Thanks for your reply - it is helpful to know the DPI.
I’ve attached a little snippet zoomed in and one at 100%) showing the resolution issue;in this case the example shows an area becoming grainy for text (which was generated in SU, not LO).
This is printed in Raster (HQ and no JPG compression). I accept that it would look crisp in vector or hybrid, but vector will loose detail in other parts of these plans, and hybrid just takes too long & freezes LayOut, plus (when it does work) it often has grainy/block areas around critical details.
I can workaround the issue by creating a custom template at A1 size (instead of A3) which should give me a boost in resolution - haven’t actually compared the results of each carefully yet, but that’s my next step. I will be printing these at A1 or A0 size for this project.
I used to do a lot of Site plans/renderings in Photoshop and we always used 600dpi as a minimum for technical drawings; the results were very noticeable for linework and fine textured details.
I’m happy to upload some of my output files as a message but dont want to post them in a public forum for confidentiality reasons.
If you’re curious, the specs on my A1 printer are as follows:
Print resolution Up to 2400 x 1200 optimized dpi
Ink types Dye-based (C, G, M, pK, Y); pigment-based (mK)
Ink cartridges 6 (cyan, gray, magenta, matte black, photo black, yellow)
Line accuracy +/- 0.1%
Minimum line width 0.02 mm (0.0008 in) (HP-GL/2 addressable)
Guaranteed minimum line width 0.07 mm (0.0028 in) (ISO/IEC 13660:2001(E))
…and the Laser Printer just says 1200x1200dpi.