Epson Printer Not Printing After Printhead Cleaning: Nozzle Check Shows Partial Black, Then No Ink Prints at All

Question:

My Epson printer will not print. I ran a nozzle check, and all the colors printed fine, but black only printed partially. I placed folded paper towels under the printhead, removed the ink cartridges, and used a syringe, tubing, and printhead cleaner to flush each color through the printhead. I changed the paper towels several times and saw all colors coming out, although I did not continue until the cleaner ran completely clear.

After reassembling the printer, I ran a power cleaning and waited 24 hours before trying to print again. Now the printer does not print anything at all.

I use only Epson ink. I also tried pulling ink into the cartridges but could not get them full, so I am wondering if the ink tubing may be partially clogged. I would like to purchase a syringe, tubing, and small adapter tubes that fit onto the syringe so I can try clearing the tubing, but I could not find that combination on your website.

I also have an ultrasonic cleaner. If the printhead is the problem, is it okay to put the whole printhead into the ultrasonic cleaner?

The issue started during winter after I turned on the heat. I had to keep running printhead cleaning cycles to get the printer to print. It worked fine until I was away for two weeks without printing. When I came back, the black started having problems. I added a couple of drops of wetter solution to the black, but it would only print about half of the fonts or letters. After trying to clean the printhead with printhead cleaner and paper towels, it stopped printing completely.

I am not sure if I have one problem or two. I also noticed that if the ink tanks dropped below about three-quarters full, the printer would have problems, but when the tanks were fuller, it printed fine. Even if both the printhead and tubes are involved, I would still like to purchase the syringe and adapters for the tubes.

Answer:

Based on your description, this may not be just one simple clog. There are several possible issues happening at the same time: a partially clogged black channel, possible air in the ink system, possible ink starvation from the tubing or cartridge/damper area, and possibly a printhead that lost prime after the manual cleaning.

The first clue is your original nozzle check. You said all colors printed fine, but black printed only partially. That usually points to a black-channel problem rather than a full printer failure. The black channel may have been partially clogged, partially dried, or experiencing ink starvation. Since the problem became worse after two weeks of non-use during winter heating season, dryness is a very likely contributor. Heated indoor air lowers humidity, and Epson printheads can dry quickly when they sit unused, especially if the capping station is not sealing perfectly or if the printer is exposed to dry airflow.

The fact that the printer printed better when the tanks were above three-quarters full is also important. A normal Epson ink system should not require the tanks to stay that full. If print quality drops when the ink level is lower, that can suggest an ink delivery or pressure problem. Possible causes include air entering the ink line, partially restricted tubing, a weak seal at the cartridge or tank connection, a damper issue, or a failing capping station/pump system that cannot maintain proper ink flow.

When you cleaned the printhead by placing paper towels underneath it and flushing cleaner through the cartridge ports, you may have removed some blockage, but you may also have introduced air into the printhead or ink channels. Seeing colored ink or cleaner come out onto the paper towel tells us that fluid can pass through at least part of the system, but it does not always mean the printhead is fully recovered. A printhead can pass fluid during manual flushing and still fail to print if the nozzles are clogged, if air is trapped inside the channels, if the printhead is not properly primed, or if the printer's pump/capping station cannot draw ink correctly.

The biggest concern is that after reassembly and a power cleaning, the printer printed nothing at all. That usually means one of several things happened:

The first possibility is air lock. If the printhead or ink lines were flushed and then reinstalled without being fully primed, the printer may be trying to fire ink through air instead of liquid ink. Epson piezo printheads do not like firing dry. Repeated cleanings without proper ink flow can make the situation worse.

The second possibility is that the capping station is not sealing or pumping correctly. During a cleaning cycle, the printer parks the printhead over the cap and uses a pump to pull ink through the nozzles. If the cap is dirty, hardened, misaligned, or not sealing against the printhead, the cleaning cycle may run without actually pulling ink. In that case, the printer can sound like it is cleaning, but the printhead remains unprimed.

The third possibility is that the printhead is still clogged, especially in the black channel, but now the other colors may also have lost prime from the cleaning process. If the head was flushed unevenly or if cleaner displaced the ink inside the channels, it may take proper priming before any color returns.

The fourth possibility is an ink delivery restriction before the printhead. Since you mentioned that you could not pull ink into the cartridges or get them full, the restriction may be upstream of the printhead. This could involve tubing, cartridges, dampers, tank vents, or fittings. Before assuming the printhead is completely bad, it is worth checking whether ink can actually travel from the tank or cartridge system to the printhead.

For the syringe and tubing question, what you are looking for is generally a printhead cleaning syringe kit with small silicone adapter tubes or tapered nozzle adapters. The exact size depends on the printer model and the size of the ink inlet posts or tubing fittings. Some Epson models use cartridge ports, some use dampers, and some have ink lines that require smaller flexible tubing to make a seal. If the adapter is too loose, it will leak and introduce air. If it is too tight or forced, it can crack a fitting or damage the inlet. When choosing tubing, soft silicone tubing is usually safer than hard plastic tubing because it seals better and is less likely to damage the ink port.

However, I would be careful about trying to force cleaner backward or forward through the entire tubing system without first identifying where the restriction is. A gentle pull with a syringe can help determine whether ink is flowing, but strong suction can collapse tubing, pull air through seals, or damage dampers. Likewise, strong pressure can delaminate or rupture the printhead internally. With Epson printheads, gentle pressure is critical.

