Epson L1800 Service Manual page 31

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.
Horizontal or vertical Although inks are ejected from
banding / Getting the Print Head to the Cap, the
smeared trouble still occurs after
executing a cleaning cycle.
Troubleshooting
Table 2-8. Print Quality Troubles
Faulty Part/
Part Name
Ink System Unit 1. Check if the Cleaner Blade is covered with paper dust or is bent. 1. Replace the Ink System Unit with a new one.
Cleaner Blade
Cleaner Blade
Main Board 1. Check the Main Board for damages.
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.
Overview
Check Point
Revision A
Remedy
1. Replace the Main Board with a new one.
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.
Confidential
26