Epson LX-300 Service Manual

LX- Servica Manual
Maintenance
6.1 PREVENTIVE MAINTENANCE
Preventive maintenance includes regular cleaning of the case exterior (using denatured alcohol), as
well as occasional vacuuming of the mechanism’s interior to remove dust and paper debris. After
cleaning the unit, check that it is adequately lubricated
(as described in Section 6.2, below). Before
returning the printer to the customer, inspect the springs, paper-feed rollers, and basic operation.
Disconnect the printerfiom the external AC power source before performing maintenance.
Do not use thinner, trichloroethylene, or ketone-based solvents on the plastic components
of the printer.
6.2 APPLYING LUBRICATION
EPSON recommends that the printer be lubricated at the points illustrated in Figure 61. Table 6-2
lists each point along with its recommen
ded lubricant. The recommended lubricants are EPSON
G-20, G26 and O-2, all of which have been tested extensively and found to comply with the needs
of this printer. (Table 6-1 provides details about these lubricants.) Before applying a lubricant, be
sure that the surface to be lubricated is clean. Do not apply too much lubricant, as this may
darnage nearby parts.
Table 6-1. Lubrication
Type Name
Quantity
Availability
Part No.
G-26
40 gm EPSON
B702600001
Grease
G-20
40 gm EPSON
B702ml
Oil o-2 40CC
EPSON
B703700001
Table 6-2. Lubrication Points
Ref. No.
Lubrication Pointa
Lubricant
(1)
The hooks that attach the CR motor assembly to the base frame.
(3 places)
G-26
(2)
The shafts for the gear train on the left frame.
G-26
(3) The shafts for the gear train on the right frame.
G-26
(4)
The contact surface of the release lever and tractor transmission gear.
G-26
(5) The oil pad in the carriage assembly.
o-2
(6) The teeth of gear 34. G-26
(7)
The point at which the platen ground spring contacts the platen shaft.
G-20
(8) The pottions of the carriage assembly that oontacts the CR guide frame.
G-26
(9)
The contact portion of the left tractor frame and tractor shaft.
G-26
(lo)
The contact point of the right tractor frame and tractor shaft.
G-26
(11) The contact point of the driven pulley shaft and drive pulley.
G-26
(12) The contact point of the driven pulley shaft and drive pulley.
G-26
Note: Lubrication must be applied during the reassembly process.

Epson LX-300 Specifications

General

Print Method	9-pin impact dot matrix
Interface	Parallel
Paper Handling	Friction feed, tractor feed
Weight	4.4 kg
Operating Environment	Temperature: 5 - 35°C, Humidity: 10 - 80%