Ricoh FT4460, Service Manual, Page: 102 / 413

28 February 1989
5.19.3 Developer Counter Correction
Developer B l a c k D e v e l o p e r C o u n t e r
C o u n t e r
Vsp
Initial
C o r r e c t i o n
Vsg (%)
0 - 4 9 9 C o p i e s
Mode Then 500
0
12-15
+ 0 V + 0 V
1
0 - 7
- 4 0 V + 0 V
2
8-11 - 2 0 V
+ 0V
3
16-21
+ 0 V
+20V
4 2 2 -
+ 0 V
+40V
The developer counter correction (Vsp/Vsg) compensates for the change in
the triboelectric charge as the new developer mixture (black only) is broken
in.
5.19.4 Total ID Sensor Bias
N o r m a l
I n i t i a l D e v e l o p e r
C o p y M o d e
C o n d i t i o n i n g
B l a c k
C o l o r
Note: The maximum of (2) + (3) is +40V
The above table shows how to calculate the total bias for black or color
developer using the information in tables (1) through (3).
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