Service Maintenance; Lubrication - Epson 680Pro - LQ B/W Dot-matrix Printer Service Manual

EPSON Stylus COLOR 680/777/777i

6.1.2 Service Maintenance

If print irregularity (missing dot, white line, etc.) has occurred or the printer indicates
"Maintenance Error", take the following actions to clear the error.
o Head Cleaning:
The printer has a built-in head cleaning function, which is activated by operating
the control panel.
Confirm that the printer is in stand-by state (the POWER indicator is not blinking),
and hold down the Error Reset SW on the control panel for more than 3 seconds.
The printer starts the cleaning sequence (The POWER indicator blinks during the
cleaning sequence).
o Maintenance Error Clear:
Ink is used for the operations such as cleaning as well as printing. Therefore, the
printer wastes certain amount of ink and drains it into waste ink pad, while
counting the amount of the waste ink. Once the amount of the waste ink reaches
the predetermined limit, the printer indicates "Maintenance Error" and the waste
ink pad should be replaced.
n Overflow Counter Limit:
Overflow Counter (Protection Counter A) >=39200
n Timing for Replacing the Waste Ink Pad:
When the total amount of the waste ink reaches the predetermined limit, the
LED indicates "Maintenance Error". (Refer to Section 1.4.4 "Printer
Conditions and Panel Status")
Also, during repair servicing, check the ink counter along with the firmware
version, ink counter, select code page, nozzle check pattern on the status
printing sheet. If the ink counter value is close to its limit, notify your
customer and recommend that the waste ink pad be replaced (If the waste ink
pad is not replaced at that time, there is a possibility that "Maintenance Error"
will occur soon after the printer is returned to the customer). Once you have
the confirmation of the customer, replace the waste ink pad.
n Replacement Procedure: Refer to Section 4.2.5.
n After the Replacement:
Reset the Overflow Counter (Protection Counter A):
Power on printer with Error reset SW and Ink Cartridge exchange SW are
pushed, and push Ink Cartridge exchange SW within error indicator is
blinking
(3 seconds).
Refer to 1.4.3 "Panel Function" for details.
Maintenance

6.1.3 Lubrication

The characteristics of the grease have great affects on the mechanical function and
durability, especially does the characteristics about temperature environment. The type
and amount of grease used to lubricate the printer parts are determined based on the
results of internal evaluations. Therefore, be sure to apply the specified type and
amount of grease to the specified part of the printer mechanism during servicing.
n Never use oil or grease other than those specified in this
manual. Use of different types of oil or grease may damage the
component or give bad influence on the printer function.
n
Never apply larger amount of grease than specified in this
manual.
Table 6-1. Specified Lubricants
Type
Grease
Grease
Overview
Name EPSON Code
G-26 B702600001
G55 1055459
Revision B
Supplier
EPSON
EPSON
119