EPSON Stylus Pro 7500
Revision A
Operating Principles
Print Mechanism Components
59
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
Description
Carriage components
B printhead
C printhead
+42VDC,
+28VDC,
-2VDC
B/C/M printhead,
LC/LM/Y printhead
Head thermistor
+5VDC
One in each printhead, B and C
CR motor
+42VDC
DC motor
CR_HP sensor
+5VDC
Photo interrupter
active= CR out of HP
interrupted = CR in HP
CR encoder sensor
+5VDC
Linear encoder
two channel A phase/B phase
Pump motor
(PG adjustment)
+42VDC,
+5VDC
4 phase 200 cycle HB type stepping
motor with internal encoder sensor
-also used for cleaning
PG (HD_SLID) sensor
+5VDC
Photo reflector
reflected = in PG HP
unreflected = out of PG HP
P_Edge sensor
+5VDC
Photo reflector
over threshold = paper exists
under threshold = no paper
Cutter solenoid
+28VDC
solenoid, cutter drive
Paper feed components
PF motor
+42VDC
DC Servo motor
PF encoder sensor
+5VDC
Rotary encoder
two channel A phase/B phase
in PF motor
Paper suction fans (x2)
+28VDC
DC motor fan
P_Front sensor
+5VDC
Photo reflector
over threshold = paper exists
under threshold = no paper
P_Rear sensor
+5VDC
Photo reflector
over threshold = paper exists
under threshold = no paper
P_Thick sensor
+5VDC
Photo interrupter
active= thick paper
interrupted = normal paper
Paper set lever position
sensor
+5VDC
Photo interrupter
active= thick paper
interrupted = normal paper
Ink delivery components
Pump motor
(cleaning)
+42VDC,
+5VDC
4 phase 200 cycle HB type stepping
motor with internal encoder sensor
also used for PG adjustment
Clwaing components
I/C sensors
(B/C/M/lc/lm/Y)
+5VDC
Microswitch 1/ slot
Open = no I/C
Closed = I/C installed
Table 2-1. Printer Mechanism Components (continued)
Part
Drive voltage
Description
Summary of Contents for Stylus Pro 7500
Page 1: ...EPSONStylusPRO7500 Color Large Format Inkjet Printer SEIJ00005 SERVICE MANUAL ...
Page 6: ...Revision Status Revision Issued Date Description Rev A August 31 2000 First Release ...
Page 10: ...C H A P T E R PRODUCTDESCRIPTION ...
Page 57: ...C H A P T E R OPERATINGPRINCIPLES ...
Page 75: ...C H A P T E R TROUBLESHOOTING ...
Page 95: ...C H A P T E R DISASSEMBLY ASSEMBLY ...
Page 169: ...C H A P T E R 0 ADJUSTMENT ...
Page 192: ...PSON Stylus Pro 7500 Revision A djustment Adjustment Steps 192 Figure 5 13 Adjustment Menu ...
Page 235: ...C H A P T E R MAINTENANCE ...
Page 241: ...C H A P T E R APPENDIX ...
Page 258: ...PSON Stylus Pro 7500 Revision A ppendix Exploded View Diagram 258 Figure 7 2 Frame Assembly ...
Page 260: ...PSON Stylus Pro 7500 Revision A ppendix Exploded View Diagram 260 Figure 7 4 Head Assembly ...
Page 262: ...PSON Stylus Pro 7500 Revision A ppendix Exploded View Diagram 262 Figure 7 6 Frame Accessory ...
Page 265: ...PSON Stylus Pro 7500 Revision A ppendix Exploded View Diagram 265 Figure 7 9 Cable Guide ...
Page 267: ...PSON Stylus Pro 7500 Revision A ppendix Exploded View Diagram 267 Figure 7 11 Cover Assembly ...
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