Hasler HJ500P, Operating Manual, Page: 31 / 40

Section 4 – Maintenance HJ500P
Hasler
®, Inc. 04/2004 Page-23
Purging the Nozzles
If the printhead sits inactive for a period of time, ink may dry in the nozzles. Printing may not remove these “ink
plugs” from the nozzles. White streaks will then show up in the printed text or graphic. In order to obtain better
print quality, these ink plugs need to be forced out or purged. A Purge routine is built into the HJ500P Printer. It
can be accessed from the LCD panel on the Printer from the
MENU key. If this does not solve the problem then
proceed as follows:
1. Wipe the printhead with a wet cloth as described in " Cleaning the Printhead" above.
2. Perform the Purge routine from the Printer by pressing the MENU key momentarily and then the + key. Load
media and press the ENTER key to purge. Repeat if necessary.
3. Wipe the printhead again with a moist cloth.
NOTE: For more information refer to the Troubleshooting Print Heads in Section 5 – Trouble Shooting
Guide .
Jams in the HJ500P Printer
If a jam occurs, STOP the Printer. Up to 10 missed addresses can be recovered at the printer control panel. (See
Section 3 – Operating the HJ500P Print Recovery After Jam.
Some possible reasons for jamming are:
1. Feeding more than one piece of media.
2. Damaged media, such a dog-eared (turn down corners).
3. Media that is not stiff enough may not be usable. Media that meets Postal stiffness requirements for
automated feeding is acceptable in the HJ500P.
4. Envelopes that are caught under the flap of another envelope or stuck to one another may cause jamming.
Removing Jammed Media
1. It may be necessary to move one or more of the printheads to gain access to the jammed media. Take care
in removing jammed media to prevent damage to the print heads. All pieces of the jammed media must be
removed from the feed path.
2. Follow the instructions in Section 3 – Operating the HJ500P “Print Recovery After Jam”.
Replacing the Sheet Separators
The sheet separators insure separation of the pieces as they are being fed. The do wear and must be replaced
from time to time. If you experience double sheet feeding and can not adjust the separators to prevent it, they
should be replaced. Replacement of the sheet separators is not difficult. Just follow the steps below:
1. Turn off the printer and unplug it from the power
source.
2. Release the separator-locking lever and move the
paper side guides to their maximum open
position.
3. Lower the separators so that they touch the feed
roller.
4. Remove the screw [A] and the separator support
[B.] Then remove the separator [C] by prying it
out of the holder.
5. Install a new separator in place and replace the
separator support and screw.