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!

  Glenna Quindao 2025-08-26 18:57:51  
  Bought a reset key and it did work well. You just gotta watch and follow carefully their tutorial in YT.
   2013-12-05 11:44:10  
  Holy crap this is a lifesaver / money saver / mental breakdown saver and just an amazing product. I was on the verge or completing my order for a new printer when I came across this site. Why spend $200. for a new printer when $10. can breathe new life into my old Epson Artisan 835 with CISS. I'm good to go now, just have to get a waste ink system installed and I'm back in business. Thanks.
  John Noel 2020-11-09 16:44:24  
  Thank you ! Work perfectly ! Model Epson WF 5620
  Obet Garduza 2008-11-05 22:52:33  
  THANKS FOR YOUR PROGRAM, IT HAS ALREADY SAVED ME £30 POUNDS ($51 DOLLARS ). THANKS OBET
  Roger A Witting 2005-03-16 10:54:28  
  With the help of your customer service department I was able to download the manual and it is everything you said it would be, I withdraw my prior review and award you a Great Rating. Thanks
  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!

  allaoua melouk 2010-07-13 06:43:26  
  You are magic man. I have downloaded adjustment program and resetted the waste ink counter. Thank you so much for prompt service!
  Franco Gigliotti 2012-10-03 10:11:21  
  Veramente efficace e veloce. Sono pił volte che utilizzo il programma WIC e mi sono trovato sempre bene. Certo, bisogna svuotare la vaschetta di recupero dell\'inchiostro. Se no...
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