Epson EPL-N2700 Specifications Page 65
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EPL-N2700 Revision A
Operating Principles Printer Mechanism Operating Principles 65
2.1.4.3 Paper Feed
The paper taken up by the paper take-up section is fed to the transfer
section after registration compensation.
Registration Compensation
To eliminate any paper slant (skew), registration compensation is
made by controlling the rotating timing of the paper take-up roller
and timing roller.
The taken up paper passes the timing roller sensor (PC2) and
reaches the timing roller. At this moment, the printer delays turning
timing of the timing roller for a moment. As a result, the leading edge
of the paper is aligned with the timing roller, eliminating any skew.
The leading edge of the paper will slack a little as shown in the
figure. Next, the timing clutch (CL1) is activated for feeding the
paper to the inside of the printer. At the same time, the paper take-
up roller turns for a moment to securely feed the paper.
Figure 2-17. Registration Compensation
Paper Feeding
When the timing clutch (CL1) is activated, torque is transmitted to
the timing roller from the transport motor (M2) as follows and the
paper is fed to the transfer section.
1) The transport motor (M2) turns counterclockwise.
→
2) The idle
gear turns clockwise. The timing clutch (CL1) turns ON.
→
3) The
idle gear turns counterclockwise.
→
4) The timing roller turns
clockwise.
→
Paper is fed.
The PC drum is driven by the I/C drive motor (M1). As the PC drum
turns, the transfer roller also turns. Accordingly, the paper fed by the
timing roller is pinched by the PC drum and transfer roller for feeding
to the fusing section.
Retry of paper feeding
If the timing roller front sensor does not detect the fed paper
within certain time, paper feeding is performed again.
Figure 2-18. Paper Feeding Mechanism
Transport Motor (M2)
Slack
Slack of paper
Timing Roller
Timing Roller Sensor (PC2)
[Registration compensation]
Paper Take-up
Roller
Paper
3
2
1
4
4108s031
PC Drum
Transfer Roller
Timing Roller
Transport Motor
(M2)
Timing
Clutch (CL1)
Paper Path
- 1
- PRECAUTIONS 3
- Safety Information 4
- Laser Beam 5
- Safety Component 5
- Warning/Caution Label 5
- Revision Status 7
- Contents 8
- Disassembly/Assembly 9
- Adjustment 9
- Maintenance 9
- Troubleshooting 9
- Appendix 10
- PRODUCT DESCRIPTION 11
- 1.1 Overview 12
- 1.2 Basic Specifications 13
- 1.2.2 Configuration 14
- 1.2.3 Engine Specifications 15
- 1.2.4 Paper Specifications 17
- 1.2.5 Process Specifications 20
- 1.2.6 Paper Specifications 20
- G uaranteed 21
- 4m m 4m m 21
- < Top View > 23
- 1.2.10 Safety Approval 26
- 1.2.11 Consumable Item 27
- 1.3.2 Parallel Interface 29
- 1.3.3 Serial Interface 29
- 1.3.4 Ethernet I/F 30
- 1.3.5 Type-B I/F 31
- 1.4 Panel Operation 32
- 1.4.2 Panel Settings 34
- Setting Menu 38
- <5-bin unit> 39
- <10-bin unit> 39
- 1.4.3 One-Touch Setting 41
- 1.4.4 Special Functions 41
- 1.4.5 Maintenance Mode 43
- 1.4.5.1 Engine Status Sheet 44
- 559 m m (D ) 48
- 534 m m (W ) 48
- 428 m m (H ) 48
- Top View 48
- Front View 48
- OPERATING PRINCIPLES 50
- (universal cassette) 52
- 2.1.2 Gear/Roller Location 53
- 2.1.3.1 Switches and Sensors 55
- 2.1.4 Paper Feeding Section 56
- Light is blocked: 57
- Output = H 57
- MP Cassette 57
- 2.1.4.2 Cassette 1 60
- 4108s031 65
- 2.1.6 Imaging Cartridge 68
- 2.1.6.2 Charging Section 69
- 2.1.6.3 Development Section 69
- 2.1.6.4 Transfer Section 71
- 2.1.6.5 Fusing Section 72
- 2.1.6.6 Paper Exit Section 74
- Cartridge 75
- 2.2.1 System Layout 76
- 2.2.1.2 Electrical Section 77
- TROUBLESHOOTING 79
- 3.1 Overview 80
- Troubleshooting Overview 81 81
- 3.1.1.2 Message Descriptions 82
- 3.1.2 Service-call Error 83
- Troubleshooting Overview 84 84
- 3.1.3 Adding on RAM 85
- 3.1.4 Troubleshooting 85
- Troubleshooting Overview 86 86
- DISASSEMBLY/ASSEMBLY 87
- W ARNING 88
- 4.1.3 Small Parts 89
- 4.2 Disassembly Procedure 91
- 4.2.1 ROM DIMM Removal 92
- 4.2.4 Transfer Section 95
- 4.2.5 Separating the Printer 99
- 4.2.6 Rear Cover Removal 100
- EPSON EPL-N2700 Rev. A 101
- 4.2.11 Top Cover Removal 102
- 4.2.17 Front Cover Removal 109
- 4.2.18 Control Panel Removal 109
- 4.2.21 Fusing Section 113
- 4.2.22 Drive Unit Removal 121
- ADJUSTMENT 133
- EPL-N2700 Revision A 134
- Adjustment 134 134
- MAINTENANCE 135
- 6.1 Overview 136
- Maintenance Overview 137 137
- APPENDIX 138
- 7.1 Connector Summary 139
- 7.2 Component Layout 141
- 7.3 Exploded Diagrams 142
- 7.3.2 Frames 144
- 7.3.3 Fussing Section (A) 146
- 7.3.4 Fusing Section (B) 148
- 7.3.5 Transport Section (A) 150
- 7.3.6 Transport Section (B) 152
- 7.3.7 Electrical Components 154
- 7.3.8 Paper Take-up Section 156
- 7.3.9 Drive Section 158
- 7.3.10 Paper Tray Unit 160
- 7.4 Circuit Diagrams 162
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