Canon CLBP-460PS, Service Manual, Page: 33 / 566

D. Storing and Handling Cartridges and ITB unit
The toner cartridges, drum cartridge and ITB unit can be affected by the environment and
changes over time whether it is still sealed in the box or installed in the printer, regardless of
the number of prints. Since the pace at which it changes depends on the installation and stor-
age environments, be very careful in storing and handling cartridges and ITB unit.
1. Storage of sealed cartridges and ITB unit
When storing the toner and drum cartridges and ITB units in a warehouse or workshop, main-
tain the conditions given in Table 1-5-1. Note the following:
1) Keep the cartridges and ITB unit out of direct sunlight.
2) Keep them away from areas where they may be subjected to strong vibration.
3) Do not bump or drop cartridges.
Table 1-5-1 Storage conditions
Note: “Total storage time” in the table is a year from the date of manufacture shown on the
cartridge package.
2. Storage of unsealed cartridges and ITB unit
A drum cartridge contains a photosensitive drum coated with an organic photoconductor (OPC)
that deteriorates when exposed to strong light. A toner cartridge contains toner. A dirty or dam-
aged belt of the ITB unit reduces the print quality. Advise the customer about correct storage
and handling of cartridges and ITB unit.
a. Storage requirements after unsealing
1) Store the cartridge in its protection bag.
2) Avoid places in the sun or near windows. Do not leave a cartridge in a car for a long time,
as the inside of the car can get extremely hot.
3) Avoid places that get too hot, too cold, or too humid. Also avoid places where the tempera-
ture can change suddenly.
4) Avoid places exposed to harmful gases (insecticide, etc.) or salty air.
5) Store the cartridges and ITB unit in the temperature range 0 to 35°C.
6) Keep cartridges away from computer CRT displays, disk drives, and floppy disks.
7) Keep cartridges out of reach of children.
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CHAPTER 1
Normal (total storage time X
9/10)
T
emperatur
e
Severe (total storage
time
X 1/10)
Air pressure
Temperature change (within
3 minutes or so)
0 to 35
°
C
35 to 40
°
C
40
°
C
→
15
°
C
±
20
°
C
→
25
°
C
35 to 85% RH
85 to 95% RH
10 to 35% RH
613 to 1013 hPa
(460 to 760 mmHg)
High
Low
±
2 0 to 0
°
C
Normal (total storage time X
9/10)
Severe (total storage
time
X 1/10)
High
Low
Relative
humidity