Carrier Drive, Home Position Sensor, Ribbon Feed
Service Check
23XX-001 only: If the carrier stops but the print wires continue to fire
(printing one vertical column of dots), or if the carrier does not move
after turning the printer off and then on, inspect the area of the main
logic board that is below the paperfeed motor. If this area is
damaged or cracked, replace the main logic board. Also check the
continuity of soldered-on fuse FU1 located on the main logic board
near the paper empty sensor. If this fuse is open, replace the main
logic board. Turn the printer off and then on. The carrier should
move to the left, contact the home position sensor on the left side
frame, and immediately move slightly away from the sensor.
A Home Position Error occurs when:
•
The sensor is not closed.
•
The sensor is not quickly opened.
•
The sensor is closed any time other than when the printer is
turned off and then on.
Diagnostic Information 2-17
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