Epson LX-300+ Service Manual

LX-300+/1170 Revision C
Disassembly and Assembly
O
verview 72
4.1.3 Service Checks After Repair
Before returning the printer back to the user, use the check list below to confirm the quality
of the repaired printer.
Table 4-4. Check List for Repaired Printer
Category Component Item to Check Check
Printer
Mechanism
Printhead
Is dot missing? ¨OK ¨NG
Are any wires broken? ¨OK ¨NG
Carriage
mechanism
Does carriage move smoothly?
¨CR movement is not noisy?
¨CR mechanism is not dirty?
¨CR mechanism is not oily?
¨OK ¨NG
Is the CR motor assembly at the
correct temperature?
(Not overheating?)
¨OK ¨NG
Paper feed
mechanism
Is paper advancing smoothly?
¨PF movement is not noisy?
¨PF mechanism is not dirty?
¨PF mechanism is not oily?
¨OK ¨NG
Is the PF motor assembly at the correct
temperature?
(Not overheating?)
¨OK ¨NG
Paper path
Are all the types of paper fed
smoothly?
¨OK ¨NG
Does the tractor feed paper smoothly? ¨OK ¨NG
Is the paper path clear of obstructions? ¨OK ¨NG
Is the platen free of damage? ¨OK ¨NG
Ribbon mask Is the ribbon mask free of distortion? ¨OK ¨NG
Test printing Is the test printing successful? ¨OK ¨NG
Online
printing
Is the online printing successful? ¨OK ¨NG
Adjustment
Printhead
Is the platen gap adjusted correctly? ¨OK ¨NG
Is Bi-d adjustment value correct? ¨OK ¨NG
Initial setting
Have all user changeable settings been
reset to the default value?
¨OK ¨NG
Version Up ROM version Latest ROM version ________ ¨OK ¨NG
Transportation
Ink ribbon Is ribbon removed? ¨OK ¨NG
accessories
Are all the relevant parts included in
the shipment?
¨OK ¨NG
Table 4-4. Check List for Repaired Printer
Category Component Item to Check Check

Epson LX-300+ Specifications

General

Emulation	Epson ESC/P, IBM PPDS
Print Method	9-pin, impact dot matrix
Interface	Parallel
Paper Handling	Friction feed
Dimensions	366 x 275 x 159 mm
Paper Width	4 - 10 inches