Epson Stylus Pro 4900/Epson Stylus Pro 4910 Revision A
ADJUSTMENT Overview 283
Confidential
Carriage
Mechanism
CR Belt/
Ink Mark Sensor
1 FFC Position Check Normal
√
--- ---
√ √ p.316
2 CR Belt Adjustment Normal
√
Sonic Tension Meter
U-507
---
√ √ p.319
3 PG Height Check & Adjustment Normal
√
PG adjustment jig
1.55 mm/1.65 mm/
1.75 mm
---
√ √ p.321
4 Nozzle Check Normal
√
--- Premium Glossy Photo Paper (250)
√ √ p.334
5 CR & PF Direction Head Slant Adjustment Normal
√
Calibrated loupe Premium Glossy Photo Paper (250)
√ √ p.336
6 CR Encoder and Scale Check Normal
√
--- ---
√ √ p.327
7 Active Damper Adjustment Normal
√
--- ---
√ √ p.329
8 Ink Mark Sensor Check & Adjustment Normal
√
---
Enhanced Matte Paper A4
(ASF Feed)
√ √ p.330
9 PW + T&B&S Check & Adjustment Normal
√
---
Enhanced Matte Paper A4
(ASF Feed & Rear Manual Feed)
√ √ p.378
10 Auto Bi-D Adjustment Normal
√
--- Premium Glossy Photo Paper (250)
√ √ p.341
APG Motor Assy
1 Counter reset after replacing the APG Motor Normal
√
--- ---
√ p.312
2 APG Check Normal
√
--- ---
√ √ p.326
Paper Feed
Mechanism
PF Motor
1 Counter reset after replacing the PF Motor Normal
√
--- ---
√ p.312
2 PF Belt Adjustment Normal
√
Sonic Tension Meter
U-507
---
√ √ p.366
3 Motor Measurement Adjustment Normal
√
--- ---
√ p.393
PF Encoder/PF Scale 1 PF Encoder and Scale Check Normal
√
--- ---
√ √ p.368
PF Belt 1 PF Belt Adjustment Normal
√
Sonic Tension Meter
U-507
---
√ √ p.366
Edge Release Assy 1
Counter reset after replacing the Edge Release
Assy
Normal
√
--- ---
√ p.312
ATC Motor Assy 1 ATC Motor Assy Normal
√
--- ---
√ p.312
Paper Thickness Sensor 1 Paper Thickness Sensor Position Adjustment
Serviceman
Mode
---
Paper thickness
sensor adjustment jig
(0.4/0.8 for Epson
Stylus Pro 4400, 0.5
for Epson Stylus Pro
7400)
---
√ √ p.369
Table 4-1. Adjustment items and the order by repaired part
Class Part/Unit Adjustment
Execution
Mode
Use of
SP
Jig Media RP RM Page
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