Sony C9000 User Manual

Page of 157
41388601TH  Rev.2 
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CONTENTS
1. SPECIFICATIONS ............................................................................................ 7
1.1
Basic System Configuration ............................................................................................. 7
1.2
Printer Engine Specifications ........................................................................................... 8
1.3
Option Configuration ........................................................................................................ 9
1.4
Specifications ................................................................................................................. 10
2. OPERATION DESCRIPTION ......................................................................... 12
2.1
Main Control Board (CRM-PWB) ................................................................................... 13
2.2
Engine Control Board (K73 PWB) .................................................................................. 15
2.3
Power Units .................................................................................................................... 16
2.4
Mechanical Processes ................................................................................................... 17
2.4.1
Electrophotographic process ............................................................................ 18
2.4.2
Paper running process ..................................................................................... 22
2.5
Sensor ............................................................................................................................ 31
2.5.1
Paper related sensors ...................................................................................... 31
2.5.2
Other sensors ................................................................................................... 32
2.6
Color Misalignment Correction ....................................................................................... 33
2.7
Transfer Control Responds to Environmental Changes
(Room Temperatures and Relative Humidities) ............................................................. 33
2.8
Paper Jam Detection ..................................................................................................... 34
2.9
Cover Opening ............................................................................................................... 35
2.10 Toner Low Detection ...................................................................................................... 36
2.11 Paper Size Detection ..................................................................................................... 37
2.12 Operation at Power-on ................................................................................................... 38
2.12.1 Self-diagnostic test ........................................................................................... 38
2.13 Color Misalignment Detection ........................................................................................ 39
2.14 Version Read of Periodically Replaced Units ................................................................ 40
2.15 Life Counter for Replaceable Units ................................................................................ 40
2.16 Toner Consumption Detection ....................................................................................... 40
3. PARTS REPLACEMENT ................................................................................ 41
3.1
Precautions in Replacing Parts ...................................................................................... 41
3.2
Parts Layout ................................................................................................................... 43
3.3
Replacing Parts .............................................................................................................. 50
3.3.1
Top cover .......................................................................................................... 51
3.3.2
LED Assy/ LED Assy spring ............................................................................. 52
3.3.3
Top cover unit ................................................................................................... 53
3.3.4
Control panel Assy/ Control panel bezel/ LED control PWB/ Toner sensor/
Stack full sensor/ Control panel tape harness/ Eject roller ............................... 54
3.3.5
Top cover handle/ Tope cover latch/ Top cover latch spring ............................ 55
3.3.6
Eject guide Assy ............................................................................................... 56
3.3.7
Cassette Assy/ Blind cover/ Side cover R Assy ............................................... 57
3.3.8
Feed rollers ....................................................................................................... 58
3.3.9
Left side cover .................................................................................................. 59
3.3.10 Face-up tray ..................................................................................................... 60
3.3.11 Front cover ....................................................................................................... 61
3.3.12 Rear cover ........................................................................................................ 62
3.3.13 Multipurpose tray Assy/ Multipurpose tray cover Assy/ Links/
Multipurpose tray top cover/ Multipurpose tray drive gear ................................ 63
3.3.14 Drum contact Assys .......................................................................................... 64
3.3.15 Registration roller Assy (A)/ Registration drive gear (A) ................................... 65