On Tue, 3 Jan 1995 Rodolfo Lopez wrote:
 
> Ok all of you printer gurus, help is needed here.
>
> We are trying to use an Intermec 8646 printer connected to an HP3000 for Bar
> Coded Inventory Labels.
>
> Using Printer Type 18 with Xon/Xoff connected directly to a DTC port, we
> have a problem when the spooler handles more than 6 labels. An undetected
> overflow condition occurs and labels are lost. For example, if we attempt to
> print 36 labels, 1 thru 6 will print correctly, 7 to 30 something will be
> lost, and some of the latter labels will be printed correctly.
>
I had similar problem on HP Laserjet IIP. I had to print labels
containing the usual triangular icon of "RADIOACTIVITY" danger and text
and certificates using several fonts from the same program. The printer
rejoined "ERROR 20" message. The macro for the icon and the Hungarian
fonts overloaded its memory. What could I do?
 
1.) I discovered that some fonts are not used on the outputs. These might
be omitted from the downloading procedure.
 
2.) The laser printer collects and prints the information by logical pages.
When I used as log logical pages as long the physical pages were, I got
instead of the expected 7 rows and 3 columns of labels on an A4 size page
5 x 3 good labels and then the next macro call for icon printing caused
the "ERROR 20". Solution: I issued a printer command before the label
printing which defined a lower logical page size enough for 5 x 3 labels.
Some paper is wasted, that's all.
 
                                        Sincerely
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"There are three kinds of programming errors: syntactical, semantical and
mystical."
"The programmers have to suck up the users just as much as absolutely
necessary."
                                                        Frank