HP — 4.2 Cleaning the charging corona unit

hp Color 9850mfp PROCESS UNIT 3. Remove a charging cleaning block [3] from the charging suction assembly [2] provided on the [3] [1] outside of the toner supply unit [1]. Note: • There are two charging cleaning blocks pro- use either of these two blocks when vided on the toner supply kit. Be sure to cleaning the charging corona. [2] 4. Holding the charging corona unit [2] so that the charging grid plate [1] comes up, set the charging cleaning block [3] to the notch and [1] III DIS./ASSEMBLY insert it from under the bottom on the rear side, and turn it about 45° clockwise. Note:

[2] • If the charging wire is cleaned with the charg- ing grid plate facing down, there is a risk that dust that has stuck to the charging wire sticks to the charging grid plate. So, when cleaning the charging wire, be sure to hold the charging corona unit so that the charging grid plate comes upward. 5. Clean the charging wire [4] by sliding back and forth the charging cleaning block [3] 65AA -251 0KC. 6. Reinstall the above parts following the removal steps in reverse. [3] 3-31