Question about HP LaserJet 4 plus Printer

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Serial port on HP Laserjet 4M Plus

I want to connect my Nextstation computer to the serial port of my HP Laserjet 4M Plus printer. This worked great with my old Lasejet III, but there the serial port was a 25 pin port and the new one is a 9 pin port. The printer documentation seems to recommend against a converter. The documentation from Next for the 25 pin port uses pin 20. Any ideas? I want the Laserjet 4 plus Documentation is't possible?

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  • hypnoticblaz Aug 27, 2008

    Using usb2serial cable to connect to HP LaserJet4+ and Vista OS says drivers installed successfully BUT can't get the damn thing to print. HELP. Please. Thank you in advance.

    BLAZE

  • Anonymous Mar 12, 2014

    laserjet 4 plus is printing grey on entire document

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Buy the adaptor for this these ports are called lpt ports they make adapters to run down to size

they also make a lpt printer port switch this is connected easy connect from printer to switch one printer cord then buy 2 other printer cords to hook to other computers
this is not a converter this is a switch

the printer cords can either be made on spot at most computer store or bought from fry's electronics they always have these in stock the proper lines your looking for

Posted on May 17, 2008

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1 Answer

HP Laserjet 5m, appear error code 50...please help.


Error 50 will be a faulty fuser unit or DC controller board. Try replacing the fuser unit.

May 20, 2009 | HP LaserJet 4m plus Printer

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Hp Laserjet 4 Plus printing very light - second post


Your description indicates that the problem is with the printer driver settings.
Go to Start, Control Panel, Printers and check the setings for Economode and ReT. The should both be off or Economode=off and ReT set to Med or Dark.
This should fix the problem. Let me know if this works or not and we can try something else.

May 03, 2009 | HP LaserJet 4m plus Printer

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HP Laserjet 4M Plus


That sounds like a problem with your printer driver to me. If the wrong driver is used, then print codes that the other device uses will not be interpreted correctly by your Laserjet 4M Plus, which will cause it to beep. Check the driver on your computer to make sure that you are using one designed for any of the following:

HP Laserjet 4
HP Laserjet 4+
HP Laserjet 4M
HP Laserjet 4M Plus

(Either the symbol "+" or the word "Plus" may be used but most commonly the + is the non-Postscript version and the word is used with the Postscript version. Just as an FYI, the only two differences between the M and non-M versions are the ability to speak Appletalk and the addition of the Postscript module, which is in one of the RAM expansion slots.)

Mar 29, 2009 | HP LaserJet 4 plus Printer

2 Answers

Mac laptop hooked up to HP laserjet 4 plus gets error message:


This printer will not work with a Mac - it has no postscript.

The only laserjet 4's that work with Macs all have an "M" in their name - 4M, 4M Plus etc.

You might be able to get a Postscript personality module for the printer to effectively upgrade it to the "M" version.

Feb 05, 2009 | HP LaserJet 4 plus Printer

2 Answers

Want to connect to my computer


What connector/interface does your PC has
9-pin or 25-pin connector

If it has 9-pin connector: use the following:
DB-9 RS-232 Serial Connection
or
DB-25 RS-232 Serial Connection

If it has 25-pin connector: use the following:
DB-25 Serial Connection
or
DB-25 RS-232 Serial Connection

If you are configuring the computer to use an RS-422A serial port, you need a special cable. Contact the computer or printer network manufacturer to see if an RS-422A cable is available. If no cable is available, contact your computer manufacturer for your computer pin assignments and have a cable constructed.

The default configuration for the serial port on the printer is for RS-232C serial communication. To set the printer to use RS-422A serial communication, change the control panel Serial Menu’s SERIAL setting to SERIAL=RS-422.

Oct 29, 2008 | HP LaserJet 4 plus Printer

1 Answer

HP Laser Jet 4 Plus to iBook G4 serial to usb


serial to usb is not plug and play so i don't believe this configuration will ever work.
parrallel to usb is plug and play 90% of the time.
purchasing and installing a port replicator is a 100% fix as long as the formatter on the printer is working properly. good luck!

Aug 21, 2008 | HP LaserJet 4 plus Printer

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Error 13-jam paper HP Laser 4+


HP LaserJet 4, 4m, 4 Plus and 4m Plus Series Printers - False Error Message 13 PAPER JAM ISSUE: After clearing all jammed paper from the HP LaserJet 4, 4m, 4 Plus, or 4m Plus series printer, the display still reads 13 Paper Jam . Even after cycling the power off and then back on, the error remains. SOLUTION: Open the rear door of the printer. There is a paper sensor near the upper right hand corner of the fusing assembly (just below the right edge of the long yellow warning sticker on the fuser) that can cause paper jam error messages even when there is no jammed paper in the printer. Toggle the thin black plastic lever up and down to make sure it is not stuck or sticky. The lever should be in the down position before closing the back of the printer. If the lever is stuck or missing, the printer will generate a false paper jam message. Hope it will help you !

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How is the machine connected? try changing the data cable if this doesn't work then shutdown your computer while the machine is on and reboot as if it is connected via LPT port some systems like to have the printer on before the computer.

Try this and I hope it helps if it doesn't then you might have a faulty print formatter board.
Thanks J

Nov 20, 2007 | HP LaserJet 4 plus Printer

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