Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL
97.04.01
M-65
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.
D
1 to 50 sheets
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50 to 200 sheets
D
200 to 350 sheets
D
350 to 500 sheets
D
500 sheets up
1134M058AA
1134M059AA
1134M060AA
1134M061AA
1134M062AA
*Paper Level Indicator
1st/2nd Drawer Lift-
Up Motor M13/14
1st/2nd Drawer Lift-Up
Motor Pulse Sensor
PC67/68
Pulse Disk
1134M020AA
Control Signal
Blocked
Unblocked
WIRING DIAGRAM
PC67
PWB-A PJ23A-2
L
H
32-I (41-K)
PC68
PWB-A PJ23A-5
L
H
32-J (41-N)