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!

matt hoffman

2012-01-22 20:45:03

Wow, I cannot believe that this actually worked. I had some issues when ordering the reset key, but i contacted the website via email and they immediately got back to me and sent me the key code. ran the program and the printer now works again. I had tryed the reset utility from epsons website, but it didnt work how it was supposed to, it would reset but when you would go to print it would go back to the flashing inkpad needs replaced. I will have to print for a while and see how long this actually works, but for now this has saved this printer from going into the trash. I am glad i stumbled across this program and the website. (used on Epson Artisan 800).

Benjamin Di Terlizzi

2019-06-20 21:07:04

Fixed an Epson BX625FWD and saved it from going in the dump! Thanks.

Alberto Micker

2020-01-07 06:30:15

I bought the chipless key code and it worked as it should with the CIS...... Thank you

Oliver Kaufmann

2024-11-07 18:46:09

download easy wonderfull tutorial videos connection via usb cable first try with "trial" -_ excellent final try with bought key will never buy an epson again...

svenn svenson

2012-03-05 19:14:52

THIS IS A MUST HAVE UTILITY This reset key worked perfectly for my Epson Artisan 800. I tried the Epson reset utility (free from Epson) many times. It would "reset" the counter to "40%", then upon turning printer off - on, it would revert to "0%" with the error message that the inkpads had reached their end of life. This also happened whenever I performed a head cleaning. For those of us who use a CIS (I am not affiliated with inkproducts.com - but have been using their CIS for a couple of years and LOVE the quality and service) - it is imperative to be able to reset this waste ink counter. I should also add, the waste ink pad issue is real - don't expect to simply reset the waste ink counter and go happily on your printing way - you will have a disaster and you will experience frequent head clogging. You MUST use an external waste ink disposal system - either make your own for $5 or buy one. THIS + the reset utility is what enables you to get the true value from your CIS-modified printer.

Giorgos Zaxarias

2006-09-26 00:32:15

It\'s ok! thank you......................................

Bong Jak Lee

2018-01-09 07:29:50

I finally succeeded after a few attempts and the firmware downgrade worked !! Now I can use my non-OEM ink cartridges on my Epson printer Thank you for this excellent piece of software, well worth it Best regards

Marcio D Santos

2023-01-11 17:46:06

Whenever I try to do the ink charge, ink out appears here, so far it hasn't worked for me, could support staff be able to help?

REPLY: To use Ink Charge - ink levels must be more then 50%

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Service Manual

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Epson LQ-300 Printer
Service Manual