Diagnostic Information
27
J20-6 (10R/12R/12C/12L) J20-11 (16L) J17-11; the output sensor
signal is on (10P/10R/12R/12C/12L) J19-8 (16L) J16-8. The voltage
should be 0VDC when there is no paper in the sensor and +5VDC
when paper is present.
If paper is jamming, clean the paper path of obstructions or repair
any damaged parts. Very thin or thick paper, labels, transparencies,
or card stock will have a higher jam rate than regular xerographic
paper. Check the condition of the paper in the tray and verify that the
tray is installed correctly.
If paper is curling badly enough to cause a problem feeding or
stacking,
see “Fuser Temperature And Warm-Up Time” on page 40.
Paper Feed, Duplex Unit
Check that all gears and belts are working correctly both in the
duplex unit and on the tray top cover, and that the gear on the tray
top cover engages the gear on the duplexer.
If paper is jamming in the table cover area, make sure the table
cover is properly installed. Run diagnostics Duplex Test 1 to make
sure the paper is feeding far enough into the duplex unit before
reversing. Examine the condition of all rollers.
If paper is stopping or jamming as it is fed back across the top of the
paper tray, run diagnostics Duplex Test 2 to make sure there is no
slippage in the paper path. Make sure the paper tray top cover is not
damaged. Cold paper curl can also cause jams here;
see “Fuser
Temperature And Warm-Up Time” on page 40.
If paper is jamming at the front exit, verify that the front exit deflector
switch is functioning by disconnecting (10P/10R/12R/12C/12L) J19
(16L) J16 and checking the resistance from pin 1 to pin 2 as you
operate the switch.
Also
see “23 Paper Jams” on page 18
Summary of Contents for 4039-1XX
Page 10: ...x Service Manual...
Page 68: ...52 Service Manual...
Page 73: ...Repair Information 57...
Page 81: ...Repair Information 65...
Page 83: ...Repair Information 67...
Page 87: ...Repair Information 71...
Page 89: ...Repair Information 73 D B C A...
Page 91: ...Repair Information 75...
Page 95: ...Repair Information 79 B A...
Page 97: ...Repair Information 81 F E B F D C...
Page 109: ...Repair Information 93...
Page 117: ...Repair Information 101...
Page 120: ...104 Service Manual Gear Train...
Page 121: ...Connector Locations 105 HVPS...
Page 124: ...108 Service Manual System Board Connectors 10R 12R 12L...
Page 126: ...110 Service Manual System Board Connectors 16L...
Page 128: ...112 Service Manual System Board Connectors 10P J21 J14 J11...
Page 132: ...116 Service Manual Operator Panel Output Bin Sensor Cable Handle Mounted Outbin Sensor...
Page 136: ...120 Service Manual Toner Shield to Lower Frame Load Box Shaft to Upper Frame...
Page 142: ...126 Service Manual...
Page 144: ...128 Service Manual Assembly 1 Covers 1 14 2 1A 12 1B 17 10 4 3 16 15 11 9 8 27 5 6 7...
Page 146: ...130 Service Manual Assembly 1 Covers Continued 1 14 2 1A 12 1B 17 10 4 3 16 15 11 9 8 27 5 6 7...
Page 156: ...140 Service Manual Assembly 4 Printhead System Board 9 2 7 6 4 3 1 8B 8A 8...
Page 158: ...142 Service Manual Assembly 5 Paper Feed...
Page 160: ...144 Service Manual Assembly 5 Paper Feed Continued...
Page 162: ...146 Service Manual Assembly 6 Paper Feed Alignment Gears...
Page 166: ...150 Service Manual Assembly 8 Standard Paper Tray 200 sheet 1 5 2 3 4 6...
Page 168: ...152 Service Manual Assembly 9 Paper Tray 500 Sheet 5A...
Page 170: ...154 Service Manual Assembly 10 Base for Paper Drawer 500 Sheet...
Page 172: ...156 Service Manual Assembly 11 Optional Paper Drawer 500 Sheet...
Page 178: ...162 Service Manual Assembly 13 Electronics...
Page 180: ...164 Service Manual Assembly 13 Electronics Continued...
Page 182: ...166 Service Manual Assembly 14 Transfer Roll...
Page 184: ...168 Service Manual Assembly 15 Duplex Option...
Page 186: ...170 Service Manual Assembly 16 Envelope and 100 Sheet Auxiliary Feeder...
Page 190: ...174 Service Manual...