2.1 Print Engine Control
2.1.4 Fusing Heater Control
Figure 2–5 shows how the fusing temperature varies after power and during
printing and standby operations.
Figure 2–7 shows the circuitry that controls the fusing temperature. The
surface temperature of the upper fusing unit roller is measured by thermistor
(TH1) and adjusted by the DC control board.
The fusing temperature sets the resistance of TH1, establishing the voltage
level for the analog
F SRT H
signal. The resistance of TH1 decreases as the
fusing temperature increases. The following TH1 resistance readings are
measurable across pins 1 and 2 of the fusing unit connector (J743):
•
Room temperature resistance of TH1 is approximately 239K
.
•
Operating temperature resistance of TH1 is less than 2.0K
.
Figure 2–5 Fusing Temperature Chart
Technical Description 2–9
Содержание DEClaser 5100
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Страница 36: ...1 8 Resolution Graphics Enhancements Option Board DSG 000172 Notes 1 22 Physical and Functional Description ...
Страница 61: ...2 5 HVPSA Figure 2 12 EP ED Cartridge DSG 000612 2 1 3 4 5 6 7 Technical Description 2 25 ...
Страница 62: ...2 5 HVPSA DSG 000172 Notes 2 26 Technical Description ...
Страница 70: ...3 2 Control Panel Operation DSG 000172 Notes 3 8 Operating the Control Panel ...
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Страница 124: ...7 5 Phantom Jams DSG 000172 Notes 7 8 FIPs for Fixing Paper Jams ...
Страница 142: ...9 3 Assembly Gear 3 Remove the gear assembly through the rear of the printer DSG 000639 9 6 Removing and Replacing FRUs ...
Страница 152: ...9 7 Assembly Paper Delivery 3 Press and release the two clips DS G 0 006 46 1 9 16 Removing and Replacing FRUs ...
Страница 167: ...9 12 Board DC Control 1 2 4 5 7 8 9 6 3 10 DSG 000657 Removing and Replacing FRUs 9 31 ...
Страница 205: ...9 26 Guide HVPSA Contact Plate b Remove the HVPSA contact plate DS G 0 00 68 5 Removing and Replacing FRUs 9 69 ...
Страница 224: ...10 1 Field Replaceable Units DSG 000172 Notes 10 4 FRU Part Numbers ...
Страница 254: ...B 4 Connecting to OpenVMS VAX or ULTRIX Systems DSG 000172 Notes B 10 General Information ...
Страница 264: ...D 3 Tools DSG 000172 Notes D 4 Training Documentation and Tools ...
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