Before flushing the tubes, check the simplest possibilities first. Make sure the tank vents are open and not blocked. Make sure the cartridges or dampers are seated correctly. Check whether any ink lines have visible air gaps. Inspect the capping station for dried ink buildup. If the cap top is clogged with sludge, the printer may not be able to pull ink through the head during cleaning. Also inspect the wiper blade and the area where the printhead parks. A dirty cap, blocked waste ink line, or weak pump can make a clog look much worse than it is.

Regarding the ultrasonic cleaner: I do not recommend putting the whole printhead directly into an ultrasonic cleaner as a first choice. Ultrasonic cleaning can sometimes help with stubborn clogs, but it can also damage a printhead if done too aggressively or incorrectly. The Epson printhead has delicate internal layers, adhesives, nozzle plates, electronics, and seals. If the whole printhead is submerged, liquid can enter areas that should stay dry, especially around the circuit board or electrical contacts. Ultrasonic vibration can also damage the nozzle plate or internal bonding if the power is too strong or the cleaning time is too long.

If ultrasonic cleaning is attempted as a last resort, the safer approach is usually to keep the electronics dry and only expose the nozzle plate area to cleaning solution, using very short cycles and low power. Even then, there is risk. I would treat ultrasonic cleaning as a last-resort method for a printhead you are already prepared to replace, not as a routine cleaning step.

The winter heat issue is also worth noting. When the heat is on, the air becomes dry, and the printer can dry out faster. If the printer sits unused for two weeks, especially after already showing black nozzle issues, the black channel can dry enough to cause partial letters, missing text, or blank black output. Adding wetter solution can sometimes help with ink flow, but if the clog is already in the printhead, capping station, or ink line, a few drops may not be enough to restore normal printing. Also, too much additive can change the ink's behavior, so it should be used carefully.

At this stage, I would approach the problem in this order:

First, confirm whether the printer is trying to print but producing blank pages, or whether it is giving any error messages. If there are any error codes, record them exactly. For example, Epson printers may show maintenance, paper jam, scanner, or general printer error codes depending on the model. Since you did not mention a specific error code, the issue sounds more like an ink delivery or printhead priming problem than an electronic error, but any displayed code would be important.

Second, do a nozzle check rather than a full page print. A nozzle check uses less ink and tells you whether any channel is firing. Avoid running repeated power cleanings. Power cleanings consume a large amount of ink and can fill the waste ink pad quickly. More importantly, if the printhead is not properly primed, repeated cleanings may not fix the issue and may make air-lock problems worse.

Third, inspect the capping station. If the cap is full of dried ink, cleaner, or debris, clean it carefully. The cap must seal against the printhead for the pump to draw ink. If the cap does not seal, the printer may never recover through normal cleanings.

Fourth, verify ink flow from the tanks or cartridges to the printhead. Since you had trouble pulling ink into the cartridges, that area deserves attention. Look for blocked vents, pinched tubing, air leaks, or dampers that do not refill properly. If the system only works when tanks are very full, that strongly suggests the ink delivery system may not be maintaining proper flow.

Fifth, if you use a syringe kit, use gentle suction or gentle pressure only. The goal is not to blast cleaner through the system. The goal is to determine whether fluid can move and whether the channel can be slowly re-primed. If you feel strong resistance, stop. Strong resistance usually means either a blockage or a closed path, and forcing it can damage the printer.

Sixth, after cleaning or priming, allow the printer to rest. Sometimes the best result comes after the printhead has time to rehydrate and air bubbles have time to settle. A few hours or overnight can help, but repeated aggressive cleaning cycles should be avoided.

It is possible you have both a printhead issue and an ink delivery issue. The original partial black nozzle check points toward a black printhead/nozzle or black ink flow problem. The fact that the printer now prints nothing after cleaning suggests the printhead may have lost prime, the capping station may not be pulling ink, or air may now be present in multiple channels. The fact that the printer performed better with fuller tanks points toward an ink delivery weakness that existed before the complete failure.

Addressing printer issues can be a complicated affair because these problems are very hands-on. For that reason, we are not able to provide remote troubleshooting, suggestions, or support for printer repairs beyond general guidance. We do offer an in-person evaluation and repair service through our local diagnostic facility, BCH Technologies Printer Repair Service [https://bchtechnologies.com/printer-repair-service]. Because demand is high, service is handled on a first-come, first-served basis, so it may take a few weeks before your printer can be dropped off. Our repair services are structured to evaluate and repair either the whole printer or specific parts, with clear instructions on how to proceed. However, we understand that our rates may not be the most economical option for every situation. For that reason, we highly recommend using self-help resources and online research whenever possible. A good starting point is YouTube, including our channel homepage, BCH Technologies on YouTube [https://youtube.com/@bchtechnologies]. Once you are on the channel page, use the search icon next to "About" on the right-hand side of the menu bar to search for your specific printer model or issue. I receive dozens of questions every day asking for videos on specific topics, and after creating videos for more than nine years, it is difficult to remember every single one. YouTube's search function is usually the fastest way to find the most relevant video, and it may also suggest helpful videos from other channels.

Thank you again for reaching out and for explaining the problem in such detail. Your description gives a much clearer picture of what may be happening, and I hope this helps you decide whether to continue with careful self-troubleshooting, inspect the ink delivery system, or have the printer evaluated in person.