Ricoh Aficio IS420 Service Manual page 99

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October 9th, 1995
18. Move the 1st carriage to the white chart position. Then press the Enter
key.
<<<< AGC=27 >>>>
<<<< Absolute white level (W1) >>>>
Ajust VR3 : <W0X> == 0 +/- 3
**** Image Data (#3684) **** [ Exit : '!' key ]
003,003, 085,085 (082,082 <+>000) [082]
19. Adjust VR3 on the SBU until the value of X is within the required range.
(In the example screen above, the value on the bottom line below the X
must be 0 +/- 3.) Then input !.
<<<<<< EXIT >>>>>>
[ Finish white odd even ajustment!! ]
[ Next : Hit Enter Key !! ]
20. Press the Enter key. This ends the White Level Difference Adjustment
and starts the Absolute White Level Adjustment.
**************************************
**** AJUST WHITE LEVEL (ABSOLUTE) ****
**************************************
---- Put the White Chart on the Lamp position !!
---- << Then , Hit Enter Key >>
21. Make sure that the 1st carriage is at the white chart position. Then press
the Enter key.
<<<< AGC=27 >>>>
<<<< Absolute white level (W1) >>>>
Ajust VR4 : [X] == 220 +0 /-10
**** Image Data (#3584) **** [ Exit : '!' key ]
002,002, 219,217 (217,215 <+>002) [216]
22. Adjust VR4 on the SBU until the value of X is within the required range.
(In the example screen above, the value on the bottom line below the X
must be 220 +0 / - 10.) Then input !.
<<<<<< EXIT >>>>>>
[ Finish white level (absolute) ajustment!! ]
[ Next : Hit Enter Key !! ]
23. Press the Enter key. This ends the Absolute White Level Adjustment and
starts the Relative White Level Adjustment.
**************************************
**** AJUST WHITE LEVEL (RELATIVE) ****
**************************************
---- Put the White Chart on the Lamp position !! ----
<< Then , Hit Enter Key >>
APPENDIX B. OPTICAL ADJUSTMENT (ELECTRICAL)
Ave-(O:082,E:082 <+>000) [082]
Ave-(O:217,E:214 <+>002) [215]
B-7
[X]
[X]

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