Gestetner B147, Руководство по обслуживанию

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PROCESS CONTROL
SM 6-19 B147/B149/B190
Detailed
Des
cription
s
6.2.7 DEVELOPER INITIALIZATION
After installing a new development unit, you set “Enable” in SP5-999-005, 006, 007,
or 008 for the machine to detect the new unit. When detecting a new unit, the
copier initializes the developer.
First, the copier agitates the developer for about 100 seconds. Second, it adjusts
V
CNT
(control voltage for TD sensor) so that V
T
(TD sensor output) becomes 3.5
±
0.1 volts. Third, the copier stores this V
T
as V
REF
.
V
CNT
is corrected for the current humidity every print job. V
CNT
is also corrected for
the total number of prints, to prevent the developer Q/M from varying.
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
CNT
must be input
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.
B146D903.WMF
[A]