General Information; Principle Of Operation; Punch Path; Single Punch - GBC StreamPunch Ultra Service Manual

General Information

Principle of Operation

The GBC StreamPunch Ultra/Ultra MP is a machine that punches various
die set hole patterns into single sheets of paper. The machine is placed
between a printer or copier and a finisher. The punch has two paper
paths.
• The punch path.
• The bypass section.

Punch Path

GBC StreamPunch Ultra/Ultra MP
If the Punch is enabled, the transport and punch motors are started, and
the Divert Solenoid SOL 1 is activated to direct the sheets into the punch
path.
There are two modes of operation Single Punch and Double Punch.

Single Punch

The sheet enters the Punch at roller N1 running at printer line speed.
When the lead edge of the sheet reaches Sensor 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 Sensors S6-S10 and is then de-skewed 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 S16 & S17.
The sheet is slowed and moves until the trail edge is detected at Sensors
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.
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General Procedures and Information