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Epson R260 Service Manual - Page 31

Overview, 3.1.1 Troubleshooting on Motors and Sensors, EPSON Stylus Photo R260/R265/R270 - stylus photo printer troubleshooting

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EPSON Stylus Photo R260/R265/R270, R360/R380/R390 3.1 Overview This chapter provides how to troubleshoot problems analyzing the cause based on the error messages displayed on the printer and the observed symptom. Identify and troubleshoot the problem referring to the tables on the following pages. When some parts need to be replaced, make sure to follow the procedure given in Chapter 4 and carry out required adjustments. If any abnormality is observed in motors or sensors, check the electrical value referring to the 3.1.1 "Troubleshooting on Motors and Sensors"(p.32). Start Identifying the error cause by the error message or observed symptom. Repair or replacement of parts or components Reassembly and adjustment End Figure 3-1. Troubleshooting Flowchart Revision B 3.1.1 Troubleshooting on Motors and Sensors The following tables show the normal electric values of each motor and sensor. When any abnormality is observed in motors and sensors, check their electric values and compare them with the values given in the tables to see if the motors or sensors are broken or not. Motor CR Motor PF Motor Table 3-1. Motor Resistance & Measuring Points Motor Connector Measuring Points Resistance R360/R380/R390: CN14 R260/R265/R270: CN14 Between Pin 1 and 2 22.7Ω ± 10% R360/R380/R390: CN15 R260/R265/R270: CN13 Between Pin 1 and 2 21.2Ω ± 10% Sensor PE Sensor Table 3-2. Sensor Checkpoints Sensor Connector Signal Level R360/R380/R390: CN8 R260/R265/R270: CN6 Between Pin 1-2 2.4V or more 0.4V or less Status No paper Paper exists APG Sensor R360/R380/R390: CN7 R260/R265/R270: CN7 Between Pin1- 2 2.4V or more 0.4V or less Within PG position Out of PG position CDR Guide Sensor R360/R380/R390: CN9 R260/R265/R270: CN4 Between Pin1- 2 Open: 2.4V or more Close: 0.4V or less CDR Guide lowered CDR Guide raised CD-R Tray Sensor R360/R380/R390: CN9 R260/R265/R270: CN4 Between Pin3- 4 Open: 2.4V or more Close: 0.4V or less CD-R Tray inserted No CD-R Tray Note : See 2.1.2 "Motors & Sensors"(p.25) for locations of the motors and sensors. Troubleshooting Overview 32

