Paper Scale Alignment - IBM 6400 series Maintenance Manual

Paper Scale Alignment (Figure 24)
1. Load paper and ribbon.
2. Connect the power cord to the AC power source.
3. Set the printer power switch to 1 (on).
4. Open the printer cover.
5. Verify that the shuttle cover (1) is properly installed (page 209).
6. Print a full 136 column line by selecting and running one of the diagnostic
self-tests. (See Chapter 4.)
7. Check alignment of the scale to the print at column positions 1 and 136.
8. If adjustment is necessary, loosen the three button-head 5/64 inch hex
screws (2).
9. Position the scale (3) so that column positions 1 and 136 line up with the
first and last characters on the 136 character printout.
10. Tighten the 5/64 inch button-head screws (2).
11. Close the printer cover.
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Adjustment Procedures