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Technology > Pickup / Feed System > Pick-up Area Control/Function > Lifter control
Technology > Pickup / Feed System > Pick-up Area Control/Function > Lifter control
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Timing for lifter control
When the power is turned ON
After the lifter is moved up until the paper surface sensor 2 is turned ON to determine the
presence of paper, the lifter is moved down to the lower limit position to reset the count for
paper remaining level.
If there is no paper, the machine executes auto airflow adjustment of the fan. After the lifter
is moved up until the paper surface sensor 2 is turned ON, the lifter is moved down to the
supply position (where the storage supply position sensor is turned OFF→ON→OFF).
If there is paper, there is no auto airflow adjustment of the fan and the lifter is moved up until
the paper surface reaches the pickup-available area (the paper surface sensor 2 is turned
ON).
When the deck is open
MEMO :
The lifter is moved down to the lower limit position when the power is turned ON while
the deck is open. There is no auto airflow adjustment of the fan although the count for
paper remaining level is reset.
When detecting that the open button is pressed, opens the deck after moving the lifter down
for 1.0 sec.
The lifter is moved down to the supply position.
When the deck is closed
The lifter is moved up until the paper surface reaches the pickup-available area (the paper
surface sensor 2 is turned ON).
In the case that the paper's trail edge is higher than the lead edge when paper is set, the lifter
can reach the upper limit for the trail edge paper surface detection (the trailing edge sensor
1 is turned OFF and the trailing edge sensor 2 is turned ON) before the lifter reaches pickup-
available area (the paper surface sensor 2 is turned OFF).
In such case, the lifter is moved up for 300 msec at a maximum (approx. 3 mm). The lifter is
stopped once the paper surface sensor 2 is turned ON within 300 msec.
When preparing pickup
The machine executes the first sheet lift down limit control and the paper surface height
control.
1) The lifter's position (encoder count value) is memorized.
2) Each fan is driven with appropriate airflow amount according to the condition of paper size
and environment.
3) The lifter is stopped after performing the following operation for 10.0 sec at a maximum.
The lifter is moved up if the paper surface is lower than the middle of the pickup-available
area (the intermediate paper surface sensor is turned OFF).
The lifter is moved down if the paper surface is higher than the pickup upper limit (the
paper surface sensor 1 is turned OFF, the paper surface sensor 2 is turned ON). The lifter
repeats movement to stop for 700 msec after moving down for 300 msec.
The lifter is stopped once the paper surface reaches the appropriate position (both the
intermediate paper surface sensor and the paper surface sensor 1 are turned ON).
4) The lifter executes the following movement for about 3.0 sec.
The lifter is moved up until it reaches the specified level if the lifter is lower than the
specified level from the position that has been memorized in step 1).
The lifter is stopped once the lifter is within the specified level. However, if the intermediate
paper surface sensor is turned OFF, the lifter is moved up until the sensor is turned ON.
5) The pickup solenoid is turned ON.
During pickup
The machine executes paper surface height control.
The deck pickup solenoid is turned ON if the paper surface is higher than the pickup lower
limit (the paper surface sensor 2 is turned ON) after the trail edge of the preceding paper
goes through the pull-out sensor (ON→OFF).
Pickup is available if the paper is attracted to the suction belt (suction end sensor is turned
ON) 140 msec after the pull-out sensor is turned OFF.
If the paper is not attracted (the suction end sensor is turned OFF), pickup becomes available
after waiting for 300 msec at a maximum. Pickup is available once the suction end sensor is
turned ON within 300 msec.
Pickup starts if there is enough sheet-to-sheet distance with the preceding paper while the
machine is at pickup-available state.
The deck pickup solenoid is turned OFF once the paper's lead edge goes through the pull-out
sensor.
* : In the case that the paper surface sensor 2 is OFF even 140 msec has passed after the
pull-out sensor was turned OFF, the deck pickup solenoid is turned ON after waiting for
1 minute at a maximum. The deck pickup solenoid is turned ON once the paper surface
sensor 2 is turned ON within 1 minute.
Содержание imagePRESS 1110
Страница 242: ...3 3 Periodical Service Periodical Service Periodical service item ...
Страница 655: ...5 5 Adjustment Adjustment Overview When replacing parts Major adjustment ...
Страница 733: ...7 7 Error Code Error Code Overview Location Code Pickup Position Code Pickup size Error Code Jam Code Alarm Code ...
Страница 944: ...8 8 Service Mode Service Mode Overview COPIER FEEDER SORTER BOARD Situation Mode ...
Страница 1555: ... Service Tools General Circuit Diagram General Timing Chart Operator Maintenance Appendix ...