Maintenance Manual SP 40
Rev. 005
119
Chapter 7
Electromechanical Devices
Chapter 7 Electromechanical Devices
7.1 Overview
This chapter contains technical information on all the electromechanical devices installed on this printer in order to be
able to detect an electrical problem on them.
7.1 Print Head
- Coil resistance : 4.0 ohm ±10% at 20 °C
- Thermal sensor : 1.000 ohm ±1% at 25 °C
- Insulation resistance : Min. 4 Mohm at DC 500 V
- Needle diameter : 0.25 mm (0.0098")
- Allowable coil temp. : 160 °C
1) Support
2) Wheel Support
3) Wheel
4) Edge Sensor
5) Electromagnetic Group
6) Connector
Fig. 7.1 - Print Head Architecture