HP LaserJet M4345 MFP Service Manual

Vertical white lines
Defect description
Vertical white lines appear on the printed page.
Possible causes
Media in use does not meet HP specifications. The print cartridge needs to be replaced.
Troubleshooting and suggestions
1. Print a few more pages to see if the problem corrects itself.
2. Make sure that the type and quality of media you are using meet HP specifications.
3. Replace the print cartridge.
Tire tracks
A
A
A
A
A
B
B
B
B
B
C
C
C
C
C
a
a
a
a
a
c
c
c
c
c
b
b
b
b
b
Defect description
Images resembling tire tracks appear on the printed page. This defect typically occurs when the print
cartridge has far exceeded its rated life, especially when printing a very large quantity of pages with
very little toner coverage.
Possible causes
The print cartridge needs to be replaced.
Troubleshooting and suggestions
1. Replace the print cartridge.
2. Reduce the number of pages that you print with very low toner coverage.
ENWW Solve print-quality problems 427
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HP LaserJet M4345 MFP Specifications

General

Print Technology	Laser
Functions	Print, copy, scan, fax
Print Speed	Up to 45 ppm
Print Resolution	Up to 1200 x 1200 dpi
Monthly Duty Cycle	Up to 200, 000 pages
Standard Input Capacity	600 sheets
Standard Output Capacity	250 sheets
Scanner Type	Flatbed, ADF
Maximum Scan Size	216 x 356 mm
Duplex Printing	Automatic
Memory, standard	256 MB
Memory, maximum	512 MB
Hard Disk	Optional
Print Languages	HP PCL 6, HP PCL 5e, HP Postscript Level 3 emulation
Paper Handling Input, Standard	100-sheet multipurpose tray, 500-sheet input tray
Scan Resolution, Optical	Up to 600 dpi
Scan Speed (Normal, A4)	Up to 45 ppm
Automatic Document Feeder Capacity	50 sheets
Copy Speed (Black, Normal Quality, A4)	Up to 45 cpm
Copy Resolution (Black Text)	Up to 600 x 600 dpi
Copy Reduce / Enlarge Settings	25 to 400%
Maximum Number of Copies	999
Fax Resolution	Up to 300 x 300 dpi
Fax Transmission Speed	3 sec per page
Connectivity	Ethernet
First Page Out	As fast as 8.5 sec
Display	LCD
Quick Dialing, Maximum Number	100 numbers
Operating System Compatibility	Windows, Mac, Linux
Network Ready	Standard (built-in Ethernet)