EPSON Stylus PHOTO 810/820/830

Revision B

„CL1"

-Ink absorption

Black Ink: 0.52g, Color Ink: 2.58g

-Wiping operation

Wipes the nozzle plate by the rubber part on the Cap unit.

-Flashing operation

Prevents color from mixing and stabilizes ink surface inside the nozzle.

„CL2

-Ink absorption

Black Ink: 0.18g, Color Ink: 0.92g

-Wiping operation

Wipes the nozzle plate by the rubber part on the Cap unit.

-Flashing operation

Prevents color from mixing and stabilizes ink surface inside the nozzle.

In case that the manual CL and the nozzle check pattern printing is alternately performed, the CL order is CL1 → CL1' → CL2. (In case that the printer keeps the power off condition more than the specific period, the CL order is CL2 → CL1 → CL1' → CL2 → CL1'' → CL2 → CL1 → CL1'.)

Like the previous printers (Stylus COLOR 480/580), CL1 is selected automatically and performed In case that any printing operation is not performed between each manual CL. Additionally, if the manual CL is performed with over 5 pages printing cycle, CL1 is always selected and performed.

Additionally, if either black or color I/C is ink low or end condition, any manual cleaning is prohibited and it is displayed on the LED indicators.

†Timer Cleaning

Like the previous printers (Stylus COLOR 480/580), this printer dose not have Timer IC and Lithium battery which is used for the backup power source for Timer IC. So, this printer manages the printer off period or cleaning cycle by using the following method.

The printer driver sends the timer command to the printer before printing. The timer command is generated based on the PC's timer and it consists of year, month date, hour, minute and second. As soon as the printer receives the timer command from the printer driver, the printer stores its command in address 04 <H> and 05 <H> in the EEPROM. Then, it is compared with the latest CL time which is stored in address 02 <H> and 03 <H> in the EEPROM. And, In case that the timer

cleaning period is over the specific period, the printer performs the timer cleaning automatically. In this time, the printer stores the timer command in 02 <H>, 03 <H>, 04 <H> and 05 <H> of the EEPROM.

Maximum 0.503 ml of the ink is consumed in the timer cleaning. (0.083ml of black ink and 0.42ml of color ink are consumed.)

†Flashing

This printer performs the following two kinds of the Flashing for the following purpose.

„Periodical Flashing

This is due to avoid the increment of both ink’s viscosity in the printhead nozzle during the continuous printing and the specific small amount of the ink is ejected in the cap based on the periodical flashing timer.

„Periodical large amount Flashing

This is due to avoid the increment of black ink’s viscosity in the printhead nozzle during the continuous printing and large amount of the ink is ejected in the cap based on the periodical large mount flashing timer.

Operating Principles

Overview

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