4
SC 4xx (Image Transfer and Transfer Errors) ............................................................................... 173
SC 5xx (Motor and Fusing Errors) ................................................................................................ 173
SC 6xx (Communication and Other Errors) .................................................................................. 178
Error Messages ................................................................................................................................ 179
Overview ....................................................................................................................................... 179
Error Messages............................................................................................................................. 179
Fax Error Codes ............................................................................................................................... 187
Fax Error Code Structure .............................................................................................................. 187
Fax Error Code Table ................................................................................................................... 188
Jam Detection ................................................................................................................................... 190
Paper Jam .................................................................................................................................... 190
Original Jam (ADF/ARDF) ............................................................................................................ 191
Image Quality ................................................................................................................................... 193
Problem at Regular Intervals ........................................................................................................ 193
Other Problems ................................................................................................................................ 194
Dark Lines in Halftone Areas at 75mm Intervals ........................................................................... 194
Recycled or Thin Paper Is Severely Curled after Printing ............................................................. 194
When Fluorescent/ LED Lamps Flicker (Only for 100V Models) ................................................... 194
Stain Appears in the Right and the Left Edges ............................................................................. 195
Poor Printing (Offset) .................................................................................................................... 196
Wrinkles appear When Using Limp Paper .................................................................................... 197
Low Image Density on Solid Images ............................................................................................. 197
Mottled Image on Solid Images .................................................................................................... 198
Toner Scattered on Horizontal Lines ............................................................................................. 198
7. Detailed Descriptions .................................................................................................................... 199
Guidance for Those Who Are Familiar with Predecessor Products .................................................. 199
Product Overview ............................................................................................................................. 201
Component Layout ........................................................................................................................ 201
Paper Path .................................................................................................................................... 202
Drive Layout .................................................................................................................................. 202
Component Layout (Printer Models) ............................................................................................. 203
Component Layout (MF Models)................................................................................................... 206
ADF/ARDF (for MF models) ............................................................................................................. 211
Overview ....................................................................................................................................... 211
Mechanism ................................................................................................................................... 212
Scanner (for MF models) .................................................................................................................. 214
Overview ....................................................................................................................................... 214
Mechanism ................................................................................................................................... 214
Printing Process ............................................................................................................................... 215
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