Epson L210 Service Manual

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CHAPTER4
APPENDIX 
						

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Appendix Power-On Sequence 42 L200/L201/L100/L101Revision A
4.1  Power-On Sequence
This section describes the power-on sequences for this product. The preconditions are as follows.
†Condition
„
Completing ink charge.
„No paper on the paper path.
„The Printhead is capped with the Cap of the Ink System.
„The Carriage is locked by the CR Lock.
Table 4-1.  Operation of the power-on sequence
Operation*1Carriage/PF roller 
movement and position*2
1. Checking for waste ink overflow
1-1.Reads out the protection counter value to check waste ink overflow.
2. Seeking the home position
2-1.The carriage moves to the 80-digit side slowly and confirms it touches the CR lock.
2-2.The carriage moves to the 0-digit side slowly to leave from the CR lock.
2-3.Checks if paper does not exist with the PE sensor and the PF Motor rotates clockwise to release the CR lock.
2-4.The carriage moves to the 80-digit side slowly and confirms that the CR lock is released.
2-5.The carriage quickly moves to the 80-digit side by the Left Frame.
2-6.After the carriage continuously moves to the 80-digit side slowly and confirms it touches the Left Frame, sets the 
distance from the home position to the Left Frame as the theoretical value.
2-7.The carriage quickly moves to the 0-digit side and slows down as it gets to its home position, and stops there.
3. Low temperature operation sequence*3
3-1.The carriage moves back and forth between the 0-digit side and the 80-digit side for two times.
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Appendix Power-On Sequence 43 L200/L201/L100/L101Revision A
Note *1 : The rotation direction of the PF Motor is as follows.
Clockwise direction : Paper is fed normally
Counterclockwise direction : Paper is fed backward
*2 : The conditions of the CR lock are as follows.
Red: CR lock is set
White: CR lock is released
*3 : Executed when the detected temperature is under 5 
oC (41oF) by the thermistor on the Printhead.
*4 : The empty sanction operation may occur depending on the situation.
4. Detecting ink cartridge and initializing ink system* 4
4-1.The carriage moves to the 80-digit side for IES detection.
4-2.The carriage returns to its home position.
4-3.The carriage slowly moves to the CR lock set position.
4-4.The PF Motor rotates clockwise.
4-5.The PF Motor rotates counterclockwise and sets the CR lock.
4-6.The carriage slowly returns to its home position.
Table 4-1.  Operation of the power-on sequence
Operation*1Carriage/PF roller 
movement and position*2 
						

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Appendix Connector Diagram 44 L200/L201/L100/L101Revision A
4.2  Connector Diagram
Cable connections of this printer are shown below.
Figure 4-1. Connector Diagram
PS Board
Panel Board
Panel Board
J301
J3 J2J5
J8
J7 J11 J10J9
J4
Scanner Unit
Panel Unit CIS Module
J201
J201
PF Motor Main Board
PF EncoderScanner Motor Printhead
CR EncoderCR Motor
AC inOnly L200/L201
Panel UnitL100/L101 L200/L201 
						

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Appendix Troubleshooting 45 L200/L201/L100/L101Revision A
4.3  Troubleshooting
This section describes the troubleshooting workflow and fatal error information.
4.3.1  Troubleshooting Workflow
The following page describes the troubleshooting workflow. Follow the flow when troubleshooting problems. 
						

