Diagnostic Information
2-57
4520-xxx
2
Fuser Lamp
Fuser Top Cover Assembly
Remove the controller board. Run
the Diagnostic Print Test and
observe the lamp through the left
side frame. If the lamp does not
come on, do the following:
• Remove the redrive assembly.
• Remove the fuser assembly,
disconnect the LVPS to fuser AC
cable from the fuser assembly and
remove the fuser.
• Verify that the lamp is installed
correctly. If correct, check the
continuity of the fuser top cover
assembly by verifying the lamp
contacts on the right contact
assembly. If incorrect, check
continuity of the fuser lamp. If
incorrect replace the lamp. If
correct replace the fuser top cover
assembly.
3
LVPS
LVPS to Fuser AC Cable
Caution: When taking
measurements for AC power,
observe all safety precautions.
Measure the AC line voltage
between the two connectors on the
fuser end of the LVPS to fuser AC
cable. If the voltage is incorrect, turn
the power off, and remove the LVPS.
Measure the AC line voltage
between pins CN1-1 and CN1-3 on
the board. If correct, check the
continuity of the LVPS to fuser AC
cable. If incorrect, replace the cable.
If the AC line voltage at CN1 is
incorrect, check fuse F2. If the fuse
is blown, replace the fuse. If the fuse
is not blown, replace the LVPS
assembly.
4
Fuser Top Cover Assembly
(Thermal Fuse/Thermistor
Assembly)
Disconnect the thermistor cable from
the fuser board at J2. Resistance:
• HOT J2-1 - J2-2 = 2.5K ohms
• COLD 150K ohms to 260K ohms
FRU
Action
Содержание T52 Series
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Страница 204: ...4 42 Service Manual 4520 xxx 6 Disconnect the interconnect card cable from the LVPS C 7 Remove the LVPS ...
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Страница 246: ...7 2 Service Manual 4520 xxx Assembly 1 Covers ...
Страница 248: ...7 4 Service Manual 4520 xxx Assembly 2 Frame ...
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Страница 252: ...7 8 Service Manual 4520 xxx Assembly 3 Printhead ...
Страница 254: ...7 10 Service Manual 4520 xxx Assembly 4 Paper Feed Autocompensator ...
Страница 256: ...7 12 Service Manual 4520 xxx Assembly 5 Paper Feed Multipurpose Unit ...
Страница 258: ...7 14 Service Manual 4520 xxx Assembly 6 Paper Feed Alignment ...
Страница 260: ...7 16 Service Manual 4520 xxx Assembly 7 Paper Feed Output ...
Страница 262: ...7 18 Service Manual 4520 xxx Assembly 8 Integrated Paper Tray 500 Sheet ...
Страница 264: ...7 20 Service Manual 4520 xxx Assembly 9 Main Drive ...
Страница 266: ...7 22 Service Manual 4520 xxx Assembly 10 Developer Drive ...
Страница 268: ...7 24 Service Manual 4520 xxx Assembly 11 Hot Roll Fuser ...
Страница 270: ...7 26 Service Manual 4520 xxx Assembly 12 Transfer ...
Страница 272: ...7 28 Service Manual 4520 xxx Assembly 13 Charging ...
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Страница 278: ...7 34 Service Manual 4520 xxx Assembly 15 Electronics II ...
Страница 280: ...7 36 Service Manual 4520 xxx Assembly 16 Electronics III ...
Страница 282: ...7 38 Service Manual 4520 xxx Assembly 17 Electronics IV ...
Страница 284: ...7 40 Service Manual 4520 xxx Assembly 18 Electronics V ...
Страница 286: ...7 42 Service Manual 4520 xxx Assembly 19 Electronics VI ...
Страница 288: ...7 44 Service Manual 4520 xxx Assembly 20 250 Sheet Tray ...
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Страница 292: ...7 48 Service Manual 4520 xxx Assembly 21 Integrated Paper Tray 250 Sheet ...
Страница 294: ...7 50 Service Manual 4520 xxx Assembly 22 500 Sheet Tray ...
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Страница 298: ...7 54 Service Manual 4520 xxx Assembly 23 Duplex Unit ...
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Страница 302: ...7 58 Service Manual 4520 xxx Assembly 23 Duplex Unit continued ...
Страница 304: ...7 60 Service Manual 4520 xxx Assembly 24 Envelope Feeder ...
Страница 306: ...7 62 Service Manual 4520 xxx Assembly 25 High Capacity Feeder ...
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Страница 310: ...7 66 Service Manual 4520 xxx Assembly 25 High Capacity Feeder continued ...
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Страница 316: ...7 72 Service Manual 4520 xxx Assembly 26 Kiosk Vertical Paper Adapter ...
Страница 318: ...7 74 Service Manual 4520 xxx Assembly 27 Kiosk Horizontal Paper Adapter ...
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