       

  select nvl(sum(senf_total_tax),0) into a from invoice_datails where invoice_datails.invoice_id =:invoice.invoice_id
  and 
  invoice_datails.senf_tax=0.04;
    select nvl(sum(senf_total_tax),0) into b from invoice_datails where invoice_datails.invoice_id =:invoice.invoice_id
  and 
  invoice_datails.senf_tax=0.08;
    select nvl(sum(senf_total_tax),0) into c from invoice_datails where invoice_datails.invoice_id =:invoice.invoice_id
  and 
  invoice_datails.senf_tax=0.16;
  :invoice.tax_4_text :=a;
  :invoice.tax_8_text :=b;
  :invoice.tax_16_text :=c;
  commit;
   if :cust_name >0 
       then
         insert into cust_trans (invoice_id,cust_id,pay_trans,trans_type,trans_date)
    values (:invoice.invoice_id_2,:cust_name,:invoice.invoice_total,:pay_method,:invoice.invoice_date);
       commit;
       end if;
  
       
     END;
     clear_form(no_commit,no_validate);
       select nvl (max(invoice_id),0)+1   into :invoice.invoice_id_2 from invoice;
       select invoice_total   into :control.last_inv from invoice where invoice_id=:invoice.invoice_id_2-1;
       select sysdate into :invoice.invoice_date   from dual;
       :invoice_datails.invoice_id := :invoice.invoice_id_2;
       --READ_IMAGE_FILE('D:\barnees\images\'||:global.user1||'.jpg', 'jpg', 'img1');
       :senf_q := 1;
       :senf_discount := 0;
       :pay_method:='äÞÏí';
       :user_n:=:global.user1;
       :SENF_DISCOUNT_NAQDI :=0;    
       go_block('control');
       go_item('barcode'); 
     

invoice.rdf invoice.rep