Olivetti d-Copia 1600 Service Manual page 59

Maintenance
item No.
Setting the input filter (moire reduction mode)
U088
Description
Turns moire reduction mode on and off by switching the input filter on and off.
Purpose
Used to prevent regular density unevenness (moiré) on halftone image areas of the copy image in text mode
and text and photo mode. Such moire is more likely to appear when an enlargement or reduction copy is
made in text mode from an original containing large halftone image areas.
Method
Press the start key.
Setting
1. Select "on" or "oFF" using the zoom +/- keys.
Display
on
oFF
Initial setting: oFF
If moire on the copy image is significant, change the setting to "on". Note that when the moire reduction
mode is turned on, the resolution may be slightly reduced.
2. Press the start key. The value is set. The indication for selecting a maintenance item No. appears.
Completion
Press the stop/clear key. The indication for selecting a maintenance item No. appears.
Outputting a MIP-PG pattern
U089
Description
Selects and outputs a MIP-PG pattern created in the copier.
Purpose
When performing respective image printing adjustments, used to check the machine status apart from that of
the scanner with a non-scanned output MIP-PG pattern.
Method
1. Press the start key.
2. Select the MIP-PG pattern to be output using the exposure adjustment keys.
Exposure
indicator
Exp. 1
Exp. 2
Exp. 3
Exp. 4
3. Press the interrupt key.
4. Press the start key. A MIP-PG pattern is output.
Completion
Press the stop/clear key. The indication for selecting a maintenance item No. appears.
Description
Description
Moiré reduction mode
Normal copy mode
Display Description
G-S Gray scale
0 (setting value) Mono level
FFL 256 level
1-d 1-dot level
Setting range Initial setting
- -
0 to 255 0
- -
- -
2HA/2HB
1-3-27