Alignment & Adjustments
Service Manual
4-19
Samsung Electronics
4.4.3.1 Clear Counters
The following counters can only be cleared in TECH MODE. They are
accessed through the Data Setup menu.
4.4.3.2 Flash Upgrade
FLASH memory is upgraded in the same way as Firmware. See Page 4-22.
4.4.4 Machine Test
SWITCH TEST
Use this feature to test all keys on the operation control panel. The result is displayed on the LCD window each
time you press a key.
MODEM TEST
Use this feature to hear various transmission signals to the telephone line from the modem and to
check the modem, amplifier and speaker. If no transmission signal sound is heard, it means the
modem part of the main board, amplifier, speaker or speaker harness is faulty.
DRAM TEST
Use this feature to test the machine's DRAM. The result appears in the LCD display.
If all memory is working normally, the LCD shows << O K >>
ROM TEST
Use this feature to test the machine's ROM. The result and the software version appear in the LCD display.
• FLASH VER : 1.00 V
• ENGINE VER :1.00V
PATTERN TEST
Using this pattern printout you can check that the printer mechanism is functioning properly.
This function is for factory manufacturing use only.
SHADING TEST
The function is used to set the optimum scan quality
determined by the specific characteristics of the CCD
(Charge Coupled Device). If copy image quality is poor
perform this function to check the condition of the CCD unit.
< Method >
1. Select the [Shading Test] in TECH MODE (Menu, #, 1934).
2. Push the ENTER button and an image will be scanned.
3. After scanning the CCD SHADING PROFILE will be print out.
4. If the printed image is different to the sample image shown
the CCD is defective.
NOTICE : When you test the CCD, make sure that the
cover is closed.
Total page Count : XXXXX
FLT Scan CNT : XXXXX
ADF SCAN CNT : XXXXX
Used Drum CNT : XXXXX
Used Toner CNT : XXXXX
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