Toshiba e-STUDIO4500c Service Manual page 577

April, 2007
3303 Tnr Supply Rate
Displays for confirmation the toner supply rate of toner supply control using the PID
method. The toner supply rate is calculated as:
Toner Supply Rate = Toner Supply Time/Time Allowed for Toner Supply x 100
where:
Time is measured in msec.
"Time Allowed for Toner Supply (ms)" = Length of the paper (mm) + Width of the
gap between sheets (mm)/Drum speed (mm/s) x 1000.
Note: The toner supply control method is selected with SP3301.
001 Last Val:K
002 Last Val:M
003 Last Val:C
004 Last Val:Y
005 Last 10 Ave:K
006 Last 10 Ave:M
007 Last 10 Ave:C
008 Last 10 Ave:Y
3304 Tnr SupplyLimits
Sets the upper and lower limits for toner supply supply rate with the fuzzy logic (PID)
used as the toner supply control method. This SP takes effect only if 1 or 2 is selected
for SP3301 to enable fuzzy logic as the toner supply method.
The machine reads 1) the maximum and minimum settings of this SP and 2) the toner
consumption of the output image surface (pixel count data). Then it calculates the
maximum and minimum amount of toner for that image. After this is done, toner supply
amount will not change during the job, even if Vt or any other measurement
determines that more toner is necessary.
001 Max Supply Rate:K
002 Max Supply Rate:M
003 Max Supply Rate:C
004 Max Supply Rate:Y
005 Min Supply Time:K
006 Min Supply Time:M
007 Min Supply Time:C
008 Min Supply Time:Y
3306 Tnr Supply Coeff
These SPs set the toner supply coefficients for the fuzzy logic method of toner
supply control.
Note: These SP codes operate only when 1 or 2 is selected for SP3301.
001 – 004 Ratio Coeff1:K, M, C, Y
021 – 024 P_Vt_Coeff:K, M, C, Y
025 – 028 I_Vt_Coeff:K, M, C, Y
029 – 032 Si:K, M, C, Y
033 – 036 P_Px1_Coeff1:K, M, C, Y
037 – 040 P_Px1_Coeff3:K, M, C, Y
Toner Supply Rate: Display
[0~100/1%]
Set Upper/Lower Limits for Toner Supply
[0~100/1%]
[0~1000/1 ms]
Set Toner Supply Coefficient
[0~4300/1]
[0~100/1%]
[0~1000/1]
[-500~500/0]
[0~100/1%]
[0~255/1]
5-85
SERVICE PROGRAM TABLES