HP thinkjet printer HP2225P

From: Don Maslin <donm_at_cts.com>
Date: Thu Apr 16 23:20:35 1998

On Fri, 17 Apr 1998, Tony Duell wrote:

> Another radio rally bargain...
>
> I'm not sure if this is 10 years old, but anyway...

More than that.
 
> I've got an HP thinkjet printer here, model 2225P. It's a
> battery-operated unit with a parallel interface.
>
> The battery pack has a 2-pin plug on the back, which looks as though it
> connects to the standard HP 8V 3W charger. Is that right? I've got those
> by the dozen...

Probably so, as they speak of a normal 7.2-7.6vdc range from the battery
pack.
 
> The parallel interface is a DA15-S connector. Does anyone know the
> pinout. I'm pretty sure (from looking inside) that it's TTL level and a
> subset of a centronics port.

I wonder if someone may have converted it to HPIB as the non-portable
parallel version uses the normal Centronics connector.

> And what do the DIP switches above the parallel interface do?

See following for switch information.
 
> I've got the user manual for the GPIB version - are the escape sequences
> the same?
>
> Thanks in advance for any help.
>
> -tony

                                                 - don

At the site below, Thinkjet docs are listed as "tjxxxxx".
 
 
from ftp.hp.com/pub/printers/support_docs/tjmode.txt
 
 
                                          FILENAME: BPD01154
                                                            
MODE SELECT SWITCH SETTINGS FOR HP THINKJET PRINTERS (C,D,P)
 
     ISSUE: What is the purpose of the mode switches
                 on the HP ThinkJet models "C", "D", and
                 "P" ?
     
     SOLUTION: Bank A contains eight mode switches which
                 allow you to configure the default
                 conditions for most computer systems and
                 applications. Bank B (HP ThinkJet model
                 "D" only) contains five mode switches that
                 control the RS-232 protocol. These
                 switches determine parity, word length,
                 and baud rate. A detailed explanation for
                 each of the mode select switches are
                 described below:
 
BANK A - FOR HP THINKJET "C", "D", AND "P"
 
# NAME UP DOWN
1 Carriage Return Carriage Return & Carriage
   (CR) Line Feed Return Only
2 Line Feed Carriage Return & Line Feed Only
                     Line Feed
3 Perforation Skip 1 inch Perforation No Perforation
   Mode Skip Skip
4 Page Length 12 inches (304.8mm) 11 inches
                                           (279.4mm)
5 Control Sequence Alternate Mode (Epson HP Mode
   Mode MX 80 or MX 100)
6 Character Set See Table Below
7 Character Set See Table Below
8 Character Set See Table Below
  
  CHARACTER SET
# 6 # 7 # 8 CHARACTER SET
Down Down Down Roman 8
Up Down Down United States ASCII
Down Up Down Swedish
Up Up Down IBM 8
Down Down Up French
Up Down Up German
Down Up Up United Kingdom
Up Up Up Spanish
 

*** Following not applicable to "P" ***
 
BANK B - FOR THINKJET "D" ONLY
# NAME UP DOWN
1 Handshake Mode Data Terminal Ready XON/XOFF
                    (DTR) (DC1/DC3)
                                          handshaking with
                                          PC
2 Parity & Data See Table B1
    Bits
3 Parity & Data See Table B1
    Bits
4 Baud Rate See Table B2
5 Baud Rate See Table B2
  
  TABLE B1 (PARITY & DATA BITS)
SWITCH SETTINGS PARITY WORD LENGTH
                                         
2 3
Down Down None 8 [or Zero & 7]
Down Up Odd 7
Up Down Even 7
Up Up ONEs 7
  
  TABLE B2 (BAUD RATE)
SWITCH SETTINGS BAUD RATE
                                   
4 5
Down Down 9600
Down Up 19200
Up Down 2400
Up Up 1200
 
 
 
Received on Thu Apr 16 1998 - 23:20:35 BST