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Section I: Imagesetter
Functional Analysis
2-29
Figure 2-15 Media punch/clamp assembly.
➀
–Punch assembly.
➁
–Sensor.
➂
–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.
1
3
2
Summary of Contents for Avantra 36/44
Page 1: ...The Avantra 36 44 Service Manual Part Number 580078 0002 ...
Page 24: ...Section I Imagesetter ...
Page 282: ...Section II Bridge ...
Page 327: ...Section III Buffer ...
Page 359: ...Section IV On line Processor ...
Page 462: ...Avantra 36 44 Service Manual B 2 Spare Parts Avantra 36 44 OLP Parts ...
Page 464: ...Avantra 36 44 Service Manual B 4 Spare Parts Avantra 36 44 OLP Parts ...
Page 466: ...Avantra 36 44 Service Manual B 6 Spare Parts Avantra 36 44 OLP Cassette Parts ...
Page 468: ...Avantra 36 44 Service Manual B 8 Spare Parts Avantra 36 44 OLP Feed Rack Parts ...
Page 470: ...Avantra 36 44 Service Manual B 10 Spare Parts Avantra 36 44 OLP Tank Parts ...
Page 472: ...Avantra 36 44 Service Manual B 12 Spare Parts Avantra 36 44 OLP Right Side View Parts ...
Page 474: ...Avantra 36 44 Service Manual B 14 Spare Parts Avantra 36 44 OLP Control Panel Parts ...
Page 476: ...Avantra 36 44 Service Manual B 16 Spare Parts Avantra 36 44 OLP Rack Spare Parts ...
Page 478: ...Avantra 36 44 Service Manual B 18 Spare Parts Avantra 36 44 OLP Dryer Spare Parts 18 ...
Page 480: ...Avantra 36 44 Service Manual B 20 Spare Parts Electronics upper Spare Parts ...
Page 482: ...Avantra 36 44 Service Manual B 22 Spare Parts Electronics lower Spare Parts ...
Page 484: ...C 1 Appendix C Wiring Diagrams ...
Page 491: ...Section V Crane ...