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Print Quality
HP Designjet 4500 Printer Series Service Manual
Here are some things to check which can improve 
image quality:
 The print mode used in your printer is not right for the image you are 
printing (this is defined by the printer’s front-panel menu selections).
 Make sure that the paper type selected in the Front Panel is the same 
as the paper type loaded into the Printer.
 Non-HP driver.
 The RIP (If you are using one).
The software applications you are using.
Print Quality General Advice
1 To achieve the best performance from the printer, only genuine HP 
accessories and supplies should be used.
2 Make sure that the paper type selected in the Front Panel is the same as 
the paper type loaded into the Printer.
3 Roll paper usually gives better Print Quality than a single sheet of the same 
type of paper.
4 When single sheets are being used, it is recommended to use the Best print 
quality setting.
5 The most appropriate print quality settings must be used for the current 
purpose. You are most likely to see print quality problems while using the 
Fast print quality setting.
6 In order to achieve the best print quality, at the expense of speed, always set 
"Printhead Monitoring" to "Intensive".
7 Check that the environmental conditions (temperature, humidity) are within 
the temperature/humidity range as specified for the Printer (refer to the 
User’s Guide for further information).
8 Remember that certain print quality problems can be solved by:
 Recovering the Printheads (Ink Menu/Printheads/Recover Printheads).
 Aligning the Printheads (Ink Menu/Printheads/Align Printheads).
 Performing the Paper Advance Calibration (Paper Menu/Paper Advance 
Calibration).