Brother HL-2600CN Service Manual page 356

5. HOW TO RE-ENTER ORIGINAL DATA TO THE MCTL PWB 2
Actions 1) and 2) MUST be carried out BEFORE the MCTL PWB 2 is removed or the
NVRAM initialized otherwise ALL READINGS WILL BE LOST.
1) Go into the Engine Controller Mode. (Refer to Section 3 "ENGINE CONTROLLER
MODE" of Chapter V.)
2) Before initializing the NV-RAM or replacing the MCTL PWB 2, record the following
values;
i) Display TOTAL PAGE to record the value.
(i.e.) TOTAL PAGE (T) = 412P
ii) Display EACH IMAGE to record the values.
(i.e.) EACH IMAGE (IY)=348P
iii) Display NEXT CARE to record the values.
(i.e.) FC ROLL (NC2) = 12,050P
iv) Display LIFE PERIOD SET of FACTORY MODE to record the values.
(i.e.) FC ROLL (LP2) = 12,000P
3) When you have recorded all the values above, initialize the data in the NV-RAM on
the MCTL PWB 2 or replace the MCTL PWB 2.
After initializing all the data in the NV-RAM on the MCTL PWB 2, or replacing the MCTL
PWB 2, all the original counter values for the cleaning roller, OPC belt cartridge, fusing
unit, and 120K kit should be re-entered as below;
The method used to correct the counters is to reset the page counter to a calculated
TOTAL PAGE value and then to perform a CLEAR CARE for the item to reset the NEXT
CARE for that item to the value recorded in 2) iii).
The basic formula used in these calculations is:-
Where this formula would result in a negative number, the LIFE PERIOD should be
temporarily set to a lower value so that the result is a positive number and then this
number and LIFE PERIOD used to perform the CLEAR CARE to reset the NEXT CARE
counter.
(IM)=353P
(IC)=365P
(IK)=439P
BL UNIT (NC7) = 49,135P
FU UNIT (NC8) = 39,684P
120K KIT (NC9) = 120,000P
BL UNIT (LP7) = 50,000P
FU UNIT (LP8) = 60,100P
120K KIT (LP9) = 120,000P
TOTAL PAGE = NEXT CARE - LIFE PERIOD
CAUTION
A-9