Toner sensor problems

Nov 13, 2007

- yes tranfer belt must be removed, two little clips at paper exit then lift via blu handle

Nov 14, 2007

- OK I've got my head around which OKI you have, there are so many and thet are so simular looking but each has it way, you have the old large A3 one, that thinks it is clever, with hard drive option, these still do the error I explained before but there is another story yet to be told...
....now here comes what I think is your answer, I can feel it in my bones, make sure you post back and tell me...
..The toner counters will only be reset if a new toner cartridge is installed after the printer has displayed toner low. Installing a new toner cartridge before this message is displayed will have no effect on the counters. So maybe this happened and now the counters are wrong and have reached the upper point thus telling printer to hang on something is wrong....so
You could if brave and if you think this may be the case do a consumable reset...do each step properly and all will be reset to 100% life all drums and toners, that means that the indicators will all think they are full regardless of consumable actual status, so toner later will run out before machine prompts you with toner low, but counters will reset each time you replace a consumable when machine requests it.
1) - Power ON printer while holding both the + & - buttons until “OKIUSER” message appears in LCD.
2) - Press + or – button until “ENGINE DIAG MODE” is displayed.
3) Press "ENTER", displayed will be "DIAGNOSTIC MODE XX.XX.XX S-MODE"
4) Press + or – button until “NV-RAM INITIAL” is displayed.
Half way, dont stop too long it will time out....
5) Press "ENTER" again.
6) Will appear "TABLE 1" message.
7) Press "ENTER" until "EXECUTING RESET" message appear. ...............the "NV-RAM INITIAL" message will BLINK.
Tada....This procedure reset TONER, DRUM, FUSER and BELT...life counts
8) power OFF printer, wait 10 sec, and power ON again..
P.S. (not related to problem but to 9300 viewers of future)
To access Service Mode in C9300 power ON printer with 0, 1, 6, 7 at same time...you can do some good damage in there!! (I warned ya!)

Nov 15, 2007

- Yes op menu is good, can you then cycle threw menu till u see engine or diagnostic mode? Continue with steps as posted if possible, if not let me know and I'll go and drag a old one down and plug it in to post exact wording.

Nov 15, 2007

- NEW INSTRUCTIONS: cause OP Menu is wrong menu, sorry, there are just too many OKI's so simular but all different and I dont see these often anymore, they have just about died off now.

Resetting consumables for OKI C7300,C7500,C9300 printer I think!

1. Hold buttons 0 + 1 + 6 + 7 on startup.

2. Press button 0 several times until "DIAGNOSTIC MODE xx.xx.xx" shows.

3. Hold buttons 2 + 3 until "ENGINE DIAG LEVEL 4" shows.

4. Press button 1 to scroll to "COUNTER SET".

5. Press button 2 to scroll through menu items (button 6 scrolls backwards) You want the "M TONER COUNTER"

6. To alter the value of an item, first press button 3 to select the digit to be altered. The selected digit will slowly flash. (Button 3 moves to the right through the digits. Button 7 takes you to the left.)

7. Then press button 2 to increase the value of the selected digit. Press button 6 to decrease the value.

8. When the changes have been made hold buttons 1 + 3 + 5. The screen will flash three times and then an * will appear on the right of the screen. The new value is set.

9. To leave the counter set menus, turn the printer off.
IMPORTANT

Each colour toner counter shows life as percentage used. So a toner showing 30% has used up 30% of its toner. 100% would indicate a near empty toner. This is the reverse of the toner life shown from the "usage menu" when the printer is in normal operation, which shows the toners as a percentage life remaining. You will want toner showing 00%.

Nov 15, 2007

- Sorta Yeah... it might be called Magenta dot counter

Nov 16, 2007

- Instead of step 3 change it to

3) HOLD 0 + 4 "ENGINE DIAG LEVEL 2" shows

4) Press 1 to cycle to "fuser unit"

5) 2 to scroll to MAGENTA TONER

REST IS SAME WE WANT TO SET WHAT i GUESS IS AT 100% TO 0%.

no wonder I always hated this model, japanesse english instructions are hard to understand.

Nov 16, 2007

- oops make that Cyan not Magenta...see I'm becoming japanesse myself!

Nov 16, 2007

- When you change a toner is should do this reset automaticly, but I've had many customers tell me it doesn't if it is replaced before machine says replace toner, it starts by just saying toner low or order toner, but one should wait untill they see replace...

OKI are painfull to work on but are better on later models, their print quality is great.

Dec 02, 2007

- Thanks for rating!