HP LaserJet 4
How to Identify and Fix Common Problems ?
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White streaking through the printout or an entire missing color both indicate an empty cartridge. If the cartridge is depleted of one color, it needs to be replaced. Each color is necessary to create the colors used in day-to-day printing.
If you notice white or dark lines in your prints (also called banding), try these solutions before you reprint: Run a nozzle check to see if any of the print head nozzles are clogged. Then clean the print head, if necessary. Make sure the paper type setting matches the type of paper you loaded.
Streaking is usually caused by a worn out drum unit or spent toner cartridge. Drum units are a consumable and only need to be replaced after the use of 3 or 4 toners. Not all printers use a separate toner and drum unit.
A printer printing lines on the page are normally caused by a blocked, dirty, or damaged print head. Blocked ink cartridge nozzles, or not removing protective seals correctly when you installed a new ink cartridge can also cause missing lines of print.
Streaks and unwanted lines could mean that the printer heads are out of alignment. There`s an alignment tool in the printer`s control panel. If that`s not the issue then the printer is dirty. Printer ink stripes may appear along the edges of the paper, which means there`s ink on the rollers and other parts.
There are four primary causes for horizontal banding on prints from inkjet printers, (1) nozzle clogs, (2) mis-aligned print heads, (3) low quality print settings (4) incorrect paper thickness settings. Below we will describe each of these causes for horizontal banding as well as ways to try and fix them.
A vertical line is always a line that runs from top to bottom, or, from bottom to top. Standing lines are also a type of vertical line that runs vertically. We usually draw vertical lines between the bases of a trapezoid or a parallelogram….
Conclusion. If your laser printer is causing horizontal black lines you either have a problem with the optics or the drum. Cleaning the optics and replacing the drum should fix the problem in most cases.
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
hp officejet pro 1150c
ANSWER : great
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
hp 8600 pro when power on, paper jam message appear but there is no paper jam in the tray
ANSWER : Hp 8180 Photosmart All In One code keeps says paper jam and carriage jam when neither are jammed. I followed all the recommended things to do. I live in Raleigh NC any place to take this or any suggestion.
I just bought an officejet 3830 2 weeks ago. Now it won't print at all! Says inkjet jam. It's not! I've done all the fixes as per hp's website now what?
ANSWER : Take it back and exchange it under warranty.
ANSWER : Make sure the tape is removed from the ink cartridges and if it is run a print head cleaning cycle. When you install ink cartridges in that model you leave the print head latch down or it can cause printing issues.
HP Officejet Pro 8500 Carriage Replacement steps
ANSWER : Hi Mark:
PROBLEM: HP OfficeJet 7110 Series
ANSWER : I Have a HP office jet 7110 and doesn’t print at all, suddenly my printer not working well .when i am print out some documents yellow,black, and dark green color only coming . how can i fix it problem ?
HP Officejet 7310 problem
ANSWER : My HP Officejet7310xi All-in-One has an error message 0x886a789a on a blue screen, with Auto Answer, !, and Power (Print On) flashing. What does this indicate?