EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly
89
4.1.4 Service Checklist
Before returnin
the printer after servicin
,
ou ma
wish to use the
checklist below to make sure the printer is in
ood condition.
Table 4-3. Inspection Checklist for the Repaired Printer
Category Component Item to check Is Check Required?
Printer Self-test Is the operation normal?
Checked /
Not necessary
On-line test Was the on-line test successful?
Checked /
Not necessary
Printhead Is ink ejected normally from all nozzles?
Checked /
Not necessary
Carriage
mechanism
Does the carriage move smoothly?
Checked /
Not necessary
Any abnormal noise during movement?
Checked /
Not necessary
Any dirt or obstructions around the carriage guide
shaft?
Checked /
Not necessary
Is the CR motor at the correct temperature
(not overheating)?
Checked /
Not necessary
Paper feeding
mechanism
Is paper fed smoothly?
Checked /
Not necessary
Does paper get jammed?
Checked /
Not necessary
Does paper get skewed during paper feeding?
Checked /
Not necessary
Does more than one sheet of paper feed at a
time?
Checked /
Not necessary
Does the PF motor get overheated?
Checked /
Not necessary
Any abnormal noise during paper feeding?
Checked /
Not necessary
Is the paper path clear of all obstructions?
Checked /
Not necessary
Adjustments Specified adjustment items Are adjusted conditions all right?
Checked /
Not necessary
Lubrication Specified lubrication items Is lubrication applied to the specified locations?
Checked /
Not necessary
Is the quantity of lubrication neither too much nor
too little?
Checked /
Not necessary
System program PROM Does it have the newest version?
Checked /
Not necessary
Shipping Ink cartridges Are the ink cartridges installed correctly?
Checked /
Not necessary
Packaging Are all loose parts firmly fixed?
Checked /
Not necessary
Miscellaneous User’s belongings Are all the user’s belongings included?
Checked /
Not necessary
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