Here is a link  that contains useful information about the Image-Writer.

Here is an extract from that link about the dip switches.

====

"Imagewriter II printing setup and tests
It is important to set the printer's "switch settings" correctly for proper 
operation of the printer. If you remove the top cover to expose the print head 
area and (with the power off) gently move the print head mechanism to the right 
(with the front of the printer closest to you), you will see on the left a set 
of DIP switches. One of those switches must be set to enable or disable the 
Appletalk feature. If you have set up your Macintosh to operate the printer 
WITHOUT appletalk, and Appletalk is enabled, or if your Mac expects Appletalk 
and the printer's Appletalk option is DISABLED, you will not get correct 
printing: the printer will print garbage and the head will move in large jumps, 
and so on. 

Appendix C of the Imagewriter II manual describes these switch settings: only 
one switch is changed between Appletalk and non-Appletalk mode. Or, you can use 
Chooser in your System Folder to turn Appletalk on or off (provided there is no 
other Appletalk device on your serial port) to see if that makes a difference. 
The Appletalk option (or the 32K memory buffer option) is a small, long circuit 
board that is installed underneath the front cover of the printer, the cover 
that also contains the power and other buttons on the front right of the 
printer.

The switch settings should be as follows:

_____SW 1____________SW 2____
O O O O O C O O | C C O ? X X

    •    O means "open", the switch top is toward the back of the printer.
    •    C means "closed", the switch top is toward the front of the printer.
    •    X means DO NOT TOUCH these settings.
    •    ? is for the options switch - Appletalk
    •    O means open, DISABLE Appletalk
    •    C means closed, ENABLE Appletalk

=====

Mel

--- On Mon, 1/11/10, Elliott Price <[email protected]> wrote:

From: Elliott Price <[email protected]>
Subject: Re: ImageWriter... and fighting with Chooser
To: [email protected]
Date: Monday, January 11, 2010, 12:54 PM

Clark is right; The cable has "modem" written on it in sharpie. I didn't 
realize that the cables are different... Thanks.
It might have been used with a IIgs... It does have dip switches, but they're 
covered by a sticker. It doesn't look like they've ever been touched, so 
they're probably set to the factory default, whatever that was. 


    -Elliott Price
Mac Computer Repair - Santa Barbara
Graphic Design - Artwork Setup
Websites - Low Cost Custom Websites


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