Thermal Head Driving Mechanism - Ricoh C249 Service Manual

MASTER FEED

6.4.3 THERMAL HEAD DRIVING MECHANISM

Mechanism
Thermal head driving motor [A]
↓
Gears [B]
↓
Thermal head release cam [C]
↓
Thermal head base [D] is released from the platen roller [E].
Thermal head HP sensor [F] has two stop positions:
• Platen roller apply position
• Platen roller release position
The actuator disk [G] interrupts the thermal head HP sensor [F] when the thermal
head base [D] is released from the platen roller [E].
C249
[D]
[A]
6-20
[E]
[C]
[B]
C249D946.WMF
[F]
[G]
SM