Developer Initialization - Ricoh B202 Service Manual

6.2.7 DEVELOPER INITIALIZATION

You must set "Enable" in SP5-999-005 (black), 006 (yellow), 007 (magenta), or 008
(cyan) for the machine to detect the new unit after you install a new development
unit. These settings depend on the development unit you install. The machine
initializes the developer when it detects a new unit.
First, the machine agitates the developer for about 60 seconds. Second, it adjusts
V (control voltage for TD sensor) so that V
CNT
0.2 volts. Finally, the machine keeps this V
V is corrected for the current humidity every print job. V
CNT
the total number of prints. This does not let the developer Q/M vary.
If the humidity correction is giving poor
results (for example, if the humidity sensor
[A] is broken), it can be disabled with SP2-
223-2. Then a value for V
manually using SP2-224-1 to -4 (adjust by
trial and error).
During developer initialization, the machine
forcibly supplies toner because there is no
toner inside the toner transport tube at
installation. Then the machine does the
process control self check.
SM
T
as V
T
must be input
CNT
[A]
6-19
PROCESS CONTROL
(TD sensor output) becomes 3.0 ±
.
REF
is also corrected for
CNT
B202/B178/B180
B178D512.WMF