EPSON Stylus Pro 7600/9600
Revision A
Operating Principles
Print Mechanism Components
114
Paper Suction Fans
The printer is equipped with suction fans in the lower space in the rear. The space
in the column direction behind Paper Guide L2 is divided into 2 compartments
(Stylus Pro 7600) or 3 compartments (Stylus Pro 9600), and one fan is mounted in
each compartment. By drawing air through multiple holes punched in Paper Guide
L2 in the back surface of the paper path and blowing it out through the rear of the
printer housing, suction is applied to the surfaces of Paper Guides L1 and L2 and
the paper is stabilized (prevented from flying up) as it passes through the printer.
The suction fans undergo air flow control (fan rotation duty control), which is
carried out by firmware control based on the printer's operating state (when paper
is set and during printing, etc.) and the type of paper used.
NOTE:
Fans mounted
Stylus Pro 7600: 2 fans
Stylus Pro 9600: 3 fans
The following sensors aid in the paper feeding process.
P_REAR sensor
This sensor is attached to the Upper Paper Guide and is an optical (photo-
reflective) sensor. This sensor detects the rear edge of the paper and detects the
front edge when the paper is first loaded in the paper path. The position of this
sensor is stored in EEPROM.
Paper set lever, paper thickness detection (P_THICK, P_THICK_0.3)
P_THICK_0.3 Sensor:
Transmission type photosensor, left side.
P_THICK Sensor:
Transmission type photosensor, right side.
The mechanism is so designed that the threshold values for paper thickness are 0.3 ~
0.4 mm (P_THICK_0.3 sensor) and 0.8 ~ 0.9 mm (P_THICK sensor). The sensors
operate just when the pressure lever is brought down.
The designed detection values of the sensors for the UP and DOWN positions of the
pressure lever are 0.3 mm and 0.8 mm. The pressure lever in the UP position is
detected by a combination of both sensors.
“Thick paper state” occurs when the connections are open.
There is no error processing since this mechanism can not determine whether it has
broke down or not.
Since the mechanism is always in recognition of thick paper, printing on thin paper is
carry out with the platen gap kept large.
Figure 2-13. Paper Feed Mechanical Unit (Stylus Pro 7600) 2/2
Table 2-5. Modes
Paper Thickness
Shield Plate
Sensor Output
P_THICK_0.3
P_THICK
P_THICK_0.3
P_THICK
Below 0.3 mm
Absent (Open)
Absent (Open)
L
L
0.3 mm to 0.8 mm incl.
Present (Closed)
Absent (Open)
H
L
0.81 mm or above
Present (Closed)
Present (Closed)
H
H
Connector not connected
-
-
H
H
Pressure release (Hi-Up)
-
-
L
H
Paper suction fans
P-Rear sensor
Содержание Stylus Pro 7600 Photographic Dye Ink
Страница 1: ...EPSONStylusPro7600 9600 Color Large Format Inkjet Printer SERVICE MANUAL SEIJ01017 ...
Страница 5: ...Revision Status Revision Date of Issue Description A May 10 2002 First release ...
Страница 11: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 100: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 121: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 151: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Страница 210: ...C H A P T E R 5 ADJUSTMENT ...
Страница 274: ...C H A P T E R 6 MAINTENANCE ...
Страница 281: ...C H A P T E R 7 APPENDIX ...
Страница 284: ...EPSON Stylus Pro 7600 9600 Revision A Appendix Connectors 284 Figure 7 1 Stylus Pro 7600 9600 Connectors ...
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Страница 292: ...EPSON Stylus Pro 7600 9600 Revision A Appendix Exploded Diagrams 292 7 4 Exploded Diagrams ...
Страница 296: ...300 301 Rev 01 C472 POWE 011 PX 7000 EPSON STYLUS PRO 7600 No 4 Q J D X K W B B L C O U N A T Y Y ...
Страница 297: ...Rev 01 C472 MECH 011 PX 7000 EPSON STYLUS PRO 7600 No 5 511 510 509 508 507 506 505 504 502 503 501 500 D C ...
Страница 304: ...851 850 854 Rev 01 C472 MECH 081 PX 7000 EPSON STYLUS PRO 7600 No 12 853 853 855 851 856 ...
Страница 308: ...300 301 Rev 01 C473 POWE 011 PX 9000 EPSON STYLUS PRO 9600 No 4 Q J D X K W B B L B C O U N A T Y Y ...
Страница 309: ...511 511 510 509 508 507 506 505 504 502 503 501 500 Rev 01 C473 MECH 011 PX 9000 EPSON STYLUS PRO 9600 No 5 D C ...
Страница 315: ...851 850 854 Rev 01 C473 MECH 081 PX 9000 EPSON STYLUS PRO 9600 No 12 853 853 855 851 856 ...
Страница 316: ...SCREW SET X 5 901 900 906 907 905 904 903 903 902 902 908 Rev 01 C473 MECH 091 PX 9000 EPSON STYLUS PRO 9600 No 13 909 ...