APS SS205-V4+ LV - Typical Printing Conditions; Heating Time Calculation

Advanced Printing Systems
SS205-V4+ LV - Technical Manual - Rev B Page 9
3.5. Typical Printing Conditions
Item
Symbol
Recommended conditions
Unit
Note
Printing Speed
Tcy
3.6
2.5
1.25
ms/line
Heater power
consumption
Po
0.126
0.323
0.456
W/dot
R=123 Ohms
Heat / motor voltage*
VH,VM
4.0
7.2
8.5
V
Between
Connectors
Heater
energy
consumption
T: 5°C
Eo/(ts)
0.20 / (0.62)
0.17 / (0.37)
mJ/dot(ms)
T: 25°C
0.416 / (3.3)
0.18 / (0.56)
0.14 / (0.31)
T: 40°C
0.16 / (0.50)
0.13 / (0.29)
Supply current
Io
34
51.2
60.9
mA/dot
* In order to remove effect of voltage drop from drivers, those figures are given in following conditions:
 VH TPH is voltage between VH & GND FPC contacts while printing
 VM Motor is voltage between 2 motor Phases (PHI1/PHI3 or PHI2/PHI4) while running
The print optical density is then 1.0 minimum with a maximum variation of 0,3. This measurement is done
at the full black pattern by Macbeth densitometer RD-914. Full black pattern is defined as all dots printing
pattern (100% black of 64 dots x 30 scanning lines) printed under correct paper speed on
JUJO-AF50KS-E thermal paper.
3.6. Heating Time Calculation
The following formula allows calculating the heating time Ton depending on driving voltage VH:
Where:
E0
is the nominal energy
VH
is the driving voltage
Rav
is the average resistance
N
is the number of dots energized simultaneously
Rcom
is the common resistance (0.05 Ohms)
Ric
is the driver saturated resistance (11.7 Ohms)
Rl
is the lead resistance (10 Ohms) (or resistance of TPH contacts)