I experience printing errors of the following types:

Wrong text orientation
Wrong font size
Axes missing
Labels missing
Data missing
Data plotted on the wrong scale

These errors seem to occur most often when the graphs are more complex, or when
I have several graphs on a single "layout". When I added another 64 MB of RAM
the frequency of errors decreased.

Your problem does seem to be resource related.
You can monitor the system memory resources
using the following procedure.

Press and . This will allow
you to access the NT Task Manager. Select the
Performance tab. As you try some of my
suggestions, this will allow you to monitor
your progress.

The greatest users of resources are datasets.
To see the number of datasets that are in
memory you need to open the Origin Script
Window. Select Window: Script Window. Once
the Script Window is open type in the
following:

list s The Script Window will respond
with a list of datasets. You will see
something like shown below.

list s;
1 Data1_A
2*

If you have many datasets that you do not
recognize, they may be old datasets that you
are no longer using or temporary datasets that
were created during various routines. You do
not state if you are using the LabTalk language
or performing fitting routines. These can
generate datasets without graphs, and can
rapidly multiply.

Another source of datasets is opening a number
of Excel Workbooks. Even if the workbook only
contains two columns of data, It will place 10
additional blank datasets in Origin's memory.
If this is the case your Script Window may look
similar to this:

list s;
1 Data1_A
2* Data1_B
3 Book1_A
4* Book1_B
5* Book1_C
6* Book1_D
7* Book1_E
8* Book1_F
9* Book1_G
10* Book1_H
11* Book1_I
12* Book1_J
13* Book1_K
14* Book1_L

If the list of datasets is in excess of 300 to
500 you may have extra datasets you do not
need.

There are two ways of deleting datasets that
are not in use.

The easiest way to access datasets that can be
plotted is to open the Layer Contents Dialog
box. You do this by double clicking on the
layer Icon in the upper left corner of an
Origin Graph. It does not matter which graph
or layer is opened. We are only interested in
the "Available Data" list. Using this list it
is possible to highlight and then delete any
extraneous or unused datasets. This will
increase the available system resources.

There may be some datasets that are shown in
the Script Window but are unavailable in the
Layer Contents. The only way to delete these
datasets is to go to the Script Window and
delete them one by one using the "delete"
command.

To delete the following dataset, type the
following into the Script Window.

Del Data1_B
This will delete this particular dataset.