Xerox B205, Руководство по обслуживанию

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July 2019
3-4 Xerox® B205/B215 Multifunction Printer Service Manual
Image Quality Overview, IQ1
Initial Release Image Quality
Test Prints
Test Pattern pages are available for troubleshooting image quality defects and to confirm
proper printer operation. Printing the Test Pattern is useful for stimulating asynchronous
(dynamic) events related to the print process, or as a test for media path and media-related
problems.
The test print provides a variety of different line styles in both process and cross-process direc-
tions. The pattern is used to check registration, dot size and image density.
Test Pattern 1 and Test Pattern 2 are essentially the same but for different media sizes. Table 2 ,
describes the test patterns and the purpose for which they are used to identify image quality
defects.
To create a test print from the Control Panel:
1. Enter Diagnostic Mode. Press the < Menu > button, the < # > button, then using the keypad
select < 1934 >, then press the < OK > button.
2. Select: [Diagnostics, Machine Test, Test Pattern, Print, Yes ]. Press the <OK > button
after menu selections.
• Test Pattern 1 for 8.5 x 11 prints.
• Test Pattern 2 for A4 prints.
IQ1 Vertical Black Line and Band RAP
Thin black vertical lines or black vertical bands occur in the printed image, Figure 1 .
Procedure
Switch Off the power.
Check the Transfer Roller,
PL 4.1 Item 10 , for wear or damage; and remaining life, refer to GP 6
Machine Reports. The Transfer Roller is OK.
Y N
Install a new Transfer Roller, PL 4.1 Item 10 .
Switch On the power and make a test print.
If the fault persists, Install a new Drum Cartridge, refer to the Xerox® B215/B205 User Guide
for detailed instructions on how to Install a new Drum Cartridge.
Figure 1 Black Lines and Bands
Table 2 Internal Test Patterns
Test Pattern Number Description Purpose
Test Pattern 1 8.5 x 11 inches (Letter) Light density uniformity, deletions, lines,
bands, streaks, smears, solid area repro-
duction, motion quality (LSU).
Test Pattern 2 A4 Light density uniformity, deletions, lines,
bands, streaks, smears, solid area repro-
duction, motion quality (LSU).