Oki MC770 - Image Related Adjustment

45584901TH Rev.1
4-1 /
Oki Data CONFIDENTIAL
4. SETTING / ADJUSTMENT
4.1 Image Related Adjustment
4.1.1 Adjustment Order
This chapter mainly explains the procedures for image related adjustment. In the following
diagram,thesolidlineswitharrowleadtoessentialadjustments,whilethedottedlinesleadto
adjustments to be performed if necessary.
Parts to be replaced
Drum unit Transfer blet unit
Item to be adjusted Code in 05 mode
4.1.2 Density correction
4905
4.1.3 Image dimensional adjustment
Item
Code in 05 mode
in the copy/printer/fax function
Order
1
2
7000
7001 (*4)
Code in 05 mode
7869 (*1), 7871-0, 2 to 6, 8 to 10
8008 (*2), 8004-0, 2 to 6, 8 to 10, 8009 (*3), 8005-0, 2 to 6, 8 to 10
Adjust the image quality if necessay. Chapter 4.2, 4.3, 4.4, 4.5
END
Item to be adjusted
4.2.1 Automatic gamma adjustment (PPC)
4.3.1 Automatic gamma adjustment (PRT)
*1: Use [4] + [FAX] test pattern.
*2: For 600 dpi. Use [70] + [FAX] test pattern.
*3: For 1200 dpi. Use [230] + [FAX] test pattern.
*4: Adjustment can be done only for enlarging image.
Image dimensional adjustment
Fig. 4-1