Tally T6215, Maintenance Manual

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T6215 Maintenance Manual
2–10
Selecting And Running a Hammer Calibration Routine
This procedure generates a test pattern consisting of an assortment of characters and character
shapes while stepping through a range of lead times during this hammer timing calibration. The
lead times are measured in clock cycles and are printed along the left side of the paper (see
Figure 2–1). The tests are run at one shuttle frequency and then repeated for other frequencies.
Step 1. Take the printer Offline and place it in Tech Access Mode.
Step 2. Access the Test m enu.
Step 3. Scroll (
▲
Key) until the Diag Category is displayed. Press Enter.
Step 4. Scroll (
▲
Key) until the Calibration Parameter is displayed. Press Enter.
Step 5. Scroll (
▲
Key) until the Hammer selection is displayed.
Step 6. Depress the Enter key to begin the Hammer Calibration Routine .
The printer generates coarse test patterns using hammer lead times from several
shuttle frequencies.
Step 7. Examine each line of the printed output for each lead time and select the one that has
the best dot placement, then scroll to that setting on the Control Panel and depress
the
Enter key to select it.
After you make the last selection (for 45Hz) the printer prints out the settings for the various
lead times and the calibration routine is over.
Repeat the Print calibration routine with "Heavy Forms" turned on and with heavy forms
installed on the printer.