The poster printed, and the colors are duller, darker or shifted compared with the screen. Blues look purple, bright greens look flat, blacks look grey.
The honest answer first
A screen and a sheet of paper cannot match exactly, and no setting in any app will make them. A screen emits light and can show colors — vivid cyans, saturated greens, glowing reds — that ink on paper physically cannot reproduce. Printers approximate those with the closest color they can mix, and the approximation is what you are looking at.
This page is about getting closer, not about a fix. If you have been changing settings expecting an exact match, that is why nothing has worked.
What actually helps
1. Print a test sheet first
One sheet, real paper, real printer, real ink. Everything below is guesswork without it, and you learn more from one test print than from an hour of adjustment.
2. Use the right paper
The single biggest factor after the printer itself.
- Plain copier paper absorbs ink, dulls everything and shifts warm.
- Matte photo paper holds far more color and is the best value for posters.
- Glossy photo paper is the most saturated, at the cost of reflections.
Cheap paper is where most disappointing color comes from.
3. Turn off draft and eco mode
Both cut ink coverage dramatically. Set the print quality to normal or best and the difference is immediate.
4. Let the printer manage color, or your software — not both
In the print dialog, choose either the printer's color management or the application's, and make sure the other is off. Two color conversions applied in sequence is a common cause of a large, strange shift.
5. Check the ink
A cartridge that is low or a nozzle that is partly blocked shifts color before it stops printing. Run the printer's nozzle check and cleaning cycle.
6. Adjust the source, not the export
If the test print is consistently too dark or too warm, correct the image in your photo editor, re-import it and print another test. That is a reliable loop.
There is no photo color correction in Docuslice — no brightness, contrast or saturation controls. Images are rendered exactly as they arrive and handed to the printer. The color tool in the app applies to text and SVG artwork only.
7. Turn down your screen brightness
A screen at full brightness in a dim room makes every print look dull by comparison. Compare the print under the light it will actually hang in.
Consistency across sheets matters more than accuracy
On a tiled poster, a slight overall shift is invisible once it is on the wall. A shift between sheets is glaring.
So: print the whole poster in one session, with the same paper from the same pack, without changing cartridges partway. If you have to reprint one tile later, expect it to be a shade different from its neighbours.