Jogger Unit Paper Positioning - Gestetner A294 Service Manual

2.3 JOGGER UNIT PAPER POSITIONING

In staple mode, each sheet of copy paper is vertically and horizontally aligned
when it arrives in the jogger unit.
Vertical Paper Alignment
Approximately 60 ms after the trailing edge of the copy passes the staple tray
entrance sensor [A], the positioning roller solenoid [B] is energized to push the
positioning roller [C] into contact with the paper. The positioning roller and
alignment brush roller [D] rotate to push the paper back and align the trailing edge
of the paper against the stack stopper [E].
Horizontal Paper Alignment
When the print key is pressed, the jogger motor [F] turns on and the jogger fences
[G] move to the waiting position, which is approximately 7 mm wider on both sides
than the selected paper.
When the trailing edge of the paper passes the staple unit entrance sensor, the
jogger motor turns on for approximately 32 ms (4.7 mm) to move the jogger fences
approximately 5 mm towards the paper. After a short time, the jogger motor turns
on again approximately 18 ms (3.0 mm) for the horizontal paper alignment then
goes back to the waiting position.
Paper Stack Correction
After the paper is aligned in the stapler tray, the stack plate motor turns [H] on for
short time to correct the paper stack and the stack plate [I] push the paper against
the staple tray.
When the next copy paper turns on the stapler tray entrance sensor, the stack
plate motor turns on gain to return to its home position. The home position is
detected by stack plate HP sensor [J].
SM
CÓPIA NÃO CONTROLADA
[C]
[F]
[G]
[I]
[J]
8-9
CÓPIA NÃO CONTROLADA
JOGGER UNIT PAPER POSITIONING
[A]
[E]
[B]
[D]
[H]
A294/A295