Epson 1400 - Stylus Photo Color Inkjet Printer, Service Manual, Page: 63 / 168

EPSON Stylus Photo 1390/1400/1410 Revision B
TROUBLESHOOTING Overview 63
Dot missing and
mixed colors Although inks are ejected from
the Print Head to the Cap, the
trouble still occurs after
executing a cleaning cycle or
replacing the Ink Cartridges. Print Head 1. Run a Nozzle Check, and check the printed pattern if it has
broken lines or missing segments.
1. After running a Head Cleaning, check the
Nozzle Check Pattern again.
2. Check that the Head FFC is securely connected to the Print Head
Connector and Main Board Connectors CN10, CN11, and CN12.
2. Connect the Head FFC to the Print Head
Connector and Main Board Connectors CN10,
CN11, and CN12.
3. Check the Head FFC for damages. 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.
Ink System Unit
Cleaner Blade 1. Check if the Cleaner Blade is covered with paper dust or is bent. 1. Replace the Ink System Unit with a new one.
Main Board 1. Check the Main Board for damages. 1. Replace the Main Board with a new one.
Table 3-12. Print Quality Troubles
Observed Faults Details of the Fault
Faulty Part/
Part Name
Check Point Remedy
Print Head
Connector
Head FFC
CN10, 11, 12
Cleaner Blade