ORA-20001: The printing engine..Is this related to a BIP licensing issue?

Question

Hello all,
The error "ORA-20001: The printing engine could not be reached because either the URL..." happens in 2 cases:
<pre>
1. When our BIP is down or being bumped
2. As an APEX administrator, in workspace environment settings, the print server is set to OFF.
</pre>
I'm thinking that this is a licensing issue but I need some clarification on what is causing the error, because all we are trying to do is bring up a PDF report that a user can open or save. BIP is not involved at this point. Is it because the report was developed using BIP that APEX needs BIP up? How does APEX even know the report was developed using BIP? Were are using APEX 3.2.1.00.12 and BIP 10.1.3.4.1
The error happens when a user clicks on a PDF icon that calls an "After Submit Process". The following is the code and the report that was created in BIP is loaded into APEX with a "Named Columns (RTF)" layout type.
Alex.
declare
  l_xml                         clob;
  l_template                    clob;
  l_request_blob                blob;
  l_response                    blob;
begin
   ...call up a stored proc to populate l_xml with report data
  -- Fetch template
  select page_template
  into   l_template
  from   apex_030200.wwv_flow_report_layouts
  where  flow_id = :app_id
  and    report_layout_name = 'pdf_report';
  -- Convert CLOB to BLOB
  l_request_blob := wwv_flow_utilities.clob_to_blob(l_xml);
  -- Call unsupported and undocumented APEX function
  l_response :=
    apex_030200.wwv_flow_print_util.convert(
      p_report_data   => l_request_blob,
      p_template      => l_template,
      p_template_type => 'rtf',
      p_output        => 'pdf'
  -- Set correct mime type and download response                                           
  owa_util.mime_header('application/pdf', false);
  htp.p('Content-length: ' || dbms_lob.getlength(l_response));
  htp.p('Content-Disposition: attachment; filename="Claim_details.pdf"');
  owa_util.http_header_close;
  apex_application.g_page_text_generated := true;
  apex_application.g_unrecoverable_error := true;
  wpg_docload.download_file(l_response);

Answer 1

See, http://www.oracle.com/technetwork/developer-tools/apex/configure-printing-093060.html
http://download.oracle.com/docs/cd/E17556_01/doc/install.40/e15513/otn_install.htm#CBHBJDDE
(excerpt copied here, for you convenience)
7. Enabling Network Services in Oracle Database 11g
By default, the ability to interact with network services is disabled in Oracle Database 11g release 1 (11.1). Therefore, if running Oracle Application Express with Oracle Database 11g release 1 (11.1), use the new DBMS_NETWORK_ACL_ADMIN package to grant connect privileges to any host for the FLOWS_030100 database user. Failing to grant these privileges results in issues with PDF/report printing, specifically, you will get the following error message:
ORA-20001: The printing engine could not be reached because either the URL specified is incorrect or a proxy URL needs to be specified.
Follow the steps mentioned in the Oracle Application Express Installation Guide, Enabling Network Services in Oracle Database 11g. Also refer to the troubleshooting section in case you receive an ORA-44416: Invalid ACL error after running the previous script.