Hello, everyone!
I had received two heaviliy clogged Epson ET-4750 -s (known also as L6190 in some parts of world) printers from Germany. First one was not printing at all, second one prints only black.
I wanted to replace ET2720 with which I am very happy 3 years (installed outer waste ink bottle) but wanted to replace it only for the lack of ADF and automatic duplex.
I was physically trying to unclog the first ET-4750 (like shown here: https://www.youtube.com/watch?v=XkiUcoywbd )
But after 4 power cleanings pages still came out completely white an the capacity of the brand new bought maintenance box was nearly its end so I was going the method shown above, then a few hours of struggle it started printing very badly in color but still not in black, and the moment I was going to detach printerhead to clean it off the printer it went into this Fax testing mode and then on next day it booted into printer inspection mode.
What I did since then:
- downloaded Recovery firmware from epson.com (available only there, not in eposon.co.uk or Epson.de or epson.bg) to try to reflash it but unfortunately at step 5 the setup doesn't recognize the machine connected to the PC via USB cable (the second machine which starts normal is recognized via the same cable and it says it will downgrade instead of upgrade firmware). Firmwares on both machines are the same.
- I tried to install the drivers and Epson printer package for ET 4750, at the step where it asks to connect the printer and choose between Ethernet, USB cables and WiFi, I choose USB cable and it recognizes it and goes to next step of setup, so it is recognized via USB cable, but not via the recovery firmware. WIC utility also recognizes it as 4750.
- I have backed up the EEPROM from the working machine and tried to restore it on the faulty one via Wic reset utility v5.90 but no matter what I try to do on the faulty printer Wic utility goes not responding until I unplug the USB cable or turn off the printer.
- there is a Printer Adjustment program for this model here:
https://www.2manuals.com/product_info.php?products_id=1886
But I am not sure it will work in restoring the EEPROM from the other machine on the faulty one as WIC reset utility already went not responding a few times trying to do it. I don't know any other way to reflash the EEPROM, you tell me if you know one please! I am newbie in reflashing printer firmwares.
Lisa, the chat support of 2manuals told me to go to Epson service center instead of everything else. Epson phone Hotline is useless, they care only about the the serial number and my name, they were most important then they simply sent me to service center, no help from them. From the service center they told me after everything I've tried the bill to replace motherboard, clogged printer head and do some software settings installations will be over 400 Euro, which is ridiculous like the price of a new machine. They also told me cleaning the print head is non effective and with a temporary effect, sometimes after it is getting even worse.
- there is some solution particularly for going out of printer inspection mode at:
https://www.2manuals.com/online/knowledgebase.php?entry=show&search-for=inspection+mode+&etc=IzQwNzhjNw__&article=YzFmYTQ1NTNhODkxNGRjYmEzZTk1ZmJiOTQxMTljMTk_
But Lisa the chat support didn't explain me how it works and I was unable to find the option to leave inspection mode in WIC reset utility v5.90. Maybe the option was available in earlier version of Wic reset utility which I don't have?
- There is a video from Kevin from BCH here:
https://www.youtube.com/watch?v=0XsIjxn3rzk
for the ET 15000 model that looks very similar to ET4750 explaining that there is some 5 digit code that if you know and enter in the screen with "up", "shift" and "fin" on it it may recover your printer back to normal but I don't have this code and Epson phone support said it doesn't work on my model.
Kevin also says the EEPROM of this model ET 15000 is reflashed only taken off the printer. Is it the same for ET 4750?
The local Bulgarian service center didn't tell me anything about reflashing the EEPROM, they said in a situation where printer loses connectivity like mine they directly replace the motherboard.
So is there any solution for me different than disposing this machine? How may I reflash the EEPROM or get the printer out of inspection mode?
Do you also have any working solution of heavily clogged ET 4750?
Thanks in advance to everyone giving me some working solution!
PS:Btw the power cleaning option of WIC reset utility was also unable to make the second ET 4750 print more than the page in black on the last image. So does the Printer adjusment program reach better results regarding cleaning and writing/restoring EEPROMs on faulty machines than the Wic reset utility?
I am expecting a resetter for maintenance box for this model to be able to use regularly the cleaning options of the machine, but if I don't manage to make at least one of this machines work it will be useless spent money.
