FrameMaker Ver.5.5E(PC) Di350 GENERAL, MECHANICAL/ELECTRICAL
98.12.18
M-28
1171SBM1303A
•
The ATDC Sensor automatic adjustment is made when a new I/C is installed in the
copier. Toner replenishing control is thereafter controlled as detailed in the following.
1. ATDC Sensor Automatic Adjustment
•
The ATDC Sensor is automatically adjusted when a new I/C is loaded in the copier. Dur-
ing this sequence, the copier reads the sensor output value and sets it as the reference.
This reference value is stored in memory and used until the I/C reaches its service life.
2. Toner Replenishing Control
•
While the I/C Motor is turning, the ATDC Sensor samples T/C and, according to the read-
ings, the copier provides the following controls.
✽
Toner replenishment represents the operation of the Sub Hopper Toner Replenishing
Motor.
3. Toner Empty Control (T/C Recovery Mode)
•
When the control is passed onto the T/C recovery mode, the Sub Hopper Toner Replen-
ishing Motor is energized to replenish the supply of toner into the Developing Unit and, if
T/C is recovered to a level of 14% or higher (2.32V or less) within 150 sec., it resets the
toner-empty condition.
13-3. ATDC Sensor
T/C Ratio (%) Sampling Data (V) Control Details
More than 19 Less than 1.41 Defective ATDC Sensor
14 to 19 2.32 to 1.41 Toner replenished for 0 msec.
13 to 14 2.50 to 2.32
Toner replenished for 54 msec. at intervals of
approx. 1 sec.
12 to 13 2.68 to 2.50
Toner replenished for 150 msec. at intervals of
approx. 1 sec.
10 to 12 3.10 to 2.68
Toner replenished for 378 msec. at intervals of
approx. 500 msec.
7 to 10 3.92 to 3.10 Passed onto the T/C recovery mode.
Less than 7 More than 3.92 Defective ATDC Sensor
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