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Service Guide for PM4410
Chapter 2 Operation
2.1.10 Space motor control
(1) The Main LSI generates the SPDV-P signal upon receiving the spacing command from the MPU. This is a fixed cycle
pulse signal.
The Main LSI varies the pulse duty according to the speed data from the MPU to control the motor speed.
The SPFOW-P or SPREV-P signal from the Main LSI changes the current direction in the DC motor to run the motor in
the forward or reverse direction.
(2) Slit encoder
As the space motor rotates, it generates feedback pulse signals SPA-P and SPB-P. The Main LSI detects the edge
pulses from these signals and multiplies the frequency to output the S720-P signals as the normalized timing to NHDC
LSI to generate head drive timing.
Summary of Contents for Pacemark 4410
Page 44: ...Exchange BPX for any updates to this material http bpx okidata com...
Page 51: ...3 AG detector detail drawing...
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Page 57: ...Rear tractor drive l Front tractor drive l...
Page 60: ...i Close position ii Open position iii Half open position...
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Page 130: ...4 LF Motor Belt Tension 7 Auto Gap Motor Assy 8 Bail Gear Assy Backlash...
Page 131: ...9 Installing printhead...
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Page 136: ...Right Side View...
Page 137: ...Left Side View...
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Page 143: ...Page 67 Service Guide for PM4410 Chapter 5 Maintenance 28 Option Interface...
Page 150: ...Page 71 Service Guide for PM4410 Chapter 6 Maintenance 6 4 Part Layout 1 Board 2 Other...
Page 180: ...Page 99 Service Guide for PM4410 Chapter 6 Maintenance 27 MUPIS Interface Option...