Moving the Carriage
CarriageDrive Mechanics
Motor, Belt and Pulley
The carriage (Y4axis) drive consists of a DC motor directl2 driving a single belt and the carriage.
The motor assembl2 itself provides the tension needed on the belt, eliminating the need for a separate pulle2 tensioner.
The belt clamps itself to the carriage; there are no separate belt clamps.
The interface between the motor shaft and belt is friction based.
You can remove the belt without having to remove the pulle2 on the left end of the belt.
Carriage Guidance
The carriage moves along on just one stainless steel slider rod. It is guided b2 two integrated bronze bushings, which are self4lubricating, and a back wheel.
Positional Feedback
An encoder strip provides feedback on the position of the carriage. The strip does not require adjustment.
Carriage PCA
The carriage PCA is based on that of the DesignJet 650C. It connects to the main PCA through a long 604conductor (2x30) trailing cable. The carriage PCA contains:
Optical line sensor
Thermistor circuit
Linear encoder
Cartridge nozzle firing circuit
Some electronic components on the DesignJet 450C and 450CA carriage PCA are not present on the DesignJet 430 carriage PCA. At power4on the Printer firmware identifies whether the carriage is for a color or a monochrome model, and behaves accordingl2.
HP DesignJet 430, 450C and 455CA Printers | Functional Overview |