%2.1.05 Printhead Drive Circuit
2.1.05 Printhead Drive Circuit
This circuit is used to drive the 24 print wires.
The signals HD1 through HD24 control the individual print wires. The HD ON signal (even/odd trigger)
enables the drive circuit when printing is desired.
The head drive duration is determined by an RC integrating circuit, which modifies the HD ON pulse
width. The pulse width of the HD ON signal varies with the number of pins being driven.
Printhead Drive Time
The drive time
increases as more pins are driven.
The drive time
decreases as less pins are driven.
The drive time also increases if the head gap lever is placed in positions 4 through 9.
An RC circuit also is used to compensate for the fluctuation of drive voltage (+38 vdc).2-1-04B.pcx
ML395 ( 96-02-03 )
Summary of Contents for Microline 395
Page 1: ...Chapter 0 Front Cover ML395 96 02 03...
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Page 31: ...Since the switch is turned ON paper is detected ML395 96 02 03...
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Page 87: ...Sample Menu Sample Menu ML395 96 02 03...
Page 90: ...Busy Time 200 mS 1 sec ML395 96 02 03...
Page 98: ...Lubrication Points Monochrome and Color Lubrication Points Monochrome and Color ML395 96 02 03...
Page 101: ...Lubrication Points Color Lubrication Points Color ML395 96 02 03...
Page 102: ...Lubrication Points Options Lubrication Points Options ML395 96 02 03...
Page 116: ...4 7 02 RAP Index 4 7 02 RAP Index ML395 96 02 03...
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Page 153: ...3 50215801 1PA4094 5841G1 Cover Rear Assembly RSPL 3 2 04 ML395 96 02 03...