EPSON Stylus Pro 7400/7800/9400/9800
Revision B
Operating Principles
Print Mechanism Components
149
2.2 Print Mechanism Components
The major electrical parts used in the printer mechanism of this printer are as shown
below. Hereafter, we will explain each printer mechanism focusing on these parts.
Table 2-1. Printer Mechanism Components
Part
Drive
voltage
Explanation
Refer
to
Print head
---
The number of nozzles: 180
Nozzle x 8 colors
Head thermistor
+3.3V
Incorporated in the print head
---
CR motor
+42V
DC motor
CR HP sensor
+3.3V
Transmission type photo-
interrupter
CR encoder sensor
+5V
Linear encoder (180LPI)
Ink mark sensor
(Detection in a direction parallel to
the Carriage movement)
+3.3V/+5V
Reflection type photo-interrupter
PG HP sensor
+3.3V
Transmission type photo-
interrupter
P EDGE sensor (Paper width
detection)
+3.3V/+5V
Reflection type photo-interrupter
Cutter Solenoid
+24V
DC solenoid
PF motor
+42V
DC motor
PF encoder sensor
+5V
Linear encoder (360LPI)
---
Paper suction fans
+24V
The number of DC blowers: 3
P Rear sensor
(Paper presence detection)
+3.3V/+5V
Reflection type photo-interrupter
P THICK 1/2 sensor
(Paper thickness)
+3.3V
Transmission type photo-
interrupter
Release sensor (I/C lever detection)
+3.3V
Leaf switch
---
Pump motor
+42V
DC motor
Ink pressure motor
+42V
Stepping motor
---
Regulator solenoid
+24V
DC solenoid
---
Ink cartridge
+5V, +3.3V CSIC
---
Maintenance Tank
+5V, +3.3V CSIC
Cover sensor
(Front Cover open/close detection)
+3.3V
Leaf switch
MAIN board
---
Printer control/drive circuit board
Radiator cooling fan
+5V
DC brushless fan
---
Take-up motor
+24V
DC motor
---
Power Supply Circuit Board
---
---
Table 2-1. Printer Mechanism Components
Part
Drive
voltage
Explanation
Refer
to
Summary of Contents for Stylus Pro 7400
Page 1: ...EPSONStylusPro7400 7800 9400 9800 Large Format Color Inkjet Printer SERVICE MANUAL SEIJ05002 ...
Page 10: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 147: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 170: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 207: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 292: ...C H A P T E R 5 ADJUSTMENT ...
Page 373: ...C H A P T E R 6 MAINTENANCE ...
Page 380: ...C H A P T E R 7 APPENDIX ...
Page 385: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 1 of 4 Revison G ...
Page 386: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 2 of 4 Revison F ...
Page 387: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 3 of 4 Revison F ...
Page 388: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 4 of 4 Revison E ...
Page 389: ...Model PX 7500 7500S 9500 9500S Board C594 SUB Sheet 1 Revison C ...
Page 390: ...Model PX 7500 7500S 9500 9500S Board C594 SUB B Sheet 1 Revison E ...
Page 391: ...Model PX 7500 7500S 9500 9500S Board C594 SUB C Sheet 1 Revison D ...
Page 392: ...Model PX 7500 7500S 9500 9500S Board C594 PNL Sheet 1 Revison D ...
Page 396: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 03 R ev 01 C594 E LE C 011 202 201 200 ...
Page 397: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 04 R ev 01 C594 E LE C 021 203 204 ...
Page 398: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 05 R ev 01 C594 POWE 011 300 301 302 ...
Page 403: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 10 R ev 01 C594 ME CH 051 700 701 X15 700 ...
Page 410: ...R ev 01 C595 E LE C 011 200 201 202 PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 03 ...
Page 411: ...PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 04 R ev 01 C595 E LE C 021 204 203 ...
Page 412: ...PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 05 R ev 01 C595 POWE 011 300 302 301 ...
Page 417: ...PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 10 R ev 01 C594 ME CH 051 701 X15 700 700 ...