[cups.general] Custom paper height limit

Michael Sweet msweet at apple.com
Wed Jan 26 12:07:16 PST 2011


Unfortunately most Canon printers do not offer public technical documentation, however the typical limit is caused by the command set being used, for example the length might be limited to a 16-bit integer value at 360 DPI.

On Jan 26, 2011, at 12:00 PM, Ivan Mica wrote:

> Thanks for a quick reply. Do you see some way, how to discover, whether this is a driver limit or a printer limit? As I do not see any technical reason, why the printer could not print on "infinite" plotter paper - and I do not understand the driver issue. Is there any hope to cross such a limit?
> 
>> This is most likely either a driver or a printer limit you are running =
>> into...
>> 
>> On Jan 26, 2011, at 11:37 AM, Ivan Mica wrote:
>> 
>>> Hello,
>>> =20
>>> I would like to print onto very long continuous paper with my Cannon =
>> iP4700, however I crashed on some hard limit, that I can neither cross =
>> nor explain...
>>> =20
>>> E.g.
>>> $ lp -o media=3DCustom.21x59.7cm out.ps
>>> works perfectly, but
>>> $ lp -o media=3DCustom.21x69.7cm out.ps
>>> does not even start to print (job gets however marked as completed)
>>> =20
>>> I tried to experiment with the corresponding PPD, namely I increase =
>> the
>>> *MaxMediaHeight: "1917"
>>> to
>>> *MaxMediaHeight: "2917"
>>> and
>>> *ParamCustomPageSize Height: 2 points 257.96 1916.23
>>> to
>>> *ParamCustomPageSize Height: 2 points 257.96 2916.23
>>> =20
>>> with no visible effect... But this was really just an intuitive =
>> experiment - I have no previous experience with PPD, so maybe I was =
>> doing something wrong.
>>> =20
>>> Can someone explain this behaviour or give me an advice, where to look =
>> to learn how to change the PPD appropriately?
>>> =20
>>> Thanks in advance
>>> _______________________________________________
>>> cups mailing list
>>> cups at easysw.com
>>> http://lists.easysw.com/mailman/listinfo/cups
>> 
>> ________________________________________________________________________
>> Michael Sweet, Senior Printing System Engineer, PWG Chair
>> 
> 
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________________________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair





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