- Printers
- Inkjet printer
E2
HP DeskJet and Smart Tank E2 error: paper size mismatch steps
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Low
Quick answer
On HP DeskJet 2700, 4100, and 4800 series and HP Smart Tank 670, 720, and 750 printers with an icon display, an E2 error with a blinking Resume light indicates a paper length or size mismatch. You can clear it by canceling the job and matching the loaded paper and driver settings.
Safety first
Stop and check this first
- Do not push the paper-width guides in so tightly that the paper stack bends or buckles, as that causes misfeeds and size mismatch errors.
- When reconnecting power after the 60-second reset, plug the power cord directly into a wall outlet rather than a power strip.
Safe checks you can perform
- Cancel or resume the print job and reload a uniform paper stack
- Match Paper Size and Paper Source in Windows or macOS
- Perform a 60-second power reset plugged directly into a wall outlet
Leave these tasks to a qualified professional
- Do not attempt this professional task: HP Customer Support if E2 persists with matching paper and settings
- Do not attempt this professional task: Service inspection if the input tray guides or rollers skew sheets
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
HP Customer Support if E2 persists with matching paper and settings
What they doWhen the loaded paper matches the driver Paper Size, you have completed the 60-second wall-outlet reset, and the firmware is up to date but code E2 continues, contact HP Customer Support.
They must show youthe loaded paper stack, the matching Paper/Quality settings, and the E2 code flashing when printing.
In writingthe paper sensor inspection findings and the HP support case number or repair estimate.
Service inspection if the input tray guides or rollers skew sheets
What they doIf the paper-width guides do not stay in place or the feed rollers pull sheets at an angle and trigger repeated size mismatch alerts, have an authorized HP service center inspect the tray mechanism.
They must show youhow sheets feed from the input tray and when the E2 alert triggers.
In writingwhich input tray guide or feed roller part was adjusted or replaced.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Cancel or resume the print job and reload a uniform paper stack
- Who:
- you, at the printer control panel when E2 and the Resume light are blinking.
- How:
- press the Cancel button to stop the print job (or press Resume to eject the sheet and continue), remove the stack from the input tray, load sheets of a single matching size and type, and slide the paper-width guides inward until they rest lightly against the edges without bending the paper.
- Result that matters:
- making sure the input tray holds a flat, uniform stack of the intended sheet size.
- If mixed or buckled sheets were in the tray:
- try printing again once the stack is reloaded.
- If the tray already held the right paper size:
- check the Paper Size setting in Windows or macOS.
- Evidence to keep:
- the exact dimensions of the paper loaded in the input tray (such as Letter, A4, or 4 x 6 in).
Evidence: HP Smart Tank 670, 720, 750, 790 Printers - Blinking lights and error codes · HP DeskJet 2700, 4100, 4800 printers - Blinking lights and error codes · HP printers - Paper Mismatch error (Windows, macOS)
Match Paper Size and Paper Source in Windows or macOS
- Who:
- you, in the software application you are printing from on your computer.
- How:
- in Windows open File > Print > Printer Properties and on the Paper/Quality tab select the exact Paper Size and Paper Source that match the tray; in macOS open File > Print, select the loaded size in the Paper Size menu, and confirm the media type under Media & Quality.
- Result that matters:
- aligning the print job settings with the physical paper loaded in the printer.
- If the document prints without showing E2:
- the mismatch was in the print dialog settings.
- If the Paper Mismatch alert returns even with matching settings:
- perform the 60-second power reset.
- Evidence to keep:
- a screenshot of the Paper/Quality tab or macOS Paper Size setting used for the job.
Evidence: HP printers - Paper Mismatch error (Windows, macOS)
Perform a 60-second power reset plugged directly into a wall outlet
- Who:
- you, if the Paper Mismatch error continues after matching the tray and driver settings.
- How:
- with the printer turned on, disconnect the power cord from the rear of the printer and unplug it from the power source, wait 60 seconds, then plug the cord directly into a wall outlet and turn the printer on.
- Result that matters:
- clearing any latched paper mismatch state and checking whether a firmware update is needed.
- If the printer prints normally after the reset:
- a temporary error state was cleared.
- If code E2 still appears with matching paper and settings:
- check for HP firmware updates or contact HP Support.
- Evidence to keep:
- confirmation that the power cord is plugged directly into a wall outlet.
