1 SIMM socket.  Ships with 2MB soldered on the motherboard, and a 1MB SIMM.

Page Description Language / Emulation:
PostScript Level 2 / HP PCL 4 (emulates HP LaserJet IIP).

Print Engine:
Canon LBP-LX laser-xerographic

Speed:
4 pages per minute maximum.  Actual speed depends on image complexity.

Print Quality:
300 dots per inch.

Fonts: ?

Imageable Area:
Minimum top and bottom margins: .235 inches (6.0 mm)
Minimum left and right margins: .197 inch (5.0 mm)
The actual printable area may vary depending on the application and the amount of RAM installed.

Interfaces:
RS-422/423 8-pin circular mini DIN.
RS-232C 25-pin 'D' shell connector.
Centronics 36-pin (parallel).

Recommended Duty Cycle:
Printer: Minimum 150,000 pages, with no monthly page limit (equivalent to 200 pages/day, 5 days/week for 5+ years).
Toner:

Paper Feed:
Manual or automatic with the multipurpose tray (70 sheets or 7 envelopes).
Optional 250-sheet automatic feed paper cassette

Supports:
Paper: U.S. letter, U.S. legal, A4, B5 cassettes - each cassette holds 250 sheets of 20 (75g/m2) lb paper.
Envelopes: Envelope cassette holds 15 envelopes.  Use envelopes between the following sizes: - minimum 3.8 x 7.25 inch (96 x 184 mm), - maximum 7.4 x 10 inch (188 x 255 mm).

Media
Apple recommends 20-lb photocopy or typewriter bond in normal mode.  You can use 16-lb to 28-lb paper.  Accepts medium weight photocopier transparencies.  Envelopes can be fed through the multi-purpose tray or from the optional envelope cassette.

Power Requirements:
U.S./Japan: 90 to 110 volts AC, 48-52Hz, 58-62 Hz.
Europe/Australia: 220 to 240 volts AC, 48-52 Hertz.

Power Consumption:
Operating:
  600 watts maximum at 115 volts.
  550 watts maximum at 220 volts.