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 Okidata
ML 390 
ML 390+
Features and Specs
TECHNOLOGY, SPEED, AND PRINT CHARACTERISTICS
Print Method: Impact, dot matrix
Printhead: 24-pin (.20 mm diameter)
Graphics Resolution: 60 x 60 dpi minimum
360 x 360 dpi maximum
Print Speed and Pitch, LQ, Utility
Character Matrix:
12 CPI 90 CPS, 270 CPS,
30x18 9x17
10 CPI 75 CPS, 225 CPS,
30x18 9x17
Maximum Characters Per Line
Characters Per Line: CPI ML-390 ML-391
10 80 136
12 96 163
15 120 204
17 137 233
20 160 272
PROP -- --
Line Spacing: 1/6, 1/8, n/60, n/180, n/216, n/360
inch
Character Sets: IBM Set I, II, IBM All Character Set
Epson Set I, Set II
Standard ASCII
14 Foreign Character Sets
Print Attributes: Italics, Emphasized, Enhanced,
Underline, Sub- and Superscript,
Double High and Wide, Overscore
FONTS AND FONT CARDS
Resident Typestyles:
LQ Courier, Proportional Courier
Utility Gothic
Down Line Loaded: 96 characters (Epson compatible)
Optional Cards: Front panel insertion, selection from
front panel or software
PAPER HANDLING
Paper Input: ML-390 ML-391
Cut Sheet (Width) 7.2" to 8.5" 7.2" to 14.3"
(Weight) 12 to 24 lb. max. 12 to 24 lb. max.
Envelopes (Weight) 24 lb. max. 24 lb. max.
Continuous (Width) 3" to 10" 3" to 16"
(Weight) 12 to 24 lb. 12 to 24 lb.
(Thickness) .014" max. .014" max.
Standard Tractor: Push with paper park feature
Paper Path: Rear, bottom (w/pull tractor), top
Line Feed Time: 80 ms at 6 lpi
Slew Rate: 3.75 ips
INTERFACE, EMULATIONS AND MEMORY
Standard Interface: Centronics-compatible parallel
Optional: RS-232C serial, 300 to 19.2K baud
Emulation: Co-resident Epson LQ and IBM X24 Series
Memory: 23K standard for buffer or DLL character
storage
RELIABILITY, AND ENVIRONMENTAL
MTBF 5,000 hours
MTTR 15 minutes
Printhead Life: 200,000,000 characters (user replaceable)
Size:
MICROLINE 390 15.7" (w) x 13.6" (d) x 4.6" (h)
MICROLINE 391 21.7" (w) X 13.6" (d) X 4.6" (h)
Net Weight:
MICROLINE 390 18.5 lbs. (UPS Shippable)
MICROLINE 391 22.3 lbs. (UPS Shippable)
Electrical: 120 VAC + 5% -15%
220 VAC + 5% -15% (special order)
50/60 Hz +/- 2%
Operating
Temperature: 40 to 104F DEG.
10 to 95% Rel. Humidity
Safety: UL: UL114/UL478 CSA: C22.2 (220)
FCC: Class B
Noise: LQ Utility
56 dBA 57 dBA
(max.) (max.)
ACCESSORIES AND OPTIONS
Pull Tractor Kit: Use for continuous forms and push/pull
operation. Includes acoustic cover. Specify
390 or 391.
Cut Sheet Feeder
(CSF 3000): For both 390 and 391. 170 (16 lb.) or 100
(24 lb.) sheet capacity. Paper width: 7.2"
to 8.5". Length: 10.1" to 14".
Paper weight: 16 to 24 lbs.
Serial RS232-C
Interface: User installable. 300 to 19.2 K baud. Set
up from printer menu.
Font Cards: 10, 12, 15, 17, and 20 cpi LQ fonts in
Letter Gothic or Prestige Elite.
Self-Inking Ribbon
Cartridge: Designed specifically for 24-pin printers.
3,000,000 characters nominal life in utility.
MICROLINE Control: Memory-resident daisywheel and 9-pin dot-
matrix printer emulation program for IBM
PC/XT/AT and compatibles.
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