Epson WorkForce 600 Service Manual page 70

EPSON WorkForce 600/EPSON Stylus OFFICE TX600FW/BX600FW/EPSON Stylus SX600FW/ME OFFICE 700FW
Print Quality State Detailed phenomenon
Ink is ejected to the Cap from the Print
• White streak /
Head, but printing is not done at all after
cleaning or ink change, or abnormal
abnormal discharge
discharge occurs.
Vertical banding appears against the CR
movement direction. And, it looks like
uneven printing.
CR movement
direction
• White streak / color
unevenness
occurrence
[Note]
If the problem is not solved, replace the
CR Motor with a new one.
TROUBLESHOOTING
Table 3-25. Check point for the defective printing quality
Defective
unit/part name
1. Check if the Head FFC is securely connected to the Print
Head Connectors and the Main Board Connectors (CN4,
CN5, and CN21).
Print Head
Head FFC
Connector
2. Check if the Head FFC is not damaged.
1. Check if it returns to normal by performing CL operation
Print Head
or replacing the Ink Cartridge.
Main Board Unit 1. Check if the Main Board is not damaged.
1. For printing in the Bi-D mode, check if Bi-D Adjustment
Adjustment
has been performed properly.
1. Check if the Nozzle Check Pattern is printed properly.
Print Head
1. Check if there is any foreign material on the Carriage
path.
2. Check if the Main Frame is deformed.
Main Frame
3. Check if the grease is enough on the Carriage path of the
Main Frame.
Error Indications and Fault Occurrence Causes
Check point
1. Connect the Head FFC to the Print Head and
Head FFC
CN5
CN4
CN21
2. Replace the Head FFC with a new one.
1. Perform CL operation and the Ink Cartridge
1. Replace the Main Board Unit with a new one.
1. Perform Bi-D Adjustment to correct print start
2. Perform Head Cleaning and check the Nozzle
1. Remove foreign material from surface of the
2. Replace the Main Frame with a new one.
3. After wiping the grease G-71 on the Carriage
Revision A
Remedy
the Main Board Connectors.
replacement specified times. If it doesn't work,
change the Print Head with a new one.
timing in bi-directional printing. (Refer to
Chapter 5 "ADJUSTMENT" (p.150).)
Check Pattern. (Refer to Chapter 5
"ADJUSTMENT" (p.150).)
If the problem is not solved, replace the Print
Head with a new one.
Carriage path.
path with a dry, soft cloth, coat it with grease.
(Refer to Chapter 6 "MAINTENANCE"
(p.163).)
Confidential
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