Timers And Counters - Epson Stylus COLOR 800 Service Manual

EPSON Stylus &2/25 800

2.4.2 Timers and Counters

This printer is equipped with numbers of timer counters, soft counters and flag. Their values, which are
mostly stored in the EEPROM, are the basis for selecting the ink sequence to be performed.
‰CL Timer (Set individually for the black and color inks.)
CL Timer manages auto cleaning. It remains active while the printer power is off and is reset when the
cleaning sequence is executed.
‰Accumulated Printing Timer (Set individually for the black and color inks.)
This timer accumulates the period of time spent for printing. The value of this timer is not cleared after
the printer is powered off. This timer is activated when the cap is removed and pauses the job when
the printer goes into the waiting status. The value of this counter is reset when the Ink Absorbing
operation is executed.
‰Power Off Timer
This timer monitors how long the printer power is off.
‰Ink Counter RB, Ry (Set individually for the black and color inks.)
This counter monitors the amount of ink used in the cap during the Flushing operation. The value is
stored after the printer power is turned off. When the value exceeds the specified value, the printer
performs the False Absorbing operation and then resets the counter.
‰CL2 Counter KKb, Kky (Set individually for the black and color inks.)
The printer uses the value on this counter for the basis of determining the manual cleaning sequence
order operated thorough the control panel. A cleaning is usually performed in the order of CL1, CL1',
and CL2. This printer, however, doesn't necessarily follow this order depending on the numbers of
pages printed after the latest cleaning sequence was performed.
‰Protect Counter A
This counter monitors the total amount of ink drained into the wast ink drain pads. When the value
exceeds the specified value (counter value:49000), the maintenance error occurs. This counter is
reset by performing the EEPROM reset operation.
‰Ink Consumption Counter Cb, Cy, Cm, Cc (Set individually for the black and color inks.)
Each counter counts the amount of ink consumed thorough out the printing, cleaning, and Flushing
operations after the ink cartridge is installed. The printer or the EPW indicates the Ink low and Ink end
status according to the value on this counter. Even though the printer is turned off before a cleaning
sequence compoletes, the printer regards the job as a full cleaning and adds the specified value of the
cleaning to the consumption counter. This counter is reset when the cartridge is removed only in the
Cartridge replacement operation mode which is selected by the Panel Operation.
Ink low counter
Ink end counter
2-22
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Table 2-13. Ink Consumption Counter
Black ink cartridge
7
37.6×10
7
41.6×10
Color ink cartridge
7
17.2×10
7
19.2×10
Rev. A