Section I. General; Introduction; Tools, Test Equipment, And Supplies - Printronix p300 Maintenance Manual

5–1. Introduction
Corrective maintenance at the field service level consists of mechanical alignments, adjustments, and the
replacement of defective printer components.
a. Alignments and Adjustments
Alignment and adjustment procedures are in Section II of this chapter. Items that may require field service
alignment or adjustment are listed below.
Item Paragraph
1. Ribbon Hub Height
2. Ribbon Tracking
3. Shuttle Spring Force
4. Shuttle Counterweight Spring Preload
5. Hammer Spring Retensioning
6. Hammer Tip Alignment
7. Hammer Tip Height (Protrusion) Adjustment
8. Platen Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9. Magnetic Pickup Gap
10. Magnetic Pickup Phasing
11. Adapting Shuttle Motor to Line Frequency
12. Shuttle Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13. Paper Feed Belt
14. Paper Motion Sensor
15. Paper Out Detectors
b. Replacement
Section III of this chapter contains removal/installation procedures for components replaceable at the field
service maintenance level. For part numbers of replaceable components, refer to Appendix C. For the page
number location of specific removal/installation tasks, consult the table of contents or the index.
Printed Circuit Board Assemblies (PCBAs) and the Shuttle Assembly (except loose items as specified
herein) are designated as field replaceable and factory repairable. Do not attempt field repair on these
items.
5–2. Tools, Test Equipment, and Supplies
The tools, test equipment, and supplies required for field level maintenance are listed in Table 5–1.
P300/P600 Corrective Maintenance
CHAPTER 5
CORRECTIVE MAINTENANCE

Section I. GENERAL

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