Epson Stylus Pro 7400 Service Manual page 8

EPSON Stylus Pro 7400/7800/9400/9800
Chapter 4 Disassembly & Assembly
4.1 Overview .......................................................................................................... 208
4.1.1 Precautions ............................................................................................... 208
4.1.2 Recommended Tools ............................................................................... 210
4.1.3 Recommended Screws ............................................................................. 210
4.2 Disassembly Procedure .................................................................................... 212
4.2.1 Basic Operations ...................................................................................... 214
4.2.2 Consumables ............................................................................................ 216
4.2.3 Removing the Panel Unit and Housing ................................................... 220
4.2.4 Removing the Circuit Boards .................................................................. 232
4.2.5 Removing the Carriage Mechanism ........................................................ 240
4.2.6 Removing the Paper Feed Mechanism .................................................... 252
4.2.7 Removing the Ink System Mechanism .................................................... 267
Chapter 5 Adjustment
5.1 Overview .......................................................................................................... 293
5.1.1 Precautions ............................................................................................... 293
5.1.2 Adjustment Workflow ............................................................................. 293
5.1.3 Parts and Units that Require Adjustments ............................................... 293
5.1.4 Required Adjustments by Part or Unit ..................................................... 294
5.1.5 Description of Adjustments ..................................................................... 296
5.1.6 Tools for Adjustments ............................................................................. 299
5.1.7 Adjustment Program Basic Operations ................................................... 300
5.2 Mechanical Adjustment .................................................................................... 301
5.2.1 Ink Mark Sensor Height Adjustment ....................................................... 301
5.2.2 Cutter Position/Height Adjustment .......................................................... 302
5.2.3 Paper Thickness Sensor Position Adjustment ......................................... 304
5.2.4 CR Timing Belt Tension Adjustment ...................................................... 306
5.2.5 PF Timing Belt Tension Adjustment ....................................................... 307
5.2.6 CR Encoder Sensor Adjustment .............................................................. 308
5.2.7 PF Encoder Sensor Adjustment ............................................................... 309
5.2.8 Air Leak Check ........................................................................................ 310
5.3 Basic Adjustment .............................................................................................. 313
5.3.1 RTC&USB ID&IEEE1394 ID ................................................................ 313
5.3.2 Head Rank ID .......................................................................................... 314
5.3.3 Input Serial Number ................................................................................ 315
5.3.4 T&B&S (Roll Paper) ............................................................................... 316
5.3.5 T&B&S + 980mm Band Feed ................................................................. 318
5.3.6 Cutter Pressure Adjustment ..................................................................... 320
5.3.7 Nozzle Bi-D Adjustment ......................................................................... 321
5.3.8 Print Head Slant Adjustment (PF) ........................................................... 322
5.3.9 Print Head Slant Adjustment (CR) .......................................................... 325
5.3.10 Ink Mark Sensor Level Adjustment ....................................................... 328
5.3.11 Auto Uni-D Adjustment ........................................................................ 329
5.3.12 Auto Bi-D Adjustment (P.G. 0.8/1.6) .................................................... 330
5.3.13 Ink Mark Sensor Adjustment for Auto Nozzle Check .......................... 331
5.3.14 Skew Check ........................................................................................... 333
5.3.15 Platen Position Adjustment ................................................................... 334
5.3.16 980mm Band Feed Adjustment ............................................................. 336
5.3.17 Initial Ink Charge Flag ON/OFF ........................................................... 337
5.3.18 NVRAM Back Up and Write ................................................................ 338
5.3.19 Initial Ink Charge ................................................................................... 339
5.3.20 Cleaning ................................................................................................. 339
5.3.21 Rear Sensor Adjustment ........................................................................ 340
5.3.22 Colorimetric Calibration (Color ID) ...................................................... 341
5.4 Advanced Adjustment ...................................................................................... 357
5.4.1 Auto Bi-D Adjustment ............................................................................. 357
5.4.2 Manual Bi-D Adjustment ........................................................................ 358
5.4.3 Destination Setting .................................................................................. 360
5.4.4 PF Micro Feed Adjustment (Bi-D) .......................................................... 361
5.5 Check Results ................................................................................................... 362
5.5.1 Check Nozzle ........................................................................................... 362
5.5.2 Check Alignment ..................................................................................... 363
5.5.3 Print Adjustment Check Pattern .............................................................. 364
5.5.4 Check Cutting .......................................................................................... 365
5.5.5 Print Image .............................................................................................. 366
5.6 Reset Counters .................................................................................................. 367
5.6.1 Reset PG Switching Counter ................................................................... 367
5.6.2 Reset PF Motor Counter .......................................................................... 367
5.6.3 Reset When CR Unit Change .................................................................. 368
5.6.4 Reset When Cleaning Unit Change ......................................................... 368
5.6.5 Reset When PrintHead Change ............................................................... 369
5.6.6 Reset When Cutter Solenoid Change ...................................................... 369
5.6.7 Reset Pump Counter ................................................................................ 370
5.6.8 Reset Ink Information .............................................................................. 370
5.7 Installing Firmware .......................................................................................... 371
5.8 Model Setting (when replacing the Main Board) ............................................. 372
Revision B
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