Ricoh A219 Service Manual page 370

Mode No.
37 Alpha Correction
Toner Density
38
Adjustment
Beta Correction
70 User Code
Mode
(No UP mode)
72 Registering User
Numbers
(UP 12)
SM
CÓPIA NÃO CONTROLADA
This correction is designed to operate gradually, over a period of
time. Therefore, it should not be used to achieve quick results.
Correction Level
No correction
+0.06V / 1K copies
+0.04V / 1K copies
+0.02V / 1K copies
+0.02V / 2K copies
+0.02V / 4K copies
Adjusts copy quality by changing the toner concentration inside
the development unit.
Note: items 5 and 6 have been newly added to SP38.
Toner Density Correction
Target:
+0.5%
-0.5%
+1.0%
-1.0%
+1.3%
-1.3%
Limitations: -The maximum value of the combined alpha and beta
corrections is 1V.
α + β  ≤ 1.
Therefore:
Perform SP66, to reset the correction counter.
Enables user code mode.
JP101 on the main board must be cut.
If this mode is set, "U2" is displayed in the copy counter and
operators must enter a code to make copies.
Using the number keys, input the three-digit user code
number (e.g.111,123, 999). Available user codes are; 1 - 999.
Please note that 000 is invalid.
Function: Registers user numbers.
The user number (1-10) is displayed in the copy counter. Code
numbers are displayed in the three digit indicator (Zoom, %). To
change the user code numbers, use the Zoom key.
12-3
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Function
Variable Correction Target
- - Lighter
-
Light
Default
+
Dark
++
Darker
Target VT
Correction:
No correction
-0.375V
+0.375V
-0.75V
+0.75V
-1.0V
+1.0V
Data
0
1
2
3
4
5
Target
0
Darker
1
Lighter
2
Dark
3
Light
4
Darkest
5
Lightest
6
0: No
1: Yes
B019