Epson SureColor B6070

This section provides troubleshooting of print quality troubles classifying them by observed symptom. Before performing troubleshooting, refer to “Nozzle Check” and print nozzle check pattern. Examine the printed pattern, and if any missing segment is found, perform the PRINT HEAD cleaning.

The nozzles are still clogging after cleaning.

Cause	Check Item	Remedy
The Wiper is contaminated and wiping the PRINT HEAD cannot be performed properly	1. Is the Wiper or Wiper Cleaner contaminated? 2. Is the Wiper or Wiper Cleaner damaged?	1. Clean the Wiper. 2. Replace the Wiper and Wiper Cleaner.
The Head Cap is contaminated.	Is the Cap contaminated?	1. Clean the Cap. 2. Replace the Cap (PUMP CAP UNIT)
There is some foreign material on the PRINT HEAD.	Is there any foreign materials on the PRINT HEAD?	Clean the PRINT HEAD.
There is something wrong in the pump tube and the cleaning (suctioning of ink) cannot be performed properl	Is the pump tube being bent or getting caught between surrounding parts or components?	Route the pump tube correctly.
The ink is leaking.	Is there any ink leakage observed on the ink flow paths?	If any leakage is found, correct it.
There is air inside the ink path	Is there any air bubbles observed in the ink flow paths?	Run a head cleaning
The HEAD FFC is not connected correctly.	Is the HEAD FFC connected properly without being connected at an angle and any abnormalities such as peeled terminals?	1. Reconnect the HEAD FFC. 2. If the trouble still occurs, the cause may be breaking of the HEAD FFC. Replace the HEAD

If any of the remedies above does not help, replace the following parts one by one.

• PRINT HEAD
• MAIN BOARD (The fuse may have blown)

Horizontal or vertical lines look misaligned.

Cause	Check Item	Remedy
Adjustment failure of the IM SENSOR		Carry out the following adjustments.  Auto Bi-D adjustment  Ink Mark Sensor check & Auto Adjustment
IM SENSOR is out of order.	Does the IM SENSOR function normally? Check it using the Service Program.	Replace the IM SENSOR
The PRINT HEAD has not been adjusted properly.	Have the following adjustments been made properly?  Head inclination auto adjustment (CR direction)  Head slant auto adjustment (PF direction)	Carry out the adjustments correctly.  Head inclination adjustment (CR direction)  Head slant adjustment (PF direction)
Improper PG adjustment	1. Is the paper thickness setting correct? 2. Has the PG adjustment been made properly?	1. Correct the paper thickness setting. 2. Perform the PG adjustment.

Bandings in the paper feeding direction.

Cause	Check Item	Remedy
The PRINT HEAD has not been adjusted properly.		Carry out the following adjustments.  Head inclination adjustment (CR direction)  Head slant adjustment (PF direction)
The paper was not fed properly.		Carry out the following adjustment.  Media Feed Auto Adjustment Check the following settings.  Feed Adjustment  Media Tension
PF SCALE or PF ENCODER failure	1. Is the PF SCALE damaged or contaminated? 2. Is the PF SCALE attached properly? 3. Is the PF ENCODER installed correctly?	1. Clean the PF SCALE. 2. Reinstall the PF SCALE and PF ENCODER. 3. Replace the PF SCALE and PF ENCODER
The tension of the PF TIMING BELT is not proper.		Correct the tension of the PF TIMING BELT.
PF MOTOR failure		Replace the PF MOTOR.

Bandings in the carriage movement direction.

Cause	Check Item	Remedy
Adjustment failure of the IM SENSOR		Carry out the following adjustments.  Auto Bi-D adjustment (Page 319)  Ink Mark Sensor check & Auto Adjustment
Improper PG adjustment	1. Is the paper thickness setting correct? 2. Has the PG adjustment been made properly?	1. Correct the paper thickness setting. 2. Perform the PG adjustment.
CR SCALE or CR ENCODER failure	1. Is the CR SCALE damaged or contaminated? 2. Is the CR SCALE attached properly? 3. Is the CR ENCODER installed correctly?	1. Clean the CR SCALE. 2. Reinstall the CR SCALE and CR ENCODER. 3. Replace the CR SCALE and CR ENCODER
The tension of the CR TIMING BELT is not proper.		Correct the tension of the CR TIMING BELT.
 Suction setting failure  SUCTION FAN failure	1. Is there any slack in the loaded paper? 2. Does the SUCTION FAN work normally? Check it using the Service Program.	1. Make the suction setting properly. 2. Replace the SUCTION FAN.
Lubrication on the CR moving parts is insufficient.	Has the oil pad of the CR UNIT dried out?	If the pad is dry, lubricate it