Epson LQ-300 Printer Service Manual

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Epson LQ-300 Printer
Service Manual

$8.99

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This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of
the Epson LQ-300. The instructions and procedures included herein are intended for the experienced repair
technician, and attention should be given to the precautions on the preceding page.

FORMAT: High resolution PDF document!
Zip archive: 2 500 kB


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We are in business since 2002 and do our best to give our customers perfect service!

Jonathan Irving Ramirez Hernandez

2019-03-26 07:56:43

Thank you! :) This actually works and its really helpful.

ann weston

2022-09-01 07:15:35

I bought one reset key and it hasn't even been a month yet and my printer is already telling me that the ink pad needs service. All of these good reviews that I have read on here is the reason i took a chance and purchased a reset key. I have not been able to use my printer at all. I am highly pissed off that not even a month after purchasing the one reset key and my printer is back at it again. I want a refund or to be able to try another reset code. this is a bunch of B.S.
REPLY:
Waste counters doesn't have any relation to how much time did user used the printer. Waste counters increase when printhead cleaning is performed. One printhead cleaning takes about 3-4% of waste counter. So if user make 25-30 printhead cleanings - the waste ink counters will reach 100% and overflow. Doesn't depend on time you will make this cleanings - in 1 month or in 1 year or in 1 day or in 3 years. Usually when printer is new and using Epson original inks - -there will be no need to make printhead cleanings. After Epson inks finish - users often buy third party inks - they have not so good quality as Epson and may clog printhead more often. So after Epson inks finish - users make printhead cleanings more often - as a result - after 20-30 printhead cleanings - counters overflow. So - try to make printhead cleanings less often.
Only ONE thing what does Reset Key - it resets waste ink pads counters to ZERO. Doesn't matter counters will be reset by yourself using Reset key ($9.99) or by Epson Service Center engineer ($50) - the result will be the same - counters will become 0%
Conclusion: use high quality inks!

Alex Watson

2019-08-10 22:40:01

thank you so much! i felt relieved... big time! i can now proceed with the printing jobs that were hang.

DongHwi Park

2023-12-11 18:06:41

I didn't go to the AS center and immediately solved it at home, and I'm using tissue to absorb lung ink! It wasn't a waste of money at all! Thanks a lot!

Nadio Bertelli

2018-07-30 09:23:03

Thanks for this amazing software! This really helped me in my issue with Epson L200 Printer. More powers to the devs of this software.

AILY ARELLANO

2019-09-30 03:37:52

Wow, this software really works! I was very reluctant to purchase the reset key, but after taking a few minutes to read all of the instructions and figuring out how to prepare the printer and computer...it was a breeze. Thank you for saving my printer!

Bonnie Richard

2025-04-20 10:32:28

Thank you so much. Purchased key followed instructions for reset everything working fine except cannot get ink flowing. Have used cleaner twice, nozzel clean, purge, still not working. Any suggestions? ET-2760

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Service Manual

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Epson LQ-300 Printer
Service Manual