Riso RP-255, Technical Manual

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SECOND PAPER FEED SECTION
[ 5 - 5 ]
1) Pressing the (up) key on the panel
A: Main cam
B: Print-positioning plate ass’y
C: Print-positioning cam
D: Print-positioning lever ass’y
E: Bearing
When the key is pressed, the print-
positioning cam [C] and print-positioning plate
ass’y [B] move in the directions indicated by
arrows.
The movement of the print-positioning plate
ass’y [B] also moves the print-positioning
lever ass’y [D], and the bearing [E] in contact
with the main cam [A] moves in the direction
indicated by arrows.
The timing of the contact of the bearing [E]
against the main cam [A] is advanced,
causing the second paper feed timing to
advance, and moves the print position up.
2) Pressing the (down) key on the panel
When the key is pressed, the print-
positioning adjuster cam [C] and print-
positioning adjuster plate ass’y [B] move in
the directions indicated by arrows.
The movement of the print-positioning plate
ass’y [B] also moves the print-positioning
lever ass’y [D], and the bearing [E] in contact
with the main cam [A] moves in the direction
indicated by arrows.
The timing of the contact of the bearing [E]
against the main cam [A] is delayed, causing
the second paper feed timing to delay, and
moves the print position down.
A
B
C
A
E
D
D
A
B
C
A
E
0506
0507