Jon:  
 
I am not sure if it will standard 24X36 plots. Do I need to get the HP 36" or can I print it in a landscape form.
 
 
I'm using an 
HP DesignJet 130nr.  (w/ Mac OS 10.4) 
 
It's a 24" wide printer and I can print 24" x 36" sheets, no problem. I assume the 430 will do likewise. 
 
A word of caution on the 130.  It's geared more to the Graphic Artist / Photographer..... it uses a "dye" ink, instead of a "pigmented" ink.  As a result, T-bond and vellum papers are not "supported" media.  I've been able to print using t-bond by trial and error (print settings).  The prints are a bit soft (FUZZY).  Has anyone else dialed in these settings??
 
The HP purports? it's 
100plus is a CAD printer.  " No compromise CAD results".
http://h10010.www1.hp.com/wwpc/us/en/sm/WF05a/18972-236251-236266-12600-236266-352395.html
It's a color printer and it uses pigmented ink.  It should print cleaner black lines (like the 500 series) but it seems useless to me as it lacks a roll feed attachment.  I spoke with an HP Rep, and she said they may be adding a roll for this printer (US market),  but you may have to wait awhile to see it.  On the plus side.... it sells for under US$1,000. 
Good shopping.
Marco
					
				
			
			
				
	Marc Corney, Architect
Red Canoe Architecture, P. A.
Mac OS 10.15.7 (Catalina)  ////  Mac OS 14.5 (Sonoma)
Processor: 3.6 GHz 8-Core Intel Core i9  ////  Apple M2 Max
Memory: 48 GB 2667 MHz DDR4  ////  32 GB
Graphics: Radeon Pro 580X 8GB  ////  12C CPU, 30C GPU
ArchiCAD 25 (5010 USA Full)  ////  ArchiCAD 27 (4030 USA Full)