24 February, 1999TONER SUPPLY CONTROL
Image Area Ratio
This is a measure of how much toner will be needed for each color on a page.
From the image data from the image processing unit (IPU), the machine
determines the total amount of the color on the page. It takes into account the
grayscale values for each pixel for that color.
Detailed2.2.5 FIXED SUPPLY MODE
Descriptions
In fixed supply mode, the machine adds a fixed amount of toner to the developer
every copy. Readings from the ID sensor are ignored.
SP 2-208-005 to 008 define the toner supply ratios for each color in fixed supply
mode.
2.2.6 TONER SUPPLY IN ABNORMAL SENSOR CONDITIONS
The machine detects that the ID sensor is abnormal iSGf v tahe lue idetsected V
out of the required range three consecutive times during process control. After that
SC 385 is displayed and logged. Switching the main switch off/on recovers the
machine and the toner supply method falls back to fixed supply mode.
If the abnormal condition is recovered during the next process control, the machine
automatically selects the fuzzy control mode again.
2-15 |
ACEC
