Specifications

25
SK1-21/31
*Note1Use AC adapter, printing rate less than 25%.
*Note2ESC/POS is registered trademark of Seiko Epson Corporation.
*Note3DC24.0V, Printing rate 25%, at room temperature
*Note4Not permitted with the smaller width paper roll.
Friction between the head and the platen roll in the no paper area may degrade print quality.
(Guaranteed area of acceptable temperature and humidity)
Model SK1-31S F SK1-31S J SK1-21S F SK1-21S J
Weight
630gWithout paper roll 525gWithout paper roll
Dimensions
127×145.5×88.5mmW×D×H
without protruding parts
104×145.5×88.5mm(W×D×H
without protruding parts)
Paper roll
Paper width: 58 / 60 / 80 / 83 mm
Note 4 & supplement
Paper thickness59µm to150µm
External dimensionsφ102mm or less
Core diameter
Internal/External dia. φ12.0mm/18mm
Internal/External dia. φ17.0mm/21mm
Internal/External dia. φ25.4mm/31.4mm
Standard of print density
Part No. Thickness Print density
TF50KS-E2D 59µm 1.0
TF11KS-ET 145µm 1.2
P220AC 105µm 1.1
PD160 75µm 1.05
HP220A 65µm 1.0
Fan fold
The printer prints fan fold paper. For further information,
please contact a local dealer.
Guaranteed area for printing
Humidity
Temperature