Specifications

4–4 Adjustment Procedures
Hammer Phasing Adjustment (Figure 4–2 )
NOTE: Hammer phasing must be checked and adjusted when PROMs on
the common controller PCBA are replaced.
1. Connect the power cord to the ac power source.
2. Set the printer power switch to 1 (on).
3. Load paper.
4. Press the ON LINE switch to take the printer off–line.
“Off–Line/Emulation” appears on the message display.
5. Open the printer cover.
6. Press the UP and DOWN switches simultaneously to unlock the ENTER
switch. “Unlocked” appears briefly on the display.
7. Press the DOWN switch. “Emulation/LG06” appears on the display.
8. Press NEXT (or PREV) until “Emulation/Self–Test” appears on the
display.
9. Press ENTER. “Emulation/Self–Test * ” appears on the display.
10. Press DOWN, then press NEXT (or PREV) until “Self Test/Phasing”
appears on the message display.
NOTE: Phasing adjustments should be made with the printer printing at full
paper width.
11. Press the R/S switch. “Phasing” and the current phasing index number
display. The printer begins printing all Hs in a data processing (DP) font,
each line preceded by the phasing index number.
12. Press the NEXT or PREV switches to increase or decrease the phasing
index until the pattern of Hs appears as shown in Figure 4–2 .
13. When the print pattern is acceptable, press the R/S switch. Printing
stops, and the current phasing value is entered into nonvolatile memory.
14. Press the CLEAR switch. “Off–Line/Emulation” appears on the message
display.
15. Press the UP and DOWN switches simultaneously to lock the ENTER
switch. “Locked” appears briefly on the display.
16. Close the printer cover.
17. Press the ON LINE switch to place the printer on–line.