Change one setting
Hold paper and the scene steady.
Write down the actual change.
Print Problem
Case Builder
One visible problem. One controlled change.
Give a helper a comparison they can follow.
Build a case someone can follow.
Horizontal bands: one controlled comparison
Illustrative sample sheets · replace them with your own PNG/JPEG photos.
BEFORE
AFTER
Changed setting: Quality · Standard → High
Annotation 1 marks the cyan patch. Click either photo to move the shared marker.
A changed setting alone does not establish cause. Describe what you can actually see.
Make the next step useful.
Align the same region
Place one shared comparison marker.
Describe the visible difference.
Review your photos
Labels and addresses may be visible.
Send only what your helper needs.
Questions, Answered.
Can this comparison diagnose my printer?
No. It records images and your observations. A change in a setting alone does not establish cause. Consult the specific printer manual or a qualified helper.
Are these example sheets real printer output?
No. Both are constructed illustrative sheets. They demonstrate the comparison controls and are labeled wherever exported.
Does a case link contain my personal photos?
No. Summary links and metadata omit all uploaded photo pixels and filenames. Recipients see placeholders for omitted personal photos; share your reviewed PDF or PNG separately to include photos.