Operating Principles
Rev. A
2-9
2.2.5 Platen Gap (PG) Adjust Mechanism
The PG adjust mechanism, located at the top right of the printer mechanism, allows the user to set the
proper platen gap (distance between paper and nozzle surface) for the paper thickness to prevent ink
smudging. The PF Adjustment mechanism consists of the PG adjust lever, CR guide shaft, and
parallelism adjust bushings. Shifting the lever from “0” to “1” turns the CR guide shaft that joins to the
lever. The joint for the parallelism adjust bushing and CR guide shaft has an eccentricity toward the
guide shaft, which moves the guide shaft from or toward the platen. With this movement, the platen gap
changes from wide to narrow or vice versa.
Paper Type
Adjust lever Position
PG Adjustment Value
Cut Sheet, OHP Sheet,
Label, Continuous paper
Rear
0
Envelope ,Card, Index card
Front
+ 0.7 mm
Table 2-6. Platen Adjust Lever positions
Parallelism Adjust Bushing
Eccentricity
Platen Surface
Platen Gap
CR Guide Shafts
0
+
PG Adjust Lever
Printhead
Figure 2-8. Platen Gap Adjustment Mechanism
Summary of Contents for 1520 - Stylus Color Inkjet Printer
Page 138: ...Maintenance Rev A 6 5 8 9 10 10 10 10 10 10 10 10 Figure 6 2 Lubrication Points 2 ...
Page 146: ...Appendix Rev A A 7 A 2 Circuit Diagrams Figure A A 2 C211 MAIN B Board Circuit Diagram 1 2 ...
Page 147: ...EPSON Stylus COLOR 1520 Rev A A 8 ...
Page 148: ...Appendix Rev A A 9 Figure A A 3 C211 MAIN B Board Circuit Diagram 2 2 ...
Page 149: ...EPSON Stylus COLOR 1520 Rev A A 10 ...
Page 152: ...Appendix Rev A A 13 A 3 Component Layout Figure A A 6 C211 MAIN B Board Component Layout ...
Page 153: ...EPSON Stylus COLOR 1520 Rev A A 14 Figure A A 7 C172 PSB Board Component Layout ...
Page 154: ...Appendix Rev A A 15 Figure A A 8 C172 PSE Board Component Layout ...
Page 156: ...Appendix Rev A A 17 Figure A A 10 Stylus COLOR 1520 Exploded Diagram 2 ...
Page 157: ...EPSON Stylus COLOR 1520 Rev A A 18 Figure A A 11 Stylus Color 1520 Exploded Diagram 3 ...
Page 165: ...EPSON SEIKO EPSON CORPORATION ...
