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LPT1 and Windows 95

By joe landwehr ·
Installing an HP DeskJet 842C printer on a Compaq Presario 972 CDS computer. Install program from HP won't see the printer connected to LPT1. Can't print from Win95, but can from DOS or the DOS Window in Win95.

Have installed Win95 Service Release 1 and set the parallel port to "Standard" from ECP (recommended by MS KnowledgeBase). Still won't use LPT1. Win95 Device Manager reports that LPT1 is functioning properly and has no device conflicts.

Have downloaded the latest install/drivers from HP's site.

Where do I go from here?

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LPT1 and Windows 95

by rbolin5957 In reply to LPT1 and Windows 95

my recomendation would be to uninstall the printer, then reboot and let windows find it,point browser to location of drivers and install them. Or just uninstall the add new.

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LPT1 and Windows 95

by joe landwehr In reply to LPT1 and Windows 95

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LPT1 and Windows 95

by todd In reply to LPT1 and Windows 95

Most HP printers require bi-directional communications (ECP) in order to print from with-in windows. To print from DOS you only need one way communications (STANDARD).
Not all printer cables support bi-directional. Make sure your using an IEEE-1284 printer cable.

If your not sure, you may want to replace it with one.

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LPT1 and Windows 95

by joe landwehr In reply to LPT1 and Windows 95

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LPT1 and Windows 95

by ksearch In reply to LPT1 and Windows 95

I'd try a new cable, and then the reinstall. If both of those don't work, there is the possibility that IRQ 7 assigned to LPT1 is not functioning. That that IRQ line is bad. Try the printer on LPT2 which uses IRQ5 (assuming no other devices are on IRQ5).
Just a thought.
kel.

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LPT1 and Windows 95

by joe landwehr In reply to LPT1 and Windows 95

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LPT1 and Windows 95

by fsaucedo In reply to LPT1 and Windows 95

Compaq machines are famous for sharing IRQ's with many of its integrated devices. From your description, I imagine that that is what ia happening. Since you can print from DOS, all of the hardware is working. So it has to be a software/hardware glitch. What you are shooting for here is to leave LPT1 set on 0378 and IRQ 7 WITHOUT either one of them being shared. Double check you device manager for you LPT port. Look at the "resources" tab for the port and make sure and IRQ is assigned. If there is none given that means it is being shared with another device. If you have integrated sound, modem, and/or NIC, try disabling one at a time using Compaq's diagnostics. To get to them, reboot the machine, wait till the square cursor shows up on the right hand corner and pres F10 or you might be able to do this from within windows. Most of the new model come with the new Compaq Insight software that allows you to view and change the hardware settings in your machine.
Hope this helps!

FlavioSaucedo

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LPT1 and Windows 95

by joe landwehr In reply to LPT1 and Windows 95

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LPT1 and Windows 95

by rwoods In reply to LPT1 and Windows 95

Under the print driver properties in the 'Printer' folder, click on the details tab. Check to see if the driver has captured LPT1:. This is done because DOS needs to be able to print LPT1: even if it is networked printer. (ex. LPT1: \\server\share).If you see that the port has been captured, click on the button 'End Capture'. Then 'Apply', then 'OK'. Hope it helps

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LPT1 and Windows 95

by joe landwehr In reply to LPT1 and Windows 95

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