OKI B431
Maintenance Mode. Self-diagnostic mode. Level 1
How to enter the self-diagnostic mode (level 1)
- While pressing the [MENU▲] and [MENU▼] keys simultaneously, turn on the power to enter the system maintenance mode.
- Press the [MENU▲] key or [MENU▼] key several times until the message "ENGINE DIAG MODE" is displayed. Then, press the [OK] key to display "DIAGNOSTIC MODE".
- XXX.XX.XX of the message "DIAGNOSTIC MODE XX.XX.XX" that is displayed on the LCD display area indicates the PU firmware version number. The FACTORY WORKING MODE setup value is displayed in the right of the lower row. S-MODE of "SHIPPING" is displayed normally.
- Press the [MENU▲] key or [MENU▼] key to advance to the desired step of each self-diagnostic menu. (The menu items rotate when either the [MENU▲] key or [MENU▼] key is pressed.)
How to exit the self-diagnostic mode
1. Turn off the power once and back on 10 seconds later.
Menu items of the ordinary self-diagnostic mode are shown below.
| No | Item | Self-diagnostic menu | Adjustment contents |
|---|---|---|---|
| 1 | Switch scan test | SWITCH SCAN | Entry sensor check and switch check |
| 2 | Motor clutch test | MOTOR&CLTCH TEST | Motor and clutch operation test |
| 3 | Test print execution | TEST PRINT | PU built-in test pattern print |
| 4 | Consumable item counter display | CONSUMABLE STATUS | Consumable items consumption status display |
| 5 | Consumable item accumulative counter display | PRINTER STATUS | Consumable items accumulative consumption status display |
| 6 | Factory/Shipping mode selection | FACTORY MODE SET | Switching between the Factory mode and the Shipping mode |
| 7 | FUSE status check | FACTORY MODE SET | Respective FUSEs status display |
| 8 | Engine parameter setting | SENSOR SETTING | Valid/Invalid setups of error detection by various sensors |
| 9 | NVRAM parameter setting | NVRAM PARAMETER | Do not use this item |