Table of Contents
Advertisement
COPY QUALITY ADJUSTMENT
9.9
ADS SENSOR AUTOMATIC ADJUSTMENT (SP56)
When:
Purpose:
Adjustment standard:
How:
NOTE: Close the platen cover to prevent external light from reaching the
ADS sensor when performing this adjustment.
The beeper sounds 2 times when the adjustment (about 4 seconds)
are completed.
The adjusted ADS gain data and the sensor output can be monitored
by SP167 (ADS gain/Output Check). Refer to the SP mode table for
details.
9.10 ADS DENSITY SELECTION (SP34)
When:
Purpose:
How:
SP34:
ADS Density
0: Normal
1: Darker
2: Lighter
1. If ADS output voltage is not within the
adjustment standard after cleaning the optics.
2. At replacement of the following parts:
ADS board, Exposure lamp, RAM board on
the main control board, and dc power supply
board
3. If memory all clear (SP99) has been
performed.
To make sure that the ADS sensor functions
correctly.
ADS Voltage = 1.5 ±0.1 V
SP56 adjusts ADS gain data in memory to get the
correct sensor output.
If image density of copies is too light or dirty
background appears on copies in ADS mode.
To maintain good copy quality in ADS mode.
SP34 increases negative grid bias voltage for
darker setting and increases negative
development bias voltage for lighter setting.
5-96
12 February 1992
Advertisement
Table of Contents
