16-3.Paper Level Detection; Paper Level Detection - Minolta EP3010 Manual

1173SBM1603A

16-3. Paper Level Detection

• 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 and a pulse disk.
• The pulse disk is mounted on the shaft of the intermediary gear that transmits drive from
the Lift-Up Motor. The speed of the pulse disk varies with different paper levels and the
number of pulses detected by the Lift-Up Motor Pulse Sensor is used to determine the
paper level.
• Counting of the number of pulses is started when the Lift-Up Motor is energized and con-
tinues until the output from the Lift-Up Sensor 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.
• 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
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 PJ19A-2
PC68 PWB-A PJ19A-5
1st/2nd Drawer Lift-
Up Motor M13/14
1st/2nd Drawer Lift-Up
Motor Pulse Sensor
PC67/68
1134M020AA
Blocked
L
L
M-51
Paper Level Indicator
• 1 to 50 sheets
• 50 to 200 sheets
• 200 to 350 sheets
• 350 to 500 sheets
• 500 sheets up
Unblocked WIRING DIAGRAM
H
H
1134M058AA
1134M059AA
1134M060AA
1134M061AA
1134M062AA
17-F
17-F