							L200/L201/L100/L101Revision A
ConfidentialAppendixTroubleshooting Workflow46
This flowchart is compiled based on the following contents. 
„Our experience regarding the quality problem.
„ESK’s repair data on FY08 / FY09 models.
„Printer Mechanism specification for L200/L201/L100/L101.
Fatal error
Please refer to “ 4.3.2 Fatal Error 
Code (p47) ”for troubleshooting.
Maintenance error
[Occurrence Condition]
This error occurs when 
maintenance counter in EEPROM 
exceeds the specified value.
[Major Occurrence Timing]
• Power-on timing
• Print start timing
• Cleaning timing
[Troubleshooting]
• Porous Pad replacement
• Tube Assy replacement
• Maintenance counter reset
Ink End error
[Occurrence Condition]
This error occurs when ink in Ink 
Cartridge is empty.
[Major Occurrence Timing]
• Power-on timing
• Print start timing
• Cleaning timing
• Print timing
[Troubleshooting]
• Refill the ink(s)
Paper Jam error
Please refer to “ Paper Jam error ” 
of “Error occurs in printing 
operation”.
Paper Jam error
[Occurrence Condition]
This error occurs when top/
bottom of paper is not detected by 
PE Sensor in the specified steps of 
paper feeding operation correctly.
[Major Occurrence Timing]
• Power-on timing
• Paper loading timing
• Paper eject timing
[Major Troubleshooting]
1 Push “Start” button to eject the 
paper.
•Success
Start paper feeding operation 
again if printer has print data.
•Fail
Occur paper jam error again.
2 If fail in the above 1), remove 
the paper.
3 Push “Start” button again.
•Success
Start paper feeding operation 
again if printer has print data.
•Fail
Occur paper jam error again.
4 If fail in the above 3), check 
foreign material / part come-
off / PE Sensor Lever / Porous 
Pad on Paper Guide Front / 
Main board.
No Paper error
[Occurrence Condition]
This error occurs when top of 
paper is not detected by PE Sensor 
in the specified steps of paper 
loading operation correctly.
(No paper / No loading / No 
cassette / large paper skew)
[Major Occurrence Timing]
• Paper loading timing
[Major Troubleshooting]
1 Put papers in cassette and push 
“Start” button.
2 If a paper stops before reaching 
PE Sensor, remove it and 
check the paper condition.3 A) If no damage in the above 2),
set edge guide correctly after
putting papers in cassette and
retry.
B) If damage in the above 2),
check foreign materials / 
parts come-off / parts
transformation in paper
path.4 If not resolved by 3-A) & 3-B), 
check foreign material / Part 
come-off / surface condition of 
LD Roller / PE Sensor Lever /  
Main Board / PF Motor.
Double Feed error
*2
[Occurrence Condition]
This error occurs on the following 
case.
• A paper is ejected without 
printing during paper loading 
operation.
• Actual paper length is longer 
than theoretical one. 
[Major Occurrence Timing]
• Paper loading timing
• Paper feed timing
• Paper eject timing
[Troubleshooting]
• PE Sensor Lever replacement
• Main Board replacement
No Power
*1
[Presumable Cause]
• Power Supply Board damage
• Main Board damage
[Major Troubleshooting]
• Power Supply Board 
replacement
• Main Board replacement
Poor Printing
[Phenomenon]
• Poor printing quality
• Ink stain on paper
• Dot missing
• Paper eject without printing
[Presumable Cause]
• Driver / Panel mis-setting
• Contamination of CR scale
• Contamination of Printhead 
cover
• Printhead damage
• Ink clogging of Printhead
• Contamination on Cap Unit / 
Wiper of Ink System Assy
• Ink System Assy damage
• Float of Porous Pad on Paper 
Guide Front
•Narrow PG
• PE Sensor Lever damage
• PE Sensor damage
[Major Troubleshooting]
• Driver / Panel re-setting
• CR Scale replacement
• Printhead cover cleaning
• Printhead cleaning
• Ink Cartridge replacement
• Printhead replacement
• Rubber cleaning of Cap Unit
• Ink System Assy replacement
• Porous Pad re-installation
•PG readjustment
• Printer Mechanism 
replacement
• PE Sensor Lever replacement
Poor Paper Loading
[Presumable Cause]
• Use of 3rd party media
• Edge guide mis-setting
• Foreign material
• Part come-off
[Major Troubleshooting]
• Recommendation of EPSON 
media
• Edge guide re-setting
• Foreign material removal
• Part re-installation
• Roller replacement
Abnormal Noise
[Presumable Cause]
• Foreign material
• Insufficient grease
•Gear damage
[Major Troubleshooting]
• Foreign material removal 
• Lubrication of grease
• Gear replacement
Scanner failure
[Presumable Cause]
• Contamination of Scanner 
Glass 
• Contamination of Document 
Pad 
• CIS Unit bonding failure
• CIS Unit damage
• Scanner Motor damage
[Major Troubleshooting]
• Scanner Glass cleaning
• Document Pad cleaning
• Document Pad replacement
• CIS Unit replacement
• Scanner Motor replacement
Finish
*4
Turn on the printer
1
1
Major problem without error message
What is returned reason?
Copy an image
Flow A
Return previous flowIs printing operation 
finished without trouble?
Start
Scanner unit 
failure
*3
Printer failure only
No
Yes YesNo
YesNo
YesNo
YesNo
Start
Is printing operation 
finished without error?
*1: If the printer can turn on but turns off right away, the protection circuit may cut off 
the power due to an error such as a circuit failure.
*2: Only for manual duplex print
*3: Only for L200/L201.
*4: In case of “Not Trouble Found”, check fatal error code.
Major problem with error message
Major problem without 
error message
Is Power-on sequence 
finished without error?Perform “Flow A”Standby conditionIs scanning operation 
finished without 
trouble?Does printer turn on the 
power?
Print check pattern
Blank Printing
[Presumable Cause]
• Valve closes
• Ink tank ventilation film gets 
wet
• Ink tube crumples
• Ink tube connection is 
incomplete.
[Major Troubleshooting]
• Open valve
• Ink tank replacement
• Ink tube re-installation 
						

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Appendix Fatal Error Code 47 L200/L201/L100/L101Revision A
4.3.2  Fatal Error Code
This section describes the fatal error code and the possible cause for this product.
†Printer fatal error list
Note * : Not occurs except in manufacturing process.
†Scanner fatal error listTable 4-2. Fatal Error List (Printer)
Error typeError 
codeError namePossible cause
DC motor 
error01H Carrier stall error• CR Encoder failure (contaminated/detached scale, Encoder Board failure)
• Motor driver failure (Main Board failure)
• CR Motor failure
• Tooth skip of the CR Timing Belt
• Improper tension of the CR Timing Belt
• Carriage overload error (paper jam/foreign object)
• Cable disconnection
04H Print incomplete error• CR Encoder failure (contaminated/detached scale, Encoder Board failure)
• Motor driver failure (Main Board failure)
• CR Motor failure
• Tooth skip of the CR Timing Belt
• Improper tension of the CR Timing Belt
• Carriage overload error (paper jam/foreign object)
02H Feed stall error• PF Encoder failure (contaminated/detached scale, Encoder Board failure)
• PF Motor failure
• PF drive mechanism overload (paper jam/foreign object)
• Cable disconnection
Printhead 
system error03H Head hot error• Printhead failure
• Head FFC disconnection
08H Head temperature error• Printhead failure
• Main Board failure
• Head FFC disconnection
09H Environmental temperature error• Main Board failure
• Head FFC disconnection
Sequence 
error0AH Carrier multiple drive error
---*
Logic error 0CH Analog-ASIC communication error • Main Board failure
Table 4-3. Fatal Error List (Scanner)
Error codeError namePossible cause
01H Scanner HP detection error• CIS Unit failure
• Scanner Unit failure
• Dust in Scanner Unit
• Cable/FFC disconnection