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 HP LaserJet Pro 400 M401 DN has an 800 MHz processor and a print speed of up to 33 ppm in black and white.
Plug the cable into your printer and your computer`s USB port. The direct linking should trigger your computer to recognize the printer and start up the software needed to complete the installation. If your computer is still unresponsive, make sure you have enabled automatic device installations.
In Windows, search for and open Add a printer or scanner . Click Add a printer or scanner, and then wait for Windows to locate available printers. If your printer is found, click it, and then click Add device to complete the driver installation.
Maximum print speeds for 1-sided continuous printing on Plain media are 36 ppm for Letter (8.5 x 11 in.) and 35 ppm for A4 (210 x 297 mm). Print speed slows with larger and heavier media. NOTE: Print speeds are the same for Standard print-quality mode and High-Resolution print-quality mode.
Laser printers are faster than inkjet printers too. Print speeds are denoted in pages-per-minute (PPM). Laser printers have print speeds of 14 PPM and higher. The basic laser printer can print about 30 to 40 pages per minute, whereas high-end models churn out more.
pickup roller. in a printer, the roller that picks up pieces of paper from the paper tray. It usually has a soft, rubbery surface. The pickup roller should be cleaned or replaced if the printer is suffering frequent paper jams from the inability to pick up a piece of paper.
In Windows, search for and open Add a printer or scanner . Click Add a printer or scanner, and then wait for Windows to locate available printers. If your printer is found, click it, and then click Add device to complete the driver installation.
Place the printer near the Wi-Fi router. Open the Setup, Network, or Wireless settings menu, and then select Wireless Setup Wizard. Select the name of your network, and then enter the password to complete the connection.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP Laserjet 2200, Tray 2 Pickup Problem, Gears Clicking
ANSWER : Definitely not a solenoid problem. I’ve worked on tens of thousands of printers and never replaced a single solenoid. You probably knocked something loose when you installed the pickup roller. Maybe something to do with the gear on the end of the pickup roller shaft. You’ll need to take the gear assembly off to be able to see it.

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HP LaserJet 4

HP LJ P3015
ANSWER : well ^%$#(&^%[[[[

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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.

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HP LaserJet 4

Paper Mismatch Error on HP C6150, C6180 or C7280
ANSWER : Thanks a lot for your informational post. I had been working online and making money through paypal generator if you also want to know the secrets behind what you can do with this free paypal money adder visit the website and take away cash in your account.

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HP LaserJet 4

HP LJ 4350 – Tray 2 not lifting, no motors turn.
ANSWER : I can’t believe, pieces of paper was under the registration flap, now my 4250N is working.

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HP LaserJet 4

Good toner cartridges still available for HP LJ 4V?
ANSWER : Try directpreciseimaging.Com in Calif. Don’t worry about resistance unless there is none.

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HP LaserJet 4

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

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HP LaserJet 4

HP Laserjet 4 Plus LED display dim
ANSWER : My HP Laserjet Plus’s LED display went blank around 6 weeks ago. It had been acting strangely for about a month, when ready, instead of the usual 00 READY it would display 000READY, which got my attention. Well, it suddenly went entirely AWOL. The service manual said to check:

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HP LaserJet 4