Question about HP LaserJet 4L Printer

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On & off switch

Where is the "on and off" for the hp laser jet 4L printer

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Re: on & off switch

There is no on or off switch. It works automatically. After print jobs are completed the unit turns off after a few minutes.

Posted on Feb 04, 2008

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Re: on & off switch - HP LaserJet 4L Printer Printers & Copiers

I don't think there is one.

Posted on Jan 17, 2008

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H P laser jet 4L will not turn on after a long disuse

When its not using so many months,mechanical jam may occured, in this condition its draws more power when its switched on, fuse may blow off, check primary power section in power supply board, replace the fuse with same rating then try of luck...OLD IS GOLD..

Sep 06, 2011 | HP Printers & Copiers

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HP LaserJet 6p Printer Drivers Downloads for Windows 7

Go to Select the support/driver link. Put in your model and hit enter. You will then see a menu with all of the operating systems. select the full download.

Jan 03, 2011 | HP LaserJet 6p Printer

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The Out of paper light on my HP Laser Jet 4L is flashing even though the printer has paper. Can this be fixed?

The pickup roller most likely needs to cleaned. Normally paper dust causes this condition. Put the printer off and try again. If you still have the same problem then you probably have paper stuck in the printer somewhere, the paper sensor under the printer is broken. This is quite an old printer and spares might be a problem.

Good Luck

Apr 13, 2010 | HP LaserJet 4L Printer

1 Answer

I just bought a Compaq Presario computer and need an adapter cable for my HP Laser jet 4L. Where can I find one?

The HP Laserjet 4L uses a standard 25pin parallel printer cable.
These can be purchased at your friendly computer shop or on the Internet.

Mar 29, 2010 | HP LaserJet 4L Printer

1 Answer

Only prints one page then stops

I have a HP Laser jet 4L that prints one page then skips the next.
I uninstalled the printer then re-installed which temporarily fixed the problem, now it's doing the same thing again. Please help!

Nov 28, 2008 | Printers & Copiers

1 Answer

HP Laser Jet 4L fuses

The fuses are located on the DC Controller (main bottom board). Getting to the DC Controller Board on a 4L printer is a very significant disassembly. Best left for a pro but if you really want to do it, I have attached below a link to a scanned copy of the service manual. Please keep in mind that the scanned copy is not a nice fresh PDF as most manuals as the 4L was made in 1994 and HP has physically scanned the printed manual for distribution. Just look up the removal and replacement of the DC Controller Board. Once removed, the fuses are glass buss style, readily available at any Radio Shack.

Gotta love that old technology.

Hope this helps you. :),%204ML,%204P,%204MP%20Service%20Manual.pdf

Aug 27, 2008 | HP LaserJet 4L Printer

1 Answer

Hp laser jet 4L problem

try holding the "online" button down when turning on the printer release when you get "cold reset" message

Jun 26, 2008 | HP LaserJet 4 plus Printer

1 Answer


Dear pamswab.

there is an interrnal fuse in the printer you most open it and found the power bourd the fuse there

Jun 26, 2008 | HP LaserJet 4 plus Printer

1 Answer

HP Laser Jet 4L Printer Model #C2003

Try lowering the toner density using the printing software or the printer menu.

Feb 03, 2008 | HP LaserJet 4L Printer

2 Answers

HP Laser Jet 4L - No Power

it's possible that the power switch alone just needs cleaning. Take it apart down to seeing the copper contacts and then polish the copper contacts with emory cloth.

Sep 09, 2007 | HP LaserJet 4L Printer

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