Epson 4003353 - Manual (Page 57)

Service Operating Principles
2.4.1.6 Refresh Operation
operation prevents an increase in the viscosity of head ink. This operation is activated by
the signal that occurs automatically every 2 seconds (blackhead) or 7 seconds (color head).
If 3 seconds elapses after an signal, this operation is performed immediately. Also, if
10 seconds elapses, the printer enters the standby mode.
1. Moves the carriage to the flushing position. (If only the black head is being flushed, moves the
black head on the cap position.)
2. The blackhead performs the flushing operation in accordance with excess time from before
refresh operation, and color head performs the 12-pulse flushing operation.
3. If the value of ink counter R or if the timer of fail absorption is over the setting value, performs
the fail absorbing operation when the next paper ejecting operation is completed.
4. Returns to the previous operation.
2.4.1.7 Standby Operation
This operation prevents an increase in the viscosity of the head ink. It is performed automatically if
no data is received for more than three seconds.
1.
2.
3.
4.
5.
Moves the carnage to the flushing position.
Counts the number of the flushing operations from the last standby operation, using the
combined print counter N, and
the flushing based on this counter value.
Moves the carriage to the home position.
If paper is not loaded, sets the carriage lock. To ensure the paper feed precision, the carriage
lock is not
if paper is loaded.
Waits for print data. (Depending on the value of ink counter R, the fail absorption be
performed at this time.)
2.4.1.8 Fail Absorbing Operation
This operation absorbs ink inside the cap, and eliminates the’ ink of the nozzle plate. There are two
patterns in this operation.
■ After performing the ink absorption: .
1.
2.
4.
5.
6.
7.
8.
Moves the carriage to the fail absorption position.
Performs the fail absorbing operation
the black or
Moves the carriage the flushing position..
Performs the
absorption for the cap. .
If the pump motor rotated in step 4, resets the wiper; this step is not necessary
if the pump motor rotated CW.
Releases the pump unit.
‘
Releases the D/E lever.
t
Moves the carriage to the home position.
■ Fixed time fail absorbing:
1. Moves the carriage to the flushing position.
2. Performs the ink absorbing operation inside the black cap.
3. Performs the ink absorbing operation inside the color cap. .
4. Releases the pump unit.
5. Moves the carriage to the home position.
Rev. A
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