Question about HP LaserJet 4 plus Printer

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I need cleaning instructions for the HP laser jet 4 plus

I want to clean it before replacing the toner. I located a pdf service manual but it does not contain the fold out pages which show how to clean it and bypass the low toner message. I have completed the cleaning basics, ie dusting the outside and what I can see inside. While cleaning the inside, I noticed the toner had leaked and it is making the pages dark and I want to know how to clean the paper feed areas this affected.

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First vacuum out all the excess toner you can. Then clean off the feed rollers with a soft cloth dampened with alcohol. As far as the low toner message is concerned, I don't think you can bypass it. You can gently shake the cartridge to redidtribute the toner and temporarily bypass the message, but when the toner level drops again, you'll get the message.

Posted on Aug 22, 2009

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1 Answer

How can fix this error. i seen this "the hp laser jet 1018 has the front cover door open or the toner cartridge is missing"


Hello !!

For tha particular error you are facing, here is the reason. These printers have a switch that triggers an interrupt when the toner door is closed. Usually there is an arm on the door that pushes the switch. It is quite sensitive and delicate. Then sometimes there is a tab on the printer's toner and if that breaks off then that error will be generated.

But in your case as you have not removed or inserted the toner, I think option 1 is applicable to you.

Now, if this printer is in warranty you should send it to HP for Free repair/replacement.

and chek BLOW links too for paper jam and cleaning

Paper jam Message Displays for HP LaserJet 1018 1018s 1020 and 1020 Plus... Cleaning the Printer


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Dec 23, 2014 | HP LaserJet 1018 Laser Printer -...

1 Answer

The copy comes out one side fine the other side very light - unreadable


Faded print could be due to exhausting toner.

Secondly, if it happens even after replacing the toner cartridge or if you current cartridge has enough toner, it is most likely be due to dust at the laser reflecting mirrors inside the printers,
, which partially blocks laser beams and requires cleaning/ servicing by a professional.

GoodLuck!
Dont forget to appreciate the solution if I could have been of any help!
CreativeTECH

Dec 06, 2010 | HP LaserJet 4 plus Printer

1 Answer

How do I fix the magenta print that is fading on


This problem is somewhat common and is caused by dust/toner buildup in the laser optics. Unfortunately it requires quite a bit of dis-assembly to get the laser unit out of the machine in order to clean it. If you are mechanically inclined and really want to do this yourself just locate and dowload the service manual. It has instructions for laser unit removal. If you don't want to do this then you should be able to get it done for less than $100.
If you remove the 4 toner cartridges first then look at the area behind where the cartridges were. You should see kind of a black plastic box looking area with 4 "slots" about 1/4" high running from one side to the other. These "slots" are where the laser comes thru to write the print onto the drum in the 4 cartridges. You can try cleaning the front side with a cue tip. This might help but usually the problem is the toner/dust is on the inside of this unit and the only way to clean it is to remove the laser box and dis-assemble/clean it.
Good Luck and Thank You for using Fixya.

Apr 22, 2010 | HP Color LaserJet 2600n Printer

1 Answer

WHERE DO YOU REPLACE THE TONER CARTRIDGE IN HP COLOR LASER JET 4500N


Hi Mvsantora
If any help I dont know if you got the manual.
I have put a PDF files on my website for you to download.
hp color laser jet 4500n.
Hope it a help to you, You can download from this links.
Just click on the links it will download for you.
http://www.4all2sell.com/pdf/hp-color-laser-jet-4500n.pdf

you need a adobe reader to see this file If you not got a pdf reader you can download it off this link free.
http://www.adobe.com/products/reader/

All The Best: Pineworks

Jan 27, 2010 | HP Color LaserJet 4500n Printer

1 Answer

I have streaks on my print outs from hp laser jet


check your toner cartridge, check your fuser rollers and check your transfer roller assembly.

Sep 23, 2009 | HP LaserJet 4 plus Printer

1 Answer

Vertical blank line in printing


Problem 1:The laser lens is dirty.
Solution: Clean the laser lens.

Problem 2: A toner cartridge may be defective.
Solution: Remove the toner cartridges with the color causing the abnormal image. Replace it with a new toner cartridge.

Problem 3: The drum cartridge is defective.
Solution: Remove the drum cartridge and check for damage. If it is damaged, replace it.


