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EJ-640 

Maintenance Guide 

 

 

4. Perform a printing test to verify the results of the procedure. 

Perform a printing test to verify the results. 

Replacing the Separating Knife 

If the separating knife becomes dull, replace it with the included replacement knife. 

Note: 

Be sure to perform operations as specified by the instructions, and never touch any 

area not specified in the instructions. 

Sudden movement of the machine may cause injury. 

Summary of Contents for EJ-640

Page 1: ...ame color runs out the machine continues printing using the other ink cartridge When all ink cartridges of the same color run out printing pauses and a warning beep sounds If using 7 Colors CMYKLcLmLk...

Page 2: ...ing on the screen so as to replace ink cartridges before they run out How to Replace Ink Cartridges When ink runs out a warning beep sounds and printing pauses unless the factory default settings have...

Page 3: ...to an open flame Any location where high temperatures may occur Near bleach or any other such oxidizing agent or explosive material Any location within reach of children Doing so may lead to fire Acci...

Page 4: ...te Before you detach the drain bottle be sure to wait for the screen to display EMPTY DRAIN BOTTLE Failing to do so may cause discharged fluid to flow out of the machine and spill onto your hands or t...

Page 5: ...e discharged fluid or discard it with ordinary trash Also do not dispose of it in sewer systems rivers or streams Doing so may have an adverse impact on the environment If It Is Not Possible to Check...

Page 6: ...platen and dryer cool approximately 30 minutes Sudden movement of the machine may cause injury or hot components may cause burns Wipe away any ink or grime on the media path and any other areas as par...

Page 7: ...l to ensuring optimal printing at all times There are maintenance tasks that should be performed daily and those that should be performed periodically Daily Care and Maintenance Printing tests and nor...

Page 8: ...is cleaning when printed colors are unstable or uneven e g when color density is inconsistent even if the same data is printed with the same settings Refresh subtanks REFRESH SUBTANKS Use this procedu...

Page 9: ...EJ 640 Maintenance Guide...

Page 10: ...times perform manual cleaning Such cleaning can be effective when carried out periodically according to the frequency of use If Colors Are Uneven Light Choke Cleaning Perform this cleaning when printe...

Page 11: ...EJ 640 Maintenance Guide Procedure If uneven color issues are not resolved by light choke cleaning refresh the subtanks Maintenance That Should Be Performed Once a Month or More...

Page 12: ...a month or more Manual cleaning takes approximately 10 minutes Manual Cleaning Is Recommended When the Following Symptoms Occur It is recommended to perform manual cleaning when any of the symptoms g...

Page 13: ...de Manual Cleaning Note Be sure to perform operations as specified by the instructions and never touch any area not specified in the instructions Sudden movement of the machine may cause injury 1 Ente...

Page 14: ...EJ 640 Maintenance Guide 2 Clean the wipers using a cleaning stick Note Clean the two wipers one at a time...

Page 15: ...EJ 640 Maintenance Guide...

Page 16: ...EJ 640 Maintenance Guide 3 Clean the area around the print heads with the cleaning stick...

Page 17: ...EJ 640 Maintenance Guide...

Page 18: ...nd right covers and then end the manual cleaning mode 5 Perform a printing test to verify the results of the procedure Perform a printing test to check the results Perform cleaning using the machines...

Page 19: ...months print quality may be adversely effected e g printed colors may be uneven This operation is effective when performing light choke cleaning does not resolve uneven color issues Procedure Note Wh...

Page 20: ...ll soiling your hands or the floor When Problems such as Dot Drop out are Not Fixed When Problems such as Dot Drop out are Not Fixed Perform the procedure below if ink discharge issues such as dot dro...

Page 21: ...EJ 640 Maintenance Guide Procedure...

Page 22: ...rint heads When the screen displays a message like the one shown below it is time to replace the items There are two wipers Replace both wipers with new ones Note Be sure to perform operations as spec...

Page 23: ...EJ 640 Maintenance Guide 1 Enter the wiper replacement menu...

Page 24: ...EJ 640 Maintenance Guide 2 Replace the wipers...

Page 25: ...t Wipers The felt wipers are parts used for cleaning the print heads When the screen displays a message like the one shown below it is time to replace the items There are two felt wipers Replace both...

Page 26: ...EJ 640 Maintenance Guide Sudden movement of the machine may cause injury 2 Replace the felt wipers...

Page 27: ...to verify the results Replacing the Separating Knife If the separating knife becomes dull replace it with the included replacement knife Note Be sure to perform operations as specified by the instruc...

Page 28: ...EJ 640 Maintenance Guide Note Never touch the tip of the knife Doing so may result in injury 1 Enter the knife replacement menu...

Page 29: ...EJ 640 Maintenance Guide 2 Replace the separating knife 3 Exit the knife replacement menu...

Page 30: ...igh may degrade the ink and cause malfunction Temperatures that are too low may cause the ink to freeze and damage the heads Alarm Feature The alarm feature reminds you to switch on the sub power once...

Page 31: ...EJ 640 Maintenance Guide...

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