Epson EPL-N4000 - Page 28

Epson EPL-N4000

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EPSON EPL-N4000/EPL-N4000+ CHAPTER 1 Product Description

Rev.B 14

Figure 1-3. Skew



Product Life: 1500,000 sheets or 5 years in use, whichever comes

first.



Maintenance: MTTR: Avera

g

e less than 40 minutes.

G uaranteed

print area

d

Bottom

a

c

b

Table of Contents

Default Chapter4
- About this Manual4
- Symbols Used in this Manual4
- Safety Information5
- Safety Precautions5
- Safety Components7
- Table of Contents9
Product Description15
Features16
Changes from EPL-N4000 to EPL-N400019
Basic Specification22
- Controller Specification22
- Engine Specification23
- Paper Specification24
- Electrical Specification26
- Reliability, Durability and Maintainability27
- Safety Approval29
- Environmental Specification30
- External Dimension and Weight31
- Other Specifications32
- Consumables32
- Configuration32
- Host Interface Specification33
Operation37
- Control Panel37
  - Status Sheet40
- Panel Setting Mode40
- User Setting Items Not Included in the Setting Menu57
- Special Operation Functions58
  - Rev.b58
  - Rev.b59
- Maintenance Mode60
  - Operation60
- Engine Status Sheet61
- Initialization Process65
Operating Principles66
Mechanical Drive67
- Overview67
- Mechanical Drive Component67
Paper Path70
- Paper Path Components71
- Paper Feed, Transport and Paper Eject Drive73
- Mechanical Drive for Paper Fed from the MSI73
- Mechanical Drive for Paper Fed from Tray174
- Mechanical Drive for Paper Fed from Tray274
- Mechanical Drive for Registration75
- Mechanical Drive for the Drum and BTR75
- Mechanical Drive for the Fuser76
- Mechanical Drive for Exit Drive76
- Mechanical Drive for Offset77
- Paper Path Component Control77
ROS (Raster Output Scanner)78
- ROS Components78
  - Housed Inside the ROS Assembly78
- ROS Operation79
  - Image Resolution80
  - ROS Control80
Print Process82
- Charge83
- Exposure84
- Develop85
- Transfer86
- Detack86
- Fusing87
- Clean87
Print Sequence88
Operating Principles for Power Supply Circuit90
- Power Supply Circuit90
- Power Supply Components90
Printer Control93
- Printer Control Components95
- Controller101
  - Functions of the Controller101
  - Specification on the Controller101
Troubleshooting104
- Service Flowchart104
- FIP Flowchart105
Printer Message108
- Printer Message110
- Service Req. Error113
  - Engine Error113
  - Controller Error113
- Operation When Service Req. Error Occurs114
Printer Performance Problems(Not Indicated by Error Codes)115
- Inoperative Printer115
- Erratic Operation117
- Inoperative Control Panel118
- Rev.b118
- Inoperative Main Drive Assembly119
- Inoperative Paper Feed Drive121
- J1-2 Is Not Displayed When the EP Cartridge Is out of Toner122
- Inoperative Interlock Switch122
- Inoperative Offset123
Image Quality Fips124
- Light(Undertoned) Prints125
- Blank White127
- Black Prints128
- Vertical Band Deletions130
- Horizontal Band Deletions131
- Vertical Streaks132
- Horizontal Streaks133
- Spot Deletions135
- Spots136
- Residual Image or Ghosting138
- Background139
- Skewed Image141
- Damaged Prints142
- Unfused Image or Image Easily Rubbed off143
- Image Not Registered Correctly143
Secondary Fips144
Disassembly and Assembly146
Overview147
- Cautions before Starting147
- Tools147
- Notations in the Manual147
Procedures for Disassembling149
- Fuser Full Cover152
  - Removal152
  - Installation152
- Top Cover Assembly153
  - Removal153
  - Installation153
- Rear Cover Assembly154
  - Removal154
  - Installation154
- Right Cover155
  - Removal155
  - Installation155
- Control Panel156
  - Removal156
  - Installation156
- Rear Cover 1TM157
  - Removal157
  - Installation157
- Tray 1 Lift up Motor158
  - Removal158
  - Installation158
- Tray 1 Feed Clutch159
  - Removal159
  - Installation159
- Feed, Nudger, and Retard Rolls160
  - Removal160
  - Installation160
- Tray1 Take Away Roll Assembly161
  - Removal161
  - Installation162
- Tray 1 Feeder Assembly164
  - Removal164
  - Installation165
- Support Assembly Spring166
  - Removal166
  - Installation166
- Tray1 Retard Assembly167
  - Removal167
  - Installation167
- Tray 1&2 Front Chute Assemblies169
  - Removal169
  - Installation169
- Tray 1 & Tray 2 Level Sensors170
  - Removal170
  - Installation170
- Tray1 & Tray 2 no Paper Sensors171
  - Removal171
  - Installation171
- Tray 1 & Tray 2 Paper Size Sensors172
  - Removal172
  - Installation172
- Tray 2 Feed Clutch173
  - Removal173
  - Installation173
