I have a requirement to be able to print graphics and text on transparency (just black). We use those to then create plates for labels. The output needs to be solid (not pixels) as any light passing through during the plate making process shows.
What I have been using to print these is a simple HP LaserJet 1020 using FastRes 1200 (and "Print all text as black"). This older printer did quite well. All new printers (even the newer HP with the same settings) leaves tiny holes which don't work in the plate making process.
I see many conversations around inkjets but I always though inkjets didn't make clearly defined lines?
Does anyone have a suggestion for what type of printer I need to start using to get a solid filled black? Sending each of these to a print shop to create a single 1.5"x3" transparency doesn't seem cost effective as printing them myself.
Laser is really the only way to do this - you just cant get the density with inkjet.
You will need to persist - maybe contact HP directly for advice.