Epson Stylus Photo R800 Service Manual page 28

EPSON Stylus Photo R800
Initial ink filling
When the printer is powered on for the first time after the purchase of the
product, the printer executes the initial ink filling operation to fill the ink
cavities of the Head with ink. When the initial ink filling operation is
performed properly, the printer clears the flag in the EEPROM so that initial
ink filling operation will not be performed when it is powered on next. The
Stylus Photo R800 requires about 150 seconds to perform the initial ink
filling operation and consumes about 1/ 7 of the new ink cartridge.
If the sequence does not end normally during initial filling, the initial filling
flag is not cleared and the CL operating flag is set. Because of these flags,
when powered on next time, the printer assumes that it was powered off for
some reason during initial filling and executes CL3 instead of the initial
filling sequence. (On the conventional mode, initial filling was executed
again. However, when this operation was performed, ink was wasted and
therefore CL3 is executed to cover the ink filling performance.)
When the initial filling flag is set and the CL operating flag is not set, the
printer assumes that the initial filling was not executed at all (power was
switched on but the cartridges were not set), and when the printer is
powered on next time, it executes initial filling.
Change cleaning
Change CL1 is executed when Ink Cartridge change is made.
Change CL1: 3.4g (0.425g per color)
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OPERATING PRINCIPLES
Manual cleaning
This product provides three different manual cleanings to remove ink
coagulated by air bubbles, viscous material or foreign matter. Perform the
following manual CL operations by operating the panel or using the utility
included in the printer driver.
Independently of the printing path after the previous CL, perform manual
CL from CL1 to CL3 in order if the cumulative printing timer counter is less
than 7min. Only when the cumulative printing timer counter is more than
7min, execute only CL1.
CL1: 1.704g (0.213g per color)
CL2: 4.488g (0.561g per color)
CL3: 7.120g (0.890g per color)
Wiper operation
Clean the nozzle surface with the right-half rubber part of the wiper.
Flushing operation
Prevent color mixture. Stabilize the ink surface inside the nozzles.
If the remaining ink amount of the I/C is short or the I/C is in an Ink Low/Out
status, all manual cleanings are disabled and STM3 shows the condition.
Printer Mechanism
Revision A
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