HP LaserJet 3100 All-in-One Printer series - Manual (Page 211)

210 9 Troubleshooting and Maintenance EN
The Document
Assistant blinks on
and off on the
computer screen
even when no
document is
loaded in the
document feeder
tray. The HP LaserJet 3100 product is
connected to a parallel port being shared
with another device. The HP LaserJet 3100 product cannot be
connected to the same parallel port on the
computer as another device. You must
buy an additional parallel port to use both
devices.
Copying is
extremely slow
.
If you are using the Document Assistant,
there is a delay.
If you are using the Document Assistant to
copy, there are too many other programs
open.
The parallel cable may be loose, you may
have the parallel cable plugged into the
wrong type of port, or the parallel port
setting is incorrect.
Using the Document Assistant causes a
delay when copying. Wait for a few
seconds for the job to be copied or use
the control panel.
Other programs may be using needed
memory. Try closing all other open
programs and recopying the document.
Check that you have the parallel cable
plugged in securely on the back of the HP
LaserJet 3100 product. Check that the
cable is plugged into the parallel port, not
the serial port. PC faxing may also be
slow if you have an SPP-compliant
parallel port. An ECP-compliant parallel
port is strongly recommended. Check the
parallel port setting. For more information
on your parallel port, please see appendix
C and your computer’s documentation.
Copies are too
light or too dark. The contrast may not be set correctly. Adjust the contrast setting. See “Adjusting
the contrast” in chapter 5.
Copy quality of an
image is poor. The resolution may not be set correctly. Adjust the resolution setting to Photo. See
“Adjusting the resolution” in chapter 5.
Copy quality of
words is poor. The resolution may not be set correctly. Make sure Photo is not selected as the
resolution setting. See “Adjusting the
resolution” in chapter 5.
Only one copy of a
job printed
although I
specified multiple
copies. When using the control panel to make
multiple copies of jobs, the entire
document to be copied must fit into
memory, or only one copy prints. Use the Document Assistant to make
multiple copies of large documents.
Break the job into smaller jobs containing
fewer pages.
Make only one copy at a time.
Problem Cause Solution