Ricoh D025 Service Manual page 220

Laser Optics
2. Adjust the main scan magnification for K, M, C, Y.
Input the standard values [C] provided with a new laser optics housing unit for the
main scan magnification adjustment with SP2-102-013, 014, 015, 016.
The values [C] are different for each laser optics housing unit.
3. Adjust the main scan magnification only for black (K).
Input the standard value [A] provided with a new laser optics housing unit for the
main scan magnification adjustment with SP2-185-001.
The value [A] is different for each laser optics housing unit.
Print the test pattern (14: 1-dot trimming pattern in the SP2-109-003).
Check that the left and right trim margin is within 4 ± 1 mm. If not, change the
standard value for the main scan magnification adjustment.
4. Adjust the main scan registration only for black (K).
Input the registration value [B] provided with a new laser optics housing unit for the
main scan registration adjustment with SP2101-001.
The value [B] is different for each laser optics housing unit.
Print the test pattern (14: 1-dot trimming pattern in the SP2-109-003).
Check that the left trim margin is within 2 ± 1 mm. If not, change the registration
value for the main scan registration adjustment.
5. Select "0" with SP2-109-003 after printing the "1-dot trimming pattern.
6. Do the line position adjustment.
D023/D025 4-44 SM