Roland VS-300, VS-420, VS-540, VS-640 Service Manual and Cirquit Diagram

$11.99
Roland VS-300, VS-420, VS-540, VS-640 Service Manual and Cirquit Diagram
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Roland VS-300, VS-420, VS-540, VS-640 Service Manual and Cirquit Diagram


CONTENTS

1. Structure & Spare Parts
2. Electrical Section
З. Replacement of Main Parts
4. Adjustment
5. Supplemental Information
6. Troubleshooting
7. Service Activities

FORMAT: PDF Service Manual document!
Zip archive: 42 069 kB

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

  john Liang 2018-08-16 18:24:01  
  I took a gamble last week by buying a Epson Pro 4900 for less than $140 thinking if I could not get it going, I can at least take the remaining ink out of the cartridge and use it on my other printers.

The initial nozzle test was not so bad for a printer that was unused for about 1 year, I got six Nozzles firing at around 90% not bad, the next thing I did was the popular Windex treatment, I ran 4 sessions of Windex treatment on the printhead, first one lasted 1 hour, second one lasted 2 hours and third one lasted 4 hours and the last one lasted 8 hours, I got a fully soaked paper towel in my last two treatments, I ran a series of power clean on the non firing nozzles but the Green nozzle remain clogged.
At this stage I thought this program may be my last chance to rescue this printer. I bought the program at 6 pm today, I ran the CL1 clean on OR/GR channel and the green nozzle remain clogged, I then ran the CL2 clean on the same nozzles and the same result, at this point I thought maybe this printer is completely dead but I will give CL3 a shot, I went for dinner when CL3 clean was performed on the printer. I came back immediately printed the nozzle check I got the perfect Nozzle pattern on almost every single colour nozzle except Cyan which has a few bar missing, a quick CL1 clean on Cyan/Magenta fix that.
The next thing I did was to run a quick paper profile on this printer with X-rite software, I printed two test pattern page to calibrate the printer, then come the first real print on my Epson Stylus Pro 4900 it was absolutely brilliant, the best printer I have ever own and the IQ on one of the cheapest glossy media I could find was simply breath taking.

I have to say without this software my $140 purchase would probably end up in the rubbish dump.
I must say I was skeptical about the truthfulness of the success that other has with this software but with myself actually tried this software, I have no reservation but to recommend that anyone who has a clogged Epson Pro 4900 to give this program a shot it may just save your printer.

On the scale of 10 I would probably give it a 11 and it is more than just good!
  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...
  sabur khan 2007-07-25 00:17:39  
  I using the epson r350 printer, so in this time my printer required service. Iwant to purchise the utility service version 13, but have not c/card. please inform me to what can we do
  Steve Goodey 2004-05-02 04:51:15  
  I was a bit dubious about buying and downloading manual, never having used this site before, but I'm glad I did. With it I was able to sort a problem on my printer. Without it I wouldn't have known where to start. Thank you. Steve Goodey.
  HADAD HADDAD 2023-06-04 19:35:41  
  please reset my key my key is 522EDAZCZ9Z2273C thank you

-----------Reply-----------
Key is for one use only and can not be reset.
You need new key.
  Gerry McNeilly 2009-12-31 07:30:21  
  Thanks John, I received your reply and downloaded the correct version. I appreciate the prompt customer service, and I plan on returning as a customer. Regards, Gerry McNeilly
  Christopher Kennel 2011-12-06 21:27:38  
  EPSON Artisan 800 - 2manuals Reset tool for the Waste Ink Counter works like a charm... Best $9.99 I've spent in some time! 12,000 Pages printed (large jobs) and my ink pad was barely used... EPSON get a clue, many thanks 2manuals for having the foresight to correct their lunacy...
  kin thil 2007-02-08 19:44:43  
  I have reset the waste ink in my epson R230 printer. Worked fine
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