9.13 User and Service Tools
• The data for the user and service tools will be cleared if the main control board is replaced. Write down the set data and
use it in that case. The data in user tool [1] "Total sheets copied", [9] "User access code", service tools [3-01] to [3-07]
must be cleared in order to reset RAM on the main control board and start up the use of these modes.
• The "Actual Target T.D." value shown in service tool [4-02] is changed in a range of ± 0.74 volts from the "Setting Target
T.D." value according to the ID sensor output. Therefore, if the "Setting Target T.D." is abnormal, a proper level of the
target to control the toner density might not be obtained. Do not press the "Developer Forming "key in service tool [4-02]
without carrying out setting C. (The "Developer Forming" key in service tool [3-04] does not change the "Setting Target
T.D.")
• Since the utility mode functions are not standard to the machine, the customer’s approval is required when they are set.
• Do not set any modes not mentioned in the utility mode table. The machine might not work properly.
9.14 LCT
• Do not touch the surface of the new rollers with bear hands.
• Be sure that the feed roller has the setting direction.
• Check the side-to-side registration of the copies from the LCT when the LCT is removed and installed. The side-to-side
registration will be changed in that case.
9.15 Others
• Golden screws (zinc plated) in all locations show a location adjusted during assembly. Therefore, pay attention to how
the screw is set originally before you start working. When the screw is loosened, adjustment is required.
User and Service Tools 1 July 1994
9-6
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