The carriage carries a carriage relay PCB, which relays printhead drive signals, and an encoder, which generates print timing signals. The carriage relay PCB is

connected to the main controller by a flexible cable.

c) Carriage drive function

The carriage is caused to reciprocate level on t he plat en by means of the carriage belt that is driven by the power imparted from the carriage motor.

d) Printhead maintenance function

This printer performs cleaning operations, such as wiping the printhead and sucking inks, with the carriage halted at its home position.

e) Nozzle check function

This printer carries out an ink discharge operation with the carriage halted at the maintenance jet tray, locating the nozzles in the printhead failing to discharge with

a head management sensor attached to the head management sensor.

f) Carriage height adjustment function

The separation between the face of the printhead and the paper varies with each paper thickness. A narrow gap makes quality better but could smear the print surface

as a result of paper rubbing against the face or cause damage to the nozzle assembly.

Head height (mm)

1.45

1.75

2.05

2.35

2.65

g) Paper width detection function/skew detection function

The multisensor attached to the lower left part of the carriage detects the width of paper fed on the platen and skews in it.

h) Automatic printhead position adjustment function

The multisensor attached to the lower left part of the carriage reads the result of an adjustment pattern printed, allowing for automatic adjustment of the printhead

position accordingly.

i) Remaining roll media detection function

The printer prints a bar code on roll media when they are unloaded. The multisensor attached to the lower left part of the carriage indicates the remaining volume

of roll media.

j) Internal unit temperature sensor

A thermistor installed on the head relay PCB detects the internal unit temperature near the printhead.

2-10

T-2-2

Media type Environmental condition

(Temperature:15-25,Humidity:40%-60%)

Glossy Paper,Plain Paper(Line drawing)

Plain Paper,Heavyweight Coated Paper(Line drawing)

Heavyweight Coated Paper

Premium Matte Paper

Premium Matte Paper(Temperature:15-30,Humidity:10%-40%)