HP LaserJet 4

How to Identify and Fix Common Problems ?

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

The printer is either low in toner, the density is set too low, or the Economode may be turned on. Remove the toner cartridge and shake it. This will redistribute the toner and often will temporarily solve the problem. However, this usually indicates it is time to install a new cartridge.
If you are seeing the 41.3 error on a LaserJet 4, 4Plus, or 5 series printer, and you find a blank sheet of paper in the path, your printer is probably having a failure with the solenoid on the paper feed assembly. This is becoming a common issue as these printers get older.
An E1 or E2 error indicates the paper size setting does not match the paper size loaded in the input tray. Load the correct size paper or change the print settings, and then press the Cancel button . Go to HP Printers – Paper Mismatch error (Windows, Mac) for more information.
Paper Jams

This is a common laser printer problem. Primary causes include grime, dust, worn rollers, or incorrect paper weight. The most basic way to prevent paper jams is simply through regular cleaning of your printer. Also, replace parts as needed.

If your printer`s status displays “Printer in error state,” there may be a problem with the printer itself. Make sure the printer is turned on and connected to your PC by Wi-Fi or cable. Check it for low paper or ink, and be sure the cover isn`t open and the paper isn`t jammed.
To be specific, you should make sure that your printer has sufficient paper, ink or toner and without paper jam. If the printer cartridge`s status is faulty, you should replace it with a new one. After carrying out these operations, check if the HP printer can print properly. If not, try other methods immediately.
The printer stops feeding pages, the control panel displays an alternating E and 4, and the Error icon , Paper Error icon , and Resume light blink. This indicates that paper might be jammed inside the printer. Paper jams can be real or false. The printer might report a paper jam even when there is no jammed paper.
Verify that the toner cartridge and the transfer roller are seated correctly. Ensure that the tray pickup, feed, and separation rollers are installed correctly and show no damage or wear. Check if the rollers are installed correctly.
The Power light blinks at a steady interval when the printer is processing a print job. If the Power light blinks fast, the ink cartridge door might be open, or the printer might be in an error state. If an error message displays on the computer screen, follow the on-screen messages to resolve the issue.
Troubleshoot a blinking orange light on HP DeskJet.

It indicates firmware issues, paper jams, or improperly installed cartridges. Resolve it by performing a power reset of your printer.

1. Paper Jams. Paper jams are a common problem for printers, resulting in time-consuming and frustrating delays. It can occur when loose sheets of paper get stuck in the rollers or feeding mechanism of the printer.
Some of the most common printer problems that most of us have experienced include paper jamming, slow printing, uneven printing, and wrong colour output. If you use your printer frequently, we know how annoying it can be to have persisting problems with the printer.
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 printer is running low on ink, it may start printing blank pages. To check your ink levels, go to your printer`s control panel and select the Ink Levels option. Whenever the ink levels are low, replace the cartridges with new ones. You can also try shaking the cartridge gently to redistribute the ink.
If the ink cartridges are new, check if the safety clip or tape is still attached. Check if the paper that you`re using matches the paper type in your printer setting. Check if the printer is on a flat and stable surface. Most printer models won`t work if it`s tilted in an angle.
It may be that your network/internet connection was briefly interrupted. First, try to refresh the page in your browser. This will usually solve the problem. If that doesn`t work, try fully closing your browser, opening it again and reloading the video.
Error code 4 often occurs because Spotify can`t recognize your PC`s default DNS server set by your ISP. In such a scenario, the app can`t load required online resources correctly, resulting in error 4. Many users have addressed that issue by changing their PCs` DNS server to the universally recognized Google DNS.
(From: Tom Dunn ([email protected]).) Error code 51 indicates loss of laser beam for over 2 seconds. Check -5 V, also make sure there is no interlock mechanism damage, and +5 V at J451-1 on Laser Drive PCA. You may need new laser unit.
This is a rotational error on a fan. This fan is the located on the left hand side (when you are facing the front) and is the one located closer to the back.
Ink has run out. (The lamp on the ink tank flashes.) If printing is in progress, stop printing, replace the ink tank, and then print again. Printing under the current condition may damage the printer.
An E2 error occurs when the printer attempts to print a single-page or multi-page print job, and the paper length selected in the print settings does not match the length of the loaded paper.
Check the output of the AC adapter. If it is bad then it appears the battery has fully discharged and you need a new AC adapter.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP laser jet 3015 "Upgrade Error Call HP Support"
ANSWER : rgtr

Read Full Q/A … :

HP LaserJet 4

HP Laser Jet 4250 13.01.00 Jam in Tray 2
ANSWER : did you check if there’s multiple feeding while pulling papers

Read Full Q/A … :

HP LaserJet 4

Suggestions for previous generation of HP color laser jets?
ANSWER : You can just replace the drum wiper blades. http://www.uninetimaging.com/c/539/hp-8500-8550-ep-82

Read Full Q/A … :

HP LaserJet 4

HP PSC 1610 – problem installing hardware
ANSWER : If you want to get proper detailed information about hp printer then you should call on 1-888-924-2961 toll free number. They provide you step by step methods of installation process and driver support services.

Read Full Q/A … :

HP LaserJet 4

HP LaserJet 1160 pick-up problem
ANSWER : Take the black rubber roller out. Clean it and turn it 90-180 degrees so there is fresh rubber in the “corner”.

Read Full Q/A … :

HP LaserJet 4

evenly spaced horizontal lines on hp laserjet III printout
ANSWER : The lines would be a toner cartridge problem. Which paper tray? The MF tray or the optional paper cassette?

Read Full Q/A … :

HP LaserJet 4

Paper Feed Problem on HP R80
ANSWER : In the last examination it is our origination of death which chooses our responses to all the inquiries life puts to us. The most pleasant spot to be is in somebody’s idea; the most secure spot to be is in somebody’s petitions.

Read Full Q/A … :

HP LaserJet 4

LaserJet 4 won't Power Up
ANSWER : I haven’t seen that particular behavior on that model. It either works or it doesn’t. My first choice would be the power supply.

Read Full Q/A … :

HP LaserJet 4