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2. Detailed Descriptions
• The pre-stack paper stopper is released about 40 mm after the 2nd sheet turns on the pre-stack
stopper sensor [F], and the two sheets of copy paper are sent to the stapler tray. All sheets after the
2nd sheet go to the stapler tray via the paper guide [E].
Jogger Unit Paper Positioning
In the staple mode, as every sheet of paper arrives in the jogger unit, it is vertically and horizontally
aligned, then the staple edge is pressed flat to ensure the edge of the stack is aligned correctly for
stapling.
• Vertical Paper Alignment: About 60 ms after the trailing edge of the copy passes the staple tray
entrance sensor [A], the positioning roller motor [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 wait position about 7.2 mm wider than the selected paper size on
both sides.
• When the trailing edge of the paper passes the staple unit entrance sensor, the jogger motor moves
the jogger fences 3.7 mm towards the paper.
• Next, the jogger motor turns on again for 3.5 mm for the horizontal paper alignment then goes
back to the wait position.
• Paper Stack Correction: After the paper is aligned in the stapler tray, the left [J], center [K], and
right [L] stack plate motors switch on briefly and drive the front stack, center stack, and rear stack
plates against the edge of the stack to flatten the edge completely against the staple tray for
stapling.
• When the next copy paper turns on the stapler entrance sensor, the stack plate motor turns on and
returns to its home position. The home position is detected by stack plate HP sensor [M].
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