Reply To: Printer Proofs have blurs around text

if the printer's RIPped proof is produced from a RIP such as AGFA printdrive, then the reason that there are blurs is that the RIP has created rendred files which have the halftone patterns in them. When a rendered proof runs through an inkjet plotter, the halftone pattern can appear deceiving and almost like a moire, so to get around this a slight descreen and blur is put on by the proofing software to remove this pattern and makes the proof look more the printed product… in terms of colour. Yes, a side effect is that sharp vectors become slightly blurred.

If you still have doubts, ask your printer how their RIP generated the proof.