Apple ImageWriter II/L
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| This device is in the WorkNeeded:General category because it was flagged as missing general information about the device. The information may be incomplete, using default text, or inaccurate and should be verified with external sources if possible. If you can add or correct information on this page, please feel free to edit it and do so. | 
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Apple ImageWriter II/L
| Preliminary Information | |
|---|---|
| Release Year | 1990 |
| Leak Risk | High |
| Mounting Technology | Through Hole, SMD |
| Capacitor Types | Aluminum Electrolytic, Tantalum, Ceramic, Polymer |
| Destructive Entry | No |
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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.
Original Parts
Logic Board
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C1 | 680 µF | 10V | Through Hole Radial | 85 °C | Aluminum Electrolytic | Maron | CE-DS | ||||
| C2 | 680 µF | 10V | Through Hole Radial | 85 °C | Aluminum Electrolytic | Maron | CE-DS | ||||
| C3 | 220 µF | 35V | Through Hole Radial | 85 °C | Aluminum Electrolytic | Maron | CE-DS | ||||
| C4 | 100 µF | 35V | Through Hole Radial | 85 °C | Aluminum Electrolytic | Maron | CE-GS | ||||
| C5 | 100 µF | 10V | Through Hole Radial | 85 °C | Aluminum Electrolytic | Maron | CE-SS | ||||
| C6 | 1 µF | 50V | Through Hole Radial | 85 °C | Aluminum Electrolytic | Maron | CE-SS | ||||
| C7 | 680 µF | 10V | Through Hole Radial | 85 °C | Aluminum Electrolytic | Maron | CE-DS | ||||
| C8 | 680 µF | 10V | Through Hole Radial | 85 °C | Aluminum Electrolytic | Maron | CE-DS | ||||
| C30 | 100 µF | 10V | Through Hole Radial | 85 °C | Aluminum Electrolytic | Maron | CE-SS | ||||
| C31 | 0.33 µF | 50V | Through Hole Radial | 85 °C | Aluminum Electrolytic | Maron | CE-SS |
Power Supply
Power supply has three voltage rails:
- +5VDC - primary logic rail
- -5VDC - used for RS-422 serial
- +26VDC - used for driving stepper motors
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C5 | 560 µF | 200 WV | Through Hole Radial | 30 mm | 30 mm | 10 mm | 105 °C | Electrolytic | Nichicon | GK(m) | |
| C7 | 10 µF | 250 V | Through Hole Radial | 10 mm | 16 mm | 5 mm | 105 °C | Aluminum Electrolytic | Nichicon | PR(m) | |
| C16 | 6800 µF | 10 V | Through Hole Radial | 16 mm | 26 mm | 7 mm | 85 °C | Aluminum Electrolytic | Nichicon | VX(m) | |
| C18 | 470 µF | 10 V | Through Hole Radial | 10 mm | 15 mm | 7 mm | 85 °C | Aluminum Electrolytic | Nichicon | VZ(m) | |
| C19 | 47 µF | 25 V | Through Hole Radial | 5 mm | 15 mm | 7 mm | 85 °C | Aluminum Electrolytic | Nichicon | VZ(m) | |
| C20 | 100 µF | 16 V | Through Hole Radial | 5 mm | 15 mm | 7 mm | 85 °C | Aluminum Electrolytic | Nichicon | VZ(m) | |
| C22 | 2200 µF | 40 V | Through Hole Radial | 16 mm | 32 mm | 7 mm | 105 °C | Aluminum Electrolytic | Nichicon | VZ(m) | |
| C23 | 2200 µF | 40 V | Through Hole Radial | 16 mm | 32 mm | 7 mm | 105 °C | Aluminum Electrolytic | Nichicon | VZ(m) |
Power Supply Connector Pinout
- Ground
- +5VDC
- -5VDC
- Ground
- +26VDC
Replacement Parts
Basic PCB Name
| RefDes | Qty | Compatible Part Number | Order Links |
|---|---|---|---|
| Digikey |
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.