211 lines
11 KiB
HTML
211 lines
11 KiB
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<meta name="DC.Title" content="CPI (Characters Per Inch) keyword in printer files" />
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<meta name="abstract" content="This record- or field-level keyword specifies the horizontal printing density for the record format or field that you are defining." />
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<meta name="description" content="This record- or field-level keyword specifies the horizontal printing density for the record format or field that you are defining." />
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<meta name="DC.subject" content="CPI (Characters Per Inch) keyword, Characters Per Inch (CPI) keyword" />
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<meta name="keywords" content="CPI (Characters Per Inch) keyword, Characters Per Inch (CPI) keyword" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<title>CPI (Characters Per Inch) keyword in printer files</title>
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<body id="rzakdmstptcpi"><a name="rzakdmstptcpi"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">CPI (Characters Per Inch) keyword in printer files</h1>
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<div><p>This record- or field-level keyword specifies the horizontal printing
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density for the record format or field that you are defining.</p>
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<div class="section"><div class="p">Use CPI to: <ul><li>Darken logos and other printed graphics that you create using the DFNCHR
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keyword</li>
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<li>Place more data in less space on printed forms</li>
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<li>Fit the appearance of a form to your needs</li>
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</ul>
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</div>
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<div class="p">The format of the keyword is: <pre>CPI (10 | 15)</pre>
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</div>
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<p>10
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or 15 specifies the number of characters per inch.</p>
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<p>This keyword is valid
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only for the 5224 and 5225 SCS printers. If you do not specify CPI, the density
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is set by the CPI parameter on the Create Printer File (CRTPRTF), Change Printer
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File (CHGPRTF), or Override with Printer File (OVRPRTF) command.</p>
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<p>If
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you specify CPI at the record level, all fields in the record format are at
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the same density except those for which you specify CPI at the field level.</p>
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<p>If
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you specify CPI at the field level, you can specify different densities for
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fields printed on the same line. The position you specify for each field (in
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positions 42 through 44) is based on the value of the CPI parameter on the
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CRTPRTF, CHGPRTF, or OVRPRTF command (see the following examples).</p>
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<p>When
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you specify CPI at the field level, overlapping fields are not diagnosed.</p>
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<p>A
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warning message results at creation time if you specify CPI in a file created
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with DEVTYPE(*IPDS) or DEVTYPE(*AFPDS). To change the CPI, you must specify
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the FONT keyword.</p>
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<p>You cannot specify CPI on the same record format as
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the DRAWER keyword.</p>
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<p>Option indicators are valid for this keyword.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Examples</h4><p>The following examples show how to specify
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the CPI keyword for a record format.</p>
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<p><strong>Example 1:</strong></p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A R RECORD1
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00020A 02 CPI(15)
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00030A FLD1 20 3 1
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00040A FLD2 5 0 +2
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00050A R RECORD2 SPACEB(1)
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00060A FLD3 1
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A</pre>
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<p>In this example, if option indicator 02 is set to on,
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both FLD1 and FLD2 in RECORD1 are printed at 15 characters per inch. If option
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indicator 02 is set to off, FLD1 and FLD2 are printed at the density specified
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for the CPI parameter on the CRTPRTF, CHGPRTF, or OVRPRTF command.</p>
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<p>The
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printer spaces one line before printing RECORD2. FLD3 in RECORD2 is printed
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at the density specified for the CPI parameter on the CRTPRTF, CHGPRTF, or
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OVRPRTF command.</p>
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<p><strong>Example 2:</strong></p>
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<p>The following example shows
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what happens when a field at 15 CPI is printed between fields printed at 10
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CPI.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A R RCDA SPACEA(1)
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00020A FLD1 10 1
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00030A FLD2 10 11CPI(15)<strong>1</strong>
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00040A FLD3 10 21
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A</pre>
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<div class="p">In this example, all positions entries <strong>1</strong> refer
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to columns measured at 10 CPI (as specified on the CRTPRTF, OVRPRTF, or CHGPRTF
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command). Therefore, RCDA is printed as follows: <pre>11111111112222222222 3333333333</pre>
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</div>
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<div class="p">FLD2,
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being compressed at 15 CPI, uses less room than FLD1 or FLD3. To avoid the
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gap, specify FLD3 more to the left. To calculate the position of FLD3, add
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the length of FLD2 to the specified position of FLD2. To calculate the length
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of FLD2, use the following formula: <pre><u>length specified X file density</u> = printed length
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density for the field</pre>
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</div>
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<div class="p">or, for FLD2: <pre><u>10 X 10</u> = <u>10 X 2</u> = 6.67 (rounded up to 7)
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15 3</pre>
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</div>
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<div class="p">Add 7 to 11, the specified position of FLD2,
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as follows: <pre>7 + 11 = 18</pre>
