HP LaserJet IIIP+
How to Identify and Fix Common Problems ?
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A gray cast indicates that the drum is not getting or holding a sufficiently strong charge to hold the toner. It looks like either the OPC drum or the corona wire/primary charge roller is not working correctly. Try replacing the cartridge (the drum is part of the cartridge in many HP laser printers, including yours).
the backgrounding is most likely due to a bad toner cartridge the toner may be damp or too old install another toner cartridge during the printing process the best toner particles are used first. so at the end of the life of the cartridge. only low quality toner particles remain and that may cause backgrounding.
Many people assume that when a printer prints something in black and white, it doesn`t use the color cartridge. But with grayscale setting printing, the printer uses color ink or toner cartridges in combination with black to produce different shades of gray.
A common cause of faded, faint printouts from your inkjet printer is dried ink particles causing a blockage in your printer. The printheads on an ink cartridge can be become blocked if the printer is not used for a period of time, so it is recommended to print a few pages each month to maintain the print quality.
The probable cause of your gray printing is your print job includes a background. In a word processor like MS Word, you can add a background or watermark that is nearly impossible to see on your screen and only shows up when printed. A similar situation exists when printing a scanned image.
Low ink or toner levels. Toner sticking to the fuser roller or problems with the transfer roller. Low ink or toner density settings. Low or high humidity.
HP® is proud to offer both inkjet printers and laser printers that are capable of double-sided printing.
Enter Control Panel > Devices and Printers. Right click the printer icon, then click Printer Properties. Click the Device Settings tab. Set the Automatic Two-Sided Duplex Accessory as installed and click OK to save the change.
In the CMYK model, grey is obtained by adding black (K). To compose a tone of grey, make sure that you set your black (K) color to a certain percentage between 0% and 100%. Avoid using the three other colors (by setting Cyan, Magenta, and Yellow to 0%).
Information about Gray / #808080
In a CMYK color space (also known as process color, or four color, and used in color printing), hex #808080 is made of 0% cyan, 0% magenta, 0% yellow and 50% black. Gray has a hue angle of 0 degrees, a saturation of 0% and a lightness of 50.2%.
Run a nozzle check to see if any of the print head nozzles are clogged. Then clean the print head, if necessary. The ink cartridges may be old or low on ink, and you may need to replace them. Your printed colors can never exactly match your on-screen colors.
Grayscale printers apply halftones to print jobs to print them; halftones let the printer produce many shades of gray and high-quality images. Generally, the most important characteristic to consider for halftones in grayscale printing is line screen frequency, expressed in lines per inch (lpi).
Why is CMYK black not black? If you use 100% K to create a black in CMYK color mode, you`ll end up with a deep gray, not a true black. To get rich black, you need to add the right amount of all four colors: cyan, magenta, yellow, and black.
You can visually inspect the remaining cartridge levels on your printer. If they are full but you still cannot print properly, check the cartridge`s expiry date. Expired ink cartridges often dry up which causes problems in the print results.
Low ink or toner levels. Toner sticking to the fuser roller or problems with the transfer roller. Low ink or toner density settings. Low or high humidity.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
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 IIIP+
HP Laserjet 4000 Printing Blank Pages
ANSWER : Would just like to say thank you to every one. I am a teacher and need my printer for a ridiculous amount of paper work that keeps me away from working with students. My printer was down for 5 school days. I finally got the new toner and it still didn’t print. After following your meticulous instructions I was able to get it working. Thank you Thank you Thank you to all people who contributed to this.
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HP LaserJet IIIP+
HP Color Laserjet blank pages – only jetdirect page
ANSWER : What about the engine test? To do that, drop down the front tray. Feel around on the left side at the top and you’ll feel a little plastic dongle. If you lift up on that it will initiate an engine test page. That will be a page containing lines of each color.
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HP LaserJet IIIP+
What repair needs to be done for a "50 needs repair" message on an HP Laserjet IIIP?
ANSWER : I don’t know what you mean by good toner cartridges. They haven’t been built in about 10 years, so if they are new OEMs in the box, they are guaranteed to fail. The 50 error on that printer is mostly a burned out fuser lamp. This site was sold, so as you can see, there are no more kits available.
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HP LaserJet IIIP+
HP LJ 1150 Printing multiple pages on one sheet?
ANSWER : Hey friends.
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HP LaserJet IIIP+
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 IIIP+
HP LaserJet 2200D won't print configuration page
ANSWER : Find someone with a HP LaserJet 4100 and you can configure the card to the IP you want:
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HP LaserJet IIIP+
Black line printing in the middle of the page from top to bottom
ANSWER : Take out the toner cartridge and look at the drum. If you see the line, replace the cartridge. If you don’t, then you need to replace the fuser assembly.
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HP LaserJet IIIP+