Service Check After Repair - Epson 890N - FX B/W Dot-matrix Printer Service Manual

EPSON FX-890/2190

4.1.3 Service Check After Repair

After completing repair of the product, use the check list shown below to check the
status of the repaired product and overall repair work performed before returning the
product to the users. This list can be used as a record of all service works performed
with the product.
Table 4-2. Repair Status Check List
Category Component
Printhead Do all wires print properly?
Carriage Dose the carriage move smoothly?
Mechanism
• Noisy
• Any dirt or excessive oil?
Is the CR Motor at the normal
temperature? (Not too hot?)
Paper Feed Does paper advance smoothly?
Mechanism
* Noisy?
* Paper is jamming?
Printer
Is the PF Motor at the normal
Mechanism
temperature? (Not too hot?)
Paper Path
Do all types of paper advance
smoothly?
Is the tractor feeding paper
smoothly?
Are all paper paths clear of
obstructions?
Is the plate free of damage?
Ribbon Mask Is the ribbon mask free of damage?
Disassembly and Assembly
Item to Check Status
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Table 4-2. Repair Status Check List (continued)
Category Component
Operation
Self-Test
On-line Test
Adjustment
Platen-Gap
Bi-D Alignment
ROM Version
Packing
Ribbon Cartridge
Attachments
Overview
Item to Check
Was the self-test printing
successful?
Was the on-line printing
successful?
Is the gap adjusted correctly?
(PG = 0.38 ( 0.02mm )
Is the Bi-Directional alignment
made properly?
Latest version =
Has the ribbon cartridge been
removed from the printer?
Have all relevant attachments been
packed together with the printer?
Revision B
Status
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
Checked, OK
Not necessary
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