MX-ST10. Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 7

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MX-ST10  OPERATIONAL DESCRIPTIONS  3 - 2
3.  Top tray paper exit
(1) Outline of paper feed out operation
Transported paper is fed out to the top side by the path gate solenoid 1 (SL01) immediately after the entrance roller, and fed out to the top
path by the path gate solenoid 2 (SL02), and fed out to the top tray. By the top path exit roller. 
(2) Feed out motor start timing
The feed motor is started after reception of the paper attribute data. The top path exit motor is started by detection of the entrance sensor.
(3) Feed out speed control in top tray paper exit
Detection of the paper lead edge by the top path exit sensor triggers the paper feed out speed control.
When the paper rear edge reaches the point 10mm away from the top path exit sensor, speed reduction is started. The speed is reduced
to 200mm/sec when the paper is discharged.
The timing of paper feed out speed reduction is calculated from the timing of detection of paper by the top path exit sensor and the length
of paper which is known in advance.
(4) Feed out motor stop timing
The feed out motor is stopped when there is no paper in stacker after reception of the STANDBY signal from the main machine.
The feed motor stops when next paper is not detected by the entrance sensor within 1000msec from detection of paper by the top path
exit sensor. 
The top path exit motor is stopped when next paper is not detected by the entrance sensor within 1000msec from detection of paper by
the top path exit sensor.
4.  Paper exit to the stack tray
(1) Outline of paper feed out operation
Transported paper is fed out to the stacker side by the path gate solenoid 1 (SL01) immediately after the entrance roller, and is fed out to
the stack tray by the stack feed exit roller. 
(2) Feed out motor start timing
The feed motor is started after reception of the paper attribute data. The stack feed exit motor is started by detection of the entrance sen-
sor. 
(3) Feed out speed control in stack tray paper exit
When the entrance sensor detects paper, acceleration is started. When the stack path exit sensor detects paper, deceleration is started,
and paper is discharged at the speed of 500mm/sec.
(4) Feed out motor stop timing
The feed out motor is stopped when there is no paper in stacker after reception of the STANDBY signal from the main machine. 
The feed motor is stopped when next paper is not detected by the entrance sensor within 1000msec from detection of paper by the top
path exit sensor.
The top path exit motor is stopped when next paper is not detected by the entrance sensor within 1000msec from detection of paper by
the top path exit sensor.
Paper lead edge
Paper rear edge
Speed reduction end position
Speed reduction start position
Switch to paper exit speed
Switch to paper feed out speed
Paper exit speed during this period
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