
When a dot is printed, current passes through the coil, creating a magnetic field which counters
the magnetic field of the permanent magnet. The armature and pin spring forward. A dot is printed
on the paper.
When current is removed from the coil, the magnetic field of the permanent magnet attracts the
armature. The pin is retracted into the printhead.
The printhead contains a built-in thermistor (rated at 110 degrees Celsius). The thermistor
monitors the printhead temperature. If the temperature exceeds the 110 degrees Celsius,
the thermistor causes a signal to be generated on the main controller board. The printer
stops printing. A BUSY signal is sent to the host computer. Data remains in the print buffer
as long as power is supplied to the printer. When the printhead temperature drops below
the 110 degree Celsius threshold, the BUSY signal to the host computer becomes inactive.
Printing is resumed.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Содержание ML320 Turbo
Страница 37: ......
Страница 46: ...Page 30 Service Guide ML320 ML321 Chapter 2 Principles of Operation 2 4 MECHANICAL PRINCIPLES OF OPERATION...
Страница 53: ......
Страница 190: ...Partner Exchange BPX for any updates to this material http bpx okidata com...
Страница 244: ...Partner Exchange BPX for any updates to this material http bpx okidata com...