Test Mode (Test Mode); Overview - Canon GP160DF Service Manual

CHAPTER 4 SERVICE MODE
E.

Test Mode (TEST MODE)

1.

Overview

The test mode runs according to the menu items shown on the display.
The test mode items are divided into 8 blocks.
D-RAM test <1:DRAM>
Checks if data reading and writing to the D-RAM is operating normally.
CCD test <2: CCD TEST>
Used when correcting the variations in sensitivity of the CCD's photosensitive cells.
PRINT test <3:PRINT>
Prints 8 patterns within the printing area.
MODEM NCU test <4:MODEM NCU>
Performs relay operations test, modem DTMF, tonal signal transmission and receiv-
ing tests.
AGING test <5:AGING TEST>
Illuminates the scanning lamp and drives the ADF document transport motor in fine
mode. The printer continuously prints a diagonal line pattern in fine mode and charac-
ters in normal density.
FACULTY test <6:FACULTY TEST>
Used when checking operations of the microswitcher, sensor, speaker and ADF
functions.
DATA SET <7:DATA SET>
Do not touch. This mode is for factory use only.
BOOK test <8:BOOK TEST>
Operates at the speed for the scanning transmission image quality LED.
Warning:
Do not use the DATA SET mode. If you enter the DATA SET mode, the registration
data will be changed automatically.
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