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Xerox 3300MFP Service Manual - Page 51

Scanner ADF, Trouble, Failure Analysis

UPC - 095205744415

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Theory of Operation LSU ■ The LSU consists of LD (Laser Diode) and polygon motor control. When the controller generate the printing signal LD will turn on and Polygon motor starts. If the receiving part in LSU detect the beam and then Hsync is generated. When the rotation of polygon motor is steady, it is time of LSU ready status for printing. If either of two condition is not satisfied, LSU error is expected. Trouble Polygon Motor Error Hsync Error Failure Analysis No steady rotation of Polygon Motor In spite of steady rotation of Polygon Motor, No generation of the Hsync signal Scanner (ADF) ■ Scanning Method: Color CCD (600 x 1200 dpi) ■ Scan speed: SDMP 28 cpm/MDSP 20 cpm Phaser 3300MFP Service Manual s3300mfp-150 2-9

Section	Page
Service Terms	5
Symbols Marked on the Product	6
Power Safety Precautions	7
Electrostatic Discharge Precautions	8
Service Safety Summary	9
Regulatory Information	13
Manual Organization	15
Contents	17
General Information	23
Printer Introduction and Overview	24
Technical Support Information	24
Printer Configuration	25
Parts of the Printer	26
Front View	26
Rear View	27
Duplex Unit	28
LAN	28
Control Panel	29
Printer Options	30
Additional Memory	30
Optional 250-Sheet Feeder (Tray 2)	30
Maintenance Items	31
Consumables	31
Specifications	32
General Specifications	32
Print Specifications	34
Scan Specifications	34
Telephone Specifications	37
Fax Specifications	37
Network Specifications	39
Paper Handling Specifications	39
Print Cartridge Specifications	40
CentreWare IS	41
Accessing CentreWare IS	41
Theory of Operation	43
Phaser 3300MFP Operational Overview	44
Summary	44
Paper Path	45
Engine H/W	45
Assembly Description	47
Mechanical Parts Specifications	54
Frame	54
Feeding Part	54
Transfer Assembly	55
Driver Assembly	55
Fuser	56
LSU (Laser Scanner Unit)	58
Print Cartridge	60
FAX Section	61
Line Interface	64
Scan Part	65
Control Panel Section	65
Printer Section	66
Copier Section	69
Telephone Section	69
SMPS & HVPS board	70
Engine F/W	75
Control Algorithm	75
S/W Descriptions	78
Overview	78
Architecture	78
Data and Control Flow	79
Error Messages and Codes	81
Introduction	82
Jam Error Codes	82
JAM 0	82
JAM 1	83
JAM 2	84
Duplex Jam 1	85
Duplex Jam 0	86
Error Messages	87
General Troubleshooting	93
Procedure for Checking the Symptoms	94
Tech Mode	95
How to Enter Tech Mode	95
Setting-up System in Tech Mode	95
Data Setup	95
Machine Test	97
Report	99
Paper Feeding Problems	100
Wrong Print Position	100
Multi-Feeding	100
Paper rolled in the fuser	100
Paper rolled in the OPC	101
Defective ADF	101
Printing Problems (Malfunction)	102
Defective Operation (LCD WINDOW) Display	102
Defective LCD Operation	102
Fuser Gear not functioning due to melting	102
Paper Empty	102
Paper Empty without indication	103
Door Open	103
No Beep when the Door is open	103
Defective Motor operation	103
No Power	104
Vertical Line is Curved	104
Fax & Phone Problems	105
No Dial Tone	105
Defective MF DIAL	105
Defective FAX FORWARD/RECEIVE	106
Defective FAX FORWARD	106
Defective FAX RECEIVE (1)	106
Defective FAX RECEIVE (2)	107
Defective FAX RECEIVE (3)	107
Defective FAX RECEIVE (4)	107
Defective Automatic Receiving	107
Copy Problems	108
White Copy	108
Black Copy	108
Abnormal noise	108
Defective Image Quality	109
Scanning Problems	109
Defective PC Scan	109
Defective Image Quality of PC Scan	109
Print Cartridge Service	110
Safekeeping of the Print Cartridge	110
Service for the Life of the Print Cartridge	110
Print Cartridge Problems	112
Network Problems Troubleshooting	115
General Problems	115
Macintosh Problems	115
Windows Problems	115
Abnormal Image Printing and Defective Roller	117
Print-Quality Troubleshooting	119
Print-Quality Problems Overview	120
Defects Associated with Specific Printer Components	120
Checklist Before Troubleshooting Print-Quality	122
Checking the Printer Condition	122
