Disassembly and Assembly
EPSON Stylus COLOR 400 Service Manual
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3.1.4 Service Checks After Repair
Before returning the printer after service, use the check list in Table 3-3, which provides a record to
make servicing and shipping more efficient.
Category Component Item to Check Is Check Required?
Self-test Is 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 carriage move smoothly?
Checked
Not necessary
Is there abnormal noise during
movement?
Checked
Not necessary
Any dirt or debris around the
carriage guide shaft?
Checked
Not necessary
Printer units Is the CR motor at the correct
temperature (not overheating)?
Checked
Not necessary
Paper feed
mechanism
Is paper fed smoothly?
Checked
Not necessary
Does paper jam?
Checked
Not necessary
Does paper skew during paper
feeding?
Checked
Not necessary
Are sheets multi-fed?
Checked
Not necessary
Does the PF motor overheat?
Checked
Not necessary
Is there abnormal noise during
paper feeding?
Checked
Not necessary
Is the paper path clear of all
obstructions?
Checked
Not necessary
Adjustment Adjustment points Are adjustments correct?
Checked
Not necessary
Lubrication Lubrication points Was lubrication applied to the
specified points? (CAUTION: Do
not apply too much lubricant.)
Checked
Not necessary
Is the quantity of lubrication
adequate? (CAUTION: Do not
apply too much lubricant.)
Checked
Not necessary
Firmware ROM version Newest version?
Checked
Not necessary
Shipment
package
Ink cartridge Is the ink cartridge installed
correctly?
Checked
Not necessary
Protection during
transport
Are all parts firmly attached?
Checked
Not necessary
Others Attached items Are all attached items from users
included?
Checked
Not necessary
Table 3-3. Inspection Checklist for the Repaired Printer
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