Double Punch (Mid Punch + Trail Edge Punch); Bypass Path - GBC StreamPunch Ultra Service Manual

Double Punch (Mid punch + trail edge punch)

The sheet enters at roller N1 running at printer line speed.
When the lead edge of the sheet reaches S5 (plus a delay to ensure the
sheet is in roller N5) the sheet is accelerated to system speed of
1300mm/s.
The sheet enters the steering rollers N6 & N7 and the angle of the sheet
is measured by S6-S10 and then deskewed by rollers N6 & N7.
After deskew the front edge of the sheet is moved to alignment sensor
S11-S15.
The sheet is transported by N6 & N7 until the trail edge is close to the
Backgage Sensors S18 & S19 for SEF A4/SEF LTR and S19 & S20 for
SEF A3/11x17.
The sheet is slowed and moves until the trail edge is detected at sensors
S18 & S19 for SEF A4/SEF LTR and S19 & S20 for SEF A3/11x17, at
which point it moves a further set number of steps (backgage) and stops.
The sheet is mid-punched.
Once the punch cycle is complete the sheet is accelerated by N6 & N7 to
the system line speed.
The front edge of the sheet is moved to Alignment Sensors S11-S15.
When the trail edge is close to the Backgage Sensors S16 & S17 the
sheet is slowed and moves until the trail edge is detected at S16 & S17,
at which point it moves a further set number of steps (backgage) and
stops.
The sheet is punched on the trail edge.
Once the punch cycle is complete the sheet is accelerated by N6 & N7 to
the system line speed.
Once the lead edge hits S24 (plus a delay to ensure the sheet is in roller
N10) the sheet is decelerated to the printer line speed.
General Procedures and Information

Bypass Path

If the Punch is not enabled, the Advanced Punch will run in bypass mode
(no punching).
The sheet enters the Punch at roller N1 running at printer line speed.
The Divert Solenoid SOL 1 is not activated, so the sheets are directed
into the bypass path.
When the lead edge of the sheet reaches nip 13, the sheet is detected by
Bypass Sensor S26,
The sheet is transported by N12, N13, N14, and N11 until the trail edge of
the sheet reaches Exit Sensor S26.
GBC StreamPunch Ultra/Ultra MP
11-05-2018
6-70