Oce 3121 Technical & Service Manual page 530

Retarding the copies
a) Stacking the copies (after first side was imaged)
The copy paper moves into the refeed unit, creating a bulge.
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1st copy paper being made to arch
1st copy paper being made to arch
The retarding roller rotates clockwise. This feeds the copy past the sensor
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PS12.
If the copy is size A4 or larger, solenoid SL4 is energised. This prevents the
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copy approaching the re-pick roller.
The retarding rollers are rotated in the reverse direction. The paper is carried
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back to a pre-determined position.
PS 12
Paper
Copy paper
506 TSM Océ 3121
PS 12
PS12
PS 12
PS12
PS 11
PS11
Retarding roller
Set-back rollers
Specific distance
PS12
Specific distance
Retarding roller
Set-back rollers
Paper
Copy paper
SL4
Deflector
Flapper
Re-pick up roller
Re-pick up roller
Re-pick up roller
Re-pick up roller
Functional description