Evidence: HP printers - Paper Mismatch error (Windows, macOS)
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Printers
- Brand
- HP
- Product type
- Inkjet printer
Known code variants
- 2 flashes
- 2 parpadeos
- ALFA Crea E2 error
- ALFA Duo embroidery hoop error
- ALFA E2
- cabezal tado E2
- Calibración incompleta de la carrera
- Calibrating the complete gate-travel
- CAME E2
- Code E2
- Código E2
- código E2 HP
- E 2
- E-2
- E0 instale la unidad de bordado ALFA
- E02
- E2
- E2 en tensiómetro de brazo Omron
- E2 no power wires detected
- E2 Omron
- E2 on Omron upper arm monitor
- El aro de bordado no está instalado o debe retirarse
- Embroidery hoop is not installed or should be removed
- Entrada de seguridad activa permanentemente
- Error 02
- Error 2
- Error E2
- error E2 ALFA Crea
- error E2 HP
- error E2 lavavajillas Smeg
- error E2 tado calibración
- Fallo del sensor de temperatura
- Hoover E02
- Hoover E2
- Hoover washing machine E02
- Hoover washing machine E2
- HP code E2
- HP DeskJet E2
- HP E2
- HP error E2
- HP Paper Mismatch
- HP Paper Size Mismatch
- HP Smart Tank E2
- Incompatibilidad de papel HP
- Incompatibilidad de tamaño de papel HP
- lavadora Hoover E02
- lavadora Hoover E2
- measurement cannot be completed after the arm cuff inflates
- Nest E2
- Nest E22
- Nest E402
- Nest E72
- Nest thermostat E2
- no se puede completar una medición después de inflar el manguito
- Omron E2 measurement not completed
- Omron E2 medición no completada
- Safety input always active
- Smeg dishwasher E2
- Smeg dishwasher error E2
- Smeg lavavajillas E2
- Smeg LVFABCR3 E2
- Smeg nivel de seguridad agua E2
- Smeg safety water level E2
- Somfy Dexxo Pro E2
- tado Basic cuatro rayas llave inglesa
- tado Basic four dashes spanner
- tado E2
- tado E2 calibration error
- tado radiator thermostat E2
- tado Smart Radiator Thermostat E2
- tado° E2
- Temperature sensor error
- termostato Nest E2
What it means
According to HP support documentation for DeskJet 2700, 4100, and 4800 and Smart Tank 670, 720, and 750 printers, code E2 or a Paper Mismatch / Paper Size Mismatch alert appears when the physical paper length or size loaded in the input tray does not match the paper size selected in your application or print driver. Other HP printer series may use different on-screen messages, and this code by itself never proves that a paper sensor or feed assembly is defective.
Warnings and stop conditions
- Lowsource verified
Do not push the paper-width guides in so tightly that the paper stack bends or buckles, as that causes misfeeds and size mismatch errors.
Evidence: HP printers - Paper Mismatch error (Windows, macOS)
- Lowsource verified
When reconnecting power after the 60-second reset, plug the power cord directly into a wall outlet rather than a power strip.
Evidence: HP printers - Paper Mismatch error (Windows, macOS)
Symptoms and causes
Probable causes · in order
- Print driver paper size does not match the loaded stackCommon
HP's primary cause for E2 is that the paper size chosen in the Windows or macOS Print dialog differs from the physical sheets loaded in the input tray.
Evidence: HP Smart Tank 670, 720, 750, 790 Printers - Blinking lights and error codes · HP DeskJet 2700, 4100, 4800 printers - Blinking lights and error codes · HP printers - Paper Mismatch error (Windows, macOS)
- Mixed paper sizes in the tray or overly tight width guidesPossible
Stacking different sheet lengths together or pushing the paper-width guides so tightly that the paper bends can trigger a size mismatch reading.
Evidence: HP printers - Paper Mismatch error (Windows, macOS)
- Incorrect Paper Source or tray setting in the print dialogPossible
Selecting the wrong paper source under Paper/Quality or Media & Quality causes the printer to expect a different paper dimension than what is loaded.
Evidence: HP printers - Paper Mismatch error (Windows, macOS)
Virtual technician
Does E2 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
HP Smart Tank 670, 720, 750, 790 Printers - Blinking lights and error codes
HP Support · official_doc
- 2
Impresoras HP Smart Tank 670, 720, 750, 790: luces parpadeantes y códigos de error
Soporte HP · official_doc
- 3
HP DeskJet 2700, 4100, 4800 printers - Blinking lights and error codes
HP Support · 2025 · official_doc
- 4
Impresoras HP DeskJet 2700, 4100, 4800 - Luces parpadeantes y códigos de error
Soporte HP · 2025 · official_doc
- 5
HP printers - Paper Mismatch error (Windows, macOS)
HP Support · 2025 · official_doc
- 6
Impresoras HP - Error de Incompatibilidad de papel (Windows, macOS)
Soporte HP · 2025 · official_doc
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