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Outline of Power Supply Circuit Board

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EPSON Stylus Pro 7600/9600 Revision A 2.4 Outline of Power Supply Circuit Board The 100 V AC power from the wall outlet is supplied via the power cable, an accessory of Stylus Pro 7600/9600, into the Inlet of the printer and to the Power Supply Circuit Board. The power switch constitutes a secondary power switch system. The secondary power switch system operates as follows: even with the power switch turned off, the Power Supply Circuit Board is operating by a slight power as long as the power cable is connected. C A U T IO N Even after the power switch is turned off, the Power Supply Circuit Board does not stop operating immediately, but power is kept on until the ink system ending sequence is completed. Do not disconnect the power cable or do not shut off power by turning off any power switch other than that on the printer. The Power Supply Circuit Board is equipped with a fuse for overcurrent protection. Table 2-9 below indicates the rating of the fuse: Table 2-9. Fuse Rating Input Voltage Range [V AC] Fuse Rating 100 +/- 10% 125 V AC / 6.3A There are three control signals between the C472MAIN Board and the Power Supply Circuit Board. Table below describes details of the control signals: Table 2-10. Control Signals between C472MAIN Board and Power Supply Board Signal Name Function REM_ON (MAIN→ Power Supply) Operating Turned ON/OFF by C472MAIN Board. • When these terminals are shorted, the drive system power supplies 28 VDC and 42 VDC are active. Off • When these terminals are open (= L), the drive system power supplies 28 VDC and 42 VDC are 0 VDC. • The 5 VDC power is not controlled with these terminals. AC_OFF (MAIN← Power Supply) Operating (= H) When each output from the Power Supply Circuit Board has become inactive because of turning off of the power switch or when the input voltage has dropped below the rated voltage value, "H" signal is sent to the C472MAIN Board. POW_ON/OFF (Panel / MAIN→Power Supply) Off (= L) Operating Off The power switch is turned on and the Power Supply Circuit Board Unit starts operating so that each output becomes active. "H" signal is sent to the C472MAIN Board. Connected to the power switch on the Panel Unit. • These terminals are shorted when the switch is ON. The Power Supply Circuit Board becomes active. • These terminals are open when the switch is OFF.The Power Supply Unit keeps operating for about ten and several seconds to a few minutes and then turns off. Operating Principles Outline of Power Supply Circuit Board 120

