Polygon Mirror Motor - Ricoh B230 Service Manual

main scan magnification adjustment with SP2-185-001.
The value [A] is different for each laser optics housing unit.
2. Print the test pattern (14: 1-dot trimming pattern in the SP2-109-003).
3. 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.
3. Adjust the main scan registration only for the black (Bk).
1. 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.
2. Print the test pattern (14: 1-dot trimming pattern in the SP2-109-003).
3. Check that the left trim margin is within 2 ± 1 mm. If not, change the registration
value for the main scan registration adjustment.
4. Select "0" with SP2-109-003 after printing the "1-dot trimming pattern.
5. Do the line position adjustment.
1. First do SP2-111-3.
2. Then do SP2-111-1.
To check if SP 2-111-1 was successful, watch the screen during the process. A
message is displayed at the end. Also, you can check the result with SP 2-194-10
to -12.
6. Exit the SP mode.

3.6.3 POLYGON MIRROR MOTOR

1. Laser optics housing unit (
2. Shutter [A] of the laser housing optics unit (
B230/B237
"Laser Optics Housing Unit")
x 3)
3-34 SM