Samsung SCX4521F Service Manual - Page 97

Basic Check List, Print the Information Configuration.

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Page 97 highlights

Troubleshooting 6.1.1 Basic Check List 1. Check the Power. • Does "Warming Up" appear on the display? --> If not check power cable, switch or SMPS. --> Does the wall socket work? • Do the Motors or other components initialize (listen for main motor, fan and LSU sounds)? --> If not or there are none of the normal startup sounds check cable, switch or SMPS. --> Does the wall socket work? 2. Check the LCD Panel. • Is there any display at all? --> If not check power cable, switch or SMPS. --> Does the wall socket work? • Is the display a meaningful message care there any broken or badly formed characters? --> Check the main PBA and cable harness. • Is the message on the LCD Panel a standard error message? --> Refer to section 4.3 3. Check the Paper Path • Is there a Paper Jam? --> Remove any paper fragments caught in the paper path. • Paper Jam occurs repeatedly at a specific point in the Paper Path --> Open the fuser cover, Jam clear. --> Dismantle the machine and carefully inspect the region where the jam occurs. (Especially, check if paper fragments are caught in the Fuser 4. Print the Information Page (Configuration). • Try printing a test page from a computer. --> If there is an error check cables and driver installation. 5. Check the Print Quality. •Is there are a Print Quality Problem? --> Refer to section 6.5 6. Check consumables (toner etc.). •Using the keys print the Test Pattern. --> Expected life of various consumable parts, compare this with the figures printed and replace as required 6-2 Service Manual Samsung Electronics

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Samsung Electronics
Service Manual
Troubleshooting
6-2
6.1.1
Basic Check List
1. Check the Power.
• Does "Warming Up" appear on the display?
--> If not check power cable, switch or SMPS.
--> Does the wall socket work?
• Do the Motors or other components initialize (listen for main motor, fan and LSU sounds)?
--> If not or there are none of the normal startup sounds check cable, switch or SMPS.
--> Does the wall socket work?
2. Check the LCD Panel.
• Is there any display at all?
--> If not check power cable, switch or SMPS.
--> Does the wall socket work?
• Is the display a meaningful message care there any broken or badly formed characters?
--> Check the main PBA and cable harness.
• Is the message on the LCD Panel a standard error message?
--> Refer to section 4.3
3. Check the Paper Path
• Is there a Paper Jam?
--> Remove any paper fragments caught in the paper path.
• Paper Jam occurs repeatedly at a specific point in the Paper Path
--> Open the fuser cover, Jam clear.
--> Dismantle the machine and carefully inspect the region where the jam occurs.
(Especially, check if paper fragments are caught in the Fuser
4. Print the Information Page (Configuration).
• Try printing a test page from a computer.
--> If there is an error check cables and driver installation.
5. Check the Print Quality.
•Is there are a Print Quality Problem?
--> Refer to section 6.5
6. Check consumables (toner etc.).
•Using the keys print the Test Pattern.
--> Expected life of various consumable parts, compare this with the figures printed and replace as required