Epson Printer Error Code E-70 — What It Means & How to Fix It

What Does This Error Mean?

Epson error E-70 means the printer's scanner unit or optical assembly has detected a fault. On all-in-one models, the scanner cannot initialize or move correctly. The printer may still be able to print, but scanning and copying functions will not work until the issue is fixed.

Affected Models

Epson EcoTank ET-4850
Epson WorkForce WF-4830
Epson WorkForce WF-7840
Epson Expression Premium XP-7100
Epson EcoTank ET-5850

Common Causes

The scanner glass has an object on it preventing the scan bar from moving freely
The scanner carriage is physically stuck or has derailed from its track
A loose or damaged ribbon cable connecting the scanner to the main board
The scanner lamp has failed and the optical sensor cannot detect light
The printer was moved or dropped and the scanner mechanism shifted out of alignment

How to Fix It

Turn off the printer and unplug it. Wait 60 seconds to allow all components to reset.

A scanner error caused by a temporary glitch will often clear after a full power cycle.
Open the scanner lid and check that the scanner glass is clean and clear. Remove any objects, paper, or debris from the glass surface.

Even a small item like a paper clip resting on the glass can prevent the scan bar from traveling its full range.
Look through the glass at the scanner carriage underneath. Make sure it is sitting on its rail and is not tilted or stuck in one position.

If the carriage looks stuck at one end, it may have become jammed during shipping or after a bump. Do not force it.
Plug the printer back in and turn it on. Listen for the scanner to make its normal initialization movement — a brief humming or sliding sound.

If you hear a grinding or clicking sound, the carriage is stuck and needs professional attention.
Run a scanner test from the printer's built-in diagnostic menu or from the Epson software on your computer.

If the test fails, note the exact message displayed — this helps a technician diagnose the specific fault.

When to Call a Professional

If the scanner carriage is stuck and you cannot free it manually, or if the ribbon cable is damaged, professional repair is recommended. Scanner assembly repairs typically cost $80 to $150 at a repair shop. For older printers, buying a replacement unit may be more economical than repairing the scanner.

Frequently Asked Questions

Can I still print if I have error E-70?

It depends on your printer model. Some Epson all-in-one printers will still print even when the scanner has an error. Others lock all functions until the scanner fault is resolved. Check your specific model's manual for details.

The scanner worked fine yesterday — why would E-70 appear suddenly?

The most common sudden causes are something placed on the scanner glass, or the printer being moved and the carriage being bumped. Check the glass first, then try a power cycle. Electronic component failures can also appear without warning, especially on older printers.

Is it worth repairing a scanner error on an older Epson printer?

If the printer is more than 5 years old, weigh the repair cost against a new printer. Basic all-in-one Epson printers start around $80 to $150 new. A scanner repair at $80 to $150 may not make sense if the printer is already aging.