LaserWriter 4/600 PS (1995)
A PostScript Level 2 laser printer documented by Apple in June 1995: 600 dpi, about 4 A4 pages per minute and LocalTalk.

© All About Apple museum / www.allaboutapple.com; individual photographer not named · CC BY-SA 2.5 Italy ↗ Resized, no crop or retouching.
LaserWriter 4/600 PS. Photo: All About Apple museum, via Wikimedia Commons. CC BY-SA 2.5 Italy. Original file unchanged; not a launch photograph.
Specs
| Documented resolution | 600 dpi |
| Documented speed | 4 pages/min · maximum |
| Language | PostScript Level 2 |
| Connections | LocalTalk |
| Documented memory | 2 MB - 6 MB |
| Width | 15.2 in |
| Height | 6.3 in |
| Depth | 14.9 in |
| Weight | 15.4 lb · without cartridge |
| Documented power | 450 W · maximum |
| Sheet voltage | 100-115 V |
| Sheet frequency | 50-60 Hz |
Compact 600 dpi printing
Apple's Service Source dates the LaserWriter 4/600 PS to June 1995 and covers it in the same manual as the Personal LaserWriter 300 and 320. They are not the same model: the 4/600 PS uses PostScript Level 2 and 600 dpi resolution. This is a documented date, not proof of a first-sale day.
Engine and memory
It has an AMD 29200 RISC processor, 2 MB RAM expandable to 6 MB and a Canon P90 engine. The manual gives approximately 4 A4 pages per minute and notes that performance depends on the images and computer. Maximum memory expansion is not treated as equipment installed in every unit.
LocalTalk and photograph
The physical interface is LocalTalk. The manual mentions EtherTalk and TokenTalk connectivity through LaserWriter Bridge 2.0, not built-in Ethernet or Token Ring ports. The original All About Apple photo is identified as a 4/600 PS and remains unretouched; it does not establish installed memory or working condition.
Physical and electrical record
Apple's archived technical sheet records 6.3 in high, 15.2 in wide and 14.9 in deep, and 15.4 lb. These are documentary values, not measurements of a used unit. The electrical figures belong to the sheet and its market, not every mains version or idle draw.