HP LaserJet M4345 MFP Service Manual

Solve copy problems
Prevent copy problems
The following are a few simple steps you can take to improve copy quality:
●
Copy from the flatbed scanner. This will produce a higher quality copy than copying from the
automatic document feeder (ADF).
●
Use quality originals.
●
Load the media correctly. If the media is loaded incorrectly, it might skew, causing unclear
images and problems with the OCR program. See
Media specifications on page 10 for
instructions.
●
Use or make a carrier sheet to protect your originals.
NOTE Verify that the media meets HP specifications. If the media meets HP specifications,
recurring feed problems indicate the pickup roller or separation pad is worn. Contact
HP Customer Care. See
HP Customer Care on page 609 or the flyer that came in the device
box.
Image problems
Problem Cause Solution
Images are missing or faded. The print-cartridge toner-level might be
low.
Replace the print cartridge. See
Change the print cartridge on page 93.
The original might be of poor quality. If your original is too light or damaged,
the copy might not be able to
compensate, even if you adjust the
darkness. If possible, find an original
document in better condition.
The original might have a colored
background.
Touch Copy, and then touch Image
Adjustment. Adjust the Background
Cleanup slider to the right to decrease
the background.
Vertical white or faded stripes appear
on the copy.
The media might not meet
HP specifications.
Use media that meets
HP specifications. See
Select print
media on page 10.
The print-cartridge toner-level might be
low.
Replace the print cartridge. See
Change the print cartridge on page 93.
434 Chapter 6 Problem solving ENWW

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)