Feed roller eccentricity is factory-adjusted (correction of variation in the paper feed amount per rotation). It is necessary to adjust feed roller eccentricity after re-

placing the feed roller HP sensor or feed roller encoder.

In the service mode, perform automatic adjustment of feed roller eccentricity.

Service mode : SERVICE MODE > ADJUST > PRINT PATTERN > LF TUNING

Media type : Photo glossy paper

Media size : Media having awidth equal to or larger than that of A2-size paper

4.5.2 Procedure after Replacing the Carriage Unit or Multi Sensor

a) Multi Sensor Recalibration

Since multi sensors have individual electrical specificity, the following are recalibrated at the factory, namely, the optical axis of the sensor, the sensor gain for

measuring the printhead height and color reproduction. Accordingly, carry out the following adjustments in the service mode whenever replacing the carriage unit

or multi sensor.

The multi sensor reference plate must be replaced at the same time whenever the carriage or the multi sensor is being replaced.

4-22

Bearing

Permalube G No.2

approx. 24mg

Feed roller

Permalube G No.2

approx. 24mg

F-4-41

F-4-42

Permalube G No.2