In article <[log in to unmask]>,
Roy Brown  <[log in to unmask]> wrote:
>In article <[log in to unmask]>, "Gary
>L. Biggs" <[log in to unmask]> writes
>>Another one bites the dust!
>>
>>The 2563 series of printers uses a <<guess what>> battery to
>>retain its settings. The next time the printer is powered off
>>it will revert to its defaults. Therefore, reconfigure your printer
>>and system to use the default HPIB address of 7. Ours has been this
>>way for, literally, years.
>>
>So where is this battery? Can I replace it myself? If so, what sort do I
>want, and how do I get to its location inside the printer? I've got
>drivers for most of the funny screw heads HP use, in my shiny new 32-bit
>interchangeable screwdriver set, including Rotork and Posi(x)drive......

I checked my 2563A Service Manual, no mention of the battery... but then
the manual is not intended for component level debug, just board level.

It did mention non-volatile RAM... but a battery powering RAM is hardly
non-volatile.  Maybe the words battery-backed up RAM would have been a
better choice.

I suspect that it is a nicad with welded posts that is soldered into one
of the boards.  If someone comes up with a decent description of it in
size, markings, etc. perhaps I can locate a source for them.  I suspect
there are a few of us who's printer is still going strong (mostly) and has
been off of maintenance for years.

I converted mine from HP-IB to serial a couple of years ago when we went
from a 922 to a 918.  Easy for anyone with a screwdriver and a static
wrist grounding strap.

I am sorry we didn't get the parallel, so I could try putting it on my
JetDirect EX.


--
Rick Gilligan
Senior Software Specialist
Computer And Software Enterprises, Inc.
E-mail: [log in to unmask]