Print cartridge
This printer has one print cartridge that holds magnetic, single-component toner. In addition to the toner,
the cartridge contains a developing cylinder, toner-feed roller, and stirrer. The developer motor rotates
these parts so that the print cartridge can deposit toner to form a visible image on the photosensitive
drum.
The print cartridge in this printer includes the photosensitive drum, the primary charging roller, and the
developing roller. The cartridge performs these functions:
●
Memory-tag control
●
Developing-roller engagement and disengagement control
M
Memory tag contact
Memory tag
Photosensitive drum
DC controller PCB
MAIN MOTOR DRIVE signal
TONER LEVEL signal
Memory data
Main motor
Figure 4-15 Print cartridge
Print-cartridge activation
A memory tag is a nonvolatile memory that is built into the print cartridge. The DC controller reads and
writes data that is stored in the memory tag. The DC controller reads data at the following times:
●
When the power is turned on
●
When someone closes the front cover
●
When it receives a command from the formatter
ENWW Image-formation system 63
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