xiv
Phaser 7700 Color Laser Printer Service Manual
Windows Printing Problems
..........................................................................
3-104
Troubleshooting Network Problems
..............................................................
3-105
Media Jams and the Paper Path
...........................................................................
3-106
Media-based Problems
..................................................................................
3-106
Multiple-sheet Pick
........................................................................................
3-106
Mis-pick
........................................................................................................
3-106
Skewed Image
...............................................................................................
3-106
Damaged Prints
.............................................................................................
3-107
Fuser Jams
....................................................................................................
3-107
Exit Jams
.......................................................................................................
3-107
Print Image Quality Problems
...............................................................................
3-108
Light (undertone) Prints (all colors)
..............................................................
3-108
Blank Prints
...................................................................................................
3-108
One Color is Faded or Missing
......................................................................
3-109
Missing Band in Direction of Paper Travel
.....................................................
3-110
Streaks in Direction of Paper Travel
..............................................................
3-111
Streaks Parallel with the Leading Edge
..........................................................
3-112
Random Missing Spots
.................................................................................
3-113
Random
Spotting
.........................................................................................
3-113
Single Color
...................................................................................................
3-113
All Colors
.......................................................................................................
3-114
Repetitive Mark Appears on Each Print
.........................................................
3-114
Background Contamination
...........................................................................
3-115
Unfused Image or Image Easily Rubs Off of Page
.........................................
3-116
Toner on Back of Print
...................................................................................
3-117
Print is Mottled
..............................................................................................
3-118
Image Mis-registered on Paper
.....................................................................
3-119
Residual Image or Ghosting
..........................................................................
3-120
Light Bands, Dark Bands, or Mottled Prints
..................................................
3-121
Adjustments and Calibration
4-123
Internal Hard Drive 4-123
Registration Control (RegiCon) Adjustment Overview
..........................................
4-124
Coarse RegiCon Initialization
.........................................................................
4-124
Coarse and Fine Skew Adjustments
...............................................................
4-125
In/Out Skew Adjustment
................................................................................
4-125
Center Skew Adjustment
...............................................................................
4-126
Processes of the RegiCon Adjustment
..................................................................
4-127
Check Print-quality
........................................................................................
4-127
Preparation for RegiCon
................................................................................
4-127
Registration Control Procedures
..........................................................................
4-130
RegiCon Flowchart
........................................................................................
4-133
Step 1: Belt Edge Learn
.................................................................................
4-134