Technical data

If a queue using the AppleTalk interconnect is started before the AppleTalk

network software is running, then the queue might start but will not be

functional. This occurs when DCPS is running as a multistreamed symbiont and

another print queue is running in the same process.

To recover from such an error, stop all queues supported by any currently running

symbiont processes that have detected that the AppleTalk network software is

not running (one error message is generated per symbiont process). Restart the

AppleTalk software and the queues.

To avoid this problem, run the AppleTalk network software before starting any

DCPS print queues.

4.10 Some Printers Do Not Send Status Messages to the Host

Because of their internal architecture, some PostScript printers report status

information only to the printer console and not to the host system with which

they are communicating. As a result, DCPS is not aware of some status

conditions (for example, paper out, paper jam, page too complex and cover open)

and cannot report them to you. Instead, the DCPS queue will enter the Stalled

state if DCPS subsequently attempts to communicate with the printer. This

subsequent attempt may come during the same job that ﬁrst experienced the

problem or in a later one.

The following is a list of some of the printers which exhibit this behavior:

- DEClaser 5100 printer

- LN17ps printer

- some HP LaserJet III and IV printers (but not the HP LaserJet III with the

HP PostScript-Plus Level 2 cartridge or the HP LaserJet IIISi if jam recovery

is disabled)

4.11 Printer Name Is Not Always Printed Correctly

When multinational characters are used in the PostScript ‘‘printername’’, the

printer name printed on the bottom of separation pages may be printed in the

wrong character set.

4.12 DDIF Printing Requires DECwindows Software or DECimage

Application Services

To print DDIF encoded bitonal images, DCPS requires that either DECwindows

software or Version 3.1 of DECimage Application Services (DAS) be installed on

your system. DAS is only available on OpenVMS VAX systems.

4.13 Compatibility of NUMBER_UP and PostScript Drivers

PostScript ﬁles created with the LaserWriter 8.0 or 8.1.1 driver or the Adobe 2.1.1

Windows driver, in conjunction with the user application, may produce PostScript

ﬁles that do not print as expected with NUMBER_UP greater than 1.

Symptoms include pages being clipped, printed outside of the NUMBER_UP page

spots, or being improperly scaled.

4–4 DCPS Restrictions