Epson TM-C3500 Series Technical Reference Manual page 12

Reliability
Life
MTBF
MCBF
12
Print head 6 billion shots/nozzle
Paper feed 1,500,000 pages or the number of pages that reaches the
mechanism following paper length fed.
 Plain Media: 150 km
 Matte Media: 75 km
 Wrist band (WB-S/M/L series): 30 km
 Die-cut label (Plain Media): 150 km
 Die-cut label (Matte Media): 150 km
 Die-cut label (Synthetic Media): 100 km
 Die-cut label (Glossy Media): 100 km
 Continuous label paper (Plain Media): 100 km
 Continuous label paper (Matte Media): 50 km
 Continuous label paper (Synthetic Media): 10 km
 Continuous label paper (Glossy Media): 30 km
 Plain Media: 1,500,000 cuts
Autocutter
mechanism  Matte Media: 750,000 cuts
 Wrist band (WB-S/M/L series): 200,000 cuts
 Die-cut label backing paper (Plain Media): 1,500,000 cuts
 Die-cut label backing paper (Matte Media): 1,500,000 cuts
 Die-cut label backing paper (Synthetic Media): 500,000 cuts
 Die-cut label backing paper (Glossy Media): 1,500,000 cuts
 Continuous label paper (Plain Media): 750,000 cuts
(Add extra 250,000 cuts with cleaning the cutter blade)
 Continuous label paper (Matte Media): 500,000 cuts
 Continuous label paper (Synthetic Media): 100,000 cuts
 Continuous label paper (Glossy Media): 300,000 cuts
6 million passes 
Carriage
mechanism (3 million carriage returns)
88,000 hours
9,800,000 passes