PR4/DT Laser Printer Service Manual

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PR4/DT Laser Printer
Service Manual

$6.99

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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!

reza reza

2007-10-16 07:09:47

i am reza im luck have program printer epson cx3900 thans

shiju vengad

2009-06-11 16:12:40

Thanks John I figured it out.. I didn\'t read things as well as I should have.. and panicked a bit. The good news is my Epson 1280 printer is up and running again thanks to your manual. George

Michael Murphy

2025-01-16 12:42:26

I have an XP960 and its the best print I have ever had . . . . .I recently replaced the inkpads (like today) as i received the warning. . . .All of a sudden I get the End of Life drama. I needed the printer urgent. . . .I went to another company an waste $40.00AU only yo fing their software couldnt find the printer. . .(panic Button time) So I did a search and found you guys. . . . . It was so easy. . . .It took all of 10mins and the old girl is runnin again. I do have a brand new XP970 sitting in a box in the room but while this one is going, I wont touch it Thanks guys I appreciate you so much Michael (Australia)

Richard Obregon

2024-07-31 17:20:16

I was at 94 percent and got a warning from my printer that my ink pads were close to the end of their service life. After doing some research with Epson and some other stores I got the impression they just wanted you to trade it in on a new printer. This website was linked by a few different blogs and turned out to be the best alternative to keeping a fairly decent printer for a while longer. Thank you.

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

Stan Thunder

2011-11-30 01:08:34

Always concerned that these things don't work but this time - really happy to say the long distance (USA-UK) fix worked perfectly. Thanks and kind regards

Paul Jumbo

2019-04-19 18:47:57

I had Epson WF-2650 and it wasn't printing fully, skipping lines, even though colors were full.
I did a lot of cleaning, head cleaning, put new cartridge but no luck. I did some head cleaning using glass cleaner and syringes as shown on various youtube video.
After that, my printer didn't recognize two of the cartridges. I tried everything, cleaning contacts etc, nothing worked.

I was finally going to buy new cartridges however stores were closed today so I decided to look for chip-resetting tool but nothing good was available locally.

I came across this WIC reset utility and was really skeptical if it will work. I took the chance, bought the key, used the tool to reset firmware to chipless firmware, it was successful at the first go.
At this point, printer showed all ink levels 100%. I printed a test page and it came out perfect.
To make it even more interesting for me, I live in Europe and during one of the trip, I bought two sets of XL cartridges for this same model but printer didn't recognize in the past and I was going to throw them since these were no good for my EU model. I tried these again after chip reset firmware and voila, they works too.

I am amazed at the propaganda of these printer manufactures that even original printer cartridges from US didn't work on the model here in EUROPE, these used to fit perfectly but printer wouldn't recognize however, now they works too.
Today, I was almost ready to trash my 2.5 yr old and not much used printer but after a lot of trying and finally using WIC reset utility, the printers works like new and saved me a lot!

These were the best 20 CHF/USD I spent today!
Thank you very much and I don't need to worry about relying on a hardware chip-reset tool. I will now be able to use US model cartridges and re-fill i like without having to worry. I even printed some photos using this same printer on photo paper today and printer did an excellent job.

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Service Manual

Tuesday, January 13, 2026

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PR4/DT Laser Printer
Service Manual