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Oki MC561 User Manual

Oki MC561
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44473001TH Rev.1
42 /
Oki Data CONFIDENTIAL
2. DESCRIPTION OF OPERATION
(6) Duplex printing system (paper flipping and returning to the paper feed route)
1. In a certain period of time after the fuser motor starts running
counterclockwise and the rear end of paper being fed passes the eject
sensor, the fuser motor starts running clockwise. (It changes from the state
shown in Figure 2-7 to the state shown in Figure 2-8.)
2. As a result of that, the eject rollers start rotating in the reverse direction, and
the paper is flipped and carried to the duplex unit.
3. W
hen the duplex unit clutch becomes on, the paper is transferred by the
duplex unit transport rollers.
4. In a certain period of time after the rear end of the paper passes the eject
rollers, the fuser motor starts running counterclockwise, and as a result of
this, the eject rollers can carry the next paper to the exit. (It changes from
the state shown in Figure 2-8 to the state shown in Figure 2-7.) (The duplex
unit transport rollers rotate in the same direction regardless of the running
direction of the motor.)
5. T
he paper that is carried by the duplex unit transport rollers comes back to
the route for paper feeding from a tray. After that, the paper is handled in
the same way as paper fed from a tray for simplex printing.
Fuser unit
Heat roller (drive)
Fuser motor (clockwise)
Eject sensor
Duplex unit transport roller
Heat roller (drive)
Eject sensor
Duplex unit clutch
Eject roller (drive)
Eject roller (drive)
Fuser unit
Fuser motor (counterclockwise)
Duplex unit transport roller
Duplex unit clutch
Figure 2-7
Figure 2-8

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Oki MC561 Specifications

Printing Specifications IconPrinting Specifications
Print SpeedUp to 27 ppm color, 31 ppm black & white
Time to First PageAs fast as 8 seconds in color, 7.5 seconds in black & white
Print ResolutionUp to 1200 x 600 dpi
Copying Specifications IconCopying Specifications
Copy SpeedUp to 27 cpm color, 31 cpm black & white
First Copy OutAs fast as 14 seconds in color, 12 seconds in black & white
Copy ResolutionUp to 600 x 600 dpi
Scanning Specifications IconScanning Specifications
Scan TypeColor and black & white flatbed
Scan ResolutionUp to 1200 x 1200 dpi
Scan SpeedApprox. 3 sec./page color, approx 2 sec./page black & white at 300 dpi
Fax Specifications IconFax Specifications
Fax Modem33.6 Kbps Super G3
Transmission Speed3 seconds/page
Fax ResolutionUp to 200 x 400 dpi
System Memory IconSystem Memory
Standard Imaging RAM256 MB
Max Imaging RAM768 MB
SD Card Storage4 GB standard; 16 GB optional
Paper Handling IconPaper Handling
Scanner RADF CapacityUp to 50 letter/legal sheets
Standard Input350 sheets (250 sheets via Main Tray + 100 sheets via MPT)
Maximum Input880 sheets (with optional 530-sheet 2nd Paper Tray)
Environmental Specifications IconEnvironmental Specifications
Size16.8" x 20" x 17.5" (42.7 cm x 50.9 cm x 44.4 cm)
Weight63 lb. (29 kg)
Power ConsumptionOperating Normal 570W; Max 1170W; Idle 100W; Power Save 20W; Deep Sleep <1.5W

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