RISO Inc. Technical Communications
us.riso.com
CHAPTER 14: MASTER MAKING SECTION
[ 14 - 6 ]
4. TPH (Thermal Print Head) Elevation Mechanism
When the machine is at standby or when loading the master onto the print drum after master making, the
TPH is elevated away from the write roller. The TPH is lowered against the write roller only during the master
making and master transfer operation.
The up and down movement of the TPH is made by the rotation of the eccentric pressure cam rotated by the
thermal pressure motor.
The stop position of the TPH, whether going up or down, is detected by the thermal pressure sensor and
sensor disc.
When the machine power is switched ON or when the all-reset button is pressed, the initialization movement
of the machine elevates the TPH away from the write roller.
1409
1410
TPH bracket
Eccentric pressure cam
Sensor disc
Thermal pressure sensor
TPH (Print Thermal Head)
Thermal pressure motor
Write roller
< TPH at elevated position >
< TPH at lowered position, touching against the Write roller >
Содержание RZ2xx Series
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