●
The Encoder disc is a round disc mounted to the left end of the Drive Roller.
●
The Encoder PCA is mounted with a sensor that reads the encoder movements of the disc (the disc turns
with the drive roller).
Pinchwheels
The pinchwheels press the substrate against the Drive Roller to make sure that the Drive Roller can advance
the substrate correctly.
●
The pinchwheels are activated with the blue lever at the right side of the substrate roll and usually do
not have to be lifted unless to correct skew during substrate load or to clear jams.
●
The pinchwheel system has a sensor that detects if the system is up or down.
Vacuum pump, vacuum tube assembly, vacuum beam
The print zone is the area of the substrate path where the transmission of ink to the substrate occurs. The
main function of the system can be defined as providing the surface where the substrate is printed, keeping it
controlled during the process, playing a main roll on the final IQ of the plots and on the operational reliability
of the printer. The subsystem is composed of the print platen assembly, which is the physical interface with
the substrate, and the vacuum system which is the mechanical system where the vacuum pressure used to
control the substrate is generated and conduced.
The platen gives a convenient shape to the wet substrate, avoiding uncontrolled expansion of the substrate.
The main components are:
●
Platen assembly
◦
Front platens, rear platens, OMAS platen
◦
Linear blade 64-inch + springs (same as DJ Z6100 or L26500)
◦
Foams, foam fillings, and foam wall
●
Right vacuum fan assembly with EOLA control board (as with the HP Designjet Z6200 or T7100)
Related tests, utilities, and calibrations
●
Rewinder test
2.1 Rewinder System on page 147
●
Drive Roller test
2.2 Drive Roller on page 147
●
Substrate Path sensor test
2.3 Substrate Path Sensors on page 148
●
Vacuum Test
●
OMAS Test
2.4 OMAS Module on page 148
●
Rewinder Motor polarity test
●
Substrate path menu
1.3 Substrate Path Menu on page 166
●
Substrate advance adjustment
2.3 Substrate Advance Menu on page 175
Service parts
●
Drive Roller
●
Substrate Path Assemblies
●
Center guide Pinchwheels Assemblies
ENWW Substrate path 27