Canon Laser Shot LBP-1120, Service Manual

Page: 15 / 117

CHAPTER 1
1 - 8
B. Storage and Handling of EP-22 Cartridge
As time passes, the natural environment will change the cartridge, whether sealed or installed in the printer, or regardless
of the number of prints. The progression of this natural change depends largely on the storage and installation environment,
therefore, take special care on storage and handling the cartridge.
a. Storage of Sealed EP-22 Cartridge Package
When storing EP-22 cartridge in warehouses or workshops, be sure that they are kept within humidity/storage conditions
range shown in Table 1-5-1.
Also note the following:
1) Avoid areas exposed to direct sunlight.
2) Do not place them in locations which are subject to severe vibration.
3) Do not bump or drop the cartridge.
4) Avoid high temperature environment, keep EP-22 cartridge below 35 °C.
Table 1-5-1
Note:
Total storage time is the valid time span following the manufacture date displayed on the cartridge
box.
b. Storage of Unsealed EP-22 Cartridge
Since an organic photoconductor (OPC) is used for the photosensitive drum, intensive light will damage the drum.
Since toner is contained in the cartridge, it is necessary to thoroughly explain the various storage and handling procedures
of unsealed cartridges to customers.
Also, note the following:
1) Avoid areas which are exposed to direct sunlight such as near windows. Avoid leaving the packages in cars for an
extended period of time as high temperatures can damage them.
2) Avoid high temperature and high humidity, and low temperature and low humidity environment. Avoid areas
where the temperature or humidity drastically change such as a location near air conditioners.
3) Avoid dusty areas or locations which emit ammonia or organic solvent gases.
4) Keep EP-22 cartridge below 35 °C
5) Avoid placing the package near CRT displays, disk drive units, or floppy disks.
Normal (total storage time X 9/10)
T
emper
ature
Severe (total storage
time X 1/10)
Air pressure
Temperature change
(within 3 minutes or so)
0 to 35˚C
35 to 40˚C
400˚C 15˚C
-20˚C 250˚C
35 t o 85 % RH
85 t o 95 % RH
10 t o 35 % RH
613 to 1013hPa
(460 to 760 mmHg)
High
Low -20 to 00˚C
Normal (total storage time X 9/10)
Severe (total storage time
X 1/10)
High
Low
Relativ
e humidity