Ricoh Neptune-P1, Руководство по обслуживанию

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“500” is the default setting for LPH 1-2 and LPH 2-3.
• If you change the 2nd digit of the value for LPH 1-2 (500 to 510) with SP2952-1, this moves the four
LEDs by one position to the left.
• If you change the 2nd digit of the value for LPH 2-3 (500 to 510) with SP2952-2, this moves the four
LEDs by one position to the right.
• If you change the 3rd digit of LPH 1-2 or LPH 2-3 (510 to 512, for example), this increases the
quantity of light from LEDs 1, 2, 3, 4 in the illustration.
The quantity of light can be adjusted for each LED independently with SP2953 (Power Correction). But,
this fine adjustment is usually not necessary in the field.
Adjusting LPH Alignment
Broken lines [A] or [B] in Test Pattern 2 indicate incorrect sub scan timing at one or both joints.
1. Go into the SP mode, and do SP2952-11 for LPH 1-2
• Adjust the position of LPH 2 (LPH 1 does not move).
• If LPH 2 is higher than LPH 1, set a larger value.
• If LPH 2 is lower than LPH 1, set a smaller value.
3. Replacement and Adjustment
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