HP Scitex LX820 User manual

SCITEX Dual Roll Kit
User’s guide

© 2011 Hewlett-Packard Development
Company, L.P.
First edition
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Table of contents
1 Introduction ...................................................................................................................... 1
Purpose .................................................................................................................................. 1
Main components .................................................................................................................... 1
Requirements ........................................................................................................................... 1
2 Use of the dual-roll spindle ............................................................................................... 2
Load rolls onto the spindle ......................................................................................................... 2
Load rolls into the printer ........................................................................................................... 5
3 Troubleshooting .............................................................................................................. 10
4 Specifications .................................................................................................................. 11
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1 Introduction
Purpose
The purpose of this document is to describe how to install, use and troubleshoot the Dual Roll used in
the following Printers:
●HP Scitex LX800 Printer (126-in)
●HP Scitex LX820 Printer (126-in)
●HP Scitex LX850 Printer (126-in)
●HP Scitex LX600 Printer (104-in)
●HP Designjet L65500 Printer (104-in)
For information about using these printers, refer to the corresponding User Guide or Maintenance and
Troubleshooting Guide.
Main components
The Dual Roll Kit includes the following components.
●Two dual-roll spindles, each including one differential hub
●One pair of substrate edge holders
●One Allen key
Requirements
Before using the Dual Roll Kit with an HP LX Designjet printer, you must check that the printer's firmware
and HP Internal Print Server software are up to date.
Go to http://www.hp.com/ and click Support & Drivers > Download drivers and software
(and firmware), enter the product name, click the name of your operating system, and download the
latest firmware and the latest Internal Print Server, if you do not already have them.
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Introduction

2 Use of the dual-roll spindle
Load rolls onto the spindle
The dual-roll spindle is marked to assist you in positioning the differential hub.
NOTE: The spindle marked Ais for the dimensions of the 126-in spindle. The spindle marked Bis for
the dimensions of the 104-in spindle.
Loading the dual-roll spindles
1. Ensure that the differential hubs on the input and output spindles are aligned with each other.
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Dual-roll spindle

2. When both differential hubs are correctly positioned, use the Allen key to tighten the screws and
secure them in place. If a differential hub is loose, the substrate could become skewed during
printing.
TIP: You should tighten the screw until the washer touches the bolt. If you can still see the yellow
spring, tighten the screw further.
3. At each end of the spindle, unscrew and remove the outer parts of the hub, using the Allen key.
4. Unscrew and remove the inner part of each hub.
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Dual-roll spindle

5. Insert the first roll on the spindle.
6. Replace the hub, and secure it with the Allen key.
7. Insert the second roll on the spindle.
8. Replace the hub, and secure it with the Allen key.
9. Ensure that the end of the right-hand roll is located within the maximum allowed distance from the
right-hand end of the spindle: it should be between the gear and the dashed line.
10. Ensure that the roll core fits tightly on the hub.
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Dual-roll spindle

11. Ensure that the roll core fits tightly on the differential hub.
12. Load the spindle at the rear of the printer, and secure the spindle latches.
13. Use the same process to load the output spindle at the front of the printer, but load the spindle with
two empty cores to receive the printed substrate.
Load rolls into the printer
The two substrate rolls are mounted on the rear dual-roll spindle and will be collected on the front dual-
roll spindle. The substrate goes from the rear spindle over the main roller, over the platen, over the front
roller and then to the front spindle.
NOTE: You can load substrate with the printed face inwards or outwards on the spindle, in which
case the spindle will turn in the opposite direction. The printer asks you for the winding direction if it
cannot detect it automatically.
Before loading two rolls into the printer, you must have both rolls loaded on the rear dual-roll spindle
and two empty cores loaded on the front dual-roll spindle. See Load rolls onto the spindle on page 2.
1. Tell the printer that you are going to begin loading for dual-roll printing.
2. Remove the substrate edge holders in the print platen, or move them aside, so that they do not get
in the way while loading the substrate.
CAUTION: Loading the substrate on top of the edge holders could severely damage the
printheads and carriage.
3. Lift the substrate pressure handles at the rear of the printer.
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Dual-roll spindle

4. If you need to raise the carriage beam, go to the front panel and select the Substrate menu ,
then Substrate management, and press OK. Select Carriage beam position > Move to
highest position. This process takes about 2 minutes to complete.
The printer raises the carriage beam, making it easy to insert the substrate. This process takes
about 2 minutes to complete. During this period, you can load the input and output rolls.
NOTE: While the carriage beam is rising, you can stop it by pressing the Cancel key.
5. You may find it helpful to lock the differentials on the input and output spindles while loading.
6. Bring the new rolls on their spindle to the rear of the printer, with the geared end of the spindle on
the left.
7. If the two rolls are of unequal lengths, the longer roll should be on the right as seen from the front
of the printer; on the left as seen from the rear.
NOTE: When the shorter roll comes to an end, you should lock the differential hub if you intend
to continue printing on the longer roll.
8. Rest the ends of the spindle on the platforms provided at the rear of the printer; plastic pads are
provided to absorb the impacts.
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Dual-roll spindle