Color / CMYK test
Print one controlled sheet to check cyan, magenta, yellow and black separately, then together in a blend ramp, and read the result the way a technician would: which channel is weak, whether the fault repeats, and whether the printer or the computer is responsible.
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8 pt — Fine text should remain crisp, evenly filled and easy to read without halos, feathering or broken strokes.
6 pt — If this line is legible and consistent, your printer is resolving small type well.Print it right
A scaled or economy-mode print can look like a printer fault. Start with a controlled print before changing ink, toner, or hardware.
In the print dialog choose Color, not Grayscale, Black only or Auto. Set quality to Normal or Standard. Draft lays down far less ink and can mimic a weak channel; Photo or Best changes the dot pattern and hides mild banding that you will still see in ordinary documents.
Match A4 or US Letter to the tray, set scale to 100% or Actual size, and turn off browser headers and footers. Use plain paper first. Photo paper needs a matching media type or the ink pools and the ramp looks blotchy for reasons that have nothing to do with the printer.
Dye-based color inks keep changing shade for a minute or two as they dry. Compare the blocks in daylight or under a neutral white lamp, not under a warm bulb that makes every gray look brown. Hold the sheet at arm’s length for banding and close up for the grid and type.
Read the result
That single channel is starved: an empty cartridge or tank, a sealed vent or protective tape still on, an unseated cartridge, nozzles dried after weeks unused, or a chip the printer refuses to recognize.
Check the level and seating, remove any tape or cap, then print the printer’s own nozzle check. Only if that shows gaps run one standard cleaning cycle.
On an inkjet, individual nozzles in the printhead are not firing. The lines repeat at the spacing of each carriage pass.
Nozzle check, one cleaning cycle, reprint. If two cycles do not close the gaps, leave the printer powered off overnight and try once more before any deep clean.
The carriage side is at fault: a dirty encoder strip, a misaligned head, or bidirectional printing that no longer lines up on the return pass.
Run head alignment. If banding remains, disable High Speed or Bidirectional printing in the driver and reprint.
The ramp exercises the printer’s halftoning and color conversion. Steps in it point to Draft quality, an economy mode, a wrong media type or an outdated driver rather than to ink.
Set Normal quality and the correct paper type, reset color management to the driver default, and update the driver from the manufacturer, not from a generic class driver.
Each channel works, so this is mixing, not supply: a color preset, an ICC profile mismatch, a ‘vivid’ mode, or a third-party ink with a different pigment.
Turn off any vivid or photo enhancement, let only one of the application and the driver manage color, and compare with the printer’s built-in report.
Registration between colors, or between the forward and return carriage pass, has drifted. On a color laser the four imaging units are misregistered.
Inkjet: run automatic alignment, then manual alignment if offered. Laser: run color registration or calibration from the printer’s menu.
The driver is building black from cyan, magenta and yellow. Some printers do that on photo media by design; on plain paper it means the black channel is weak, empty or not being used.
Confirm black ink is present and recognized, choose Plain paper and Normal quality, and reprint. Black on plain paper should be dense and neutral.
A photograph mixes several inks in every square millimeter, so a weak cyan just makes skin look a little warm and nobody can tell which channel to fix. Four solid blocks remove the guesswork. Each block prints one channel alone at close to full density in a small area, so an empty or blocked channel shows up as a pale or missing block before you spend any ink on cleaning.
The blend ramp that follows does the opposite job. It asks every channel to cooperate in a smooth run of tones. A printer that passes the blocks but bands in the ramp is telling you the ink is fine and the problem is in how the driver converts and halftones color.
Almost every color complaint sorts into two piles. Supply problems (an empty or dried channel, blocked nozzles, a cartridge the firmware will not accept) show up on the printer’s own nozzle check as well as on this sheet. Settings problems (Draft, the wrong media type, a vivid preset, mismatched color management, a generic driver) show up only on pages sent from the computer.
So the fastest diagnosis is two prints, not one. Print this sheet, then print the nozzle check or print quality report from the printer’s own menu. The same defect on both means the printer. A clean built-in report with a bad browser sheet means the computer, driver or app, and no amount of cleaning will help.
Your screen emits RGB light and a printer reflects light off ink on paper, so the colors on this page will never match your monitor exactly, and they are not meant to. What this sheet can settle is whether each channel prints, whether output is even, whether colors register, and whether obvious balance problems exist. It cannot certify Pantone, FOGRA or press-proof accuracy, which needs a calibrated monitor, a measured paper profile and a reference target.
FAQ
Choose Color / CMYK above and match A4 or US Letter to the paper in the tray. Click Print test page, and in the dialog select Color, Normal quality and 100% scale, then turn headers and footers off. Print one copy, wait a minute for the ink to settle, and compare the four blocks, the ramp, the grid and the smallest text.
That ink channel is not reaching the paper. In rough order of likelihood: the cartridge or tank is empty, protective tape or a vent cap is still on, the cartridge is not clicked in, the nozzles dried after weeks unused, or the printer refuses the cartridge’s chip. Check supply and seating first, then run the printer’s own nozzle check. Only run a cleaning cycle if the nozzle check shows gaps.
Yes. Color lasers use cyan, magenta, yellow and black toner, so the blocks, ramp, grid and type checks apply. The advice differs: lasers have no nozzles to clean. A pale block points to low toner or an economy mode, hard steps in the ramp to a toner-save setting or calibration, and doubled edges to color registration. Use the printer’s calibration or registration routine instead of any cleaning cycle.
Monitors emit light in RGB and printers reflect it from CMYK ink, so an exact match is not possible without a calibrated workflow. Large differences are still worth chasing: a vivid or photo preset, the wrong paper type, two color managers fighting (application and driver both converting), or a third-party ink. Reset the driver to defaults, choose the correct media, and let one piece of software manage color.
No. Cleaning pushes ink through every channel and can use a noticeable fraction of a small cartridge each time. Print the nozzle check first. If it shows gaps, run one standard cleaning and reprint. If two cycles do not fix it, power the printer off overnight so the capping station can soften the clog, then try once more before any deep or power cleaning.
The driver is laying down plain-paper ink amounts on a coated sheet, or the other way round. Photo and glossy media need the matching media type in the driver so the printer adjusts ink volume and drying time. Set the paper type to match the paper and reprint before treating it as a hardware fault.
Both, for different reasons. The separate CMYK blocks reveal the four physical print channels. The blended ramp and any photo you print are RGB converted by the driver, which shows how well the driver mixes those channels. A perfect set of blocks with an ugly ramp points to the conversion, not to the ink.