Epson 50 - Artisan 50 - Printer, Service Manual

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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
Chapter 3 Troubleshooting 3.4 Troubleshooting by Symptom 48
Confidential
Printed image has
white banding.
Dirt on the CR shaft Is there any dirt on the CR shaft? Clean off any dirt on the CR shaft surface with a dry soft cloth.
PF Roller failure
Is there any dirt on the PF Roller? Clean the PF Roller surface with a soft brush carefully so as not scratch
it.
Is the PF Roller damaged? Replace the PF Roller.
Ink cartridge failure
Replace the ink cartridge with a new one, and print a nozzle check
pattern. The printed pattern has no missing dots? The cartridge is defective. Use the new cartridge.
A malfunction of Carriage
movements Are the carriage shaft and the Main Frame properly lubricated? Apply G-71 grease referring to “Lubrication of CR Unit”(p.124) .
Improper platen gap
Is the platen gap (gap between the Printhead surface and the platen)
not properly set? Adjust the platen gap properly.
Some gear(s) is (are) damaged.
Is (are) the gear(s) in the paper feed and ASF mechanisms
damaged? Replace the damaged gear(s).
Dirt on the Printhead is preventing
nozzles from firing ink straight
toward the paper.
Run a cleaning cycle and make a test print. Repeat the operation
several times. Does the problem still appear? Clean the Printhead surface with a cotton swab.
Is there any dust or foreign matter on the Cleaner Blade? Remove any dust or foreign matter on the Cleaner Blade, or replace the
blade.
A malfunction of the Printhead
Run a cleaning cycle and make a test print. Repeat the operation
several times. Does the problem still appear? Replace the Printhead.
CR shaft failure
Is the CR shaft not properly installed? Reinstall the CR shaft properly.
Is the CR shaft surface damaged? Replace the CR shaft.
Table 3-16. Troubleshooting Print Quality Problems
Symptom Possible Cause Check Point Remedy