HP Scitex LX850 HP Scitex LX850 & LX820 Printers: User's Guide - English - Page 38

Dual-roll printing, If you are a regular user of different substrate types

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5. Note the position of the end of the roll on the scale marked at the geared end of the spindle. Its position should be not less than 3.2 cm (1.25 in) on that scale, otherwise the substrate may go out of the print zone and start touching the printer covers. The input and output rolls should be positioned identically on their respective spindles. TIP: When loading heavy rolls of inelastic substrates that are approximately half the spindle length, you may find it useful to load the substrate closer to the center of the spindle, to reduce the risk of skew, wrinkles and telescoping. TIP: If the substrate is telescoped on the input roll, there is a risk of substrate jams and damage to the printheads. Try to straighten the edges of the substrate to minimize telescoping on the input roll before loading it into the printer. TIP: Check that the substrate is attached to the input core. The roll is now ready to be loaded into the printer. TIP: If you are a regular user of different substrate types, you can change rolls more quickly if you preload rolls of different substrate types on different spindles. Extra spindles are available for purchase, see Accessories on page 99. Dual-roll printing You can print on two rolls at the same time by using the dual-roll spindles provided with your LX850 printer or available as accessories for your LX820 printer. The dual-roll spindle is marked to assist you in positioning the differential hub. Handle the substrate 34 Chapter 3 Handle the substrate ENWW

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5.
Note the position of the end of the roll on the scale marked at the geared end of the spindle. Its
position should be not less than 3.2 cm (1.25 in) on that scale, otherwise the substrate may go out
of the print zone and start touching the printer covers. The input and output rolls should be
positioned identically on their respective spindles.
TIP:
When loading heavy rolls of inelastic substrates that are approximately half the spindle
length, you may find it useful to load the substrate closer to the center of the spindle, to reduce the
risk of skew, wrinkles and telescoping.
TIP:
If the substrate is telescoped on the input roll, there is a risk of substrate jams and damage to the
printheads. Try to straighten the edges of the substrate to minimize telescoping on the input roll before
loading it into the printer.
TIP:
Check that the substrate is attached to the input core.
The roll is now ready to be loaded into the printer.
TIP:
If you are a regular user of different substrate types, you can change rolls more quickly if you
preload rolls of different substrate types on different spindles. Extra spindles are available for purchase,
see
Accessories
on page
99
.
Dual-roll printing
You can print on two rolls at the same time by using the dual-roll spindles provided with your LX850
printer or available as accessories for your LX820 printer.
The dual-roll spindle is marked to assist you in positioning the differential hub.
34
Chapter 3
Handle the substrate
ENWW
Handle the substrate