OKIDATA DOC-IT3000, Руководство по обслуживанию

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- LSYNC period set circuit
- The LSYNC period set circuit sets the time of one LSYNC period corresponding to one
line.
- The time of the LSYNC period is usually set when the power of the Doc-It Engine is
turned on and when the vertical resolution setting and print speed setting are altered.
- Setting range: 1.085 us to 4.44 ms
(1 step = 1.085 us)
LED HEAD VERTICAL RESOLUTION PRINT SPEED LYNC period
300 dpi HEAD 300 8PPM 1.67 ms
400 dpi HEAD 300 8PPM 1.67 ms
400 8PPM 1.25 ms
- Dot pulse counter
The dot pulse counter sets the number of dots that are sent to one line of an LED head. It
is also used to set the write amount in the main scanning direction. The write amount is
usually set when the power of the Doc-It Engine is turned on.
Set register
I/O address
Setting range: 0 to 4096 dots
Set value:
1) 300 dpi LED head: 2560 dots
2) 400 dpi LED head: 3456 dots
- Motor phase selection register
- The motor phase selection register sets the rotation speed during constant-speed
rotation of the drum motor and register motor.
- The rotation speed is usually set when the power of the Doc-It Engine is turned on and
when the print speed setting is altered.
- Setting range: 1.085 us to 404 ms
- Set value: 8ppm: 0.83 ms (768 counts)
- Interval timer
- The interval timer sets the time value used in an interval timer register.
- Setting range: 34.7 us to 35.6 ms
(1 step: 34.7 us)
- The Doc-It Engine uses the interval timer as a register motors interval timer. The interval
timer is used to turn the motor drive off before and after the phase
selection because a counter-electromotive force is generated when the phase
of the register motor is selected.