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Printer performance versus resolution

Posted on 2001-06-19
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Last Modified: 2010-04-27
If I print a document on my AS/400 twinax attached laser printer, which is rated at 40ppm, in standard mode (300dpi) with the simple overlay we use sent from the host, we achieve about 34ppm.

If I change the printer configuration to enhanced mode (600dpi) with the same document the performance of the printer drops to about 6ppm.

The manufacturer seems to suggest that this is acceptable.

The question is, is this 5-fold drop in performance for a 4-fold increase in resolution the norm or is my supplier taking me for a ride ?

Would extra memory in the printer help ?
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Question by:pmaddox
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Expert Comment

by:DRRYAN3
ID: 6207006
Are you sending raster data to the printer? Perhaps you are bumping up against a limit on the transmission speed of your network combined with increase processing time with the larger bitmaps.  Additional memory may help if there are no transmit speed limitations at work.  What kind of printer is it?


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by:dbrunton
ID: 6207995
Generally an increase in resolution quality means slower print speed.

As for the ratio you ask about, it depends on printer concerned and its specifications.  The manufacturer should have a rating of the ppm at the various resolutions.  

Also consider  DRRYAN3's comments.
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by:pete1968_be
ID: 6210869
Hi,

Seems to be ok to me, you also understand that the speed given is always engine speed, the speed the engine does after the image is build. The increase in resolution results in 4x more processing time needed (in the printer) possibly it has to rearrange memory to fit the job. So extra memory can improve the speed, but not that much, best result will be if it is just a 4 fould reduction in ppm. If there realy is to little memory, the printer will stop a page and go further with the same page on another piece of paper. And offcourse, the job itself gets 4 times larger, so your network speed is getting more of an issue too, as DRRYAN3 already mentioned.
You might try this: send ONE page to the printer and have the printer (via the settings in the printer) make something like 20 copies, do this in both resolutions, if your printer manages the memory intelligently it will be equally fast on both jobs, as soon as it starts printing, but !!!!! ALL PROVIDED THIS IS A LASERPRINTER !!!

Greetz,

Pete
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by:ComTech
ID: 6313530
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