No. Component Function
1 OCFS 1 (K1) On Carriage Filler Sensor K1. The on-carriage sensor that
monitors the position of the feeler arm on the side of the K1 ink
sub tank. This movement of this sensor is used to signal low ink
in the K1 sub tank.
2 DRESS Sensor Direct Realization Edge Scanning Sensor. The DRESS sensor is
mounted on the left lower edge of the carriage unit. It performs
both paper registration and image registration.
3 COM Relays signals between the main machine and the K1 print
head unit.
4 HRB Head Relay Board. Mounted behind the print heads in the
carriage.
The HRB relays signals to the BiCU from the horizontal encoder
sensor, DRESS sensor, color print heads and thermistors.
5 Horizontal Encoder
Sensor
Detects the long encoder strip mounted behind the horizontal
drive belt. Controls the operation of the horizontal motor, which
drives the carriage unit during printing.
6 Head Lift Sensor Detects the vertical print head position and controls the head lift
motor.
7 Head Thermistor (Color) Monitors the temperature of the color print head units.
8 Air Sensor: C Detects excess air in the C ink sub tank of the C print head unit.
9 Air Sensor: M2 Detects excess air in the M2 ink sub tank of the Y2M2 print
head unit.
10 Air Sensor: Y2 Detects excess air in the Y2 ink sub tank of the Y2M2 print
head unit.
11 Air Sensor: M1 Detects excess air in the M1 ink sub tank of the Y1M1 print
head unit.
12 Air Sensor: Y1 Detects excess air in the Y1 ink sub tank of the Y1M1 print
head unit.
13 Air Sensor: K2 Detects excess air in the K2 ink sub tank of the K2 print head
unit.
14 Head Thermistor (K) Monitors the temperature of the black print head unit (K1).
6. Troubleshooting
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