PRINTER LAB / PRN.05
Banding and Nozzle Test
Process-color line ladders, fine nozzle-style grids, full-width fills, and smooth tints reveal missing jets, repeated horizontal gaps, streaks, and density cycling.
I/O CHECKUP / PRN.05
Banding and nozzle test
- PAPER
- A4
- ORIENTATION
- Portrait
- PAGE
- 1
N1
Nozzle-style line continuity
CYAN
MAGENTA
YELLOW
BLACK
N2
Full-width density bands
N3
Banding-sensitive gradients
N4
Rule continuity
Banding and nozzle test: a controlled physical comparison
Use it when inkjet output has white lines, one color disappears, photos show repeated stripes, or large fills vary from one pass to the next.
01 / INSPECT
What to inspect on paper
- Every colored diagonal in the nozzle grids remains continuous.
- Solid bands are uniform from left to right.
- Horizontal gaps do not repeat at a fixed interval.
- Each process-color ramp reaches from a light tint to a clean solid.
02 / HEALTHY OUTPUT
What a clean result looks like
- No broken line segments or channel-specific voids appear.
- Fine rules do not merge into thick blocks.
- Broad fields have stable density without periodic striping.
03 / LIMITS
What the result does not prove
- This sheet reveals symptoms; it cannot identify a blocked nozzle electronically.
- Laser banding can come from drums, transfer components, toner, or feed behavior.
- Run cleaning cycles only according to the printer manufacturer’s guidance.
HONEST BROWSER BOUNDARY
The sheet is the diagnostic instrument.
I/O Checkup prepares the controlled pattern and opens the browser print dialog. A webpage cannot reliably read your printer model, queue, driver faults, ink or toner level, maintenance state, or mechanical condition. Diagnose those systems with the printer manufacturer’s utility after the physical sheet shows a repeatable symptom.