Samsung CLX-3185 Service Manual page 90

Alignment & Troubleshooting
4.1.6.4 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. If no transmission signal sound is heard, it means the modem part of the main board malfunctioned.
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
SHADING TEST
The function is to get the optimum scan quality by the
specific character of the CIS(Contact Image Sensor).
If the copy image quality is poor, perform this function to
check the condition CIS unit.
< Method >
1. Select the [ADJUST SHADING] at the TECH MODE.
2. Push the SET UP button then an image will be scanned.
3. After the scan, CIS SHADING PROFILE will be
print out.
4. If the printed image is different to the image, the
CIS is defect.
NOTICE : When you test CIS, make sure that the
cover is closed.
4.1.6.5 Report
PROTOCOL LIST
This list shows the sequence of the CCITT group 3 T.30 protocol during the most recent sending or receiving
operation. Use this list to check for send and receive errors. If a communication error occurs while the
machine is in TECH mode, the protocol list will print automatically.
OTHER ITEM
This list provides a list of the user system data settings and tech mode settings.
4-16
Service Manual
Samsung Electronics