(d) I/O port
This printer has 8-bit output port which is used for controlling the SRAM.
(e) Head position count
It counts the outputs from slit sensors (SPPHASE A, B) located on the space motor to keep monitoring the current
position of the print head.
(f) Print data modifying function
It modifies the print data stored in the DRAM with command inputs from the MPU.
(g) DMA control function
It outputs a DMA request to the MPU, simultaneously controlling the DMA.
This LSI is connected in multiplex to the MPU.
(7) NHDC LSI(IC27: TC190G08CF-7036)
This LSI controls timer, interruption, memories, printing, external interface, motor drive interface.
(a) Timer control
It controls the watchdog timer for detecting any out-of-control program, baud rate generator for setting the baud rate of
the serial interface, and pulse generation timer for AG plus count.
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...
Page 54: ......
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...
Page 134: ......
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...