Epson L1800 Service Manual page 30

L1800
Observed Faults Details of the Fault
Dot missing and Although inks are ejected from
mixed colors the Print Head to the Cap, the
trouble still occurs after
executing a cleaning cycle.
Troubleshooting
Table 2-8. Print Quality Troubles
Faulty Part/
Part Name
Head FFC 1. Check that the Head FFC is securely connected to the Main
Board connectors CN12, CN13, and CN14.
CN12, CN13, CN14
2. Check the Head FFC for damages.
Head FFC 1. Check that the Head FFC is securely connected to the Print Head
connectors.
2. Check the Head FFC for damages.
Overview
Check Point
Head FFC
Print Head
Connector
Revision A
Remedy
1. Connect the Head FFC to the Main Board
connectors CN12, CN13, and CN14.
2. Replace the Head FFC with a new one. If the
trouble still occurs after replacing it, replace the
Print Head with a new one.
1. Connect the Head FFC to the CR Relay Board
connectors CN1 and CN2.
2. Connect the Head FFC to the Print Head
connectors.
3. Replace the Head FFC with a new one. If the
trouble still occurs after replacing it, replace the
Print Head with a new one.
Confidential
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