Sharp MXC401
Adjustment. 1-B Adjust the developing bias voltage
This adjustment is needed in the following situations:
- When the MC high voltage power PWB is replaced.
- U2 trouble has occurred.
- The PCU PWB has been replaced.
- Go through the modes specified in Simulation 8-1.
- Select an output mode and an item to be adjusted.
- Enter the adjustment value (specified value) in the middle speed mode, and press [OK] key. (For the 4.3 Inch LCD model, press the OSA shortcut key.)
When [EXECUTE] key is pressed, the voltage entered in the procedure 3 is outputted for 30sec and the set value is saved. When [EXECUTE] key is pressed, the output is stopped. Enter the adjustment value of each mode which is specified on the label attached on the MC high voltage power PWB.
NOTE:
Note that the adjustment value may differ depending on the MC high voltage power PWB. Since the adjustment value label is attached on the MC high voltage PWB, the PWB must be removed in order to check the adjustment value. This is a troublesome procedure. Therefore, it is advisable to put down the adjustment value in advance.
| Mode | Item/Display | Content | Setting range | |
|---|---|---|---|---|
| MIDDLE | A | MIDDLE SPEED DVB_K | K developing bias set value at middle speed | 0-600 |
| B | MIDDLE SPEED DVB_C | C developing bias set value at middle speed | 0-600 | |
| C | MIDDLE SPEED DVB_M | M developing bias set value at middle speed | 0-600 | |
| D | MIDDLE SPEED DVB_Y | Y developing bias set value at middle speed | 0-600 | |
| LOW | A | LOW SPEED DVB_K | K developing bias set value at low speed | 0-600 |
| B | LOW SPEED DVB_C | C developing bias set value at low speed | 0-600 | |
| C | LOW SPEED DVB_M | M developing bias set value at low speed | 0-600 | |
| D | LOW SPEED DVB_Y | Y developing bias set value at low speed | 0-600 | |
DVK:XXX DVC:XXX DVM:XXX DVY:XXX
When the adjustment value (specified value) of the middle speed mode is set, the adjustment values of the other modes are automatically set according to the middle speed mode setting in a certain relationship.
NOTE:
Since the high voltage output cannot be checked with a digital multi meter in this model, a judgment of the output must be made by checking the print image quality.