Printer Adjustments

README.md

@@ -179,10 +179,16 @@ the widest roll it will accept — the console warns you if you enter anything w
 | DK-11208 | 38 × 90 mm die-cut | Narrower; turn the photo off |
 | DK-11209 | 29 × 62 mm die-cut | Name and host only |
 
+**Tell it which roll is loaded.** *Roll loaded in the printer* under **Sites → Edit → Printer**
+must match what is physically in the machine. A two-colour job sent to a plain roll is refused
+outright: the printer shows **Wrong Roll Type** and nothing comes out. The setting is separate
+from the red styling option on purpose — a design choice should not silently change the media
+type the printer is told to expect.
+
 **The red option.** Tick *Print the heading and the no-check warning in red* and the site name
 and the **No WWCC / VIT** box print red instead of black, which makes a visitor without a check
-obvious across a room. It only works on a DK-22251 roll — on any other roll the printer renders
-it as grey. Two-colour printing is also far slower than black alone (Brother rate it at roughly
+obvious across a room. It needs the roll setting above to be the DK-22251; with a plain roll
+selected the badge is drawn in black instead and the console says so. Two-colour printing is also far slower than black alone (Brother rate it at roughly
 15 labels a minute against 110), which is irrelevant for one badge at a time but worth knowing.
 
 ### Printing from the server