Epson STYLUS CX3500 Service Manual page 108

EPSON Stylus CX3500/CX3600/CX3650/CX4500/CX4600
Print Quality
Detailed phenomenon
State
Ink is ejected to the Cap from the Print
• White streak /
Head, but printing is not done at all after
abnormal
cleaning or ink change, or abnormal
discharge
discharge occurs.
TROUBLESHOOTING
Table 3-19. Check point for the poor 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 (CN5,
CN6, CN7).
Print Head
Head FFC
Connectors
2. Check if the Head FFC is not damaged.
1. Check if it returns to normal by performing CL operation
or replacing the Ink Cartridge.
Print Head
Main Board Unit 1. Check if the Main Board is not damaged.
Troubleshooting
Check point
1. Connect the Head FFC to the Print Head and
Head
FFC
CN6
CN5
CN7
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.
Revision A
Remedy
the Main Board Connectors.
replacement specified times.
If it doesn't work, change the Print Head with
a new one.
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