To get help with cleaning copy and paste this link into your internet browser window:

http://kmbs.konicaminolta.us/productsattachments/manuals/magicolor2430DLUserManual.pdf

Wait for the pdf to load.

Then go to page 78 of pdf. Cleaning instructions are written with diagrams.

Do give my solution the highest rating if it solves your problem. Thank you for using fixya.


Aug 07, 2009 | Konica Minolta magicolor 2430 DL Laser...

1 Answer

Hp Laser jet 4 plus


Bad toner cartridge or fuser is burned out.

Aug 15, 2008 | HP LaserJet 4 plus Printer

2 Answers

Proper Manual cleaning


 

 

Hi Gidget,

I typically use "Chux" wipes and a shop-vac to start with. The wipes wipe up and REALLY HOLD the toner & paper particles, holds 'em tighter than a Hobo does a ham sandwich...

 

(I'll concede to the 'by-the-book' crowd that a specific (read EXPEN$IVE) type of vacuum cleaner is recommended by HP & most other service org's. I've used my shop-vac for 12+ years and have serviced thousands of HP LJ's, CLJ's, AiO's, MFM's, DJ's, OJ's, etc. I have never lost a single printer because I didn't use the 'right' type of vacuum...)

 

The Chux wipes are available from PartsNow, LLC; www.partsnow.com/.

They also carry maint kits for almost every HP printer made as well as Lexmark, Canon, Xerox, etc.

 

I use Cooper's Platen Cleaner (PartsNow) to clean the rollers using 2" x 2" gauze squares and nitrile gloves. Fedron works well too. HP's website mentions isopropyl alcohol and water as their recommended solvents. Use waht works best for you.

 

Having some 6-inch long cotton tipped applicators (wooden handled single ended Q-Tips...) helps tremendously.

 

In conjunction with the correct service manual, (in your case,  Combined Service Manual for HP LaserJet 4L / ML & 4P / MPHP Publication Number C2005-90988, August 1993), a thorough cleaning is very easy for almost anyone to perform.

 

PartsNow and several other websites have HP Svc Man's online for free, Google around.

 

A legacy utility from HP that I've not yet tried can print and cycle cleaning sheets to clean mainly the fuser, but also claims to clean rollers as well. HP printer specialists will recognize 'cleaning sheets' from HP's newer models, built in to the menu structure. The utility will allow you to do the same for older (LJ 4, 5, & 6) printers. Find it at:

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=125&prodSeriesId=25484&prodTypeId=18972&prodSeriesId=25484&objectID=bpl03846

 

Another Combined Svc Man is available as well that covers:

HP LaserJet 4 / 4M
(C2001A / C2021A)
HP LaserJet 4 Plus / 4M Plus
(C2037A / C2039A)
HP LaserJet 5 / 5M / 5N
(C3916A / C3917A / C3952A)

HP Publication Number C3916-90984 (March 1996).

 

As far as Scheduled cleaning, the cleverly formatted (LOL) table below lists HP's recommended service intervals. Over the years, I've found that adhering to the schedule has reduced unplanned downtime by almost 80%!!

 

DESCRIPTION / QTY / EST. LIFE (pages) / REMARKS  
1.  Toner Cartridge / 1 / 6800 (note 1) / When print becomes faint, shake cartridge to distribute remaining toner.  


2.  MP (Tray 1) Pickup Roller Assembly / 1 / 200,000 / Replace roller and separation pad together.  


3.  PC (Tray 2) Pickup Roller / 1 / 200,000 / Look for glazing and cracks.  


4.  Separation Pad / 1 / 200,000 / Look for glazing and grooves. Replace together with Pickup Rollers.  


5.  Transfer Charging Roller / 1 / 200,000 / May affect print quality and/or paper jams.  


6.  Fuser Assembly (115 V, 50/60 Hz) / 1 / 200,000 / May affect print quality and/or paper jams. Look for marks on rollers.

  
6a. Fuser Assembly (220 V, 50 Hz) / 1 / 200,000  


7.  LC (Tray 3) Pickup Roller / 1 / 200,000 / Look for glazing and grooves. Replace the Separation Pad.  


8.  Exhaust Fan / 1 / 25,000 hrs. (I've only had to replace one in 12 yrs...) 


Note 1: The estimated Toner Cartridge life is based on A4 or letter size prints with an average of 5% toner coverage, and with the density setting at 3.  

 

Best of luck,

Foxfur

Oct 16, 2007 | HP LaserJet 4 plus Printer

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