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Guide for applicants, Part 1: How to get a European patent

Confirmation on paper
If you file your application electronically (using the EPO software to prepare the application, online or on CD-R, DVD-R or DVD+R) , you do not need to supply paper confirmation. Unless you are asked by the EPO to file paper confirmation because of the low quality of the fax transmission, you do not need to do so. Confirmation No confirmation on paper is not needed whenif you file your the application is filed online or electronically. If you file by fax and the fax is received in poor quality, you might bethe EPO may ask youasked by the EPO to file paper confirmation.
OJ 2009, 182
OJ 2012, 448
OJ 2007, Special edition No. 3, A.3, A.5
When filing paper confirmation, you should indicate clearly that the document constitutes "confirmation of a document filed on ... by fax".