There are two utilities that will enable you to change the zones the printers are located in. Use the "Apple Print Utility" for the LaserWriter 16/600 PS, and place the printer's configuration switch in the up position for the zone change to be persistent between restarts. For the LaserWriter IIg, Pro 630 and Pro 810, use "LaserWriter Utility" v7.4.1 or later.
If you don't have LaserWriter Utility v7.4.1 or later, the utility included with the LaserWriter IIg doesn't have an option to select a zone when connected to an EtherTalk network that has more than one zone associated with it. You can change the zone that the LaserWriter IIg appears in with this PostScript code:
---Cut Here---
currentfile statusdict begin product (LaserWriter IIg) eq
version (2010.113) eq and end not
{save exch 291 string readstring pop pop restore} if
/ASCIIHexDecode filter /SystemPatch statusdict /emulate get exec
85f6ba98b8147bdb3c41fc154e390200521caba043febd65f48e008d42590001cd0f62e
4c9f2b841c6c1c85660f30002ba262234d72494f203c119951000000376b481858e01bff2
db172cf2ecfe000446e2f3ddca7b1fb2d27814e1c22e000598f64cae7bb9897afb760a5d8
1ac0106>
serverdict begin 0 exitserver
(%EtherTalk%) <</EtherTalkZone (YourZoneGoesHere)>> setdevparams
---Cut Here---
1) Copy all information between the "---Cut Here---" lines.
2) Paste the information into a text document.
3) Change the text "YourZoneGoesHere" in the last line to the new zone name.
4) Save the text document as a file.
5) Download the file with the LaserWriter Utility.
After sending this code, the LaserWriter IIg should appear in the new zone. If the zone name requested isn't valid for the EtherTalk network, the LaserWriter IIg uses "*" as the zone name and appears in the default zone. A valid zone name is a string of up to 32 characters, excluding the ":" and "@" characters.
Notes
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For a LaserWriter to be in a particular zone:
1) The LaserWriter must be directly connected to an EtherTalk Phase 2 network via the built-in Ethernet port.
2) The zone in which the LaserWriter is to appear must be in the zone list for the physical cable (network) to which the LaserWriter is attached -- which, in this case, must be Ethernet. This is defined by the router for the physical cable.
Tip for Sending PostScript Code to a LaserWriter
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An easy way to send PostScript code to a LaserWriter is to enter it into a TeachText or SimpleText document and download it using the LaserWriter Utility's Download PostScript File option. TeachText or SimpleText is included with Macintosh system software, and the LaserWriter Utility is included with the LaserWriter.