Epson TM-C3500 Series Technical Reference Manual page 28

Temperatures/ Printing
humidity
Storage
(See
"Environmental
Conditions" on
page 63 for
details.)
Overall dimensions (H × W × D)
Weight (mass)
28
10 to 35C, 20 to 80%RH (no condensation)
When packed (ink not loaded): -20 to 60C, 5 to 85%RH (no
condensation)
-20C or 60C: up to 120 hours
Ink loaded: -20 to 40C
-20C: up to 120 hours
0 to 30C: up to 6 months
40C: up to a month
310 × 283 × 261 mm (excluding protrusions)
Approximately 12 kg {26.45 lb} 
(Not including the ink cartridge, maintenance box, AC adapter,
and roll paper).