Olivetti d-Copia 300 Service Manual page 252

(5) Detaching and refitting the ISU (reference)
Take the following procedure when the ISU is to be checked or replaced.
Caution:
After replacing the ISU, make a test copy and check the copy image. If the image is incorrect, perform the adjustments
(see pages 1-6-25 to 31).
ISU installation requires the following tools:
Two positioning pins (P/N 1856812)
Procedure
• Detaching the ISU
1. Remove the contact glass (see page 1-6-19).
2. Remove the rear and shield covers and
detach connector YC34 on the main PCB.
3. Remove the eight screws holding the ISU
cover and then the cover.
4. Remove the two screws holding the original
size detection sensor retainer and then the
retainer.
5. Remove the four screws holding the ISU and
then the ISU.
6. Check or replace the ISU.
Figure 1-6-46
ISU cover
Figure 1-6-47
Original size detection sensor retainer
ISU
Figure 1-6-48
2FD/2FF/2FG
YC34
1-6-23