Epson 300 - Manual (Page 81)

Printable area
Single sheets/index cards/adhesive sheets/transparencies
Envelopes
A: The minimum top margin is 0.12 inch (3.0 mm).
When loading multiple sheets of EPSON Photo Quality Glossy Film, the
minimum top margin is 1.2 inches (30 mm).
B: The minimum left margin is 0.12 inch (3.0 mm).
The minimum right margin for single sheet paper is 0.12 inch (3.0 mm)
except for letter and legal size paper. The minimum right margin for
letter and legal size paper is 0.35 inch (10.0 mm).
The minimum right margin for envelopes is as follows:
0.54 inch (13.8 mm) for DL envelopes.
1.32 inches (33.8 mm) for No. 10 envelopes.
C: The minimum bottom margin is 0.54 inch (14.0 mm).
Note:
Always load paper into the sheet feeder short edge first. Load envelopes top
edge first with the flap side down.
A
B-L
B-R
C
a-1
C
B-R
A
B-L
a-2
L
Hudson++ Ref. Guide
Rev.d
A5 size Appendix
05-7-98 DR, pass 4
A-4 Printer Specifications