Specifications

Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL
96.11.01
M-15
1151SBM0701A
7-1. ATDC Sensor
ATDC Sensor UN3 installed on the underside of the Developer Mixing Chamber
detects the varying toner-to-carrier ratio of the developer which flows over it in the
Chamber. The copier CPU compares the detected ratio with the ratio set by the
ATDC Detection Level Mode (Tech. Rep. Choice SCH-90) to control toner
replenishment.
Set T/C (%) ATDC Output Voltage (V)
4.0 2.692
4.5 2.596
5.0 2.5 (Standard)
5.5 2.404
6.0 2.308
6.5 2.212
7.0 2.116
Toner is replenished for 5 seconds (the Toner Bottle is turned one turn, which is
equivalent to a run of 2 copy cycles) for each Toner Replenishing signal.
If the toner-to-carrier ratio becomes lower than 2.5%, the copier inhibits the initiation
of a new copy cycle (this feature can be enabled or disabled by a Tech. Rep. Choice
mode). When a ratio of 3% or more is recovered as a result of Auxiliary Toner
Replenishing, the copier permits the initiation of a new copy cycle.
If the Front Door is swung open and closed with a T/C ratio of less than 3%, the copi-
er initiates an Auxiliary Toner Replenishing sequence. (It stops the sequence as
soon as a T/C ratio of 3.5% is reached.)
ATDC Sensor Automatic Adjustment
An automatic adjustment of the ATDC Sensor is made in the F8 Test Mode
operation and when a new Imaging Unit is installed in the copier.
*When a New Imaging Unit is Installed in the Copier:
Following the execution of the starter setup mode upon power-up, the copier
CPU reads the output value of the ATDC Sensor and establishes the reading
as the reference value.
*When F8 is Run after Starter Has Been Changed:
Following the execution of the starter setup mode upon pressing of the Start
Key, the copier CPU reads the output value of the ATDC Sensor and establishes
the reading as the reference value.
NOTE: If an F8 operation is run at a time when the starter has not been changed,
it can result in a wrong T/C reference value being set by the copier. Avoid
casual use of F8.
If the setting value has been cleared because of the RAM Board being
replaced, however, enter the ATDC control value before the replacement
using the Zoom Up/Down Keys in the F8 operation (without pressing the
Start Key).