GE Medical Systems
EAGLE 1000
Page 55
Information Technologies
Servicing Instructions
227 468 01 Rev. G
2.2.12.3 Internal interfaces
Mechanical interfaces
-
30-lead flat strip cable with cased socket housing to printhead
-
4-lead male multipoint connector with coding to the motor
Electronic interfaces
Printhead interface
The thermal-array printhead is connected with a 30-lead flat strip cable to the PCB DIGI-
TAL. Serial loading of data ensues via the KDATA cables, using the clock signal KCLOCK
into the printhead shift register. Parallel data is transferred to the printhead latch register
with the KLATCH signal. The heating period is controlled by the KSTRB cable.
The printer controller receives an analog signal, which varies according to the temperature
of the printhead, via cables TERM1 and TERM2.
Via signals delivered by the VDD1 cable when not printing the thermal-array printhead is
put into power save mode.
The remaining leads are used to supply voltage to the printhead. Refer to P-Plan PCB
Recorder for pin assignment.
Motor interface
The motor is connected to the male multipoint connector on the printer controller via a 4-
lead plug-in socket. The motor is connected b22V and Motor+, the speedo gene-
rator between MOTGEN- and .
Refer to P-Plan PCB Recorder for pin assignment.
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