Epson B 510DN - Manual (Page 114)

3. Cut the taped sheets in two along a vertical line through the alignment markers (this time, a line to
the left of the cross marks):
4. Align the edges of the paper using the alignment markers and tape them together from the back:
5. Repeat the instructions from step 1 to step 4 to tape Sheets 3 and 4 together.
6. Repeat the instructions from step 1 to step 4 to tape the top and bottom edges of the paper:
7. Cut off the remaining margins.
B-310N/B-510DN User’s Guide
Printing with Special Layout Options 114