colors are missing, shifted, washed out or unexpectedly grayscale
This symptom concerns the printer path. Start with a neutral DeviceOK test where available so the next step is based on evidence rather than a generic reset sequence.
Do not jump to the most invasive fix
Avoid destructive resets, unofficial driver packages, firmware flashing, or replacing hardware before the simpler detection, permission, connection and configuration checks are exhausted.
Retest the same condition
After every meaningful change, repeat the same test under the same conditions and compare the result.
Rule out the simple causes
- 1
Print DeviceOK Color and Grayscale references.
- 2
Confirm color—not grayscale/black-only—is selected in the print settings.
- 3
Check ink/toner status and run only the manufacturer's supported maintenance steps for the exact model.
Work through the problem in order
- 1
If DeviceOK references print correctly, inspect the original app/document/color settings.
- 2
If a specific color is missing across references, use the printer maker's print-quality/nozzle/consumable diagnostic path.
- 3
For color-critical work, distinguish a printer fault from ICC/profile/calibration issues.
Correct reference colors point toward the original app/document or color-management path.
A missing color on controlled references is stronger evidence for printer settings, consumables or printhead/engine maintenance.