Epson R320 - Stylus Photo Color Inkjet Printer, Service Manual

Page: 27 / 114

EPSON Stylus Photo R320 Revision B
TROUBLESHOOTING Unit Level Troubleshooting 27
At operation
-
[Phenomenon 6]
When the Cleaning is performed, the ink
is drained into "Waste Ink Pad".
However, missing dots and
misalignment occur at all nozzles.
They are not solved by executing the
Cleaning several times.
* If the problem is not solved,
replace "Main Board" with a new
one.
Ink System
7. Check if "Slider Lock Lever" is damaged. 7. Replace "Ink System" with a new one.
Ink Cartridge
1. Check if ink still remains in Ink Cartridge 1. Replace the Ink Cartridge with a new one.
Print Head
1. Check if there is any foreign matter on the nozzle surface
of "Print Head".
2. Check if "Head FFC" is connected to CN7 and CN8 on
"Main Board", or to the board on "Print Head".
3. Check if "Head FFC" is damaged.
4. Check if each segment prints correctly with the Nozzle
Check Pattern.
1. Perform the wiping operation. Replace
"Wiper" when "Wiper" is deformed or
contaminated awfully.
2. Securely connect "Head FFC" to "Main
Board" or the board on "Print Head".
3. Replace "Head FFC" with a new one.
4. Perform Head Cleaning and check the Nozzle
Check Pattern.
* If the problem is not solved, replace "Print
Head" with a new one.
Striped pattern appears in a direction
perpendicular to "Carriage Unit"
movement.
(Note)
If the problem is not solved, replace "CR
Motor" with a new one.
Carriage Unit
1. Check if there is foreign matter on the surface of "CR
Guide Shaft".
2. Check if there is damage on the surface of "CR Guide
Shaft".
3. Check if there is enough grease on the surface of "CR
Guide Shaft".
4. Check if "CR Guide Shaft" is properly connected to
"Main Frame" with the fixing spring of "CR Guide
Shaft".
1. Remove the foreign matter on "CR Guide
Shaft".
2. Replace "CR Guide Shaft" with a new one.
3. Wipe the surface of "CR Guide Shaft" with a
dry soft cloth, and then apply G-63 to it.
Refer to Section 4.1.3.
4. Reassemble "CR Guide Shaft" correctly.
Table 1-14. Check Points for Defective Print Quality
Occurrence Timing
Position of CR
Phenomenon Detail
Faulty Part/
Part Name
Check Point Remedy
Direction of
CR movement