Service manual

vi
6.6.6 PAPER END DETECTION – TRAYS 1 & 2....................................6-43
6.6.7 REGISTRATION.............................................................................6-44
6.6.8 PAPER FEED LINE SPEED...........................................................6-45
6.6.9 BY-PASS TRAY..............................................................................6-46
6.7 IMAGE TRANSFER AND PAPER SEPARATION...................................6-47
6.7.1 OVERVIEW ....................................................................................6-47
6.7.2 TRANSFER BELT DRIVE ..............................................................6-48
6.7.3 TRANSFER AND CLEANING CURRENT ......................................6-49
6.7.4 TRANSFER BELT CLEANING.......................................................6-50
6.7.5 TRANSFER BELT CONTACT........................................................6-51
Mechanism .........................................................................................6-51
ACS (Auto Color Sensing) Mode ........................................................6-52
6.8 FUSING...................................................................................................6-53
6.8.1 OVERVIEW ....................................................................................6-53
6.8.2 FUSING UNIT DRIVE.....................................................................6-54
6.8.3 FUSING TEMPERATURE CONTROL............................................6-55
Fusing Temperatures..........................................................................6-55
Temperature Corrections....................................................................6-56
Overheat Protection............................................................................6-56
6.8.4 OIL SUPPLY AND CLEANING.......................................................6-57
6.8.5 NEW FUSING OIL SUPPLY UNIT DETECTION............................6-58
6.8.6 NEW FUSING UNIT DETECTION..................................................6-59
6.8.7 ENERGY SAVER MODE................................................................6-60
Level 1 Energy Saver Mode................................................................6-60
Level 2 Energy Saver Mode................................................................6-60
6.9 PAPER EXIT ...........................................................................................6-61
6.9.1 OVERVIEW ....................................................................................6-61
6.9.2 PAPER OVERFLOW DETECTION ................................................6-62
6.10 CONTROLLER......................................................................................6-63
6.10.1 OVERVIEW ..................................................................................6-63
6.10.2 BOARD LAYOUT..........................................................................6-65
6.10.3 PRINT DATA PROCESSING .......................................................6-66
RPCS Driver .......................................................................................6-66
PCL5c Driver ......................................................................................6-66
PS3 Driver ..........................................................................................6-67
CMS (Color Management System) .....................................................6-67
Gray Correction ..................................................................................6-67
BG/UCR (Black Generation/Under Color Removal)............................6-67
Gamma Correction .............................................................................6-67
Toner Limitation..................................................................................6-68
Dither Processing and ROP/RIP.........................................................6-68
6.10.4 CONTROLLER FUNCTIONS .......................................................6-69
Sample Print .......................................................................................6-69
Locked Print........................................................................................6-69
Paper Source Selection ......................................................................6-70
Tray Priority (Auto Tray Select)...........................................................6-70
Tray Lock............................................................................................6-70
Manual Tray Select.............................................................................6-70
Auto Continue.....................................................................................6-71