Checklist Before Troubleshooting Image Quality	123
Print-Quality Specifications	125
Operating Environment	125
Quality Paper	125
Paper Condition	125
Printer Condition	125
Print-Quality Troubleshooting	126
Print-Quality Defect Definitions	126
Repeating Defect Measurement	127
Vertical Black Line and Band	128
Vertical White Line	128
Horizontal Black Band	129
Black/White Spot	130
Light Image	130
Dark or Black Image	131
Uneven Density	131
Background	132
Ghost (1)	132
Ghost (2)	133
Ghost (3)	133
Ghost (4)	133
Stains on the front of the page	134
Stains on back of the page	134
Blank Page Print Out (1)	135
Blank Page Print Out (2)	135
Adjustments and Calibrations	137
Altitude Adjustment	138
Altitude Specifications	138
Printer Settings Utility Method (USB Connection Only)	139
Cleaning and Maintenance	141
Service Maintenance Procedure	142
Recommended Tools	142
Cleaning	142
Cleaning the Print Cartridge	143
Cleaning the Laser Unit	144
Maintenance	145
RIP (Repair, Inspect, and Prevent) Procedure	145
Software Maintenance	146
Clearing the Memory	146
Flash Upgrade	147
USB Connection	147
Network Connection	148
Resetting Firmware	150
USB Connection	150
Restoring Printer Setting and Network Setting (Network Connection)	150
Service Parts Disassembly	153
Overview	154
Standard Orientation of the Printer	155
Preparation	155
Laying the Unit on its Back	156
Notations in the Disassembly Text	157
Maintenance Items and Consumables	158
ADF Pickup Assembly (PL 13.0.4)	158
ADF Rubber Pad (PL 13.0.3-2)	159
Transfer Roller	160
Pick Up Roller (PL3.0.3-9)	161
Fuser Assembly (PL3.0.61)	162
Tray Holder Pad (PL15.0.4)	168
Print Cartridge (PL1.0.16)	170
Covers	171
Upper Cover (Left, Right) (PL2.0.7 & 2.0.8)	171
Front Cover	173
MP Tray Assembly	175
Rear Cover (PL5.1.0)	176
Face Up Cover Assembly	177
Side Cover (Left, Right) (PL2.0.5 & 4)	178
Control Board Cover	180
Control Panel (OPE Unit)	181
Middle Cover Assembly	185
Mid-Front Cover	186
Duplex	187
Duplex Unit (PL1.0.26)	187
Paper Feeder	188
Pick Up Roller Assembly	188
Pick Up Roller Shaft	189
Duplex Guide Housing (With Feed Roller)	190
MPF Housing	191
MP Pick Up Assembly	192
Feed Roller Parts	193
Pick Up Gear Assembly & Solenoids	197
Exit Roller	198
Scanner Assembly	199
ADF Assembly	199
Platen Assembly	204
Xerographics	213
LSU	213
CRUM2 PBA	214
Drive	215
Drive Assembly	215
Duplex Drive Assembly	217
Fuser Drive Assembly	218
Electrical	220
Control Board Shield Assembly	220
Control Board	222
Fax/Modem Board	224
SMPS Shield Assembly	225
Connection PBA	226
Fans	228
HVPS Housing	229
Options	231
Memory Card	231
Optional 250-Sheet Feeder (PL1.1.18)	233
Parts List	235
Serial Number Format	236
Using the Parts List	238
Exploded Views and Parts Lists	239
Parts List 1.0 Main	239
Parts List 2.0 Cover Assembly	242
Parts List 3.0 Middle Cover Assembly	244
Parts List 4.0 Front Cover	245
Parts List 5.0 Rear Cover Assembly	246
Parts List 6.0 Frame	247
Parts List 7.0 Fuser Drive Assembly	251
Parts List 8.0 Main Drive Assembly	252
Parts List 9.0 MP Assembly	253
Parts List 10.0 Scan Assembly	255
Parts List 11.0 Platen Assembly	256
Parts List 12.0 Cover Platen Assembly	259
Parts List 13.0 ADF Assembly	261
Parts List 14.0 Control Panel (OPE Unit)	264
Parts List 15.0 Cassette Assembly	266
Parts List 16.0 Fuser Assembly	267
Parts List 17.0 Duplex Unit (Optional)	269
Xerox Supplies and Accessories	271
Wiring Diagrams	273
Block Diagram	274
WD 2 Connection Diagram	275
WD 3 Power Signal	276
Control Board Power signal	276
OPE/ADF Power signal	277
HVPS/Voltage map	278
Interconnection Diagrams	279
Block Diagram	279
Control Board Connector Locations	280
Control Board to Laser Unit, Ethernet, USB	281
Control Board to Main and Flat Motors, Clutches, Sensors, Laser Interlock	282
Control Board to HVPS, CRUM, Paper Empty Sensor	283
Control Board to Opt. Tray, Control Panel, ADF Board	284
Control Board to Modem Board, USB Host Board	285
SMPS to HVPS, HVPS to Connection Board (Motors, Fans)	286
Control Board to Fuser, CCD	287
Appendix	289
Phaser 3300MFP Menu Map	290