The Entire Output Is Blank......................................................... 166
Streaks Appear on the Output....................................................... 167
Pitched Color Dots................................................................ 167
Vertical Blanks................................................................... 167
Mottle........................................................................... 168
Ghosting........................................................................ 168
Fog............................................................................. 169
Bead-Carry-Out (BCO)............................................................ 170
Auger Mark...................................................................... 171
Wrinkled/Stained Paper............................................................ 171
The Top Margin Is Incorrect........................................................ 172
Color Registration Is out of Alignment............................................... 173
Protrudent/Bumpy Paper........................................................... 175
Adjusting Color Registration............................................................ 175
Performing Auto Correct........................................................... 175
Printing the Color Registration Chart. . . . . . . ......................................... 176
Determining Values............................................................... 177
Entering Values................................................................... 178
Noise................................................................................ 180
Other Problems....................................................................... 182
Understanding Printer Messages......................................................... 182
Contacting Service..................................................................... 193
Getting Help......................................................................... 193
LCD Panel Messages. . . . . . . ........................................................ 193
Status Monitor Alerts.............................................................. 193
Non Genuine Toner Mode.............................................................. 194
The Operator Panel............................................................... 194
The Printer Setting Utility.......................................................... 194
Chapter 8 Maintenance
Cleaning the Printer................................................................... 196
Cleaning Inside the Printer......................................................... 196
Cleaning the Color Toner Density (CTD) Sensor....................................... 199
Replacing Toner Cartridges. . . . ......................................................... 201
Overview........................................................................ 201
Removing the Toner Cartridges..................................................... 202
Installing a Toner Cartridge......................................................... 204
Ordering Supplies..................................................................... 205
Epson AcuLaser C1750 Series User’s Guide
Contents 5