Epson LQ 300 - Service Checksafterrepair

Disassembly and Assembly
LQ-300 Service Manual
3.1.3 Service Checks After Repair
Before returning the printer after service, use the checklist in Table 3-3, which provides a record to
make servicing and shipping more effiaent.
Table 3-3. Inspection Check list for Repaired Printer
Category Component
Item to
Check
Is Check Required?
Printer
Printhead Are any wires broken?
❑ Checked ❑ Not necessary
units
Are any wires worn out?
❑ Checkeda Not neoessary
Carriage Does the
oarriage move smoothly?
❑ Checked D Not neoessary
mechanism
❑ Movement noisy Q Mechanism dirty
❑ Mechanism oily
Is the CR motor at the
❑ Checked UNot necessary
oorrect temperature (not overheating)
Paper
Is paper advancing smoothly?
❑ Checkedn Not neoessary
advance
❑ Movement noisya Mechanism dirty
mechanism
❑ Mechanism oily
Is the paper advanoe motor running
❑ Checked ❑ Not neoessary
at the correct temperature (not
overheating)
Paper path Is the
&oe of paper in the printer
❑ Checked ❑ Not neoessary
feeding smoothly?
Is the tractor feeding the paper
❑ Checkedn Not neoessary
correctly?
Is the paper path clear of all
❑ Checked ❑ Not neoessary
obstructions?
Is the platen free of damage?
❑ Checked ❑ Not neoessaty
Ribbon Is the ribbon mask free of distortion?
❑ Checkedn Not necessary
mask
Self-print
Was the self-print successful?
❑ Checked ❑ Not necessary
test
On-line test Was the on-line test successful?
❑ Checked ❑ Not necessary
Adjustment Printhead Is the platen gap adjusted correctly?
❑ Checked ❑ Not necessary
printing
Is the bidirectional print position
❑ Checked D Not necessary
adjusted
oorreotly?
Default Have user-ohangeable settings been
❑ Checked ❑ Not necessary
setting
reset to the default value?
System ROM ROM version
❑ Checked ❑ Not necessary
upgrade
version
Shipment
Has the ribbon been removed?
❑ Checked ❑ Not necessary
Have all relevant parts been included
❑ Checked ❑ Not necessary
in the shipment?
.
3-2
Rev.A