IBM 4247 Maintenance Information page 244

Table 31. 26-Pin Printhead Connector
(18-Wire Printhead)
Pin Names Pin Names
1 Not Used 2
3 Not Used 4
5 Thermal 6
Sensor Ground
7 Wire 2B Coil 8
9 Wire 3B Coil 10
11 Wire 4B Coil 12
13 Wire 8B Coil 14
15 Wire 7B Coil 16
17 Wire 6B Coil 18
19 Wire 5B Coil 20
21 Wire 1B Coil 22
23 Ribbon Lift Pin 24
2
25 Ribbon Lift Pin 26
1
9-Wire Printhead Wiring (Model 002)
The printhead is an electromagnetic, non-ballistic type. It has one column of 9 wires. Wire 1 is at the top. Needle
5 is used for AFTA paper thickness measurements. The printhead is connected to the logic board by a 26-pin
cable.
Not Used
Not Used
Thermal
Sensor
Wire 2B Coil
Wire 3B Coil
Wire 4B Coil
Wire 8B Coil
Wire 7B Coil
Wire 6B Coil
Wire 5B Coil
Wire 1B Coil
Ribbon Lift Pin
3
Ribbon Lift Pin
4
Chapter 3. Circuit Diagrams
244