Paper Level Detection - Minolta EP5000 General, Mechanical/Electrical

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL
97.04.01
1156SBM1803A

18-3. Paper Level Detection

D The amount of paper still available for use, or the paper level, of the 1st and 2nd
Drawer is detected by 1st/2nd Drawer Lift-Up Motor Pulse Sensor PC67/68 and a
pulse disk.
D The pulse disk is mounted on the shaft of the intermediary gear that transmits drive
from the Lift-Up Motor (M13/14). The speed of the pulse disk varies with different
paper levels and the number of pulses detected by the Lift-Up Motor Pulse Sensor
(PC67/68) is used to determine the paper level.
D Counting of the number of pulses is started when the Lift-Up Motor (M13/14) is en-
ergized and continues until the output from the Lift-Up Sensor (PC65/66) goes
LOW. The total number of pulses is translated into the amount of paper which is
shown on the Touch Panel as a graphic marker in units of 50 sheets of paper.
D As the paper is consumed and the top level of the paper stack lowers, the Lift-Up
Motor is energized to raise the paper stack. During this time, the Lift-Up Motor Pulse
Sensor (PC67/68) detects pulses and that pulse count is accumulated. When the
count reaches 50 sheets of paper, one segment of the paper level indicator on the
Touch Panel goes out.
Pulse Disk
Control Signal
PC67 PWB-A PJ23A-2
PC68 PWB-A PJ23A-5
1st/2nd Drawer Lift-
Up Motor M13/14
1st/2nd Drawer Lift-Up
Motor Pulse Sensor
PC67/68
D 350 to 500 sheets
D 500 sheets up
1134M020AA
Blocked Unblocked
L
L
M-65
*Paper Level Indicator
D 1 to 50 sheets
1134M058AA
D 50 to 200 sheets
1134M059AA
D 200 to 350 sheets
1134M060AA
1134M061AA
1134M062AA
WIRING DIAGRAM
H 32-I (41-K)
H 32-J (41-N)