- Tray 2 Feeder Assembly174
  - Removal174
  - Installation175
- Tray2 Take Away Roll Assembly176
  - Removal176
  - Installation176
- Tray 2 Retard Assembly177
  - Removal177
  - Installation177
- MSI Feeder Assembly (Manual Feeder)178
  - Removal178
  - Installation178
- MSI Tray Assembly178
  - Installation179
- MSI Support Assembly180
  - Removal180
  - Installation180
- MSI Size Sensor Assembly181
  - Removal181
  - Installation182
- MSI Feed Clutch183
  - Removal183
  - Installation185
- MSI Feed Roll186
  - Removal186
  - Installation186
- MSI Nudger Roll187
  - Removal187
  - Installation187
- MSI Nudger Roll Assembly188
  - Removal188
  - Installation188
- MSI Pad189
  - Removal189
  - Installation189
- MSI Friction Clutch190
  - Removal190
  - Installation190
- MSI No-Paper Sensor Assembly191
  - Removal191
  - Installation191
- L/H Low Cover Assembly192
  - Removal192
  - Installation193
- Left Lower Cover Assembly194
  - Removal194
  - Installation194
- Left Lower Cover Pinch Roll Assembly195
  - Removal195
  - Installation195
- Left Lower Cover Interlock Switch196
  - Removal196
  - Installation196
- Tray 2 Take Away Sensor197
  - Removal197
  - Installation197
- Registration Clutch198
  - Removal198
  - Installation198
- Left Upper Cover Assembly199
  - Removal199
  - Installation200
- Left Chute Assembly201
  - Removal201
  - Installation201
- Registration Chute Assembly202
  - Removal202
  - Installation202
- Registration Roll Assembly203
  - Removal203
  - Installation203
- Registration Sensor204
  - Installation204
- ROS Assembly205
  - Removal205
  - Installation205
- EP Cartridge (Toner Cartridge)206
  - Removal206
  - Installation206
- BTR Assembly (Transfer Roller Unit)208
  - Removal208
  - Installation208
- Toner Sensor209
  - Removal209
  - Installation209
- CRU Interlock Switch210
  - Removal210
  - Installation210
- Fuser Assembly211
  - Removal211
  - Installation211
- Fuser Drive Assembly212
  - Removal212
  - Installation213
- Offset/Exit Assembly214
  - Removal214
  - Installation214
- Exit Drive Assembly215
  - Removal215
  - Installation215
- Exit Gate Solenoid216
  - Removal216
  - Installation216
- Offset Motor217
  - Removal217
  - Installation217
- Face up Exit Sensor218
  - Removal218
  - Installation218
- Offset Roller Assembly219
  - Removal219
  - Installation219
- Lower Chute Assembly220
  - Removal220
  - Installation220
- Upper Chute Assembly221
  - Removal221
  - Installation221
- Exit Roll Assembly222
  - Removal222
  - Installation222
- Full Stack Sensor223
  - Removal223
  - Installation223
- Inverter Clutches224
  - Removal224
  - Installation224
- Main Drive Assembly225
  - Removal225
  - Installation227
- Main Power Switch228
  - Removal228
  - Installation228
- Low Voltage Power Supply(LVPS) Assembly229
  - Removal229
  - Installation229
- AC Driver PWB230
  - Removal230
  - Installation230
- High Voltage Power Supply(HVPS) Assembly231
  - Removal231
  - Installation231
- Noise Filter PWB232
  - Removal232
  - Installation232
- Left Cover Interlock Switch Assembly233
  - Removal233
  - Installation233
- Mcu(Machine Control Unit) PWB234
  - Removal234
  - Installation235
- Controller Board236
  - Removal236
  - Rev.b236
  - ESS Box237
    - Removal237
    - Installation237
Adjustment238
- Maintenance240
Maintenance241
- Exchange Units and Parts by User241
Appendix242
Connector Pin Diagram243
- Pin Alighnment243
- How to Use P/J Location Table and Map245
- Signal Information253
Board Component Layout265
- C262 Main Board Component265
Parts List267
- Top Cover Assembly267
- Front Cover268
- Rear, Left and Right Cover269
- Tray Unit - Paper Stack270
- Tray Unit - End Guide271
- Tray Interface -Tray 1272
- Paper Pick up - Tray 1273
- Retard and Take Away-Tray 1274
- Tray Interface-Tray 2275
- Paper Pick Up-Tray 2276
- Retard and Take Away- Tray 2277
- Feed Drive Transmission278
- Multi Sheet Inserter and Msi/Duplex Support279
- MSI Feeder Assembly280
- Upper Feeder Assembly281
- MSI Tray Assembly282
- Tray 1 Frame and Left Cover283
- Tray 2 Frame and Left Cover284
- Registration285
- Left Upper Cover Assembly286
- Transport Chute Assembly287
- ROS Assembly288
- Xerography and Development289
- Fuser Assembly290
- Exit Lower Chute291
- Offset Roller292
- Exit Upper Chute Assembly293
- Exit Drive Assembly294
- Main Drive Assembly295
- Fuser Drive Assembly296
- Power Inlet and LVPS297
- HVPS and MCU PWB298
- Controller Assembly299

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