HP Printer E0 Error Code – Meaning, Causes & Fixes
The E0 error code on an HP printer means the machine cannot detect paper in the input tray. HP uses this code — typically displayed as a blinking 'E' followed by '0' on single-line LED displays — to signal an empty tray or a paper detection sensor issue. In most cases, simply reloading paper correctly resolves it immediately. If the error persists with paper loaded, the paper sensor may need attention.
What it means
No paper detected in the input tray. The printer cannot start a job.
Severity
LowCan you fix it yourself?
Yes — reload paper or clean the paper sensor.
Call a technician when
Only if the paper sensor is physically damaged and needs replacement.
What Does E0 Mean?
E0 on an HP printer is a paper-out or paper-detection error. The printer's paper sensor — a small mechanical flag or optical sensor in the input tray — checks for the presence of paper before every job. If it doesn't detect a sheet, it blocks printing and displays E0. This is one of the most benign HP error codes. It can also appear if paper is loaded incorrectly, the tray guides are set too wide, or the sensor is dirty or stuck.
What Causes This Error?
- Input tray is empty — no paper loaded
- Paper loaded incorrectly — sheets not seated flat against the tray guides
- Paper guides set too wide or too narrow for the loaded paper size
- Thin or curled paper not triggering the paper sensor flag
- Dust or debris on the paper detection sensor preventing it from registering paper
- Sensor flag stuck in the 'empty' position due to a paper fragment
How to Fix E0
- 1
Remove all paper from the input tray. Fan the stack to separate the sheets and remove any curled or damaged pages.
- 2
Reload the paper neatly, aligning the stack with the back of the tray. Slide the width and length guides snugly against the paper — not too tight, not too loose.
- 3
Press the Resume button (the one with a triangle or exclamation icon) to signal paper has been loaded. The printer should clear E0 and proceed.
- 4
If E0 persists with paper loaded, remove the tray completely and look into the tray slot with a flashlight. Locate the small plastic sensor flag inside the printer. Check if it's stuck or has a paper scrap caught under it.
- 5
Gently clear any debris near the sensor. Use compressed air if available. Manually move the sensor flag up and down to confirm it moves freely.
- 6
Reload the tray and test again. If E0 still appears, the sensor may need professional cleaning or replacement.
When to Call a Professional
E0 rarely requires professional repair. However, if the paper sensor flag is broken or the optical sensor has failed, a technician can replace the sensor for minimal cost. This is typically worth doing only on higher-end HP models.
Can You Still Use the Device?
The printer will not process any jobs while E0 is active — it's a pre-condition check. Once paper is loaded correctly and the error clears, the printer operates normally. No other functions are affected.
See Also
Official Resources
Related Error Codes
Disclaimer: This article is for informational purposes only and does not constitute professional repair advice. CodeExplain is not affiliated with HP or any other brand mentioned. Always consult a qualified technician for complex repairs.