Service manual
6.1 PREVENTIVE MAINTENANCE
Preventive maintenance includes regular cleaning of the exterior case using denatured alcohol, as well as
occasional vacuuming of the mechanism 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 springs, paper-feed rollers, and basic operation.
Disconnect the printer from 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 the printer be lubricated at the points illustrated to the following pages. Table 6-2 lists
each point along with its recommended lubricant. The recommended lubricants are EPSON G-26 and O-2,
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 the surface to be lubricated is clean. Do
not apply too much lubricant, as this may damage nearby parts.
Table 6-1. Lubrication
Type Name Quantity Availability Part No.
Grease G-26 40 gm EPSON B702600001
Oil O-2 40 cc EPSON B703700001
Table 6-2. Lubrication Points
Ref. No. Lubrication Points
Quantity
Lubricant
1 Cam surface on the 34.5 mm spur gear 2 mm width, halfway G-26
2
The platen gap adjustment slots on the right
frame.
2 mm width, from the
top slot to the 3rd from
the bottom.
G-26
3
The shaft end of drive roller assembly and the
cutout section on the left frame.
About 1/2 the size of a
grain of rice
G-26
4 Oil pad half of the pad O-2
5
RD planetary shaft and planetary lever leaf
spring
About 1/2 the size of a
grain of rice.
G-26
6-1
6-2
RD housing
Side of shafts: 3 points
Inside hole: 1 point
About 1/2 the size of a
grain of rice
About the whole the
size of a grain of rice.
G-26
7
RD Assembly
Gear teeth: 5 points
About 1/2 the size of a
grain of rice
G-26
8
Contact area of the paper guide and the
release shaft
About whole the size
of a grain of rice.
G-26
Note: Lubrication must be applied during the reassembly process.
For lublication points, refer to the figure on the next page.
LQ-2070 Service Manual Maintenance
Rev. A 6-1