HP Latex 850 Printer - Manual (Page 9)

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.
ENWW Load rolls into the printer 5
Dual-r
oll spindle