Samsung SCX-4200 Series - 4 Alignment and Adjustments; Engine Test Mode

Alignment and Adjustmens
Samsung Electronics
Service Manual
4-1
4
4
4. Alignment and Adjustments
This chapter describes some of the main service procedures including:
Using the EDC mode; Clearing paper jam and test patterns.
Much of this chapter is also included in the user's guide.
4.1 Engine Test Mode
The Engine Tests Mode supplies useful functions to check the condition of the engine. It tests the condition of
each device and displays the result of the test on the LCD. It is classified into 5 functions (0~4), and are shown
below.
4.1.1 To enter the Engine Test Mode
To enter the Engine Test mode
Press “ Menu -> Copies -> -> Menu -> ” in sequence, and the LCD briefly displays
'Engine Test [Diagnostic]', the machine has entered Engine Test Mode.
• To enter a lower menu (Sub menu) Press the Start/Enter key.
• To exit into an upper menu Press the Menu/Exit key.
• To return to the user menu Press the Menu/Exit key.
4.1.2 Diagnostic
Main Menu Engine test Remark
ENGINE TEST Motor Test 1 : On, 2 : Off
MTR FAN SOL ETC PickUp Test 1 : On, 2 : Off
Fan Test 1 : On, 2 : Off
Manual Clt Test 1 : On, 2 : Off
PTL Test 1 : On, 2 : Off
ENGINE TEST LSU Motor Test 1 : On, 2 : Off
LSU TEST LSU Hsync Test 1 : On, 2 : Off
LD Test 1 : On, 2 : Off
ENGINE TEST Feed Sen Test Check : Check Start
SENSOR TEST Next : Next Sensor Check
Exit Sen Test Check : Check Start
Next : Next Sensor Check
Cover Sen Test Check : Check Start
Next : Next Sensor Check
Empty Sen Test Check : Check Start
Next : Next Sensor Check
Manual Sen Text Check : Check Start
Next : Next Sensor Check
ENGINE TEST Therm ADC 220~85 1 : On, 2 : Off (maintain the fusing temp. 65C~230C)
HEAT TEST
ENGINE TEST MHV Test 1 : On, 2 : Off (-1550V ± 50V)
HVPS TEST Dev Bias Test 1 : On, 2 : Off (-430V ± 20V)
THV EN/NEG Test 1 : On, 2 : Off (-1000V +300V/-150V)
THV ON (1300V) 1 : On, 2 : Off (+1300V ± 20V)
THV ADC 1300V 1 : On, 2 : Off
THV ADC 600V~3550V 1 : On, 2 : Off (Compare each ADC Value)