Ricoh U-C1 B051 Service Manual page 150

SCANNER WHITE LEVEL ADJUSTMENT
Table 2: Ricoh Copy paper for Aficio Color, 100 g (Europe)
SP4-902-2
(G_DATA1)
255
254
253
252
251
250
249
248
247
246
245
244
243
242
:
:
232
231
230
229
228
227
226
225
224
223
222
221
220
219
218
217
216
215
Example 1: When the value in SP4-902-2 is "255", add 23 to the value in SP4-685-
001, 18 to the value in SP4-686-001, and 23 to the value in SP4-687-
001.
Example 2: When the value in SP4-902-2 is "242", do not change any values in
SP4-685-001, SP4-686-001, and SP4-687-001.
Example 3: When the value in SP4-902-2 is "231", subtract 9 from the value in
SP4-685-001, 7 from the value in SP4-686-001, and 8 from the value
in SP4-687-001.
SP4-685-001 SP4-686-001
(Reference
Adjustment: R) Adjustment: G)
+23
+22
+21
+20
+19
+17
+16
+15
+13
+12
+11
+10
+8
±0
-9
-10
-12
-13
-15
-16
-18
-19
-21
-22
-24
-25
-27
-29
-30
-32
-34
SP4-687-001
(Reference (Reference
Adjustment: B)
+18
+17
+16
+15
+14
+13
+12
+11
+10
+9
+8
+7
+6
±0
-7
-8
-9
-10
-11
-12
-13
-14
-16
-17
-18
-19
-20
-22
-23
-24
-25
3-68
26 July 2002
Remarks
+23
+21
+20
+19
+18
Increase the
+17
values in SP4-
+15
685-1, 686-1,
+14
and 687-1.
+13
+12
+11
+9
+8
No adjustment is
±0
required.
-8
-10
-11
-13
-14
-16
-17
Decrease the
-19
values in SP4-
-20
685-1, 686-1,
-22
and 687-1.
-23
-25
-26
-28
-30
-31
-33