Get the logomaker from its in ukranian but its easy enough to use
just select the reader you want v3 or v8 and then
select the two pics you want one for starting logo another for closing logo by pressing the folder icon
then press the black white logo beside that fixes the image for eink
it will save it for you.
Its only for v3 and v8 but it has a devices.ini file with it you can play around with it so it produces something with the correct size for your reader
http://www.lbook.ua/downloads/createlogo.rar