Data Reduction And Page Separation . . . . . . . . . 2.3. Pcbs - Ricoh Fx880 Service Manual

Fax880 mp mv 74 fax and printer
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November 28th, 1995
2.2.8. Data Reduction and Page Separation
If the vertical reduction ratio is set to AUTO with user function 62, incoming
data can be reduced to fit on one output page. Data will only be reduced if
the length of the incoming page does not exceed a certain maximum length.
This length depends on the reduction ratio set with user function 62 (the other
choice visible on the display besides AUTO; this is either 94% or 100%), the
print paper size, and the reduction ratio set with printer bit switches 04 and 05.
Each paper size can be programmed with a separate reduction ratio. In each
of the two bit switches, there is one bit for each possible paper size. The com-
bination of the bit settings determines the ratio for that paper size.
Bit No.
Bit 7
Not
used
Sw 04
0: 3/2
0:
Sw 05
The following table shows the maximum incoming page length that can be re-
duced for each print paper size. All lengths are in millimeters. The factory
setting of the reduction ratio is 4/3.
Europe/Asia Model
Copy Paper
Reduction
Type
A4
USA Model
Copy Paper
Reduction
Type
Letter
Legal
Letter
Legal
Incoming pages that are longer than the maximum length will not be reduced,
but will be printed on two pages.
Bit 6
Bit 5
Not
Legal
used
1: 4/3
0:
Ratio
Ratio = 3/2
94%
439
100%
412
Ratio
Ratio = 3/2
410
94%
532
386
100%
501
DETAILED SECTION DESCRIPTIONS
Bit 4
Bit 3
Not
A4
used
0: 8/7
1:
Maximum reducible incoming page length.
Ratio = 4/3
390
367
Maximum reducible incoming page length.
Ratio = 4/3
365
473
343
445
2-15
Bit 2
Bit 1
Letter
Not
used
1: 12/11
1:
Ratio = 8/7
Ratio =12/11
334
314
Ratio = 8/7
Ratio =12/11
312
406
294
381
PRINTER
Bit 0
Not
used
319
300
298
387
280
364

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