HP 2225P with DB15 connector pinout needed



#7

Anyone have the pinout for a Thinkjet 2225P (parallel) printer cable? It
is not a standard Centronics, it has a 15 pin D connector at the printer
(male). Thanks all.

Wilhelm Loidl


#8

A while back, I found a posting from Tony Duell that seemed promising. I haven't tried it yet... I would like to know if it works.

Quote:
... how I wired up a cable from a PC printer port (DB25) to the 2255P (DA15)

PC printer port -> HP portable thinkjet cable

PC TJ
1 -----Stb-----> 1
2 -----D0------> 2
3 -----D1------> 3
4 -----D2------> 4
5 -----D3------> 5
6 -----D4------> 6
7 -----D5------> 7
8 -----D6------> 8
9 -----D7------> 9
10 <---Ack------ 10
11 <---Busy----- 11
12 <--PE--+
24 -------+
13 <---Sel------ 12
15 <---Err------ 13
16 ----Init----> 14
19 ----Gnd ----- 15

Pins 12 and 13 may be swapped - I can't get either of them to change
state to check.

-tony



#9

I should add that I have great respect for Tony's knowledge and his many contributions; the only reason I think it may not work as-described is Tony's own lack of confidence re pins 12 & 13.


#10

Thank you for the information!

I'll try the connection and inform you as soon as possible.

Best wishes to all forum-members for 2007!

Wilhelm Loidl


#11

I can assure you that pinout works (I have used a 2225P with that cable). I can't remember what pins 12 and 13 are (some kind of error indicators?), they're not really needed for normal operation, hence my uncertainty

The diagram is how I wired my cable, but looking at it later I thought it looked more 'logical' (i.e. the pins that are used are in the same order at each end of the cable) if you swapped them round.

#12

Hello again - the working assignment:

PC -------------- TJ

1 -----Stb-----> 1

2 -----D0------> 2

3 -----D1------> 3

4 -----D2------> 4

5 -----D3------> 5

6 -----D4------> 6

7 -----D5------> 7

8 -----D6------> 8

9 -----D7------> 9

10 <---Ack------ 10

11 <---Busy----- 11

13 <---Sel------ 12

15 <---Err------ 13

16 ----Init----> 14

12,19 -- Gnd --- 15


Pin 12 from PC-side has to be grounded or the PC thinks, the printer has no paper...

Thank you all for helping me very smart and fast

Wilhelm Loidl


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