MX-2640N, MX-2640NR, MX-2640FN, MX-3140N, MX-3140NR, MX-3140FN, MX-3640N, MX-3640NR, MX-3640FN (serv.man36). Service Manual Revised June 2014. - Sharp Copying Equipment Service Manual (repair manual). Page 25

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MX-3640N  CONSUMABLE PARTS  3 – 6
The lot number is 8 digits in length. Each digit indicates the content
as follows.
The number is printed on the right under side of the back surface of
the developer bag.
C. Toner cartridge
The  label  indicating  the  management  number  is  attached  to  the
side of the toner cartridge.
: Unit code/Model name
: Color code (Black: BK /Cyan: CY /Magenta: MA /Yellow: YE)
: Destination
: Skating
: Production place
: Production date (YYYYMMDD)
: Serial number
: Version number
5. Environmental conditions
1:
Alphabet
Indicates the production factory.
2:
Number
Indicates the production year.
3/4: Number
Indicates the production month.
5/6: Number
Indicates the production day.
7:
Hyphen
8:
Number
Indicates the production lot.
BK
C. M .Y
2
1
4
3
6
5
8
7
Standard environmental 
conditions
Temperature
20 – 25 °C
Humidity
65 ± 5 %RH
Usage environmental 
conditions
Temperature
10 – 35 °C
Humidity
20 – 85 %RH 
Storage period
Toner/Developer: 24 months from the 
manufactured month (Production lot) under 
unsealed state
Drum: 36 months from the manufactured month 
under unsealed state
85%
60%
20%
10°C
30°C
35°C
Humidity (RH)
Temperature
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