Section	Page
EPSON Stylus Pro 7600/9600	1
Contents	6
Product Description	11
1.1 Product Description	12
1.1.1 Features	12
1.1.2 Differences between Stylus Pro 7600 and Stylus Pro 9600	13
1.2 Basic Specifications	14
1.2.1 Print Specifications	14
1.2.2 Character Specification	14
1.2.3 Control Code	14
1.2.4 Paper Feed	14
1.2.5 Paper Specifications	15
1.2.5.1 Roll Paper	15
1.2.5.2 Sheet	16
1.2.5.3 Special Paper	18
1.2.6 Mechanism Specifications	21
1.2.6.1 Printable Area	21
1.2.6.2 Paper Set Lever	22
1.2.6.3 Cutting Specification	22
1.2.6.4 Acoustic Noise	23
1.2.7 Electrical Specifications (TBD)	23
1.2.8 Reliability	23
1.2.8.1 Total Print Volume	23
1.2.8.2 Print Head Life	23
1.2.8.3 Maintenance Tank Life	23
1.2.8.4 Cutter Life average	23
1.2.8.5 Maintenance Parts (TBD)	23
1.2.9 Ambient Conditions	24
1.2.9.1 Temperature/Humidity	24
1.2.9.2 Vibration	24
1.2.9.3 Shock	24
1.2.9.4 Surrounding Space	25
1.2.10 Overall Dimensions	26
1.2.11 Accessories	28
1.2.11.1 Accessories and Options for Stylus Pro 7600	28
1.2.11.2 Accessories and Options for Stylus Pro 9600	29
1.3 External View and Parts Names	30
1.4 Operating Panel	31
1.4.1 Buttons and Functions	31
1.4.1.1 Functions of Buttons	31
1.4.1.2 LEDs	32
1.4.2 Indications on the Panel	33
1.4.2.1 lED Indications in Normal Mode	33
1.4.2.2 LCD Indications in Normal Mode	34
1.4.3 SelecType	35
1.4.3.1 Outline	35
1.4.3.2 Panel Setting Menu Item	36
1.4.3.3 PG Setting	40
1.4.3.4 Page Lines	41
1.4.3.5 Interface Select	41
1.4.3.6 Code Page Switching	41
1.4.3.7 Roll Paper Margin	41
1.4.3.8 Detect Paper Width	42
1.4.3.9 Detect Skew Error	42
1.4.3.10 Job Timeout Setting	42
1.4.3.11 No margin print setting	43
1.4.3.12 Cutter position adjustment	44
1.4.3.13 Auto margin refresh	44
1.4.3.14 Panel Setup Value Initialization	45
1.4.3.15 Nozzle Check Pattern Printing	45
1.4.3.16 Status Printing	46
1.4.3.17 Job Information Print	48
1.4.3.18 Firmware version	49
1.4.3.19 Printable pages of each ink cartridge	49
1.4.3.20 Ink remaining	49
1.4.3.21 Maintenance tank count	49
1.4.3.22 Use counter	50
1.4.3.23 Clear use counter	50
1.4.3.24 Job history display	50
1.4.3.25 Job history clear	50
1.4.3.26 Total prints	50
1.4.3.27 Consumables life	51
1.4.3.28 Suction adjustment for paper setting and indicator display	53
1.4.3.29 Ink remaining indicator display	54
1.4.3.30 Job information	55
1.4.3.31 User Paper Setting	56
1.4.3.32 Power cleaning	60
1.4.3.33 Cutter Blade Replacement	60
1.4.3.34 Gap Adjustment (Bi-D Adjustment, Uni-D Adjustment)	60
1.4.3.35 BK ink cartridge replacement	64
1.4.4 Maintenance Mode 1	66
1.4.5 Maintenance Mode 2	70
1.4.6 Paper feeding adjustment conversion table	84
1.4.7 Firmware Reload	85
1.4.7.1 Reload from ROM-DIMM	85
1.4.7.2 Reload with F/W DOWNLOAD mode	85
1.4.7.3 Installation with service utility (F/W Update function)	85
1.4.7.4 Compulsory start F/W DOWNLOAD mode	85
1.4.8 Function to prevent irregular printing	86
1.4.9 Initialization	86
1.4.9.1 Hardware initialization	86
1.4.9.2 Software initialization	86
1.4.9.3 Panel initialization	86
1.4.10 Default Setup Values	87
1.4.10.1 Initial Setting for Operation	87
1.4.10.2 Ink Type Setting	87
1.4.10.3 MW Printing Adjustment / Setting Values and Printing Modes	88
1.4.10.4 Printing Mode Combination Table	89
1.5 Controller	90
1.6 Interfaces	91
1.6.1 Parallel Interface	91
1.6.1.1 Compatibility Mode	91
1.6.1.2 Nibble Mode	93
1.6.1.3 ECP Mode	94
1.6.2 USB interface	95
1.6.3 Optional Interface	96
1.6.4 Supplements	97
1.7 Optional Units and Consumables	98
1.7.1 Ink Cartridge	98
1.7.2 Cleaning cartridge	99
1.7.3 Draining cartridge	99
1.7.4 Maintenance Tank	99
Operating Principles	100
2.1 Overview	101
2.2 Print Mechanism Components	102
2.2.1 Carriage (CR) Mechanism	103
2.2.2 Paper Feed Assembly	113
2.2.3 Cleaning Mechanism	115
2.2.4 Ink Supply Mechanism	117
2.2.5 Others	118
2.3 Outline of Control Circuit Board	119
2.4 Outline of Power Supply Circuit Board	120
Troubleshooting	121
3.1 Outline	122
3.1.1 Introduction	122
3.2 Error Display	123
3.2.1 Errors	123
3.2.1.1 Error Indications on LCD	123
3.2.1.2 Warning Indications on LCD	124
3.2.1.3 Service Call (Fatal) Errors	125
