Epson DFX 9000
Revision B
Adjustment
Hardware adjustment
225
2. Hold Gear C immobile with your finger, and slowly rotate Gear B
back and forth. Check that the backlash level you could sense while
rotating Gear B is about 0.03 ~ 0.07 mm.
3. If the backlash level is appropriate, tighten the screws to secure the
APTC UNIT in that position. If the backlash is too small and both
gears are engaged too tightly, go back to step 1, move the APTC
UNIT slightly in the opposite direction (upward), and continue with
step 2.
Adjustment Procedure using the APG Gauge Jig
1. Mount the APG Gauge Jig, as shown in figure below.
Figure 5-4. Mounting the APG Gauge Jig
2. Verify that the reference pin on the side frame is in the positioning
hole of APTC UNIT. Loosen the two screws that secure the unit, and
push it gently downward so that Gear B is correctly contacting Gear
C. Lightly tighten the screws to temporarily secure its position.
Figure 5-5. APTC Unit Mount Position Adjustment
APG Gauge Jig
Fastening bolts
Positioning hole
Pivot point
Reference Pin
Adjustment
direction
Screw
Gear B
Gear C
(SS Gear)
Screw
APTC UNIT
Summary of Contents for DFX-9000
Page 1: ...EPSONDFX 9000 Serial Impact Dot Matrix Printer SEDM04003 SERVICE MANUAL ...
Page 8: ...C H A P T E R 1 PRODUCT DESCRIPTION ...
Page 61: ...Epson DFX 9000 Revision B Product Description Dimensions and weight 54 ...
Page 62: ...C H A P T E R 2 OPERATING PRINCIPLES ...
Page 99: ...Epson DFX 9000 Revision B Operating Principles Circuit operation 92 ...
Page 100: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 104: ...Epson DFX 9000 Revision B Troubleshooting Overview 97 Mechanism initialization e e e e e ...
Page 107: ...Epson DFX 9000 Revision B Troubleshooting Overview 100 PAPER FEEDING FF APG APPROACH ...
Page 130: ...C H A P T E R 4 DISASSEMBLY AND ASSEMBLY ...
Page 218: ...C H A P T E R 5 ADJUSTMENT ...
Page 263: ...Epson DFX 9000 Revision B Adjustment Additional functions 256 ...
Page 264: ...C H A P T E R 6 MAINTENANCE ...
Page 286: ...C H A P T E R 7 APPENDIX ...
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Page 324: ...EPSON DFX 9000 Revision B Appendix Component Layout 317 7 4 Component Layout ...
Page 333: ...EPSON DFX 9000 Revision B Appendix Parts list 326 ...