Section	Page
Cover Page-Service	1
Product description	7
1.1 Overview	8
1.1.1 Differences between R260/265/270 and R360/380/390	8
1.2 Basic Specifications	9
1.2.1 Printing	9
1.2.2 Interfaces	10
1.3 Standalone Printing (R360/R380/R390 only)	12
1.3.1 Direct Print of Still Images	12
1.3.2 Direct Print of Movie Frames	13
1.4 Backup Function (R360/R380/R390 only)	14
1.5 CD/DVD Print (R360/R380/R390 only)	17
1.6 Operation Panel	18
1.6.1 Operation Panel	18
1.6.2 Indicator (LED)	19
1.7 Specifications Common to the Models	20
1.7.1 Electric Specifications	20
1.7.2 Environmental Condition	20
1.7.3 Durability	20
1.7.4 Noise Level	20
1.7.5 Dimensions	21
Operating Principles	22
2.1 Overview	23
2.1.1 Printer Mechanism	23
2.1.2 Motors & Sensors	24
2.2 Electrical Circuit Operating Principles	25
2.2.1 Main Features	25
2.2.2 Components of Control Boards	26
2.2.3 Circuit Block Diagram	27
2.3 Banding Reduction System (BRS) / Paper Feed Amount Profile Correction (PFP)	29
Troubleshooting	30
3.1 Overview	31
3.1.1 Troubleshooting on Motors and Sensors	31
3.2 Error/Warning Indications	32
3.2.1 Error Indication Method	32
3.3 Troubleshooting by Error Message	35
3.3.1 Troubleshooting Problems with Error Messages	35
3.4 Troubleshooting by Symptom	47
3.4.1 Problems in Printing Operation	47
3.4.2 Power Problems	52
3.4.3 Ink-related Problems	52
3.4.4 Problems with Interfaces	54
Disassembly/Assembly	55
4.1 Overview	56
4.1.1 Precautions	56
4.1.2 Tools	57
4.1.3 Screws	57
4.1.4 Work Completion Checklist	58
4.1.5 Required Preparation before Disassembly	60
4.1.6 Orientation Definition	60
4.1.7 How to Unlock the Carriage	61
4.1.8 Sharp Metal Edges (Danger!)	61
4.1.9 Differences in Disassembly Procedure by Model	62
4.1.10 Disassembly/Assembly Procedures	63
4.2 Removing Exterior Parts/Components	64
4.2.1 Paper Support	64
4.2.2 Printer Cover	64
4.2.3 Front Cover	65
4.2.4 Right Housing / Left Housing / USB Housing	65
4.2.5 Upper Housing	67
4.2.6 Panel Unit	68
4.2.7 EMI Frame / Waste Ink Tray	69
4.2.8 Right Front Housing / Left Front Housing	71
4.2.9 Front Housing	72
4.3 Removing Control Boards	75
4.3.1 Removing the USB Board (R260/R265/R270 only)	75
4.3.2 Removing the Main Board Unit	77
4.3.3 Disassembling the Main Board Unit	79
4.3.4 Removing the Card Board (R360/R380/R390 only)	81
4.3.5 Disassembling the Panel Unit	82
4.3.6 Middle Housing	85
4.4 Removing the Printer Mechanism	86
4.4.1 Removing the Printer Mechanism	86
4.5 Disassembly of the Printer Mechanism	88
4.5.1 CR Scale	88
4.5.2 APG Unit	89
4.5.3 Printhead	90
4.5.4 Waste Ink Pad	93
4.5.5 P/S Assy	93
4.5.6 Stacker Assy	94
4.5.7 Ink System	96
4.5.8 CR Motor	98
4.5.9 EJ Frame Assy	99
4.5.10 PF Encoder / PF Scale / PF Motor	101
4.5.11 ASF Unit	103
4.5.12 CR Unit	104
4.5.13 Upper Paper Guide	107
4.5.14 Front Paper Guide Assy/APG Sensor Assy	108
4.5.15 CDR Guide Detection Assy	110
Adjustment	111
5.1 Adjustment Items and Overview	112
5.1.1 Servicing Adjustment Item List	112
5.1.2 Replacement Part Adjustment Items	115
5.2 Adjustment by Using Adjustment Program	117
5.2.1 Top Margin Adjustment	117
5.2.2 Head angular adjustment	117
5.2.3 Bi-D Adjustment	118
5.2.4 PW Adjustment/First Dot Adjustment	119
5.2.5 PF Adjustment	120
5.2.6 PG Adjustment	121
5.3 Banding Reduction System (BRS) Adjustment/ Paper Feed Amount Profile (PFP) Correction	123
5.3.1 Overview	123
5.3.2 Adjustment Procedure	124
Maintenance	128
6.1 Overview	129
6.1.1 Cleaning	129
6.1.2 Service Maintenance	129
6.1.3 Lubrication	130
Appendix	136
7.1 Exploded Diagram / Parts List	137

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EPSON Stylus Photo R260/R265/R270, R360/R380/R390

Revision B

Troubleshooting

Overview

3.1

Overview

This chapter provides how to troubleshoot problems analyzing the cause based on the

error messages displayed on the printer and the observed symptom. Identify and

troubleshoot the problem referring to the tables on the following pages. When some

parts need to be replaced, make sure to follow the procedure given in Chapter 4 and

carry out required adjustments. If any abnormality is observed in motors or sensors,

check the electrical value referring to the

3.1.1 "Troubleshooting on Motors and

Sensors"(p.32)

Figure 3-1.

Troubleshooting Flowchart

3.1.1

Troubleshooting on Motors and Sensors

The following tables show the normal electric values of each motor and sensor. When

any abnormality is observed in motors and sensors, check their electric values and

compare them with the values given in the tables to see if the motors or sensors are

broken or not.

Note :

See

2.1.2 "Motors & Sensors"(p.25)

for locations of the motors and sensors.

Start

Identifying the error cause by the error

message or observed symptom.

Repair or replacement of

parts or components

Reassembly and adjustment

End

Table 3-1.

Motor Resistance & Measuring Points

Motor

Motor Connector

Measuring Points

Resistance

CR Motor

R360/R380/R390: CN14

R260/R265/R270: CN14

Between Pin 1 and 2

22.7

Ω

10%

PF Motor

R360/R380/R390: CN15

R260/R265/R270: CN13

Between Pin 1 and 2

21.2

Ω

10%

Table 3-2.

Sensor Checkpoints

Sensor

Sensor Connector

Signal Level

Status

PE Sensor

R360/R380/R390: CN8

R260/R265/R270: CN6

Between Pin 1-2

2.4V or more

No paper

0.4V or less

Paper exists

APG Sensor

R360/R380/R390: CN7

R260/R265/R270: CN7

Between Pin1- 2

2.4V or more

Within PG position

0.4V or less

Out of PG position

CDR Guide Sensor

R360/R380/R390: CN9

R260/R265/R270: CN4

Between Pin1- 2

Open: 2.4V or more

CDR Guide lowered

Close: 0.4V or less

CDR Guide raised

CD-R Tray Sensor

R360/R380/R390: CN9

R260/R265/R270: CN4

Between Pin3- 4

Open: 2.4V or more

CD-R Tray inserted

Close: 0.4V or less

No CD-R Tray