PR4/DT Laser Printer
Service Manual

$6.99
PR4/DT Laser Printer<br> Service Manual
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This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of PR4 / DT printers.

PREFACE
This manual has been written for the field engineers who will be servicing the PR4 / DT printers.
It provides all the information needed to install and service these printer models.
SUMMARY
This manual is divided into eight chapters.
The first four chapters provide the installation, functional check and adjustment procedures while the remaining
chapters provide the disassembly and adjustment procedures.
PREREQUISITES
Knowledge of similar products is helpful to better understand the topics discussed in this manual.

FORMAT: High resolution PDF document!
ZIP archive: 958 kB

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

  diegog_64 gaston 2008-01-23 06:33:24  
  This will be good
  rdlaw law 2023-01-19 22:37:39  
  It was best $10 I ever paid in my life!!!
  alla melouk 2010-09-17 06:59:02  
  Thank you for WIC Reset Utility it worked 3 times with no problem I have Epson Artisan 810 and Epson D78
  MANMOHAN MEENA 2015-05-29 11:20:48  
  I bought a key (25key) Use everything correctly
  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!
  cesar torres 2017-08-09 19:33:25  
  hi please i don't understand the advantage of your systeme the price of NEW cardridge is less than the price of your key?? THANKS

===== John====
Reset Key is used for Waste Ink Counter reset.
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