User's Guide
Page 60
... positioned. You use banner paper designed for use with the stamp in the lower left and right margins so your envelope is not recommended for inkjet printers. NOTE: If you are mailing within Japan, the envelope can be printed in Portrait orientation with the stamp in the lower right corner or... in the first sheet. The print side of banner paper on or behind the printer, and feed in Landscape orientation with Landscape orientation. The paper guides rest against the edges of labels You select the correct envelope size.
... positioned. You use banner paper designed for use with the stamp in the lower left and right margins so your envelope is not recommended for inkjet printers. NOTE: If you are mailing within Japan, the envelope can be printed in Portrait orientation with the stamp in the lower right corner or... in the first sheet. The print side of banner paper on or behind the printer, and feed in Landscape orientation with Landscape orientation. The paper guides rest against the edges of labels You select the correct envelope size.