Toshiba FC-22 manual Such as screws on the table

* Notes on the Preventive Maintenance Checklist

∗1. Doctor blade cleaning

(a)Cleaning every 30K

Note: This cleaning should be done prior to “automatic removing of developer material”.

(1)Open the front covers, and turn the lever to

the right to make the transfer belt unit move down.

(2) Remove the toner cartridges (Y, M, C, K).

(3) Remove the processing unit (EPU) and place it on a flat table.

Note: Make sure there are no projections or parts

such as screws on the table.

(4) Pull out the drum thermistor.

(5)Disengage 4 latches of the developer unit

cover gently and lift the cover up slowly.

Note: Be careful not to allow the developer mate- rial deposited on the back of the cover to drop into different-color developer units. (To avoid this problem, put paper over the other developer units not being cleaned now.)

(6)Insert the doctor blade cleaning jig between the doctor blade and the sleeve, and move

the jig along the blade edge back and forth; make 3 return movements to clean the doctor blade.

(7) Reinstall the developer unit cover and the drum thermistor.

(8) Do steps (4) to (7) for developer unit K or units Y, M and C.

(9) Reinstall the EPU into the machine, and raise the transfer belt unit.

(10)Perform the automatic removing of developer material (adjustment mode 05-392:K, 391: Y, M, C).

January 2000 © TOSHIBA TEC 2 - 9 FC-22 PREVENTIVE MAINTENANCE