With the above listed HP laser jet MFP printers reaching the age they are, LPI has seen an increase in cases where the copy output is lighter than the original – but yet print jobs are printing perfectly.
This is basically do to dirty optics in the lamp within the flatbed scanner. Most cases the lamp is not replaceable other than replacing the entire flatbed scanner assembly.
The “DARKNESS” setting can be adjusted from the copy screen for good quality output but this is only for the current copy job and has to be changed for every copy job. To set the default darkness for all copy jobs access the following menu:
“ADMINSTRATION”, “DEFAULT JOB OPTIONS”, “IMAGE ADJUSTMENT” and select darkness.
*NOTICE* Selecting a setting of 8 actually results in a lighter copy.
Default copy screen with the setting at 8 (default is 4):
Now if you select the setting of zero, the copy screen will have the darkness at maximum:
In most cases changing to a setting of 3 will produce good quality copy output.
