Service Maintenance; Printhead Cleaning; Waste Ink Drain Tank Replacement - Epson 4003353 Service Manual

6.2 SERVICE MAINTENANCE

Certain maintenance is required
quality is observed.

6.2.1 Printhead Cleaning

If print quality deteriorates, dean the printhead using the built-in printhead cleaning function. The
printer also has an automatic printhead cleaning cycle to ensure the proper nozzle operation fix ink
injection as well as to preserve its best condition. Therefbre, perform this printhead cleaning
operation only if print quality dedines, in order to avoid wasting ink.
1. Turn the printer on and press the Paw button to pause the printer. Make sure that the
PAUSE LED is on.
2. Hold down the Att button and press the Lad/E@t button for blackhead cleaning.
Hold down the M buttm and press the Economy/Condensed buttm fir color head
cleaning.
When the panel switch operation is accepted by the printer, the PAUSE LED flashes during the
cleaning cycle. When the cleaning completes, the PAUSE LED stops flashing and returns to the
standby mode.

6.2.2 Waste Ink Drain Tank Replacement

The printer counts the total amount of ink wasted to the waste ink drain tank and this information
is stored in the EEPROM on the main board (Protwt counter A) for the ink system operation
management. If the value of this counter reaches the predetermined value, the printer displays an
error ('Waste ink tank over-flow," see Chapter 1, section 1.4.4, Error Conditions, Table 1-10). When
this error is displayed, replace the waste rnk absorbing materials and reset the protect counter.
the lower case. Reassemble the printer.
2. Turn the printer while holding down the Alt, Font, Lo@E]wt, f%w buttons. This resets the
protect counter.
printer detects an error or when a decline m print
when the
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