Original HP Laserjet problems! Help!!!

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#269

From: Alan Todd
Date: Sun, 11 Jun 1995 00:00

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I've recently inherited an original HP Laserjet printer. It works
great in Self Test, but as soon as you hook up a computer to it, it
goes off-line and flashes an error code 22. Anyone know what an error
code 22 is?
Also, there are two ports on the side of the unit: a round 9-pin
serial (RS-232 I presume) and a 25-pin D-connector (female pins). Is
the 25-pin connector parallel or serial? There's about 12 wires coming
from the back of it, so I presume it's parallel, but I've seen another
original Laserjet and it has a Centronics connector for it's parallel
port. I get the error code when I hook a parallel line from the
computer to the 25-pin port, but not when I hook the serial port on
the computer to the 25-pin port. If this 25-pin connector on the
printer is, indeed, a serial port, does anyone know what the serial
line settings are for this machine? Does anyone have info on the
switch settings on the motherboard? Any and all replies are
appreciated!
One more thing...if the motherboard is screwed on this unit, anyone
know where I can get one? I'm in the Philly area. Thanks!

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From: bigal@clam.rutgers.edu (Alan Todd)
Subject: Original HP Laserjet problems! Help!!!
Date: 1995/06/11
Message-ID: <3rff20$aoo@clam.rutgers.edu>
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