Canon LASER CLASS 730i Service Manual page 267

b-4) Attaching to the main unit
(1) Secure the dual-line unit with two screws (a) and then secure with two screws (b).
At this time, make sure that the cable connected to the connectors J202 and J203 of
the power supply unit sticks to the right of the dual-line unit, being careful so that the
dual-line unit will not impose itself against the cable. Moreover, see to it that the cable
so routed will not force itself against the electrical components of the power supply
unit.
Screws (a)
Figure 5-66 Dual-line Upgrade Kit III Installation 1
(2) Connect the 14-pin cable to the connector J204 to the power supply unit.
(3) Connect the 40-pin cable to the connector J31 of the dual-line unit, and then secure it
in place using clamps.
Figure 5-67 Dual-line Upgrade Kit III Installation 2
LASER CLASS 730i/720i/710 Chapter 5: Appendix
Dual-line unit
Screws (b)
Connector J204
5-59
Connector J31
Clamps