Ricoh B156 Service Manual page 186

SCANNER WHITE LEVEL ADJUSTMENT
Table 2: Ricoh Copy paper for Aficio Color, 100 g (Europe)
SP4-902-2
(G_DATA1)
Adjustment: R)
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 SP4-885-
001, 18 to the value in SP4-886-001, and 23 to the value in SP4-887-
001.
Example 2: When the value in SP4-902-2 is "242", do not change any values in
SP4-885-001, SP4-886-001, and SP4-887-001.
Example 3: When the value in SP4-902-2 is "231", subtract 9 from the value in
SP4-885-001, 7 from the value in SP4-886-001, and 8 from the value
in SP4-887-001.
B156/B220
CÓPIA NÃO CONTROLADA
SP4-885-001 SP4-886-001
(Reference (Reference
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
CÓPIA NÃO CONTROLADA
SP4-887-001
(Reference
Adjustment: B)
+18 +23
+17 +21
+16 +20
+15 +19
+14 +18
+13 +17
+12 +15
+11 +14
+10 +13
+9 +12
+8 +11
+7 +9
+6 +8
±0 ±0
-7 -8
-8 -10
-9 -11
-10 -13
-11 -14
-12 -16
-13 -17
-14 -19
-16 -20
-17 -22
-18 -23
-19 -25
-20 -26
-22 -28
-23 -30
-24 -31
-25 -33
3-74
Remarks
Increase the
values in SP4-
885-1, 886-1,
and 887-1.
No adjustment is
required.
Decrease the
values in SP4-
885-1, 886-1,
and 887-1.
SM