LaserJet 4L/ML, 4P/MP Printers
Service Manual

$6.99
LaserJet 4L/ML, 4P/MP Printers<br> Service Manual
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LaserJet 4L/4ML, 4P/4MP Printers Service Manual

This manual contains the necessary information to service the LaserJet 4L/ML, 4P/MP Printers

Contents:

1 Chapter
A detailed matrix of printer features is followed by general information on the four printer models. Specifications, major assembly locations, safety and regulatory information are all included. The chapter ends with a discussion of the service and repair philosophy along with a discussion of the service and repair philosophy along with useful information on obtaining technical help.
2 Chapter
Recommendations pertaining to the physical location of the printer and consumables are followed by general print media specifications (including specifications for paper, envelopes, labels and transparencies).
3 Chapter
This chapter provides the step-by-step installation and setup procedure, along with detailed information on using the Control Panel for each printer model. Sample self tests and printer reset information are also included.
4 Chapter
Turn to this chapter for the information on routine printer maintenance, including consumables and printer cleaning procedures. Paper jam procedures are also included.
5 Chapter
Here you will find the basic theory-of-operation information required to understand the various printer systems and how they function together.
6 Chapter
This chapter contains step-by-step procedures for replacing all the printer's field replaceable units. Assemblies are grouped by physical location in the printer.
7 Chapter

Turn to this chapter for diagnosing and troubleshooting printer problems. Start with the general troubleshooting flowchart referencing the paper path and printer component location diagrams for assistance. Error message tables and image defect samples are followed by engine test and other diagnosticprocedures. The chapter ends with more troubleshooting tools such as an image defect ruler and wiring diagram.
Index

Convenient tool for looking up any field replaceable unit. All parts are sorted both by part number and by part name. Parts are cross-referenced to their corresponding exploded view illustrations.

FORMAT: Scanned Copy
ZIP archive: 10 338 kB

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

  TARIQUL ISLAM 2007-12-06 07:48:22  
  HOW WILL I GET THIS (R230) SERVICE MANUAL COMPLITELY FREE
  pierre commenge 2011-06-08 14:51:41  
  it does not work, can not recognize ink cartridges always displayed, Epson SX400 ========== REPLY ============== The WIC reset utility can reset Waste Ink Counters only. Not Ink cartrigs levels in SX400. You can use auto reset chps to reset the ink levels.
  Jose Fernandez 2020-08-08 07:19:34  
  I replaced the ink pad unit and still nothing i you tube it and wic reset it in five minutes not a scam it was amazing thank you
  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!
  excape excape 2020-08-21 16:19:34  
  Unbelievable how the reset worked so well! Thanks a lot.
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