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</div>
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<div class="p">The resulting corrected
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DDS for Example 2 becomes: <pre>R RCDA SPACEA(1)
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FLD1 10 1
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FLD2 10 11CPI(15)
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FLD3 10 18</pre>
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</div>
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<div class="p">The record format then prints
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as follows: <pre>11111111112222222222 3333333333</pre>
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</div>
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<p><strong>Example
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3:</strong></p>
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<p>The following example shows what happens when a field at 10 CPI
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is printed between fields printed at 15 CPI.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A R RCDB SPACEA(1)
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00020A FLD4 10 1
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00030A FLD5 10 11CPI(10) <strong>1</strong>
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00040A FLD6 10 21
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A</pre>
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<div class="p">In this example, the positions entries <strong>1</strong> refer
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to positions measured at 15 CPI (as specified on the CRTPRTF, OVRPRTF, or
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CHGPRTF command). The system uses the following formula to calculate the beginning
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position of fields printed at 10 CPI within files printed at 15 CPI: <pre><u>2(specified position - 1)</u> + 1 = printed position (truncated if fractional)
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3</pre>
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</div>
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<div class="p">or, for FLD5: <pre><u>2(11-1)</u> + 1 = 7.67 (truncated to 7)
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3</pre>
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</div>
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<div class="p">The truncation can cause overprinting
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of FLD4 by FLD5, as shown in the following example: <pre>44444444445555556666666666666</pre>
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</div>
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<p>To
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avoid the overprinting, specify FLD5 one more position to the right (position
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12).</p>
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<div class="p">To calculate the position of FLD6, add the length of FLD5 to the
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position of FLD5. To calculate the length of FLD5, use the following formula:
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<pre><u>length specified X density for the file</u> = printed length
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density for the field</pre>
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</div>
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<div class="p">or, for FLD5: <pre><u>10 X 15</u> = 15 (rounded up if necessary)
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10</pre>
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</div>
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<div class="p">Add 15 to the (adjusted) position of FLD5: <pre>15 + 12 = 27</pre>
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</div>
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<div class="p">The
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resulting corrected DDS for Example 3 becomes: <pre>R RCDB SPACEA(1)
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FLD4 10 1
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FLD5 10 12CPI(10)
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FLD6 10 27</pre>
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</div>
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<div class="p">The record format then prints as follows:
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<pre>4444444444 5555555555 6666666666</pre>
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</div>
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<p><strong>Example
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4:</strong></p>
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<p>The following example shows the effect of the CPI keyword on
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how the system truncates or folds fields at the right side of the printer
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form. This depends on the values of the FOLD and PAGESIZE parameters on the
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CRTPRTF, CHGPRTF, or OVRPRTF commands.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A R RCDC SPACEA(1)
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00020A FLD7 10 140
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00030A FLD8 10 150CPI(10)
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A</pre>
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<div class="p">In this example, if the file is being printed at 15 CPI
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with a forms width of 160, FLD7 and FLD8 are printed as follows: <ul><li>FLD7 starts at position 140 for a print length of 10 at 15 CPI (16.9 mm
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or 0.667 inch).</li>
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<li>FLD8 starts at position 150 for a print length of 10 at 10 CPI (25.4 mm
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or one inch).</li>
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</ul>
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</div>
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<div class="p">Printing FLD8 at position 150 calculated at 15 CPI causes FLD8
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to extend beyond the right margin. Therefore, FLD8 is either truncated or
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folded onto the next line (depending on the FOLD parameter on the CRTPRTF,
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CHGPRTF, or OVRPRTF command). To calculate the length of FLD8, use the following
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formula: <pre><u>length specified X density for the file</u> = printed length
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density for the field</pre>
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</div>
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<div class="p">or, for FLD8: <pre><u>10 X 15</u> = 15 (truncated to next lower integer if necessary)
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10</pre>
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<div class="note"><span class="notetitle">Note:</span> When a file printed at 15 CPI contains fields printed
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at 10 CPI, the right margin of the form is adjusted for all fields according
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to the following formula:</div>
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<pre><u>2(specified length of the field - 1)</u> + 1 = adjustment
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3 (truncated if fractional)</pre>
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</div>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzakdmstprkey.htm" title="See the valid keyword entries for defining printer files in this topic.">Keyword entries for printer files (positions 45 through 80)</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="rzakdmstzfont.htm" title="Use this record- or field-level keyword to specify the font ID for printing a named or constant field or fields within a record.">FONT (Font) keyword in printer files</a></div>
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</div>
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</div>
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</body>
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