2024年11月5日发(作者：本华)

HP UPD PS driver

●

●

Recommended for printing with Adobe

®

software programs or with other highly

graphics-intensive software programs

Provides support for printing from postscript emulation needs, or for postscript

flash font support

Recommended for general office printing in Windows environments

Compatible with previous PCL versions and older HP LaserJet printers

The best choice for printing from third-party or custom software programs

The best choice when operating with mixed environments, which require the printer

to be set to PCL 5 (UNIX, Linux, mainframe)

Designed for use in corporate Windows environments to provide a single driver for

use with multiple printer models

Preferred when printing to multiple printer models from a mobile Windows

computer

Recommended for printing in all Windows environments

Provides the overall best speed, print quality, and printer feature support for most

users

Developed to align with Windows Graphic Device Interface (GDI) for best speed in

Windows environments

Might not be fully compatible with third-party and custom software programs that

are based on PCL 5

HP UPD PCL 5

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●

●

●

●

●

HP UPD PCL 6

●

●

●

●

Print quality troubleshooting guide

Repetitive defects ruler

When troubleshooting the source of some print image defects, one solution is to identify if it is a repetitive

defect (does the print quality defect appear multiple times on the printed page?). If this is the case, use a ruler

to measure occurrences of repetitive image defects to help solve image-quality problems. For more

information, see Use a ruler to measure between repetitive defects on page 156.

Use a ruler to measure occurrences of repetitive image defects to help solve image-quality problems. Place

the ruler next to the first occurrence of the defect on the page. Find the distance between identical defects

and use the table below to identify the component that is causing the defect.

NOTE:Do not use solvents or oils to clean rollers. Instead, rub the roller with a lint-free cloth. If dirt is

difficult to remove, rub the roller with a lint-free cloth that has been dampened with water.

Table 2-29 Repetitive image defects

Distance between identical

defects

22.6 mm (0.89 in)

23.6 mm (0.93 in)

29.6 mm (1.17 in)

35.0 mm (1.38 in)

Component

Developer roller

Primary charging roller

RS roller

Intermediate transfer belt (ITB)

assist roller

Notes

Appears in the form of dropouts.

Appears in the form of dropouts.

ENWWSolve image quality problems155

Table 2-29 Repetitive image defects (continued)

Distance between identical

defects

50.0 mm (1.97 in)

50.0 mm (1.97 in)

57.0 mm (2.24 in)

63.0 mm (2.48 in)

63.0 mm (2.48 in)

75.0 mm (2.95 in)

78.0 mm (3.07 in)

78.0 mm (3.07 in)

712.0 mm (28.03 in)

Component

Secondary transfer roller

Large assist roller

Fuser rollers (3)

Photosensitive drum

Tension roller

Scale

Cartridge station

Intermediate transfer belt (ITB)

drive roller

Intermediate transfer belt (ITB)

length

Notes

Appears in the form of dropouts or dirt on the back of the

page.

Appears in the form of dirt (front or back of page) or loose

toner.

Appears in the form of dirt or dropouts.

NOTE:The primary charging roller, photosensitive drum, and developer roller cannot be cleaned. If any of

these rollers are indicated, replace the toner cartridge.

Use a ruler to measure between repetitive defects

The figures in this section shows color repetitive defect pages. However, the process for measuring repetitive

defects is valid for mono pages.

fy a repetitive defect on the page.

TIP:Print a cleaning page to see if that resolves the defect.

The example pages below show the following types of repetitive defects.

NOTE:

●

●

●

These are examples only, other types of repetitive defects might appear on a page.

Lines (callout 1)

Smudges (callout 2)

Dots or spots (callout 3)

156Chapter 2 Solve problemsENWW

2024年11月5日发(作者：本华)

HP UPD PS driver

●

●

Recommended for printing with Adobe

®

software programs or with other highly

graphics-intensive software programs

Provides support for printing from postscript emulation needs, or for postscript

flash font support

Recommended for general office printing in Windows environments

Compatible with previous PCL versions and older HP LaserJet printers

The best choice for printing from third-party or custom software programs

The best choice when operating with mixed environments, which require the printer

to be set to PCL 5 (UNIX, Linux, mainframe)

Designed for use in corporate Windows environments to provide a single driver for

use with multiple printer models

Preferred when printing to multiple printer models from a mobile Windows

computer

Recommended for printing in all Windows environments

Provides the overall best speed, print quality, and printer feature support for most

users

Developed to align with Windows Graphic Device Interface (GDI) for best speed in

Windows environments

Might not be fully compatible with third-party and custom software programs that

are based on PCL 5

HP UPD PCL 5

●

●

●

●

●

●

HP UPD PCL 6

●

●

●

●

Print quality troubleshooting guide

Repetitive defects ruler

When troubleshooting the source of some print image defects, one solution is to identify if it is a repetitive

defect (does the print quality defect appear multiple times on the printed page?). If this is the case, use a ruler

to measure occurrences of repetitive image defects to help solve image-quality problems. For more

information, see Use a ruler to measure between repetitive defects on page 156.

Use a ruler to measure occurrences of repetitive image defects to help solve image-quality problems. Place

the ruler next to the first occurrence of the defect on the page. Find the distance between identical defects

and use the table below to identify the component that is causing the defect.

NOTE:Do not use solvents or oils to clean rollers. Instead, rub the roller with a lint-free cloth. If dirt is

difficult to remove, rub the roller with a lint-free cloth that has been dampened with water.

Table 2-29 Repetitive image defects

Distance between identical

defects

22.6 mm (0.89 in)

23.6 mm (0.93 in)

29.6 mm (1.17 in)

35.0 mm (1.38 in)

Component

Developer roller

Primary charging roller

RS roller

Intermediate transfer belt (ITB)

assist roller

Notes

Appears in the form of dropouts.

Appears in the form of dropouts.

ENWWSolve image quality problems155

Table 2-29 Repetitive image defects (continued)

Distance between identical

defects

50.0 mm (1.97 in)

50.0 mm (1.97 in)

57.0 mm (2.24 in)

63.0 mm (2.48 in)

63.0 mm (2.48 in)

75.0 mm (2.95 in)

78.0 mm (3.07 in)

78.0 mm (3.07 in)

712.0 mm (28.03 in)

Component

Secondary transfer roller

Large assist roller

Fuser rollers (3)

Photosensitive drum

Tension roller

Scale

Cartridge station

Intermediate transfer belt (ITB)

drive roller

Intermediate transfer belt (ITB)

length

Notes

Appears in the form of dropouts or dirt on the back of the

page.

Appears in the form of dirt (front or back of page) or loose

toner.

Appears in the form of dirt or dropouts.

NOTE:The primary charging roller, photosensitive drum, and developer roller cannot be cleaned. If any of

these rollers are indicated, replace the toner cartridge.

Use a ruler to measure between repetitive defects

The figures in this section shows color repetitive defect pages. However, the process for measuring repetitive

defects is valid for mono pages.

fy a repetitive defect on the page.

TIP:Print a cleaning page to see if that resolves the defect.

The example pages below show the following types of repetitive defects.

NOTE:

●

●

●

These are examples only, other types of repetitive defects might appear on a page.

Lines (callout 1)

Smudges (callout 2)

Dots or spots (callout 3)

156Chapter 2 Solve problemsENWW