List four things to try when troubleshooting poor print quality with an inkjet printer.
What will be an ideal response?
Check that the correct paper for inkjet printers is being used. Check if the ink supply is low, or if is there a partially clogged nozzle. Remove and reinstall the cartridge. Follow the printer's documentation to clean each nozzle. Check if the print head is too close to or too far from the paper. There is a little sponge in some printers near the carriage rest that can become clogged with ink. It should be removed and cleaned. If you are printing transparencies, try changing the fill pattern in your application. Missing lines or dots on the printed page can be caused by the ink nozzles drying out, especially when the printer sits unused for a long time. Follow the directions given earlier in the chapter for cleaning inkjet nozzles. Streaks or lines down the page can be caused by dust or dirt in the print head assemblage. Follow the manufacturer's directions to clean the inkjet nozzles.
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Which of the following statements is false?
a. If several synchronized statements in different threads are trying to execute on an object at the same time, only one of them may be active on the object—all the other threads attempting to enter a synchronized statement on the same object are placed in the blocked state. b. When a synchronized statement finishes executing, the object’s monitor lock is released and one of the blocked threads attempting to enter a synchronized statement can be allowed to acquire the lock to proceed. c. Java also allows synchronized methods. Before executing, a synchronized instance method must acquire the lock on the object that’s used to call the method. d. Using a synchronized block to enforce mutual exclusion is an example of the design pattern known as the Java Exclusion Pattern.
The program specification is a clear statement of the goals and objectives of the project
Indicate whether the statement is true or false
Which of the following is the first order of operations?
A) Expressions within parentheses B) Division C) Exponentiation D) Multiplication
Types of e-commerce
What will be an ideal response?