Canon PC-D340 - Test Functions Overview; Test Mode Overview and Available Tests

PC-D320/PC-D340/FAX-L400 Chapter 4: Maintenance and Service
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6. TEST FUNCTIONS
This machine functions for testing individual operations, such as below.
6.1 Test Mode Overview
Test mode can be executed by following the menu items from the display.
a) D-RAM tests
Writes data to DRAM image storage areas and reads that data to check operations.
b) Print test
Print patterns within the print area.
c) MODEM, NCU test
The frequency test, G3 signal transmission test, and Tonal and DTMF signals reception
tests, and V.34 G3 signal transmission test.
d) Faculty tests
Test the sensor functions and operation of operation panel.