Oki OF5700, Service Manual

Page: 12 / 706

a) Horizontal
300 dots per inch (Note: 600 dpi x 15.4 mm; copy is available)
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b) Vertical
300 dots per inch, 15.4, 7.7 and 3.85 lines per mm (Note: 300 dpi x 300 dpi; Transmission
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is available.
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Scanning method
2592 bits contact image sensor
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Recording resolution)
a) Horizontal: 600 dots/inch
b) Vertical:
Variable:
STD mode (A4: 3.85 to 5.06 line/mm) (Letter: 3.85 to 5.28)
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FINE mode (A4: 7.7 to 9.3 line/mm) (Letter: 7.7 to 10.57)
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EX-FINE mode : (A4: 15.4 line/mm) (A4 15.4 to 19.87 line/mm) (Letter: 15.4 to 21.15)
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EX-FINE (300 dot/inch): (A4: 300 to 387 mm/line) (Letter: 300 to 412)
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Fixed:
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EX-FINE mode : 300 dot/inch, 15.4 line/mm
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FINE mode: 7.7 line/mm
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STD mode: 3.85 line/mm
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PC-Print: 600 dot/inch, 300 dot/inch
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Printing method
Electrophotographic printing
211.3 mm (2496 bits) LED printhead
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Minimum scan line time for reception
When receiving from OKIFAX or ECM: 0 ms
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When receiving from non- OKIFAX and non ECM: 10 ms at 3.85 line/mm; 5 ms at 7.7
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line/mm, 15.4 line/mm
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Print speed
Max. 10 sheets per minute (at NA letter size)
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Coding scheme
Modified Huffman (MH)
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Modified READ (MR)
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Modified Modified READ (MMR)
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JBIG (only for OKIFAX 5900)
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Modem (Rev. 2)
ITU-T Rec. V.29: 9600 bps for use on point-to-point 4-wire leased telephone type circuits.
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ITU-T Rec. V.27 ter: 4800 bps modem for use in GSTN (General Switched Telephone
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Network)
ITU-T Rec. V.21 channel 2: 300 bps duplex modem for GSTN
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ITU-T Rec. V.17: 2-wire modem for fax applications up to 14.4 kbps
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ITU-T Rec. V.34
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Transmission speed
2.5 sec. per sheet of ITU-T No. 1 evaluation test chart (for OKIFAX 5900)
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3.0 sec. per sheet of ITU-T No. 1 evaluation test chart (for OKIFAX 5700)
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Note:
This is Phase C time at 3.85 line/mm.
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Protocol
ITU-T Rec. T.30
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ITU-T Rec. G4 Class 1 (option)
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OKI special protocols: High-speed protocol (G3)
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Error correction mode (ECM)
ITU-T ECM
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Image memory
Basic mode: 2.5 M-byte (OKIFAX 5700) & 4.5 M-byte (OKIFAX 5900)
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Optional memory: 2.0/4.0 M-byte
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Liquid crystal display (LCD)
Four lines of 20 characters for operation guidance, check and various kinds of information
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Power source