Epson STYLUS PHOTO 925 Service Manual page 70

EPSON Stylus Photo 925
Observation
[Observation 6]
In the CL sequence, ink is ejected to the
Waste ink pad. But, dot missing occurs on all
the nozzles in the printing and is not solved
even by several times of CL.
*If the problem is not solved, replace the
Main Board with a new one.
[Stripes perpendicular to the CR moving
direction appear, with uneven density of
print.]
CR Movement
Direction
*If the problem is not solved, replace the CR
Motor with a new one.
Troubleshooting
Table 3-12 Check Points for Poor Print Quality (continued)
LCD Unit/Part in
Indication Question
- Cap Unit 7. Check to see if the Slider Lock Lever is damaged.
Ink Cartridge 1. Check to see if ink is remaining in the ink cartridge.
Print Head 1. Check to see if there is any foreign matter on the nozzle
surface of the print head.
2. Check to see if the Head FFC is connected to the CN8 and
CN9 on the Main Board.
3. Check to see if any damage is observed on the Head FFC.
4. Check to see if each segment is printed correctly in the
nozzle check pattern.
CR Unit 1. Check to see if the surface of the CR Guide Shaft has any
sever stain.
2. Check to see if the surface of the CR Guide Shaft is free from
scratches.
3. Check to see if grease has been applied sufficiently to the CR
Guide Shaft.
4. Check to see if the CR Guide Shaft is secured to the Main
Frame properly.
5. Check to see if the ink cartridge is fastened with the ink
cartridge cover.
Unit Level Troubleshooting
Check Points
7. Replace the Cap Unit with a new one.
1. Replace the Ink Cartridge with a new one.
1.
2. Connect the Head FFC securely to the CN8 and
3. Replace the Head FFC with a new one.
4. Execute head cleaning and check the nozzle
1. Remove the foreign matter from the CR Guide
2. Replace the CR Guide Shaft with a new one.
3. Clean the surface of the CR Guide Shaft with
G56 Lubrication
4. Reinstall the CR Guide Shaft properly.
5. Replace the Ink Cartridge cover with a new
Revision A
Remedy
Perform wiping operation.
CN9 on the Main Board.
check pattern.
If the problem is not solved, replace the Print
Head with a new one.
Shaft carefully.
the dry soft cloth and lubricate G-56 inside the
CR Guide Shaft. Refer to Table 6-3 in Chapter
6.
one.
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