LQ-670 Service Manual
Rev. A

3-2

3.1.3 Service Check After Repair
After completing repair of the product, use the check list shown below, to verify status of
repaired product and all the repair work performed before returning the product to the users.
This list can be used as a record of all service work performed with the product.
Table 3-2. Repair Status Check List
Category Component Item to Check Status
Printer
Mechanism Printhead Are all wires print properly? Checked, OK
Not necessary
Carriage
Mechanism Does the carriage move smoothly?
zNoisy?
zAny dirt or excessive oil?
Checked, OK
Not necessary
Is the Carriage motor at the normal
temperature? (Not too hot?)
Checked, OK
Not necessary
Paper Feed
Mechanism Is paper advance smoothly?
zNoisy?
zPaper is jamming?
Checked, OK
Not necessary
Is the paper-feed motor at the normal
temperature? (Not too hot?)
Checked, OK
Not necessary
Paper Path Are all types of paper advance
smoothly?
Checked, OK
Not necessary
Is the tractor feeding paper smoothly? Checked, OK
Not necessary
Are all paper paths clear of an
obstructions?
Checked, OK
Not necessary
Is the platen free of damage? Checked, OK
Not necessary
Ribbon Mask Is the ribbon mask free of damage? Checked, OK
Not necessary
Operation Self-Test Was the self-test printing successful? Checked, OK
Not necessary
On-line Test Was the on-line printing successful? Checked, OK
Not necessary
Adjustment Platen-Gap Is the gap adjusted correctly?
(PG =
Checked, OK
Not necessary
Bi-D
Alignment Is the bi-directional alignment made
properly?
Checked, OK
Not necessary
ROM Version Latest version = ( ) Checked, OK
Not necessary
Packing Ribbon
Cartridge Has the ribbon cartridge been removed
from the printer?
Checked, OK
Not necessary
Attachments Have all relevant attachments been
packed together with the printer?
Checked, OK
Not necessary