The following operators can be used to better focus your queries.
( ) , AND, OR, NOT, W/#
? single char wildcard, not at start
* multi char wildcard, not at start
(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*
This guide provides a more detailed description of the syntax that is supported along with examples.
This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.
Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.
This invention relates to detecting a wide or narrow carriage mechanism in a printer by determining the length of movement of the print head carrier.
English (United States)
This text was extracted from a PDF file.
This is the abbreviated version, containing approximately
93% of the total text.
Page 1 of 1
Wide Or Narrow Carriage Printer Type Detection
This invention relates to detecting a wide or narrow carriage mechanism in a
printer by determining the length of movement of the print head carrier.
A carriage type detection method is illustrated in the Figure and is discussed
below. Upon initialization of the printer, the method is entered and the print head
carrier is positioned at the left side of the frame by finding the home sensor. The
print head carrier is moved to the right a distance equal to the narrow carriage
helix length, and a command is then issued for it to move an additional distance
to the right. If the print head carrier is a narrow carriage, it will not be able to be
moved any further to the right because the print head carriage will be against the
right side frame. If the print head carrier is a wide carriage, then the print head
carrier can be moved an additional distance to the right. After this step, the print
head carrier is returned to the left side frame by again finding the home sensor.
The distance traveled is then determined by counting the number of steps taken
by the carriage.
If the distance traveled is greater than the length of the narrow carriage helix,
the print head carrier is determined to be a wide carriage printer. On the other
hand, if the distance traveled is only the length of the narrow carriage helix, the
print head carrier is determined to be a narrow carriage printer. As a result, the
method can determine whether a pr...