Lubrication - Epson Stylus Color 640 Service Manual

EPSON Stylus Color 440/640/740

6.1.3 Lubrication

The type and amount of oil and grease used to lubricated the printer
parts are determined based on the results of internal evaluations.
Therefore, be sure to apply the specified type and amount of oil and
grease to the specified part of the printer mechanism during servicing.

Never use oil and the grease other than those
specified in this manual. Use of different types of
lubricant can damage the printer and the
components.

Never apply larger amount of lubricant than specified
in this manual.
Table 6-1. Specified Lubricants
Type Name
Grease G-26
Oil O-12
Chapter 6 Maintenance
EPSON Code Supplier
B702600001 EPSON
1038991 EPSON
Table 6-2. Lubrication Point
No. Standard
1 <Lubrication Point>
Contact between "ROLLER, PF" and
"PAPER GUIDE, REAR"
<Lubricant Type> G-26
<Lubrication Amount>
A half turn of "ROLLER, PF"
2 <Lubrication Point>
Contact points between "PAPER
GUIDE, FRONT" and each roller:
"ROLLER, PF" (1 point)
"ROLLER, EXIT" (2 points)
<Lubricant Type> G-26
<Lubrication Amount>
10-mm long
2-mm long
3 <Lubrication Point>
Contact points between the carriage
assembly and "FRAME, UPPER"
<Lubricant Type> G-26
<Lubrication Amount>
Range from the HP sensor
installation point to the point where
"GUIDE PLATE, CABLE" is attached.
4 <Lubrication Point>
Gears:
"GEAR, 67.2"
"COMBINATION GEAR, 8, 14.4"
"GEAR, 23.2"
<Lubricant Type> G-26
<Lubrication Amount>
1/4 of gear tooth
1/3 of gear tooth
1/3 of gear tooth
1/3 of gear tooth
Revision A
Remarks
Do not put grease around the paper
path.
Use a syringe to apply it.
Apply grease while rotating "GEAR,
67.2".
Lubricate the contact points between
the hooks on "PAPER GUIDE,
FRONT" and each roller.
Avoid applying grease around the
paper path.
Use a syringe to apply it.
Verify that the carriage moves
smoothly after lubricating it.
Use a syringe to apply it.
Rotate the gears after applying
grease to evenly distribute it.
Use a syringe to apply it.
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