Revision C 170 Series Monitor 7-41
2000947-004
Serviceable Assemblies: Servicing the Recorder
Servicing the Recorder
Replacing the Printhead
Equipment Required
Phillips screwdriver
Vernier caliper
Printhead (part no. 2000133-001)
Procedure
1. Remove the AC line cord from the monitor to completely remove power.
2. Follow the instructions for “Removing the Monitor Top Cover” on page 7-19.
3. Pry the printhead cable connectors free from the back of the printhead.
4. Open the recorder drawer.
5. Remove the four screws (two per side) holding the printhead in place. The
printhead will drop out.
6. Insert the new printhead, aligning the edges near the ends flush with the support
plate. Secure with the four screws.
7. Slowly close the drawer observing the roller and printhead. Ensure that the
roller is parallel to the printhead striking the printhead evenly as the drawer
shuts.
8. Replace the printhead cable.
9. Verify that there is a slight gap (0.003 in minimum) between the shoulder nut
standoff and the downstop plate (without paper installed). Adjust accordingly.
10. Follow the instructions for “Aligning the Printhead” on page 7-43.
11. Once the recorder prints satisfactorily, secure the monitor top cover in place.
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