HP 2500 Service Manual - Page 78
Transfer stage, Step 4: primary transfer
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Transfer stage Step 4: primary transfer The primary transfer roller, to which a dc positive bias is applied, imparts a positive charge on the transfer belt. The negatively-charged toner on the drum is transferred to the positively-charged transfer belt. This procedure is repeated for each color (yellow, magenta, cyan, and black). The dc positive bias is increased for each successive color to make sure that all of the colors adhere to the transfer belt. Figure 29. Step 4: primary transfer 76 Theory of operation C9706-90926
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76
Theory of operation
C9706-90926
Transfer stage
Step 4: primary transfer
The primary transfer roller, to which a dc positive bias is applied, imparts a positive charge on the
transfer belt. The negatively-charged toner on the drum is transferred to the positively-charged
transfer belt. This procedure is repeated for each color (yellow, magenta, cyan, and black).
The dc positive bias is increased for each successive color to make sure that all of the colors
adhere to the transfer belt.
Figure 29.
Step 4: primary transfer