GBC FusionPunch II Service Manual page 353

Principles of Operation
Paper Path (Sequence of Operation) Continued
Exit Sensor
The trail edge of the sheet now has 200ms to clear the Exit Sensor. If
the sheet blocks the Exit Sensor longer than 200ms, the FusionPunch II
will turn OFF the S1 signal and then display Jam at Exit Sensor on the
LCD.
As the lead edge of the sheet reaches the Exit Sensor, the Little Star
Controller looks at the state of the Stacker Upper Switch and performs
the following:
1. If the Upper Switch is in the Open State (Upper Switch is NO),
the Little Star Controller will turn ON the Stacker Tray Motor
for 20ms.
- If a Second Stacker is active, the principles for the Stacker
Tray Motor is the same except that it will be triggered as
the lead edge reaches the Stacker Bypass Sensor.
2. If the Upper Switch is in the Closed State, the Little Star Con-
troller will NOT turn ON the Stacker Tray Motor.
- If a Second Stacker is active, the principles for the Stacker
Tray Motor is the same except that it will be triggered as
the lead edge reaches the Stacker Bypass Sensor.
Once the trail edge of the sheet of paper has cleared the Exit Sensor, the
Little Star Controller knows that the sheet has been completely pro-
cessed and then sends the S3 signal back to the printer.
- If a Second Stacker is active, the S3 will be sent as the trail
edge clears the Stacker Bypass Sensor.
When all requirements are met as specified above, the sheet will begin
to make its way to the Stacker Bypass Sensor (explained below).
GBC FusionPunch II Service Manual
Exit Sensor / Stacker Bypass Sensor
Note: There is no check for the sheet of paper to make it from Exit sen-
sor to the Stacker Bypass Sensor within a specified time.
The trail edge of the sheet of paper now has 200ms to clear the Stacker
Bypass Sensor. If the sheet blocks the Stacker Bypass Sensor longer
than 200ms, the FusionPunch II will turn OFF the S1 signal and then
display Jam at Stacker Bypass Sensor on the LCD.
- If a down stream device is active, then the Little Star
Controller will recreate the timings specified by their profile
and then send the Command signals to the down stream device.
Opto Relays
The Back Gauge Solenoid, the Sheet Eject Solenoid, the Punch Clutch
Solenoid, and the Stacker Tapper Solenoid are controlled by Optical
Isolation (Opto) Relays on the Stacker and Punch I/O PWB's.
The operation of the Opto relays is as follows:
They work exactly like a Solid State Relay, except there is no physical
electrical connection between the input and output of the Opto Relay.
They are optically connected. Therefore, when you supply 24 VDC
across the input of these relays, the input sends an optical signal to the
output creating a direct short across the output connections.
12/2003
6-81
Principles of Operation