Apple ImageWriter II/L

This is a template page for creating new pages for devices, troubleshooting them, part lists, and other repair info.

Known Issues
Sagging voltage on the +26VDC rail will cause the steppers to fail to move the carriage properly, which generates an error on startup.

Disassembly Notes
The entire carriage and printer assembly removes as a single unit for access to the power supply.

Power Supply
Power supply has three voltage rails:


 * +5VDC - primary logic rail
 * -5VDC - used for RS-422 serial
 * +26VDC - used for driving stepper motors

Power Supply Connector Pinout

 * 1) Ground
 * 2) +5VDC
 * 3) -5VDC
 * 4) Ground
 * 5) +26VDC

Basic PCB Name
If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

Related Links

 * Image Writer II/L Service Manual