Glen,
Comments inline...
On Aug 8, 2011, at 2:39 PM, Petrie, Glen wrote:
> Mike,
>> For EdgeEnum, I believe this the media “feed edge”. The keyword could be reduced to ShortEdge and LongEdge since addition of “First” does not help in the describing the data. I might suggest the name be changed to “FeedEdgeShort” and “FeedEdgeLong”.
The keyword names come from the Semantic Model definitions, so for better or worse I'd like to keep them as-is.
> I do not understand the title MediaPosition.
Blame Adobe - this is the name as defined by Adobe for the PostScript page device dictionary. Again, since the name comes from a specific source I don't want to change it, but we can add verbiage to explain things.
> Does this mean input tray (or source tray). So the enum is really MediaInputTrayEnum or MediaSourceEnum. I like MediaInputTrayEnum; since it is used in a lot of other specifications.
Again, since the field is called MediaPosition I'd like to keep the name the same.
> Hagaki is not media source.
It actually is for some printers I've worked with (as strange as that sounds), but since there is resistance to standardizing it I will remove it.
> I actually do not see that Photo is a source or tray. I understand that you would to specify the “photo media tray”; but really, the request is use the tray with photo media. If the actual tray is not known; then the tray is set to “auto” and Media type is to “photo”.
Many consumer inkjets have a dedicated photo input tray that only accepts photo media. You need a way to specify whether to pull from the photo tray or the main tray (which can also hold photo media...)
>> I compared the Media Input tray to JTAPI and found several differences I would like to discuss.
>> “Main” is not used in JTAPI and I believe it can be covered by “Auto”. Thus it can be dropped.
> “Alternate” is not used in JTAPI and I believe does indicate an actual tray and can be covered by “Auto”. Thus it can be dropped.
No, "main" and "alternate" have a specific meaning on printers with 2 input trays. Some vendors call them upper and lower, some 1 and 2, some main and alternate.
>> “Manual” in JTAPI is specified as “By Pass Tray” or “Insert Tray”.
Yet "manual" is already a registered name from 2911.
> “Roll” is specified in JTAPI as “Roll”, “Roll 1”, “Roll 2”, etc. and not as main or alternate. I suggest using the Roll 1 and Roll 2, etc you already have and drop main and alternate.
Again, some vendors refer to them this way so I would prefer to keep them.
>> Are there really printers with 20 input trays or 10 rolls? These are lot of input trays!!!! I know of finishing devices with that many trays but not the printer.
Just a bit of future-proofing so we don't need to update things just to handle adding a tray to the list.
>> Are the numerical values 18 and 19 supposed to be skipped?
Yes, I was leaving room for any additions; I could just as easily make tray-N start at 100 and roll-N start at 200.
>>> This is the list from JTAPI:
> ANY_SMALL_FORMAT
> ANY_LARGE_FORMAT
> AUTO_SELECT
> BOTTOM
> BYPASS_TRAY
> BYPASS_TRAY_1
> BYPASS_TRAY_2
> BYPASS_TRAY_3
> CONTINUOUS
> DISC
> DISC_1
> DISC_2
> DISC_3
> ENVELOPE
> ENVELOPE_1
> ENVELOPE_2
> ENVELOPE_3
> FRONT
> INSERT_TRAY
> INSERT_TRAY_1
> INSERT_TRAY_2
> INSERT_TRAY_3
> LARGE_CAPACITY
> LARGE_CAPACITY_1
> LARGE_CAPACITY_2
> LARGE_CAPACITY_3
> LEFT
> MIDDLE
> REAR
> RIGHT
> ROLL
> ROLL_1
> ROLL_2
> ROLL_3
> SIDE
> TOP
> TRAY
> TRAY_1
> TRAY_2
> TRAY_3
I'll cross-reference this with the list I have and add any missing ones.
>> I suggest changing “LeadingEdge” to “FeedEdge”
See above.
>> Can you add wording for multi-variable data on the specific order of data in the header. Example ImageBox; I guess it Left, Top, Right, Bottom order (which is backwards from most system I know of; most are top, left, bottom and right.)
ImagingBoundingBox is Left, Bottom, Right, Top. And I thought I had (will check)
> For the Margins you have Left and Bottom while the convention is Top and Left (in that order). Should these be changed?
>No, PostScript defines it thusly.
>> I do see the definition for “OrientationEnum” in the specification.
>> You use unsigned integer for most variable which make sense for C-Code implementation; however, Java does not have unsigned integers. What would be the potential “danger” of specifying signed integers.
Incompatibility with the existing format. As for Java's limitations, I'd rather not start a language war...
> What/Where is description for “ImageBoudningBox” (not ImageBox stuff that is given in section 4.3.2.8).
>
I'll add one, but it is the PostScript definition (left, bottom, right, top coordinates in points, origin is the bottom left corner).
>> I do not see a section with a descriptive paragraph (section) for Manual Feed.
I meant to remove ManualFeed from the table and leave it reserved. It is legacy cruft that it superseded by MediaPosition.
>> What is LSB for Media Weight? Or number of significant bits.
Media Weight in integer grams.
> I am a little confused about the term “RenderingIntent”. Do you mean ColorMapping; that is how one maps from image color space to device color space. Example in perceptional, linear, clipped, etc.
>
I mean the same as defined in JPS3 and ICC - AbsoluteColorimetric, RelativeColorimetric, etc.
________________________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair
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