Lexmark 4049LMO Service Manual - Page 6

in. 500-Sheet Paper Tray Top Cover .. ., Dual Rear Feeder Gear Alignment Adjustment .. .

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Page 6 highlights

4049-XXX Other Tests 3-17 Developed Image Test 3-17 LAN Information 3-17 Print Test Page 3-18 Print Test with RIP Board Removed 3-18 Repair Information 4-1 Handling ESD-Sensitive Parts 4-1 Adjustments 4-2 Envelope Restraint Spring On The Envelope+ Feeder Adjustment 4-2 Paper Restraint Spring On The 100-Sheet Auxiliary Feeder Adjustment 4-2 Envelope+ Feeder Magnet And 100-Sheet Auxiliary Feeder Magnet Adjustment 4-3 Dual Rear Feeder Gear Alignment Adjustment 4-4 Fuser Drive Gear Backlash Adjustment 4-5 Fuser Solenoid Adjustment 4-7 Paper Feed Magnet Adjustment 4-8 Printhead Skew Adjustment 4-9 Removal Procedures 4-10 Covers 4-10 Right Cover Removal 4-10 Front Cover Removal 4-10 Left Cover Removal 4-12 Top Cover Removal 4-12 14 in. 200-Sheet Paper Tray Top Cover 4-14 14 in. 500-Sheet Paper Tray Top Cover 4-14 D-roll Assembly Removal 4-14 Drive Motor Removal 4-14 Engine Board Removal 4-15 Exit Sensor Board Removal 4-16 Fan/Redrive Removal 4-17 Fuser Removal 4-18 Fuser Input Guide Removal 4-19 Fuser Lamp Removal 4-20 Fuser/Sensor Cable Removal 4-21 Fuser Solenoid Removal 4-22 Fuser Shroud Assembly Removal 4-23 HVPS Removal 4-24 INA or Hard Disk Removal 4-26 Input Sensor Board Removal 4-26 Lower Frame Assembly Removal 4-28 vi Service Manual

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vi
Service Manual
4049-XXX
Other Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-17
Developed Image Test . . . . . . . . . . . . . . . . . . . . . . . . .
3-17
LAN Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-17
Print Test Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-18
Print Test with RIP Board Removed . . . . . . . . . . . . . . .
3-18
Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Handling ESD-Sensitive Parts . . . . . . . . . . . . . . . . . . . . . . . .
4-1
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2
Envelope Restraint Spring On
The Envelope+ Feeder Adjustment. . . . . . . . . . . . . . . . .
4-2
Paper Restraint Spring On The 100-Sheet
Auxiliary Feeder Adjustment . . . . . . . . . . . . . . . . . . . . . .
4-2
Envelope+ Feeder Magnet And
100-Sheet Auxiliary Feeder Magnet Adjustment . . . . . . .
4-3
Dual Rear Feeder Gear Alignment Adjustment . . . . . . . .
4-4
Fuser Drive Gear Backlash Adjustment . . . . . . . . . . . . .
4-5
Fuser Solenoid Adjustment . . . . . . . . . . . . . . . . . . . . . . .
4-7
Paper Feed Magnet Adjustment . . . . . . . . . . . . . . . . . . .
4-8
Printhead Skew Adjustment . . . . . . . . . . . . . . . . . . . . . .
4-9
Removal Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-10
Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-10
Right Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . .
4-10
Front Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . .
4-10
Left Cover Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-12
Top Cover Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-12
14 in. 200-Sheet Paper Tray Top Cover . . . . . . . . . . . .
4-14
14 in. 500-Sheet Paper Tray Top Cover . . . . . . . . . . . .
4-14
D-roll Assembly Removal . . . . . . . . . . . . . . . . . . . . . . .
4-14
Drive Motor Removal. . . . . . . . . . . . . . . . . . . . . . . . . . .
4-14
Engine Board Removal . . . . . . . . . . . . . . . . . . . . . . . . .
4-15
Exit Sensor Board Removal . . . . . . . . . . . . . . . . . . . . .
4-16
Fan/Redrive Removal . . . . . . . . . . . . . . . . . . . . . . . . . .
4-17
Fuser Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-18
Fuser Input Guide Removal. . . . . . . . . . . . . . . . . . . . . .
4-19
Fuser Lamp Removal . . . . . . . . . . . . . . . . . . . . . . . . . .
4-20
Fuser/Sensor Cable Removal . . . . . . . . . . . . . . . . . . . .
4-21
Fuser Solenoid Removal . . . . . . . . . . . . . . . . . . . . . . . .
4-22
Fuser Shroud Assembly Removal . . . . . . . . . . . . . . . . .
4-23
HVPS Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-24
INA or Hard Disk Removal . . . . . . . . . . . . . . . . . . . . . .
4-26
Input Sensor Board Removal . . . . . . . . . . . . . . . . . . . .
4-26
Lower Frame Assembly Removal . . . . . . . . . . . . . . . . .
4-28