Bi Resolution Improvement Technology; Figure 1-14. Effect Of Biritech; Figure 1-15. Ritech Adjustment - Epson C11C605001 - DFX 9000 B/W Dot-matrix Printer Service Manual

General Description

1.4.7 Bi Resolution Improvement Technology

The EPL-9000 printers have BiRITech (Bi Resolution Improvement Technology), which is designed
to improve print quality at 600 dpi and 300 dpi. By this method, the dot map data extracted from
the image data is reassembled to improve print data.
effective when the dot map data fits the development characteristics of the printer mechanism well.
It is therefore necessary to set appropriate values in SelecType.
Note:
depends on the toner condition, it should be adjusted when the imaging cartridge is
replaced or after the imaging cartridge is used for a long time.
When the toner density of area A is almost the same as that of area B (as shown m the figure
below), the RITech setting is at its optimum setting. In other words, the optimum setting is
achieved when it is difficult to distinguish the shape of area A from that of B.
1-32
inch
I
(When 600

Figure 1-14. Effect of BiRITech

default setting is MEDIUM.) Since the J3iRlTech effect

Figure 1-15. RITech Adjustment

1 inch
600
Rev. A