[comp.sys.hp] dip switch settings serial thinkjet hp2225d

jsdph@acad3.alaska.edu (HARRIS DENNIS P) (01/29/91)

i'm looking for information about the dip switch settings for a 
SERIAL  HP2225D  thinkjet printer.  i have a manual for the 
parallel version, but it only has settings for the character set 
selection.  i need to find settings for the dip switch that 
controls the serial port parameters, as well as serial cable 
pinouts.

if you have this info and can condense it into an e-mail message, 
please mail to me direct, since i rarely check this newsgroup.

thanks.

================================================================================
dennis p. harris					bitnet: jsdph@alaska.edu

  "The nation that controls magnetism controls the Universe." --- Diet Smith
================================================================================

rjn@hpfcso.HP.COM (Bob Niland) (01/30/91)

re: > i'm looking for information about the dip switch settings for a SERIAL
    > HP2225D thinkjet printer.  

No manual handy, but found this in a file...

| Mode   |           |                                              |
|   1    |   Down    | Map CR to CR only, not to CRLF               |
|   2    |   Down    | Map LF to LF only, not to CRLF               |
|   3    |   Down    | Perforation skip OFF (vs ON)                 |
|   4    |   Down    | Page length = 11 inches (vs 12)              |
|   5    |   Down    | Command set = HP PCL (vs IBM/Epson)          |
|  6-8   | All down  | Character set = HP ROMAN8                    |
|RS-232C |           |                                              |
|   1    |   Down    | RS-232C pacing is Xon/Xoff                   |
|        |    Up     | RS-232C pacing is DTR                        |
|  2,3   | Both down | Character frame is 8 bits, no parity         |
|  4,5   | Both down | 9600 bps                                     |

Regards,                                              Hewlett-Packard
Bob Niland      Internet: rjn@FC.HP.COM               3404 East Harmony Road
                UUCP: [hplabs|hpfcse]!hpfcrjn!rjn     Ft Collins CO 80525-9599

davids@hpsgl1.sgp.HP.COM (David SHUM) (01/31/91)

/ hpsgl1:comp.sys.hp / jsdph@acad3.alaska.edu (HARRIS DENNIS P) /  
 4:28 pm  Jan 29, 1991 /

I have emailed the following to Dennis:

For the 5 DIP switches labelled "RS-232C" (leftmost=1, rightmost=5,
U=up, D=down):

   Switch   Setting    Purpose
   ------   -------    -------
    1       U          DTR (Printer Busy)
	    D          XON/XOFF
    2 & 3   D D        No parity, 8 bits (or zero & 7)
	    D U        Odd parity, 7 bits
	    U D        Even parity, 7 bits
	    U U        Ones parity, 7 bits
    4 & 5   D D        9600 baud
	    D U        19200
	    U D        2400
	    U U        1200

For the serial interface, (input=received by printer, output=
transmitted by printer):

   Pin   Description
   ---   -----------
    1    Protective Ground (shield)
    2    Transmitted Data, output
    3    Received Data, input
    4    Request To Send, output
    7    Signal Ground
    11   Reverse Channel, output
    20   Data Terminal Ready, output

This information is from my copy of the manual and is provided
without any warranty.

David Shum
R&D -- Asia Peripherals Division
Hewlett-Packard Singapore