HP d640 HP D640 High-Volume Printer - Installation Manual (Printer and Accesso - Page 100

Duplex Double-Sided Printing Alignment, Duplex Unit Alignment Ruler Sheet

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Installation Procedure 15: Paper Path Alignment Duplex (Double-Sided) Printing Alignment Figure 2-100 illustrates the Duplex unit alignment ruler sheet, which provides a way to measure the alignment between the printed image on the front and back sides of a doublesided page. Figure 2-100 Duplex Unit Alignment Ruler Sheet 1. On the duplex unit alignment ruler sheet, review each side of the paper. View through the paper. Hold the paper up to a bright light, the side with the alignment scale towards you. 2. The sideways indicator line runs up and down the back of the page on the left. Look for the indicator line and note where it crosses the scale on the left. Record this value on sheet 1 at Duplex unit sideways alignment adjustment value. 3. The lengthwise indicator line runs across the back of the page. Look for the indicator line and note where it crosses the scale in the middle of the page. Record this value on sheet 1 at Duplex unit lengthwise alignment adjustment value. Installation 2-91

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Procedure 15: Paper Path Alignment
Installation
2-91
Installation
Duplex (Double-Sided) Printing Alignment
Figure 2-100 illustrates the Duplex unit alignment ruler sheet, which provides a way to
measure the alignment between the printed image on the front and back sides of a double-
sided page.
Figure 2-100
Duplex Unit Alignment Ruler Sheet
1.
On the duplex unit alignment ruler sheet, review each side of the paper. View
through
the paper. Hold the paper up to a bright light, the side with the alignment
scale towards you.
2.
The
sideways
indicator line runs up and down the back of the page on the left.
Look
for the indicator line and note where it crosses the scale on the left.
Record this value
on sheet 1 at
Duplex unit sideways alignment adjustment value
.
3.
The
lengthwise
indicator line runs across the back of the page.
Look for the indicator
line and note where it crosses the scale in the middle of the page.
Record this value
on sheet 1 at
Duplex unit lengthwise alignment adjustment value
.