3.2.2 Errors	126
3.2.2.1 Paper End/End of roll	126
3.2.2.2 Wrong paper source is selected on panel	126
3.2.2.3 Paper set lever is released during operation	126
3.2.2.4 Paper set lever is released	127
3.2.2.5 Paper Jam	127
3.2.2.6 Front Cover Open	127
3.2.2.7 Type-B I/F error	128
3.2.2.8 Paper cutting error	128
3.2.2.9 Paper Not Straight	128
3.2.2.10 Paper check error/Paper eject error (sheet)	129
3.2.2.11 Paper is too thick for cleaning	129
3.2.2.12 Not enough ink for cleaning	129
3.2.2.13 Ink-related Errors	130
3.2.2.14 Defective ink cartridge	130
3.2.2.15 Ink lever released	130
3.2.2.16 Illegal ink cartridge	131
3.2.2.17 Maintenance tank full	131
3.2.2.18 No Maintenance tank	131
3.2.2.19 Wrong IK designation	131
3.2.2.20 Fatal Error	131
3.2.3 Troubleshooting for Warning	132
3.2.3.1 Ink Low	132
3.2.3.2 Maintenance tank full warning	132
3.2.3.3 Maintenance request	132
3.2.4 Troubleshooting for Service Call Errors	134
3.2.4.1 CR motor life (00000101)	134
3.2.4.2 PF motor encoder check error (00010000)	135
3.2.4.3 PF Motor out of step (00010001)	135
3.2.4.4 PF motor overcurrent (00010002)	136
3.2.4.5 PF motor in-position time out (00010003)	136
3.2.4.6 CR motor encoder check error (00010004)	137
3.2.4.7 CR motor out of step (00010005)	137
3.2.4.8 CR motor overcurrent (00010006)	138
3.2.4.9 CR motor in-position time-out (00010007)	138
3.2.4.10 Servo interrupt watchdog time-out (00010008)	139
3.2.4.11 System interrupt watchdog time-out (00010009)	139
3.2.4.12 CR home position sensor error (0001000A)	139
3.2.4.13 PF home position sensor error (0001000B)	139
3.2.4.14 Head slide (PG) home position sensor error (0001000C)	140
3.2.4.15 CR motor PWM output faulty (0001000F)	140
3.2.4.16 PF motor PWM output faulty (00010010)	141
3.2.4.17 Head driver (TG) temperature error (0001001B)	141
3.2.4.18 CR servo parameter error (0001001D)	142
3.2.4.19 PF servo parameter error (0001001E)	142
3.2.4.20 CSIC reed/right error (00010020)	143
3.2.4.21 Ink type error (setting on printer body side) (00010022)	143
3.2.4.22 RTC analysis error (00010023)	143
3.2.4.23 CSIC ROM communication error (00010025)	144
3.2.4.24 RTC communication error (00010026)	144
3.2.4.25 Head error (00010028)	144
3.2.4.26 Unidentified NMI (00010029)	144
3.2.4.27 CR ASIC ECU error (0001002A)	144
3.2.4.28 PF ASIC ECU error (0001002B)	144
3.2.4.29 NVRAM error (00020000)	144
3.2.4.30 SDRAM error (00020002)	145
3.2.4.31 BOOT program SUM error (00020003)	145
3.2.4.32 Flash memory SUM error (00020009)	145
3.2.4.33 Program load error (0002000A)	145
3.2.4.34 Internal memory shortage error (0002000B)	145
3.2.4.35 Review error (0002000C)	146
3.2.4.36 CPU address error (load misalignment) (100000E0)	146
3.2.4.37 CPU address error (storage misalignment) (10000100)	146
3.2.4.38 CPU reserve command code exception error (10000180)	146
3.2.4.39 CPU slot illegal command exception error (100001A0)	146
3.2.4.40 CPU DMA address error (100005C0)	146
3.2.4.41 CPU error (10000xxx)	146
3.3 Troubleshooting Based on Your Printout	147
3.3.1 Dot Missing	147
3.3.2 Uneven Printing/Poor Resolution	148
3.3.3 Smudged or Marred Printout (Front)	148
3.3.4 Smudged or Marred Printout (Reverse side)	149
3.3.5 White or Black Banding in the carriage running direction	149
3.3.6 Banding in the paper feed direction	150
Disassembly & Assembly	151
4.1 Summary	152
4.1.1 Precautions	152
4.1.2 Tools	155
4.1.3 Screw List	155
4.1.4 Disassembly Flow	156
4.2 Removing the Panel Unit and Housing	158
4.2.1 Panel Unit	159
4.2.2 R Side Cover	160
4.2.3 L Side Cover	163
4.2.4 I/H Cover	164
4.2.5 H Top Cover	165
4.2.6 Rear Cover	166
4.2.7 Paper Guide L2	168
4.2.8 Roll Paper Cover	169
4.2.9 Front Cover	170
4.3 Disassembly and Assembly of Carriage (CR) Mechanism	171
4.3.1 Print Head	171
4.3.2 Damper ASSY	173
4.3.3 CR Board ASSY	174
4.3.4 Cutter Section	175
4.3.4.1 Cutter Holder ASSY	175
4.3.4.2 Cutter Solenoid	177
4.3.5 CR Encoder Sensor ASSY	178
4.3.6 P_EGDE Sensor ASSY	179
4.3.7 CR Motor ASSY	180
4.3.8 HEAD_SLIDE Sensor ASSY	182
4.3.9 CR_HP Sensor ASSY	183
4.3.10 CR Encoder Scale (Timing Fence)	184
