Solution : https://service.sap.com/sap/support/notes/98390 (SAP Service marketplace login required)
Key words : 
rpldqlj0        rpldqoj0        rpldtdj0        rpllidj0        rpllidj2        rplsddj0        rplwntj1        rplwntj2        rplwntj3        rplwntj4 additional key words otf, line        language          = sy-languin, otf module, printing japanese forms, error message appears, spool server assigned, line        language           = 'd', sapscript output request, language 'd' coded, function module open_form
Related Notes : 
       
| 94391 | OTF module: setting language environment X failed |