HP LaserJet 4

How to Identify and Fix Common Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

You need to ensure your HP printer has enough paper, ink, or toner, and it is not stuck on paper jam. Also, check the status of your printer cartridge and try replacing it with a new one if it is not good enough. In some cases, your HP printer stops printing after you replace its parts.
Printers may produce poor quality printing if they are exposed to too much heat. Don`t place your printers in a high-temperature area or near other devices that produce excess heat. In addition, keep them away from windows, where heat and humidity can be high.
Restart devices

If your printer connects to a Wi-Fi network, disconnect your computer or mobile device from the network name (SSID), and then reconnect it to the same network name your printer is connected to. If the printer is available and has a ready status, the issue is resolved.

Reasons why your HP printer has ink but won`t print

This may seem obvious, but it sometimes happens: first make sure your paper tray has paper in it. Misalignment, clogged printheads, faulty data communication or insufficient ink levels can also be sources of the problem.

If your PC or the LCD screen on your printer is telling you that your ink cartridges are full but no ink is passing through to the paper, then it`s most likely that you are dealing with a clogged printhead. Blurry documents and images that appear faded are also signs that it`s time to remove the excess ink.
Among the more common technical issues that may bring down a printer are disconnected cables, malfunctioning routers, and low ink levels. Moreover, software problems such as interrupted connections or incorrect settings in your system`s drivers can also cause your printer to show up as offline.
Select Start , then select Settings > Devices > Printers & scanners . Scroll down to Related Settings and select Print server properties. Select the Drivers tab, and see if your printer is listed. If it is, you`re all set.
Several factors may cause the product to print blank pages, such as print settings, low ink, or the product itself. Check the following: Make sure the product is placed on a flat, stable surface that extends beyond the base in all directions. The product won`t operate properly if it`s tilted or at an angle.
Verify the ink cartridge(s) is inserted properly. Some cartridges snap in place, and if they are not inserted fully, the printer won`t print anything. If a lever is moved from its original position to allow for installation of ink cartridges, ensure it is returned to its original position.
Here are the most common causes of a printer printing faded text or images: Low ink or toner levels. Toner sticking to the fuser roller or problems with the transfer roller. Low ink or toner density settings.
Faint, streaky or spotty prints are all common signs of a clog but a simple cleaning can usually get your HP ink cartridges working again. Printheads clog due to infrequent cartridge use. If you regularly go a few weeks without printing, your cartridges will eventually dry out and need to be replaced.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Photosmart 8250 ink system failure problem??
ANSWER : To anyone looking for the firmware file

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HP LaserJet 4

HP Color Laserjet 3800 problem when printing color
ANSWER : Do a cold reset

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HP LaserJet 4

hp deskjet 960c printing problem
ANSWER : RE: HP 960c printer. I have new cartridges and the test page prints out full color. When printing a color document the page prints in black & white. Why not color? The print page is on color not black & white.

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HP LaserJet 4

HP Officejet Pro L7680-problems w/black print head
ANSWER : VLCM Print tech supporters are very helpful to support printing related issues. They are industry certified technicians. they have 12+ years of handful experience. visit page – vlcmprint.com

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HP LaserJet 4

Hp printer not printing
ANSWER : Check estimated ink levelsFollow these steps to check the estimated ink levels.

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HP LaserJet 4

HP Photosmart 8750 intermittent serv. stat. stuck
ANSWER : I had this error after the printer sat idle for many months. I thought it was the cartridge drive belt stretching, because it was extremely loose and wouldn’t move the carriage due to slippage. Then I noticed there was a gear belt tensioner to the right side that had some movement. Sure enough, when I shined a flashlight into the ink reservoir, there was a spring that had fallen down inside. Looking at the plastic belt tensioner, it looks as if the spring was held on by a plastic post that had broken off. This is most likely the cause of many of these errors, because the plastic break is very clean and not readily visible, (a design flaw in my opinion). Rather than trying to replace the part, I am going to try tapping a hole in the plastic and inserting a machine screw that can hold the tension spring in place. It also looks like the metal notch for the right hand loop of the spring, would not prevent the spring from slipping off at some point, so using a metal file to enlarge the notch may be necessary. If you’re lucky, your spring may have just popped off and is inside the ink reservoir. This may be one reason why the printer was discontinued so soon. One lousy five dollar part makes the whole printer worthless… I use this this printer primarily because it is easy to clean the heads by removing the carts, instead of having to disassemble the whole damn thing, as in ink tank designs. It makes beautiful 13×19 prints with better color accuracy than my Vivera 6 ink printer.

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HP LaserJet 4

help with hp photosmart 7760
ANSWER : MIne is doing the same thing tonight!!

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HP LaserJet 4

black cartridge not printing
ANSWER : https://www.youtube.com/watch?v=thrZtvAhKm0

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HP LaserJet 4