T RO U B L E S H O OT I N G
7.1.7 Uneven Density
•Description Print density is uneven between left and right.
| Check and Cause |
| Solution |
|
|
|
|
1. | The pressure force on the left and right | 1. | Replace both the left and right Spring |
| springs of the transfer roller is not even, |
| Holder. |
| the springs are damaged, the transfer |
|
|
| roller is improperly installed, or the trans- |
|
|
| fer roller bushing or holder is damaged. |
|
|
2. | The toner level is not even on the devel- | 2. | Occur in the developer cartridge, replace |
| oper roller due to the bad blade. |
| the developer and try to print out. |
|
|
|
|
7.1.8 Background
• Description
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Light dark background appears in whole area of the printing.
Check and Cause | Solution |
|
|
1. Does character exist less than 2% | 1. The toner cartridge is basically |
per a page, and hasn’t it been used | designed to print 3,000 sheets with |
long time? | 5% image. If it prints more than |
| 3,000 sheets (around 5,000 sheets) |
| with 2% image, a background can be |
| occurred. |
2. Does recycle paper be used? | 2. The B/S is not guaranteed if using |
| recycle paper. |
3. Has the life span of the developer | 3. Replace the developer when the life |
ended? | span of it has been ended. |
4. Is the movement(Up and Down) of | 4. Clean the bushing part of the transfer |
the transfer roller smooth? | roller. |
5. Is the HVPS normal? | 5. If the problem is still not solved, |
| replace the developer. |
|
|
Service Manual
Samsung Electronics