4.4 Disassembly and Assembly of Paper Feed Mechanism	185
4.4.1 PF Motor	185
4.4.2 PF Encoder Sensor ASSY	186
4.4.3 Cautions when replacing the PF Loop Scale	187
4.4.3.1 Assembly Procedure for the PF Loop Scale ASSY	187
4.4.3.2 PF Loop Scale ASSY Affixing Procedure	188
4.4.4 Suction Fans	189
4.4.5 P_THICK Sensor/P_THICK Sensor_0.3 ASSY	190
4.4.6 P_REAR Sensor ASSY	191
4.5 Disassembly and Assembly of Ink Supply Mechanism	192
4.5.1 C472_SUB-B Board	192
4.5.2 I/H (Ink Holder) ASSY	193
4.5.3 Cover Sensor ASSY	197
4.6 Disassembly and Assembly of Cleaning Mechanism	198
4.6.1 Maintenance ASSY Removal	199
4.6.2 Pump Motor ASSY	200
4.6.3 Cap ASSY	200
4.6.4 Pump ASSY	201
4.6.5 Cleaner Head (Wiper)	203
4.6.6 Flushing Box ASSY	204
4.7 Disassembly and Assembly of Circuit Boards	205
4.7.1 Power Supply Board	205
4.7.2 AC Inlet	206
4.7.3 MAIN Board (C472 MAIN)	207
4.7.4 DIP Switch and Jumper Setting at Factory before Shipment	209
Adjustment	210
5.1 Overview	211
5.1.1 Cautions	211
5.1.2 Adjustment Tools	211
5.1.3 Procedure for Adjustment Work	212
5.1.4 Adjustment Items	212
5.1.4.1 Print Head Adjustment	212
5.1.4.2 Main Board Adjustment	213
5.1.4.3 CR Motor Adjustment	214
5.1.4.4 PF Motor Adjustment	214
5.1.4.5 P_EDGE Sensor ASSY Adjustment	215
5.1.4.6 P_REAR Sensor ASSY Adjustment	215
5.1.4.7 P_THICK/P_THICK_0.3 Sensor ASSY Adjustment	215
5.1.4.8 CR Encoder Sensor ASSY Adjustment	215
5.1.4.9 Cover Sensor ASSY Adjustment	216
5.1.4.10 PF Encoder Sensor ASSY Adjustment	216
5.1.4.11 Cutter Solenoid ASSY or Paper Guide L Adjustment	217
5.1.4.12 Damper ASSY Adjustment	217
5.1.4.13 Release Sensor (I/H Lever) Adjustment	217
5.1.4.14 Battery	217
5.1.5 Parameter Backup	218
5.1.5.1 Parameter Backup Procedure	218
5.1.5.2 Work Procedure	218
5.1.5.3 Others	218
5.1.6 Firmware Reinstallation	219
5.1.6.1 Firmware Installation through ROM-DIMM	219
5.1.6.2 Firmware Installation through Interface	219
5.2 Self-diagnostic Function	220
5.2.1 Overview	220
5.2.1.1 How to Start Self-diagnostic Function	220
5.2.1.2 Functions of Keys during Self-diagnosis	220
5.2.1.3 Top Menu	221
5.2.2 Test	222
5.2.2.1 Version	223
5.2.2.2 Control Panel	223
5.2.2.3 Sensors	224
5.2.2.4 Encoder	225
5.2.2.5 Fan	225
5.2.2.6 Record	226
5.2.2.7 CSIC	227
5.2.2.8 Actuator	229
5.2.2.9 Actuator 2	229
5.2.3 Adjustment	230
5.2.3.1 Rear AD Adjustment	231
5.2.3.2 Edge AD Adjustment	232
5.2.3.3 Input Rank	233
5.2.3.4 Write D/A Value	236
5.2.3.5 Check Nozzle	237
5.2.3.6 Check Skew	238
5.2.3.7 Feed Correction + T&B Adjustment	239
5.2.3.8 Top & Bottom Adjustment	242
5.2.3.9 Rear Sensor Position	243
5.2.3.10 Platen Position (Sponge Position) Adjustment	244
5.2.3.11 Platen Position Checking	245
5.2.3.12 Head Slant Checking	246
5.2.3.13 Round Trip Print Position Adjustment (Bi-D Adjustment)	248
5.2.3.14 Parameter Copying	251
5.2.3.15 Bi-D2 Adjustment (PG=0.7mm)	251
5.2.3.16 Bi-D3 Adjustment (PG=2.1mm)	251
5.2.3.17 Round Trip Print Position (Bi-D Adjustment) Checking	252
5.2.3.18 Head Gap Adjustment (Uni-D Adjustment)	253
5.2.3.19 Test Pattern Printing	255
5.2.3.20 Clean Head	256
5.2.3.21 Counter Clear	257
5.2.4 Cleaning	259
5.2.5 Print	259
5.2.6 Parameter	260
5.2.6.1 Parameter Initialize	261
5.3 Mechanism Adjustment	263
5.3.1 Overview	263
5.3.2 CR Timing Belt Tension Adjustment	263
5.3.3 PF Timing Belt Tension Adjustment	264
5.3.4 P_THICK_0.3/P_THICK Sensor Mounting Plate Position Adjustment	265
5.3.5 Cover Sensor ASSY Mounting Position Adjustment	267
5.3.6 CR Encoder Sensor Mounting Position Adjustment	268
5.3.7 Cutter Positioning Adjustment	269
5.3.7.1 Paper Cutting Position Check	271
5.3.8 PF Encoder Sensor Installation Position Adjustment	272
5.3.9 USB ID Writing	273
Maintenance	274
6.1 Overview	275
6.1.1 Periodic Maintenance Items and Product Life Information	276
6.1.2 Important Maintenance Items During Service Operations	279
6.2 Lubrication and Glue	280
6.2.1 Lubricating the CR Guide Rail	280
Appendix	281
7.1 Connectors	282
7.2 Component Layout	285
7.3 Circuit Diagrams	286
7.4 Exploded Diagrams	292
7.5 ASP List (Parts List)	317
7.5.1 ASP List for Stylus Pro 7600	317
7.5.2 ASP List for Stylus Pro 9600	320

