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Chapter 4
4-33
4.5 Adjustment and Setup Items
4.5.1 Adjustment Item List
0017-5609
The following adjustment procedures need to be performed when parts have been replaced or remove and then
reinstalled:
T-4-1
4.5.2 Procedure after Replacing the Feed Roller or Feed Roller Encoder
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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 replacing the feed roller 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
If adjustment cannot be done properly by selecting "SERVICE MODE > ADJUST > PRINT PATTERN > LF
TUNING" (auto adjustment), carry out manual adjustment.
Service mode : SERVICE MODE > ADJUST > PRINT PATTERN > LF TUNING2
Media type : Photo glossy paper
Media size : Media having awidth equal to or larger than that of A2-size paper
Check the printed pattern and enter values for adjustment.
4.5.3 Procedure after Replacing the Carriage Unit or Multi Sensor
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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.
-Service mode : SERVICE MODE > ADJUST > GAP CALIB.
-Service mode : SERVICE MODE > ADJUST > PRINT PATTERN > OPTICAL AXIS
Media type : Photo glossy paper
Media size : Media having a width equal toor larger then that of A2-size paper
Adjustment item Adjustment timing
Multi sensor recalibration Multi sensor replacement/removal
Carriage unit replacement/removal
Adjusting feed roller eccentricity Feed roller
Feed roller encoder
Head management sensor recalibration Head management sensor replacement/
removal
Carriage unit replacement/removal