Xerox DocuColor 12/DCCS50 User Manual

1/05
10-1
DocuColor 12/DCCS50
Principles of Operation
Reissue
10 Principles of Operation
0. Machine Overview
Introduction ..................................................................................................................... 10-3
Product Configurations.................................................................................................... 10-3
Principles of Operation Overview.................................................................................... 10-5
1. Standby Power
Overview ......................................................................................................................... 10-11
Voltage Dependent Assemblies ...................................................................................... 10-11
Unswitched AC Power .................................................................................................... 10-12
Power Switching Control Circuitry................................................................................... 10-14
Unswitched DC Power .................................................................................................... 10-16
Switched AC Power ........................................................................................................ 10-16
Switched DC Power ........................................................................................................ 10-17
Electrical Interlocks ......................................................................................................... 10-23
2. User Interface
Overview ......................................................................................................................... 10-27
User Interface Base PWBA............................................................................................. 10-28
LCD Display PWBA and Contrast Control PWBA ........................................................... 10-30
LCD Backlight Lamp and Power Supply PWBA.............................................................. 10-32
Key/LED PWBA .............................................................................................................. 10-32
Analog Touch Panel........................................................................................................ 10-35
3. Machine Run Control
Overview ......................................................................................................................... 10-37
Control Architecture ........................................................................................................ 10-37
Non-Volatile Memory....................................................................................................... 10-38
Machine Usage Modes ................................................................................................... 10-39
Self-test .......................................................................................................................
..
.. 10-40
PWBA LEDs.................................................................................................................... 10-41
PWBA Test Points........................................................................................................... 10-43
Copier Timing.................................................................................................................. 10-44
Job Control.....................................................................................................................
. 10-45
Dig
ital Front End ............................................................................................................. 10-49
Foreign Interface ............................................................................................................. 10-49
4. Start Power
Overview ......................................................................................................................... 10-51
Main Motor ...................................................................................................................... 10-51
Dru
m Motor ..................................................................................................................... 10-52
5. Document Transportation
Overview ......................................................................................................................... 10-55
Electrical Power .............................................................................................................. 10-56
DADF System Control..................................................................................................... 10-57
DADF Document Transport............................................................................................. 10-59
DADF Operation.............................................................................................................. 10-63
6. Imaging
Overview ......................................................................................................................... 10-67
Image Sensing (Digital Copier & Copier/Printer Configur
ation) ...................................... 10-70
IIT/IPS Cooling ................................................................................................................ 10-80
Image Processing (Digital Copier & Copier/Printer Conf
igurat
ions)................................ 10-80
Image Source Selection .................................................................................................. 10-85
Image Processing (All Configurations) ............................................................................ 10-86
Photoreceptor Exposure.................................................................................................. 10-88
7. Paper Supply
Overview ......................................................................................................................... 10-91
Paper Tray Specifications ............................................................................................... 10-92
Paper Size Sensing......................................................................................................... 10-95
Tray Level Lift and Sensing............................................................................................. 10-96
No Paper Sensing ........................................................................................................... 10-97
Tray 5 ..........................................................................................................................
..
.. 10-97
8. Paper Transportation
Overview ......................................................................................................................... 10-99
Paper Feeders................................................................................................................. 10-102
Vertical Transport............................................................................................................ 10-104
Tray 5 ..........................................................................................................................
..
.. 10-104
Paper Registration and Pre-Fuser Transport .................................................................. 10-106
Inverter and Duplex Paper Path ...................................................................................... 10-107
Print Exit ......................................................................................................................
..
.. 10-107
9. Xerographics
Overview ......................................................................................................................... 10-109
Photoreceptor Drum........................................................................................................ 10-110
Charging........................................................................................................................
..
10-112
Development ................................................................................................................... 10-114
Intermediate Belt Transfer (IBT)...................................................................................... 10-122
IBT Assembly .................................................................................................................. 10-123
Motors ..........................................................................................................................
..
. 10-126
Cleaning Systems ........................................................................................................... 10-126
Air Flow ........................................................................................................................
..
. 10-129
Process Controls............................................................................................................. 10-131
10. Fusing
Overview ......................................................................................................................... 10-135
The Fusing Process ........................................................................................................ 10-135
Functional Description of Fuser Subassemblies ............................................................. 10-136
Copy Exit.......................................................................................................................
..
10-143
11. Sorter / Mailbox
Overview ......................................................................................................................... 10-145
Mailbox/Sorter Electrical Connections............................................................................. 10-146
Offset Catch Tray Electrical Connections........................................................................ 10-148
Mailbox/Sorter Interlocks................................................................................................. 10-149

Xerox DocuColor 12/DCCS50 Specifications

General

Brand	Xerox
Model	DocuColor 12/DCCS50
Category	All in One Printer
Language	English