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Epson 680Pro Service Manual - Page 54

Table 3-8. Paper jam error indication, Detail phenomenon, Check point, Remedy

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EPSON Stylus COLOR 680/777/777i Table 3-8. Paper jam error indication Step No. Detail phenomenon Paper is not ejected 1 completely and jammed around the Paper eject frame. Check point Remedy • Check if the star wheel assembly is assembled in the Paper eject frame. Star wheel assy • Remove the jammed paper and assemble the Star wheel assembly in the Paper eject frame completely. If the hook portion of the Star wheel assembly is broken, replace the Star wheel assembly with new one. 2 Ditto If it is no problem, proceed the next step. • Check if the Paper eject roller is rotating correctly. Paper eject roller • Set the tip of the Spur gear 25.6 to the Combination gear 11.6, 36.8 and assemble it correctly. Spur gear 25.6 If it is no problem, proceed the next step. Revision B Table 3-9. Paper jam error indication Step No. Detail phenomenon Check point Remedy 1. Check if the Front 1. Assemble the Front paper guide is floating paper guide front to the from the assemble suitable portion and position. confirm the PF 2. Check if there is any damage around the rear edge of the each grounding spring is securing the Front paper guide. rib on the Front paper guide. PF grounding spring The paper is jammed 3 around the Front paper guide. Front Paper guide Front paper guide 2. Replace the Front paper guide with new one. If it is no problem, proceed the next step. • Check if the Torsion • If the Torsion spring spring 0.22 comes off 0.22 is not set on the Paper is loaded on the both PE sensor correct position, set it correctly from ASF. lever. correctly. If any paper But, after complete the Tension spring dust is placed around the print job, paper jam 0.22 PE sensor lever, remove indicated on the screen it. 4 without any paper jam. If you send the new print job in this condition, the General error is indicated on the screen. PE sensor lever • If it is no problem, proceed the next step. Troubleshooting Troubleshooting with LED Error Indications 54

Section	Page
PRODUCT DESCRIPTION	9
1.1 FEATURES	10
1.2 SPECIFICATIONS	11
1.2.1 Physical Specification	11
1.2.2 Printing Specification	11
1.2.3 Paper Feeding	12
1.2.4 Input Data Buffer	12
1.2.5 Electric Specification	12
1.2.6 Environmental Condition	13
1.2.7 Reliability	13
1.2.8 Safety Approvals	13
1.2.9 Acoustic Noise	13
1.2.10 CE Marking	13
1.3 INTERFACE	14
1.3.1 Parallel Interface (Forward Channel)	14
1.3.2 Parallel Interface (Reserve Channel)	17
1.3.3 USB Interface	18
1.3.4 Prevention of Data Transfer Time-out	19
1.3.5 Interface Selection	19
1.3.6 IEEE1284.4 Protocol	19
1.4 OPERATOR CONTROLS	20
1.4.1 Operating Switch	20
1.4.2 Control Panel	20
1.4.2.1 Switches	20
1.4.2.2 Indicators	20
1.4.3 Panel Functions	21
1.4.4 Printer Condition and Panel Status	22
1.4.5 Printer Initialization	22
1.4.6 Errors	23
1.5 PAPER	24
1.5.1 Paper Handling	24
1.5.2 Paper Specification	24
1.5.2.1 Cut Sheet	24
1.5.2.2 Transparency, Glossy Paper	24
1.5.2.3 Envelope	24
1.5.2.4 Index Card	25
1.5.3 Printing Area	26
1.5.3.1 Cut Sheet	26
1.5.3.2 Envelopes	27
1.6 INK CARTRIDGE	28
1.6.1 Black Ink Cartridge	28
1.6.2 Color Ink Cartridge	28
Operating Principles	29
2.1 Overview	30
2.1.1 Printer Mechanism	30
2.1.2 Printhead	31
2.1.2.1 Printing Process	32
2.1.2.2 Printing Method	32
2.1.3 Carriage Mechanism	33
2.1.4 Paper Feeding Mechanism	34
2.1.5 Paper Loading Mechanism (ASF Unit)	35
2.1.6 Ink System Mechanism	38
2.1.6.1 Pump Unit & Wiper mechanism	38
2.1.6.2 Capping Mechanism	39
2.2 Electrical Circuit Operating Principles	40
2.2.1 C383 PSB/PSE board	40
2.2.2 C383 MAIN Board	43
2.2.2.1 Main elements	44
2.2.2.2 Printhead Driver Circuit	45
2.2.2.3 PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit	46
2.2.2.4 CR Motor Driver Circuit	46
2.2.2.5 Reset Circuit	47
2.2.2.6 EEPROM Control Circuit	47
2.2.2.7 Sensor Circuit	48
Troubleshooting	49
3.1 Overview	50
3.2 Troubleshooting with LED Error Indications	51
Disassembly and Assembly	61
4.1 Overview	62
4.1.1 Precautions	62
4.1.2 Tools	63
4.1.3 Work Completion Check	64
4.2 Disassembly	65
4.2.1 Housing removal	66
4.2.2 Operation Panel removal	67
4.2.3 Printhead removal	68
4.2.4 CR motor removal	71
4.2.5 Waste drain ink pad unit removal	73
4.2.6 Circuit board removal	75
4.2.7 LD Roller removal	79
4.2.8 HP/PE Sensor removal	83
4.2.9 Ink system unit removal (Cap & Pump unit )	85
4.2.10 Paper Eject Roller removal	87
4.2.11 PF motor removal	89
4.2.12 CR unit removal	91
4.2.13 Paper feed roller removal	94
4.2.14 Disassembling ASF frame unit	97
Adjustment	100
5.1 Overview	101
5.1.1 Required Adjustment	101
5.1.2 Adjustment Program feature	102
5.1.3 Adjustment Program Installation Procedure	103
5.1.4 Adjustment Program Initial Setting menu	103
5.1.5 Head ID Input	103
5.1.6 Bi-D Adjustment	105
5.1.7 USB ID input	107
5.1.8 Head Cleaning Operation	109
5.1.9 Initial Ink Charge Operation	110
5.1.10 Refurbishment for DOA	111
5.1.11 Protection Counter Check/Reset	112
5.1.12 Check pattern printing	114
5.1.13 EEPROM check function	115
5.1.14 CSIC Information	116
Maintenance	117
6.1 Overview	118
6.1.1 Cleaning	118
6.1.2 Service Maintenance	119
6.1.3 Lubrication	119
Appendix	123
7.1 Connector Summary	124
7.1.1 Major Component Unit	124
7.1.2 EEPROM Address Map	127
7.2 Component Layout	131
7.3 Exploded Diagram	133
7.4 Parts List	138

