Take-Up Drive Assembly - AGFA Avantra 36/44 Service Manual

Section I: Imagesetter
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Figure 2-15 Media punch/clamp assembly.
–Punch assembly. –Sensor. –Punch assembly motor.
All punches operate the same way. A gear motor turns a shaft that actuates a pres-
sure plate (clamp) and a rocker mechanism. The rocker assures punch engagement
regardless of punch location. Optical switches indicate positions for home, clamp
and punch. All punched holes are completed with a single actuation of the punch
assembly.

2.14.4 Take-up Drive Assembly

The take-up drive assembly applies the appropriate pressure to the take-up drive
rollers and pushes the media into a take-up cassette or into an on-line bridge.
The take-up drive assembly consists of two identical drive housings, one called the
outer nip drive system and the other called the inner nip drive system. Both nip
systems contain a pair of gear driven rollers, each with a center rubber section.
The roller nip pressure is fixed by a pair of steel drive disks, one located at each
end of the drive rollers.
2.14.4.1 Inner Nip Drive System
The inner nip drive system contains the take-up jam sensor and the servo motor/
encoder, which changes the speeds of the take-up drive assemby. Refer to Figure 2-16.
Functional Analysis 2-29