Question about HP LaserJet 4 plus Printer

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HP Laser Jet 4 Plus to iBook G4 serial to usb

I have an HP LaserJet 4 Plus printer. It has a serial and parallel port. I purchased a serial to usb cable in order to connect the printer to my iBook G4. I installed the software that came with the cable. I downloaded and installed a HP LaserJet 4 Plus driver for OSX for my computer. When I go through Printer Setup Utility and select USB to identify the printer, which is on and connected to the computer, the printer is not on the list.
Any suggestions?

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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!

Posted on Sep 14, 2008

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I bought a new HP computer and it didnt have a serial port included in it. I purchased a secondary PCI Express card that gave me two serial ports. They are programmed in as com port 1 &2. They show...


Serial connection eh? Any reason you went with serial instead of parallel? The cards likely sell for about the same price or you could just buy a USB to parallel cable that would allow you to hook up a USB port of your computer to the parallel port on the printer.

The reason that it looks like the job disappears is likely due to the fact that the serial bus is not supporting bidirectional printing so the printer cannot acknowledge that it has received the job.

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I have a HP Laser Jet 4 Plus and recently purchased a new desktop computer. The male end of the printer cord does not have a female match on my new tower. Is there a connector or something that will make...


You have a parallel interface on the printer. It was commonly referred to as a Centronics 36 pin cable. Your computer probably doesn't have the interface to support it. The fix is to get a cable that will work from your computer to the printer. For this you will need a USB to Parallel (Centronics) cable.

It will be hard to go to a store and locate one but I know you can find them all day long on eBay for under $10.

Try searching for "USB to Parallel" cable and see what you come up with. If you're savvy on eBay, you might want to pick up some extra toner while your there as well. The part # for your printers toner is C3903A.

Nice black and white printer that should serve you well for quite a while. Not to great doing graphics but B&W it does rather well.

Good Luck

Oct 25, 2010 | HP LaserJet 4 plus Printer

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My PC has usb ports only. My hp 4550 laser printer has parallel port. How do I connect them?


you can purchase a parallel to usb converter. i have one for my panasonic dp 150 and works a treat. remember to select the usb port on your printer properties

Jun 30, 2010 | HP Color LaserJet 4550 Printer

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Hp Laser Jet 4 Plus Printer Problem!


open paper tray and clean whit wet cloth or alcohol paper feed roller (just at bottom on the mashine)

Oct 12, 2009 | HP LaserJet 4 plus Printer

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Can i connect hp laserjet 4p via usb ??


I have a similar situation. Trying to print from a HP LaserJet 4 using a parallel cable to USB. It will not recognize the printer. What is the installation setup or what is the trick to get it to print?

Jan 13, 2009 | HP LaserJet 4 plus Printer

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I am unable to get my trusty HP laserjet 4 plus to print now..... upgraded to a new desktop with USB ports only...my lj4+ only has serial and parallel ports. I used a serial to usb cord.... but not working...


Hi jragazoo:
There is a place called Tanner Electronics based in Carrollton,TX that can give you the information that you are looking for.

Tanner Electronics
(972) 242-8702

Jan 09, 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

Laser Jet 4 plus can't print with USB?


1.check the cable compatibility
2.install the driver HP laser jetIII

Sep 05, 2008 | HP LaserJet 4 plus Printer

1 Answer

HP LaserJet II p Plus will not print


Hi,

I am assuming that you are using Vista. Based on your post/description:
1. the HP Compaq 6710b has no parallel port;
2. the HP LaserJet IIP Plus is only capable of either serial or parallel connection;
3. hence you're attempting a USB to Parallel interface;
4. the printer is installed in your notebook and is set to USB port;
5. from the printer a test print can be performed but not from the Printer Properties in your notebook;
6. all printing jobs initiated from the notebook results in an "Error".

With the above in mind, may I point/suggest that:
a. Windows Vista driver will only enable your HP LaserJet IIP Plus' basic functions to work. It is not 100% compatible;
b. alternately, you can try using the XP installation CD/drivers of the printer;
c. the compatibility issue may be compounded by the USB to parallel interface;
d. the USB to parallel interface may be hampered by a known Vista USB issue;
e. you can try patching/updating the Vista USB driver. Since this has been a recognized issue with Vista, Microsoft has posted a fix for this here or here.
f. verify that the printer does not display a 22 or 40 Error.

If the printing concern has not been rectified after completion of the above procedures, you may need to:
i. download and install HP Universal PostScript Print Driver; or
ii. consider using a wireless print server connected to the parallel port of the printer; or
iii.consider replacing your printer. Sorry.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Mar 12, 2008 | HP LaserJet IIp plus Printer

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HP Laser Jet 1320n series


The HP LaserJet 1320 has a USB port and a Parallel port.

The HP LaserJet 1320n has a USB port and an Ethernet port.

USB-to-Parallel converter cables, like this one, are designed to attach a parallel device to a computer's USB port.

But you need to do the opposite (attach a USB device to a computer's parallel port). A USB-to-Parallel converter cable will not do this.

Feb 29, 2008 | HP LaserJet 1320n Printer

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