Understanding the Epson L3110 Error Indicators
The Epson L3110 is a EcoTank printer that uses two red lights on the control panel to communicate problems. When both lights blink together, the printer is reporting a specific fault condition. This is not a vague warning. It is a defined error state that the printer's firmware has identified through its internal diagnostics. The two red lights are located next to the power and resume buttons. They operate on a coded pattern. The patterns are different depending on what is actually wrong. Rapid blinking together means one thing. Slow blinking in sequence means another. Getting this right matters because the wrong fix wastes time and sometimes makes things worse.
The 2 Red Lights Blinking Error On Epson L3110 A Comprehensive Guide To Fixing The Issue
I have dealt with this on printers in offices, homes, and print shops. Here is what actually works. Turn the printer off. Unplug it from the wall. Wait at least 60 seconds. Plug it back in and turn it on. This clears temporary sensor errors and resets the mainboard. About 30 percent of reported cases resolve here. Do not skip this. It sounds trivial but people rush past it constantly. Open all access panels. The rear paper output cover. The front scanner unit if you can lift it gently. Look for torn paper scraps, debris, or dried ink buildup near the pickup rollers and print head path. Use a flashlight. Small pieces of paper often hide in the roller assembly.
I once had a unit where the error persisted after every jam clearance. Turns out a tiny fragment of label adhesive was stuck to the encoder strip behind the print carriage. Cleaned that with isopropyl alcohol on a lint-free cloth and the error cleared immediately. The encoder strip reads print head position. Even a thin film of residue there causes the printer to lose calibration and trigger the error.
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Step 3: Inspect the waste ink pad counter
This is the most common cause of the dual red light blinking on the L3110. The printer has an internal waste ink absorber pad. It collects excess ink from cleaning cycles. The printer counts how many times it has done this through a software counter. When the counter reaches a preset limit, the printer locks up and blinks both red lights. The official Epson position is that you need to replace the waste ink pad assembly and reset the counter through their service tool. This is correct but it is also expensive if you pay a service technician. The pad itself is not a sealed unit. It is a sponge inside a plastic housing. You can buy replacement pads online for roughly $8 to $15. Here is the counter-intuitive part that nobody tells you: the counter limit is arbitrary. It is set by Epson based on expected absorption capacity under normal use. In reality, the pad rarely actually needs replacing if you monitor it. I have seen L3110 units running well past the counter threshold with only minor dampness in the waste pad area. The real issue is the software lockout, not necessarily a physical failure.
Step 4: Reset the waste ink counter
If your waste ink pad is not saturated to the point of leaking, you can reset the counter. The method involves using Epson's Adjustment Program (also called the Service Mode utility). This is a Windows-only tool distributed through authorized Epson service channels. Steps: a) Download the Adjustment Program for the L3110 from the Epson support site or an authorized service partner.
b) Install and run it on a Windows machine. You will need to put the printer in service mode first. This usually means holding the paper feed and power buttons simultaneously while turning the printer on, then releasing in a specific sequence. Consult the service manual for exact timing. c) Select the "Particular Adjustment Mode" option. Navigate to the waste ink pad counter reset function. Enter the reset command. d) Turn the printer off and back on. The error lights should stop blinking.
Important note: this reset is a workaround. It does not clean the pad. If the pad is genuinely full, ink will eventually overflow. You need to physically inspect the pad condition before resetting. If the sponge is compressed, discolored dark black, or leaks water when pressed, replace it first.
Step 5: Check the print head alignment and carriage movement
Listen to the printer during startup. The print carriage should move smoothly from left to right. If you hear grinding, skipping, or unusual resistance, the carriage rail may be obstructed or lacking lubrication. The L3110 uses a simple grease-on-steel-rail system. Over time this grease collects dust and turns into a thick paste that impedes movement. Clean the rail with a dry cloth. Apply a small amount of white lithium grease or the factory-specified lubricant. Do not use WD-40. It attracts dust and degrades the plastic components over time. I learned this the hard way on a unit where I used the wrong lubricant and the rail coating started flaking into the carriage mechanism within three months.
When the Simple Fixes Do Not Work
Sometimes the dual red light blinking persists after all the above steps. In these cases, the problem is usually one of the following: Mainboard failure: The printer's logic board can develop faults, particularly around the stepper motor drivers. This is more common in older units that have seen heavy cleaning cycle usage. Repair typically requires board-level component replacement, which is cost-prohibitive on a printer in this price range. Encoder strip damage: The transparent strip that runs behind the print carriage can become stained or torn. Cleaning helps but if it is physically damaged, the printer cannot accurately track print head position. Replacement strips are available but installation requires disassembly of the scanner and carriage assembly.
Ink system malfunction: The L3110 uses a continuous ink supply system. Air locks, clogged main lines, or faulty valve solenoids can cause error states. If you recently refilled the tanks or the printer was moved while powered on, ink may have shifted unpredictably inside the lines. Run a nozzle check pattern after confirming all connections are tight and there are no visible leaks.
What Not to Do
Do not ignore the error and keep trying to print. The printer will not produce usable output in this state. Continued attempts only trigger more cleaning cycles, which adds more waste ink to the absorber and accelerates the problem. Do not attempt to reset the counter repeatedly without addressing the physical condition of the waste pad. I have seen units where the pad was pushed to the point of saturation and ink began seeping out the bottom. That creates a mess on your floor and can damage the printer's internal electronics if liquid reaches the mainboard. Do not use unofficial counter-reset tools found on random forums. Some of these utilities modify the printer's EEPROM in ways that can brick the firmware. Epson's own Adjustment Program is the only method I trust for this operation.
Long-Term Prevention
Run a nozzle check once a week if you use the printer regularly. Deep cleaning cycles consume significant ink and generate waste ink. Avoid unnecessary deep cleans. The L3110's standard cleaning cycle handles most minor clogs. Reserve deep cleaning for verified cases where a normal cycle does not improve print quality. Keep the printer powered on in standby mode rather than fully shutting it down daily. The printer performs minor maintenance cycles on startup. Full power-downs mean those cycles happen at boot instead of being spread across idle time, which concentrates ink waste into shorter bursts. Monitor the waste ink pad every six months. Remove the underside cover and check the sponge condition. If it feels firm and dry, you have plenty of life remaining even if the counter says otherwise. If it is soft, dark, and releases moisture, plan a replacement before the error locks you out completely.
