Diagnostic Information
21
4039-1XX
If the thermal fuse has blown, the fuser and the fuser wiper will be
damaged. Before replacing the fuser and the fuser wiper, check the
voltage at (10P) J11-16 (10R/12R/12C/12L) J11-3 (16L)J18-16 as
you POR again. It should stay at 0 until the 922 Error is displayed
and then go to +24VDC(10P: +5VDC); if it does not, replace the
system board, the fuser, and the fuser wiper. Next, measure the
voltage to the fuser lamp during a POR; it should be line voltage until
the 922 Error is displayed, if it is not, replace the LVPS, the fuser,
and the fuser wiper.
If the voltage to the fuser lamp is the not the same as the line
voltage, replace the LVPS.
If the lamp, fuser power cable, thermal fuse, thermistor and lamp
voltage are OK, check (10P)J11-16 (10R/12R/12C/12L)J11-3
(16L)J18-16 to see if the system board is sending the correct signal
to the TRIAC. At POR this signal should go to +24VDC(10P +5VDC)
and then immediately drop to 0VDC until the fuser is warm; if it does
not, replace the system board. If the signal is OK, replace the LVPS.
Fuser: 923 Error
Check the connection and continuity of the cable from the fuser exit
sensor board to system board (10P/10R/12R/12C/12L)J19
(16L)J16. Check the thermistor condition and connection.
Check the thermistor resistance at system board (10P/10R/12R/
12C/12L)J19-5 to J19-6 (16L)J16-5 to J16-6. It should be from 100K
Ohms to 260K Ohms when cold; it may be as low as 2.3K Ohms
when hot but increase quickly as the fuser cools.
Honeycomb
(Areas of the page are covered with faint 6 mm circles.)
This print defect is usually caused by the print cartridge. If it is not
the problem, verify that the tab on the transfer roll housing is
touching the contact on the HVPS; the transfer roll housing should
have continuity to ground. Make sure the HVPS ground lead to the
side frame is in place and making good contact.
Содержание 4039 - B/W Laser Printer
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Страница 116: ...102 Service Manual 4039 1XX Gear Train ...
Страница 117: ...Connector Locations 103 4039 1XX HVPS ...
Страница 118: ...104 Service Manual 4039 1XX Transfer Roller Housing Paper Guide Transfer roller housing for 10P has no paper guide ...
Страница 120: ...106 Service Manual 4039 1XX System Board Connectors 10R 12R 12L ...
Страница 122: ...108 Service Manual 4039 1XX System Board Connectors 16L ...
Страница 124: ...110 Service Manual 4039 1XX System Board Connectors 10P J21 J14 J11 ...
Страница 128: ...114 Service Manual 4039 1XX Operator Panel Output Bin Sensor Cable Handle Mounted Outbin Sensor ...
Страница 132: ...118 Service Manual 4039 1XX Toner Shield to Lower Frame Load Box Shaft to Upper Frame ...
Страница 139: ...Parts Catalog 125 4039 1XX Assembly 1 Covers 1 14 2 1A 12 1B 17 10 4 3 16 15 11 9 8 27 5 6 7 ...
Страница 141: ...Parts Catalog 127 4039 1XX Assembly 1 Covers Continued 1 14 2 1A 12 1B 17 10 4 3 16 15 11 9 8 27 5 6 7 ...
Страница 143: ...Parts Catalog 129 4039 1XX Assembly 2 Lower Frame 7 1 14 1 20 22 3 19 6 11 1 18 2 15 13 12 8 9 9 7 23 17 5 10 4 4A ...
Страница 151: ...Parts Catalog 137 4039 1XX Assembly 4 Printhead System Board 9 2 7 6 4 3 1 8B 8A 8 ...
Страница 157: ...Parts Catalog 143 4039 1XX Assembly 6 Paper Feed Alignment Gears ...
Страница 161: ...Parts Catalog 147 4039 1XX Assembly 8 Standard Paper Tray 200 sheet 1 5 2 3 4 6 ...
Страница 163: ...Parts Catalog 149 4039 1XX Assembly 9 Paper Tray 500 Sheet 5A ...
Страница 165: ...Parts Catalog 151 4039 1XX Assembly 10 Base for Paper Drawer 500 Sheet 4 4 2 1 3 ...
Страница 167: ...Parts Catalog 153 4039 1XX Assembly 11 Optional Paper Drawer 500 Sheet 1 12 5 6 7 13 11 9 8 4 10 2 14 3 16 3 ...
Страница 173: ...Parts Catalog 159 4039 1XX Assembly 13 Electronics 5A 7 13 6 9 11 5 4A 4 3 18 1 18 23 21 22 ...
Страница 175: ...Parts Catalog 161 4039 1XX Assembly 13 Electronics Continued 5A 7 13 6 9 11 5 4A 4 3 18 1 18 23 21 22 ...
Страница 177: ...Parts Catalog 163 4039 1XX Assembly 14 Transfer Roll ...
Страница 179: ...Parts Catalog 165 4039 1XX Assembly 15 Duplex Option 3 7 2 12 13 14 8 19 16 1 18 11 17 10 15 6 5 4 ...
Страница 181: ...Parts Catalog 167 4039 1XX Assembly 16 Envelope and 100 Sheet Auxiliary Feeder ...