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EPSON Stylus Pro 7600/9600

Revision A

Operating Principles

Outline of Power Supply Circuit Board

120

2.4

Outline of Power Supply Circuit Board

The 100 V AC power from the wall outlet is supplied via the power cable, an accessory

of Stylus Pro 7600/9600, into the Inlet of the printer and to the Power Supply Circuit

Board.

The power switch constitutes a secondary power switch system. The secondary power

switch system operates as follows: even with the power switch turned off, the Power

Supply Circuit Board is operating by a slight power as long as the power cable is

connected.

The Power Supply Circuit Board is equipped with a fuse for overcurrent protection.

Table 2-9 below indicates the rating of the fuse:

There are three control signals between the C472MAIN Board and the Power Supply

Circuit Board. Table below describes details of the control signals:

Even after the power switch is turned off, the Power Supply Circuit

Board does not stop operating immediately, but power is kept on

until the ink system ending sequence is completed.

Do not disconnect the power cable or do not shut off power by

turning off any power switch other than that on the printer.

Table 2-9.

Fuse Rating

Input Voltage Range [V AC]

Fuse Rating

100 +/– 10%

125 V AC / 6.3A

Table 2-10.

Control Signals between C472MAIN Board and Power Supply Board

Signal Name

Function

REM_ON

(MAIN

→

Power Supply)

Operating

Turned ON/OFF by C472MAIN Board.

•

When these terminals are shorted, the drive system

power supplies 28 VDC and 42 VDC are active.

Off

•

When these terminals are open (= L), the drive

system power supplies 28 VDC and 42 VDC are 0

VDC.

•

The 5 VDC power is not controlled with these

terminals.

AC_OFF

(MAIN

←

Power Supply)

Operating

(= H)

When each output from the Power Supply Circuit

Board has become inactive because of turning off of

the power switch or when the input voltage has

dropped below the rated voltage value, “H” signal is

sent to the C472MAIN Board.

Off

(= L)

The power switch is turned on and the Power Supply

Circuit Board Unit starts operating so that each output

becomes active.

“H” signal is sent to the C472MAIN Board.

POW_ON/OFF

(Panel /

MAIN

→

Power

Supply)

Operating

Connected to the power switch on the Panel Unit.

•

These terminals are shorted when the switch is ON.

The Power Supply Circuit Board becomes active.

Off

•

These terminals are open when the switch is

OFF.The Power Supply Unit keeps operating for

about ten and several seconds to a few minutes and

then turns off.