ImageWriter Family & Scribe: Connecting To An IBM PC, PS/2, AT&T

What are the cable and printer configurations that will interface an IBM PC, PS/2, AT&T 6300 or other IBM compatible to an ImageWriter I, ImageWriter 15", ImageWriter II, LQ or Scribe printer.
Cabling pinouts for a custom cable:
IBM PC
(use female DB-25)
ImageWriter II or ImageWriter LQ
(use circular 8 connector)
5,6 (CTS, DSR)
1 (DTR)
20 (DTR)
2 (DSR)
3 (RxD-)
3 (TxD-)
7 (SG)
4,8 (SG, RxD+)
2 (TxD-)
5 (RxD-)
IBM PC
(use female DB-25)
ImageWriter/15"/Scribe
(use male DB-25)
3 (RxD-)
2 (TxD-)
2 (TxD-)
3 (RxD-)
5 (CTS)
4 (RTS)
7 (SG)
7 (SG)
6 (DSR)
20 (DTR)

Reference: RS232 Signal (DB-25 DTE)
1
Sig Gnd
Normally Shield or Chassis Ground
2
TXD
Transmit Data
3
RXD
Receive Data
4
RTS
Request to Send
5
CTS
Clear to Send
6
DSR
Data Set
7
GND
SIGNAL Ground
8
DCD
Data Carrier Detect
20
DTR
Data Terminal Ready
22
RI
Ring Indicate

Set printer switches to the following settings for this configuration:

- U.S. Character set
- 66 lines per page
- 8 data bits (1 stop bit, no parity)
- pica character pitch
- no LF after CR
- 9600 Baud
- Data Terminal Ready Protocol


ImageWriter I Switch Settings:

Switch 1
Position
1
2
3
4
5
6
7
8
Closed (On)
-
-
-
-
-
-
-
-
Open (Off)
X
x
x
x
X
x
x
x

Switch 2
Position
1
2
3
4
Closed (On)
x
x
-
Open (Off)
-
-
X

ImageWriter II Switch Settings:

Switch 1
Position
1
2
3
4
5
6
7
8
Closed (On)
-
-
-
-
-
-
-
-
Open (Off)
X
x
x
x
X
x
x
x

Switch 2
Position
1
2
3
4
5*
6*
Closed (On)
X
x
-
-
Open (Off)
-
-
X
X

* NOTE: DO NOT CHANGE SWITCH 5 AND 6.


ImageWriter LQ Switch Settings:

Switch1
Position
1
2
3
4
5
6
7
8
Closed (On)
-
-
-
-
-
-
-
-
Open (Off)
X
x
x
x
X
x
x
x

Switch2
Position
1
2
3
4
5
6
7
8
Closed (On)
X
x
-
-
-
-
-
-
Open (Off)
-
-
X
X
X
x
X
x

Switch 3: DO NOT TOUCH!


Finally, configure the serial port of the computer to match the printer configurations as above and assign the port to LPT1 by running this autoexec program:

mode COM1:96,N,8,1,P
mode LPT1:=com1

Software Drivers

These Apple printers were designed for use with Apple II and Macintosh computers, and contain many useful design features accessible only by those systems. Some of the printers have some similarity in design with printers that were designed, tested, and sold for PC users. Therefore, there is a remote possibility that PC drivers may control some of the functions on these printers. We have no knowledge which drivers may or may not work. If you wish to pursue this, some starting points:
Printer
PC Driver
ImageWriter IIEpson FX or similar driver
StyleWriterCanon BJ-20
StyleWriter IICanon BJ-200 (possibly also the BJ-200e)
Color StyleWriter (early models)Canon Color BJ-600
Published Date: Feb 18, 2012