Service manual

THEORY
SERVICE MANUAL
Mechanical
1-7
1.2.2. Carriage Assembly
The carriage assembly consists of the carriage and ink cartridge (the cartridge contains
the ink jet nozzles). The carriage consists of the head locker and locker spring, the
rubber pad, and the flat cable. The flat cable connects to the main PCB. See Fig. 1.6.
The printer flat cable must be firmly in contact with the ink jet cartridge for printing to be
enabled. The flat cable is located in the carriage by four alignment pins; proper
alignment of the cartridge to the cable is established in three datums (reference
planes/points): X, Y, and Z. When the cartridge is installed in the carriage, the flat cable
contacts are compressed against the cartridge contacts by the rubber pad. See Figs.
1.7 and 1.8.
Fig. 1.6 Printer Flat Cable to Main PCB