Solution : https://service.sap.com/sap/support/notes/595482 (SAP Service marketplace login required)
Key words : 
respective conversion reports occurs client-specifically, standard texts / individual letters / notes, individually stored applicant letters, microsoft word standard texts', standard ebcdic character set, word standard texts, transaction pb50/pb60, ebcdic character sets, individual applicant letters, standard texts
Related Notes : 
       
| 647583 | HR Recruitment: EBCDIC --> ASCII Codepage Conversion | 
| 534966 | Import of Microsoft Word standard texts | 
| 500950 | iSeries: R/3 EBCDIC --> ASCII Codepage Conversion Doc. | 
| 39510 | AS/400: ASCII-EBCDIC |