Paper Take-Up Retry Control; Paper Take-Up Interval Control; Double Feed Paper Take-Up Control - Minolta EP3010 Manual

1173SBM160702A

(2) Paper Take-Up Retry Control

• To minimize the occurrence of paper misfeed due to a slippery Paper Take-Up Roll, the
Paper Take-Up Motor is kept deenergized for a given period of time before it is energized
again, if a sheet of paper fails to reach the Paper Take-Up Sensor even after the lapse of
a given period of time after the motor has first been energized. (This is referred to as the
paper take-up retry function.)
• A misfeed results if the sheet of paper does not reach the Paper Take-Up Sensor even
after three paper take-up sequences.
1173SBM160703A

(3) Paper Take-Up Interval Control

• The Paper Feed Roll and Separator Roll may sometimes fail to separate the subsequent
sheet of paper properly and the leading edge of that paper may be beyond the Feed and
Separator Rolls inside the copier. If the next paper take-up sequence is started in this
condition, the distance between the preceding and the current sheet of paper will
become shorter than normal, resulting in a misfeed.
• To maintain a given paper take-up interval, therefore, this copier provides the following
control. If it takes the paper more than a specified time to block (L) the Paper Take-Up
Sensor after the Paper Take-Up Motor has been energized, the Paper Take-Up Motor is
temporarily deenergized and, an appropriate period of time thereafter, it is energized
again (paper take-up interval control).
1173SBM160704A

(4) Double Feed Paper Take-Up Control

• Even if the Paper Take-Up Roll takes up two sheets of paper at one time, the double feed
paper take-up control uses the second sheet of paper for the next copy cycle without
causing a paper misfeed. It eliminates a paper misfeed that would otherwise result when
two sheets of paper are taken up at once.
• If the second sheet of paper is stationary blocking the Paper Take-Up Sensor when the
trailing edge of the first sheet of paper moves past the Vertical Transport Sensor, the
copier determines that it is a double feed condition and provides double feed control.
(The first drawer does not have double feed paper take-up control.)
• If, however, the second sheet of paper has reached the Vertical Transport Roller, the dou-
ble feed control is not provided since the paper is fed further into the copier by the Verti-
cal Transport Roller. This could result in a paper misfeed or the second sheet of paper
being fed through the copier with the first one.
Paper Path
Vertical Transport Sensor
PC64 Detection Point
2nd Drawer Paper Take-Up
Sensor PC56 Detection Point
Position of Leading Edge of 2nd Sheet of Paper
Double Feed Control
(Not Provided)
(Provided)
1173M003AA
M-60
For Paper Feeding
from 2nd Drawer