Match case Limit results 1 per page

EPSON Stylus COLOR 680/777/777i

Revision B

Troubleshooting

Troubleshooting with LED Error Indications

Table 3-8. Paper jam error indication

Step

No.

Detail phenomenon

Check point

Remedy

Paper is not ejected

completely and

jammed around the

Paper eject frame.

•

Check if the star wheel

assembly is assembled

in the Paper eject

frame.

If it is no problem,

proceed the next step.

•

Remove the jammed

paper and assemble the

Star wheel assembly in

the Paper eject frame

completely.

If the hook portion of the

Star wheel assembly is

broken, replace the Star

wheel assembly with

new one.

Ditto

•

Check if the Paper

eject roller is rotating

correctly.

If it is no problem,

proceed the next step.

•

Set the tip of the Spur

gear 25.6 to the

Combination gear 11.6,

36.8 and assemble it

correctly.

Star wheel assy

Spur gear 25.6

Paper eject roller

Table 3-9. Paper jam error indication

Step

No.

Detail phenomenon

Check point

Remedy

The paper is jammed

around the Front paper

guide.

1. Check if the Front

paper guide is floating

from the assemble

position.

2. Check if there is any

damage around the

rear edge of the each

rib on the Front paper

guide.

If it is no problem,

proceed the next step.

1. Assemble the Front

paper guide front to the

suitable portion and

confirm the PF

grounding spring is

securing the Front paper

guide.

2. Replace the Front paper

guide with new one.

Paper is loaded

correctly from ASF.

But, after complete the

print job, paper jam

indicated on the screen

without any paper jam.

If you send the new

print job in this

condition, the General

error is indicated on

the screen.

•

Check if the Torsion

spring 0.22 comes off

on the both PE sensor

lever.

•

If the Torsion spring

0.22 is not set on the

correct position, set it

correctly. If any paper

dust is placed around the

PE sensor lever, remove

it.

•

If it is no problem,

proceed the next step.

Front paper guide

PF grounding spring

Front Paper guide

Tension spring

0.22

PE sensor lever