Service manual

Epson Stylus Photo PX650/TX650/TX659/PX660/PX660 Premium/Artisan 635 Revision C
TROUBLESHOOTING Troubleshooting When There is No Error Display 56
Confidential
 Printing is not carried out correctly
 Waste ink is not discharged properly
Table 3-11. Diagnostics when printing is erratic
Condition Cause Check Point Remedy
Carriage moves
correctly but printing is
not normal.
Ink Cartridge not operating
properly
Install a new ink cartridge and test printing. Replace the ink cartridge.
FFC not connected
properly
Check the FFC connection between each CSIC Board -
Main Board.
Connect the FFC firmly.
Cleaner Blade not
operating properly
Check for debris adhering to the Cleaner Blade. Clean or replace the Cleaner Blade.
FFC internal disconnection Check each FFC with a circuit tester. Replace the FFC.
Faulty Printhead Alternate cleaning and test printing several times.
When the condition is not improved even after cleaning, replace the Printhead with a
new one.
Ink leakage or clogging
with ink
Check to see if there is ink leakage from the Printhead.
Install the ink cartridges properly.
If this does not improve the condition, replace the ink cartridges and the Printhead.
Table 3-12. Troubleshooting for Faulty Ink Supply or Faulty Waste Ink Discharge
Condition Cause Check Point Remedy
Ink is not flowing from
Printhead to Cap or
from Cap to Ink Tube
Pump tube collapsed Visually check the tube. Replace the Ink System Assy
Cap is dirty or damaged.
Check for foreign object adhering to the Cap or
damaged Cap.
Remove foreign object from the Cap with a cotton swab. If the Cap is damaged,
replace the Ink System Assy.
Tube is disconnected from
Cap bottom
Visually check for disconnection of the tube from Cap
bottom.
Connect the tube properly.
Cap does not slide up
properly
Check for installation of compression spring on the tube
assembly.
Replace the Ink System Assy with a new one.
Tube between the Waste
Ink Tray Assy - I/S Assy
collapsed
Check the tube connection on the bottom of the Waste
Ink Tray Assy and the tube route under the tray.
Connect the tube of the Waste Ink Tray Assy properly, and route the tube properly.