Canon LASER CLASS 730i Service Manual page 264

LASER CLASS 730i/720i/710 Chapter 5: Appendix
b) Installation
b-1) Precautions
The kit cannot be installed if the PCL unit (LASER CLASS 730i/720i or Printer Kit III)
has been already attached to the main unit. In this case, remove the PCL unit once, and
attach again with the kit.
b-2) Unpacking
Check that the box contains the dual-line unit, NCU board, modular board, modular cord,
cable (6-pin), cable (14-pin), cable (40-pin), flat cable, six screws and one tap screw.
b-3) Preparation
Perform the steps below before attaching the kit.
(1) Disconnect the modular cord (telephone line) from the fax.
(2) Disconnect the power cord of the fax unit at the power source.
Wait at least 10 minutes for the power supply unit to cool before continuing the work.
(3) Remove the two screws and remove the right cover.
(4) Working from the inside of the right cover, use a pair of sharp nippers to cut the
fasteners holding the square knockout for the Line 2 jack. Remove the knockout.
Make sure there will not be burrs around the cut-out.
Screws
Figure 5-61 Preparation for Installation 1
Figure 5-62 Preparation for Installation 2
5-56
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Right cover