【Oki Electric Industry】 OP4w/ML4w

The OP4w and ML4w were ultra-compact printers for Windows that printed four pages per minute. Adopting a print process that enabled toner recycling, the printers used a compact photosensitive drum to fit into 191 x 310 millimeter (w x d) footprint that was smaller than an A4 sheet. They were also designed for comfortable desktop use.

Model name Microline 4w
Print process Electrophotography process using an LED array
Print speed 4 ppm
Print media A4, A5, A6, B5, custom, letter, legal, envelopes, executive, postcards, reply postcards
Resolution 300 x 300 dpi / 300 x 1200 dpi (600 dpi equivalent)
Interface IEEE 1284-1994 parallel interface, Macintosh interface (RS422A)
Input power supply 100 VAC ± 10% (50/60 Hz ± 1%)
Power consumption In operation Rated 450 W, average printing power ~100 W
Idling Average idling power ~30 W, power-save mode ~5 W
Operating noise level Printing: 48 dB (A) or less, idling: 38 dB (A) or less
Weight 〜3.8kg
External dimensions (w x d x h) 191×310×150 mm