This pulse motor of 48 steps/rotation is two-phase excited by the signal from the main control board; it performs
feeding control by switching normal rotation to reverse rotation or vice versa and turning on/off the electromagnetic
clutch. The relationship between the main motor, electromagnetic clutch, registration gear, drum gear, hopping roller
is shown in the table below and on the subsequent sections of this chapter.
Main Motor
Electromagnetic
Clutch
Hopping Roller
Regist Gear
Drum Gear
Operation
Normal rotation
OFF
Non-rotation
Non-rotation
Rotation
Warm-up
ON
Rotation
Rotation
Rotation
Hopping
Reverse rotation
OFF
Non-rotation
Rotation
Rotation
Printing
(4) LED head
The shift and latch registers receive image data from the main control board for each dot line. 2,560 or 2,496 LEDs
are driven to radiate the image drum.
(5) Heat Assembly
The heat assembly consists of a heater, a heat roller, a thermistor, and a thermostat.
The power supply unit supplies AC voltage to the heater according to the HEATON signal from the main control
board to heat the heat roller. The main control board monitors the heat roller temperature via the thermistor and
keeps the temperature constant by turning on/off the heater AC voltage supply.
If the heat roller temperature rises abnormally, the thermostat of the heater voltage supply circuit functions to forcibly
suspend the AC voltage supply.
Copyright 1998, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner
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Summary of Contents for OKIOFFICE 84
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Page 53: ... Example 2 of 3 Example 3 of 3 ...
Page 55: ...Page 34 Service Guide OKIOFFICE 84 Chapter 1 General Information Configuration Report User ...
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Page 64: ...Note ...
Page 67: ...Figure 2 3 Unpacking Procedure 2 ...
Page 80: ...Page 46 Service Guide OKIOFFICE 84 Chapter 2 Installation Key Operation Flowchart ...
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Page 101: ...Page 56 Service Guide OKIOFFICE 84 Chapter 2 Installation TEL FAX Mode Flow Chart ...
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Page 150: ...Page 83 Service Guide OKIOFFICE 84 Chapter 2 Installation Table 2 9 5 1 3 User s Functions ...
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Page 168: ...Page 91 Service Guide OKIOFFICE 84 Chapter 2 Installation 2 9 7 Dual Access Operation ...
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Page 172: ...Note Use the UNIQUE key to input special symbols ...
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Page 182: ...Page 98 Service Guide OKIOFFICE 84 Chapter 2 Installation Self Diagnosis Print Test Example ...
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Page 254: ...Note DRUM T will be used to know the total in use life of the machine ...
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Page 288: ...Page 164 Service Guide OKIOFFICE 84 Chapter 7 Troubleshooting 7 2 No LCD Operation ...
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Page 294: ...Page 167 Service Guide OKIOFFICE 84 Chapter 7 Troubleshooting 7 5 No Local Copy ...
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Page 297: ...Page 168 Service Guide OKIOFFICE 84 Chapter 7 Troubleshooting 7 6 Auto Dial Failure ...
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Page 302: ...Page 170 Service Guide OKIOFFICE 84 Chapter 7 Troubleshooting 7 8 Auto Reception Failure ...
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Page 308: ...Page 173 Service Guide OKIOFFICE 84 Chapter 7 Troubleshooting 7 11 LED Test ...
Page 311: ...Page 175 Service Guide OKIOFFICE 84 Chapter 7 Troubleshooting 7 13 High Speed Modem Test ...
Page 313: ...Page 176 Service Guide OKIOFFICE 84 Chapter 7 Troubleshooting 7 14 MF Send Test ...
Page 315: ...Page 177 Service Guide OKIOFFICE 84 Chapter 7 Troubleshooting 7 15 Tone TEL FAX Send Test ...
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Page 339: ...Page 192 Service Guide OKIOFFICE 84 Chapter 7 Troubleshooting 5 Paper Jams ...
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Page 453: ...Page 269 Service Guide OKIOFFICE 84 Chapter C Illustrated Parts List Illustrated Parts List ...
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Page 479: ...Page 283 Service Guide OKIOFFICE 84 Chapter C Illustrated Parts List Section 12 Cables ...
Page 480: ...Rev No OKIDATA P N Description Q ty Remarks 1 40635401 Connection Cord Wire AC 1 ...