Adobe Reader does not print to HP 1320 (neither Leo nor Tiger)

Question

As the topic says, we cannot print from Adobe Reader (also when the Safari plugin is used) to the HP 1320. Just the light flashes for some time, and then ... nothing.
The HP1320 is not connected via USB, but over a print server and parallel cable ("centronics").
The same problems appear for some G4 with Tiger and some G5 with Leo.
The same problems appear with different versions of Adobe Reader.
No problems with printing the same PDFs with Vorschau ("Preview"), or any other application, only with Adobe Reader.
I also tried lots of different settings in the Reader's printing dialogue window, without any result.
Strange?

Answer 1

We had the same problem with protected mode and the 1050C. Symptoms were when selecting ANSI E (or other sizes) in the print dialog, the preview remained at 8.5 x 11 and as mentioned in earlier posts, the job never spools. This was on a Win7 Pro 64 bit system.
At first I thought it was the driver as Microsoft lists the 1050C as incompatible with Windows 7 (32&64 bit) on their hardware compatibility site.  Our print server is Server 2003 and I couldn't get the 64 bit driver installed on the server, so the way I installed the 64 bit driver (in this case) was to use the add printer wizard in control panel, choose add a local printer, create a standard tcp/ip port with the corresponding IP on the print server and then click the 'windows update' button to update the local driver database. I was then presented with both PCL and PS driver choices for the 1050C (chose HP DesignJet 1050C by HP). Whether this is actually the Vista 64 bit driver I don't know, but it's presented in the driver database on Win7 as a certified driver.
Anyhow, I was clued into the application possibly being the issue because I had two identical systems where I knew I had installed the printer in the same way on both systems. One person however, wasn't having the problem. On closer inspection, the user that was plotting successfully was using Acrobat Pro, not reader.
I then remembered having already encountered another problem with protected mode. We had a few people selecting several pdfs at once and then just right-clicking and printing them en masse without opening them. After upgrading to Acrobat X, they could no longer do that. Again, protected mode was the culprit. A whole bunch of acroread processess would stack up but only one of the docs or none of them would print. So remembering this earlier problem & resolution, I turned off protected mode and the issue with the 1050C was resolved. For now, I'm just turning off protected mode as needed on a case by case basis.