Samsung CLX-330x Series Service Manual page 90

4. Alignment and Troubleshooting
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Modem Speed
You can set the maximum modem speed. Communication is done with modem speed automatically set at lower speed
when communicating with a slower speed modem since communication is done on the standard of the side where
modem speed is low for transmission/reception. It is best set 33.6 Kbps as default setting.
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Error Rate
When the error rate is about exceed the set value, the Baud rate automatically adjusts to 2400 bps. This ensures that the
error rate remains below the set value. You can select the rate between 5% and 10%.
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Clear All Memory
The function resets the system to factory default settings. This function is used to reset the system to the initial value
when the product is functioning abnormally . All the values are returned to the default values, and all the information,
which was set by the user, will be erased.
NOTE
Always perform a memory clear after replacing the main board. Otherwise, the system may not operate properly.
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Toner Low Level
The function is to set up the time to inform toner low status. This function can provide user convenience for replacing
the toner cartridge.
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Clear Count
This function resets the count value you select.
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Engine Footer
This function is for monitoring of the engine status. If you perform this function, at printing, the setting value for engine
is shown on the bottom of the printed page.
d) Machine Test
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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.
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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.
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Dram Test
Use this feature to test the machine's DRAM. The result appears in the LCD display.
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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.
e) Report
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Protocol Dump
Protocol 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.
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Supplies Info
Supplies Information Report shows toner cartridge information such as toner remaining, toner capacity, toner product
date etc.
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