Table of Contents
Advertisement
PRINTER
2.2.5 INK LOW CONDITION
The machine does not have an ink end detection mechanism, but it can detect an
"ink low" condition.
The printer engine counts the number of ink drops to calculate the cartridge
replacement timing. When the machine determines that approximately 85% of the
ink has been used, the machine displays the "INK LOW" message.
When a new cartridge is installed, the machine asks the user whether the
cartridge is new or used. If the user selects "Yes" to the "NEW INK Y/N?"
message, the machine initializes the counter. If the user selects "No" to the
message, the machine continues counting ink drops without initializing.
Therefore, the accuracy of the counter is quite important. If the user initializes the
counter accidentally, ink-end may only be determined by looking at the print
output. (This may easily happen when the user changes the cartridge from black to
color and vise versa.)
NOTE: 1) The printer engine has separate counters for black cartridge and color
cartridge. Their internal circuits are different, and the machine detects
the difference to determine which counter is present.
2) The counters, CURRENT-0, 1 and 2, listed on the system parameter list
are not used for detecting ink-low condition. These are just the latest
three records of ink cartridge replacements.
2-4
31 March, 1997
Advertisement
Table of Contents
