The lift motor is driven to rotate the carriage height changing cam within the carriage, in sync with which the lift cams on both sides of the carriage move the head

holder up and down, thereby varying the separation between the face of the printhead and the paper.

The printhead height is detected from the lift cam sensor within the carriage and the distance of rotation of the lift motor.

g) Slant adjustment unit

The tilting of the head is adjusted with the slant adjustment lever.

The point where the slant adjustment lever axis touches the head holder is offset from the fulcrum of the lever axis. Therefore, the printhead is tilted by moving the

slant adjustment lever and moving the position on the right side of the head holder back or forward.

h) Multi Sensor

A photo reflective type multi sensor consists of three red LEDs, one red/blue/green LED array, and three light receiving sensors and is used for media end, skew,

and width adjustment, registration adjustment, head height adjustment, and print position adjustment.

The multi sensor reference has three white plates attached to it, so that a reference value can be calculated during carriage height measurement by measuring the

intensity of light reflected upon the white plates.

(Service mode: SERVICE MODE>ADJUST>GAP CALIB.)

i) Shaft cleaner units

The shaft cleaners mounted at the left and right of the carriage are used to clean the carriage and apply oil to the shaft.

Slant Adjustment Lever

Head Holder

Lift Cam Sensor

Shaft Cleaner

Multi Sensor Reference

Multi Sensor

Linear Scale

Head Management Sensor