HP LaserJet 4+
My trusty LJ4+ is not printing. After I turn it on, it will print a one or two page document. But then when my computer sends another file, the blinking green button just below the display does not blink nearly as long as usual during file transfer and no indication of an attempt to print. The Printer Status window shows the file name briefly and then it disappears, which normally indicates that the file transfer is complete. There is no Error Code or any other indication of a problem, it just doesn’t print. If I turn the printer off and let it sit for some time, it will print a page or two and then not print.
Experienced technical support provide their insights in answering this question :
Been working on these since they first were released. Never seen a problem like yours. If it happens again, try doing an engine test, as it bypasses the formatter board. The engine test is located at the right side of the manual tray opening. Look for a hole in the side wall. Stick something like a paper clip into it to actuate the test button. It will then print a lined test page. If it does that, then it points to the formatter board as the cause of your problem.
How to Identify and Fix Common printer Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced technical support :
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 paper might not be engaged with the feed rollers. The paper-width guide is pressed against the paper stack too tightly. The paper tray is not completely inserted into the product. The paper settings in the print driver do not match the paper loaded in the paper tray.
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.
Do a hard reset on your printer. To do this you just need to turn off your printer, unplug for a few minutes and then plug the printer again. If that still doesn`t work, try turning the printer and your computer off, and then start it back up again. Try uninstalling and then reinstalling your printer driver.
Print jobs get stuck in the queue when a device stops printing in the middle of a job. This can happen for a variety of reasons, from a sudden power outage, low ink, no paper, a paper jam to interference by third-party firewall software.
There is a chance that your printer driver is outdated, and that can cause PDF printing problems. Most modern computers have an update center that will notify you when you need to update your printer driver. You might also try searching for updated printer drivers on your printer manufacturer`s website.
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.
Sometimes a printer will not print because the connection between the computer and printer has failed. For a wired setup, make sure that the printer cable is securely attached at both ends. If that does not work, try a different USB port on your computer (assuming you are using a USB printer cable).
Running out of ink
If your printer runs out of ink, obviously the pages will come out blank when you attempt to print out what you need. Most of your HP printers will already have some kind of indicator to let you know that you are running slot. Solution: The solution is a no-brainer. Replace the ink cartridges.
Sometimes a printer will not print because the connection between the computer and printer has failed. For a wired setup, make sure that the printer cable is securely attached at both ends. If that does not work, try a different USB port on your computer (assuming you are using a USB printer cable).
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Print file sent but no printing occurs
ANSWER : Been working on these since they first were released. Never seen a problem like yours. If it happens again, try doing an engine test, as it bypasses the formatter board. The engine test is located at the right side of the manual tray opening. Look for a hole in the side wall. Stick something like a paper clip into it to actuate the test button. It will then print a lined test page. If it does that, then it points to the formatter board as the cause of your problem.
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HP LaserJet 4+
when printing front and back, the front will print well but the back will fade
ANSWER : It happens because second side voltage is much higher and the board breaks. Are you getting this issue in auto duplex only, or same error you are getting when you print second side manually?
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HP LaserJet 4+
LJ 4200 Downld file now (Download file now)
ANSWER : just thanks this password generator that can allow you hack snapchat account online without any error at all.
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HP LaserJet 4+
Prints blank pages, won't print from computer
ANSWER : Don’t know why you replaced the fuser, but assuming you had print before, then it must have been something you did during the procedure. Only thing I can suggest is to recheck your work. Just because you reinstalled a connector doesn’t mean that it is seated firmly enough to work. Any flat ribbon connectors that you removed and reinstalled, check to see that the contacts are all flat and not peeled back.
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HP LaserJet 4+
My printer feeds through one piece of paper all the way and then a half piece of paper and stops. I pull out the paper to stop the paper jam and then it prints but sounds rough. After printing, it doesn't feed the paper all the way through.
ANSWER : And the first 2 sheets, the full and half sheet that go through first, are blank.
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HP LaserJet 4+
Paper feeds straight through without printing on an Epson R2400
ANSWER : I was able to get it to print the internal test page by holding down the sheet paper feed button while turning the machine on — then continuing to hold the sheet paper feed button. It took several attempts, feeding a page straight through, but eventually it caught the sheet and printed. So it may be a timing issue as others have mentioned. It could still mean that the feed rollers are worn out. The back side of the large D-shaped feed roller has visible abrasion on it. The abrasion is difficult to see as the roller does not stay with the flat side exposed.
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HP LaserJet 4+
Epson Artisan 835 print head cleaning question
ANSWER : I had the same problem. After reading the comments, I tried Liquid Wrench spray. 1st try got about sixty percent improvement. Tried again this time I let it set for about 10 min then did a head cleaning. Completely solved the problem. I am a little concerned about its use on plastic. So far so good.
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HP LaserJet 4+
My printing come out blurred
ANSWER : doris…There are usually 2 reasons for blurry output on this printer. First, make sure that the alignment is correct. You can get to it from the maintenance tab on the software that came with the printer. The other common cause of blurring is debris under the printhead. Hope this helps.
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HP LaserJet 4+