HP DesignJet 250C - Electronics Module

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5Ć13 Functional OverviewC4699Ć90000
Electronics Module
The electronics module includes the main PCA, power supply and fan. It is one exchangeable
part; you do not need to open it. If you replace the electronics module, remember to swop
any SIMMs from the old module to the new one.
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J1
J2
J3
J5
J6
J8
J7
J11 Parallel
J12 Serial
U19 Firmware SIMM
U20 RAM SIMM
Electronics
Module
Front Panel
Cover
Sensor
Media
Sensor
Carriage
Media
Encoder
Media
Motor
Carriage
Motor
J13
Pinch-arm
Sensor
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There is no bail sensor for the DesignJet 230 and 250C and DesignJet 330 and 350C. There is
no pinchĆarm sensor on the DesignJet 230 and 250C but there is one on the DesignJet 330
and 350C. The following sensors connect to the main PCA:
 The
  is a mechanical switch that detects if the plotter cover has been raised.
If you open the cover while the plotter is plotting, the plot is cancelled!
 The
  detects the presence of media. It is also used to determine media size.
 The
  detects whether the pinchĆarms have been raised. The servo
processor uses the sensor to determine the pinchĆarm position during the initialization
sequence.