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40672201TX Rev.4
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4.7.2 Printing area and image scaling
4.7.2.1 Variable (reduction) printing
FX-051 uses cut-sheet papers of A4, letter, and legal sizes.
FX-051 (US), for example, reads a document at 8 dots/mm x 7.7 lines/mm and sends it to
remote TX-051 (US).
On the other hand, FX-051 (US) at receiving side receives the document, then converts the
horizontal resolution from 8 dots/mm to 300 dots/inch and the vertical resolution from 7.7 lines/
mm to 784 lines/inch using image smoothing process. And also 784 to 1076 lines/inch (variable
resolution) is available for vertical printing.
Since the available printing area of the printer is smaller than the paper size, document
contents may be missed on both sides of the paper, or a document image having the same
length as the printing paper may be split into separate pages in printing. To prevent these,
FX-051 automatically adjust itself to the proper reduction ratio within the following range.
73 to 100% (US: Letter paper) 78 to 100% (INT’L: A4 paper)
Note: The difference of the range depends on memory size and paper size.
4.7.3 Operation on alarm occurrence during printing
If a power failure or a printer alarm (including paper run-out alarm) occurs during printing of a
received image, the image data already received and stored in the memory is regarded as no-
paper received data. After the recovery from the failure, printing of the received image data
automatically starts with the interrupted page, for FX-051 cannot reproduce the data for power
failure.
No.
Inapplicable
Standard
Standard Specification FX-051specification
1
2
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CCITT T4.2.1
CEPT 5.1.4
18R53 7.2.1
Vertical scanning resolution
The vertical scanning resolution
should be 3.85 lines/mm ± 1 % for
7.7 lines/mm ± 1 %
CCITT T4.2.2
CEPT 5.1.1
18R53 7.3.1
Horizontal scanning resolution
The length of ahorizontal scanning
line should be 215 mm ± 1 % for
1728 white-band-black picture elements
CEPT 5.1.5
18R53 7.6.1
When A4-size papers are used, the
first received line must be printed in the
position of 0 mm to 4 mm from the top
of the paper.
The original image is reduced by 73 %
to 100 %. (Except EX-Fine Copy mode)
203.2 mm ± 1 %
User Function No.27 (Width Reduction)
ON: The original image is reduced by 95%
The detail is shown as below:
(1) COPY
a. STD copy
• A4 size paper : 97.9%
• Except A4 size paper : 94.5%
b. FINE/EX. FINE/PHOTO copy
• A4 size paper : 97.5%
• Except A4 size paper : 95.0%
(2) Received data
• 8pel/mm : 94.1%
• 300DPI : 92.6%
0.6 mm to 8.1 mm