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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
Summary of Contents for 7700DX - Phaser Color Laser Printer
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