Conference 7.286::postscript_printing

7152.0. "Sheets jam in duplexer since upgrade to turbo LPS20" by UTRTSC::BARK () Wed Apr 09 1997 12:02

Hello,

One of our customes has since he upgraded his Turbo Printserver 20 to a
Plus version with 32Mb, problems with pages wich end up in the duplexer 
and stay there while the printer is diplaying processing.
To get things going again they have to remove the sheet from the duplexer.
They did find a way to reproduce is with the PS code below and some manual 
actions at the printer (see comment lines for intructions).
I tried to reproduce it on a upgraded 32 with 24Mb and on a 'normal'
Printserver 20 but without any luck.

We have seen a difference in messages on the frontpanel between the
customers printer and our 32-Plus. 
The Turbo 20-Plus displays the message 'Paused, press resume to continue' 
on the frontpanel while the second side of the duplex page still has to be
printed. The printer does complete this page but on our 32-Plus you first
see the message 'please wait' and after the duplex page is printed you
get 'Paused, press resume to continue'
 
It looks like this is a specific Turbo 20-Plus problem. Because we don't
have a Turbo 20-Plus I would ask if someone with such a printer could do the
test for me.

Software version on all printers is V5.1.

Regards,

Henk Bark
Digital Software Support Holland.

%!PS
%
% TESTFILE see lines marked with TEST
% TEST % The printer has duplexmode enabled for default.
% dummy flagpage
statusdict begin false setduplexmode end
/Helvetica findfont 12 scalefont setfont
100 100 moveto (Dummy flagpage) show
showpage % end dummy flagpage
statusdict begin true setduplexmode end
% Dummy document
100 100 moveto 
(kantje 1 ) show 
showpage
% TEST % now during printing of the first side of this page
% TEST % (the rearside in fact) we  press PAUSE
% TEST % we notify that the printer already puts
% TEST % 'Paused, press resume to continue' in the frontpanel display,
% TEST % while the printer is still starting printing the second side.
%
100 100 moveto
(kantje 2 ) show
showpage
% TEST % We wait until the complete sheet has been printed and landed in the
% TEST % output tray
%
% NEXT JOB (fake)
% dummy flagpage
% TEST % The frontpanel still says: 'Paused, pres resume to continue'
% TEST % now we open and close the frontcover and press continue as soon
% TEST % as the display shows 'Paused etc' again
statusdict begin false setduplexmode end
/Helvetica findfont 12 scalefont setfont
100 100 moveto (Dummy flagpage) show
showpage % end dummy flagpage
statusdict begin true setduplexmode end
% TEST % now this 'flagpage' will print but land in the duplexer. 
% TEST % printer says: processing
% TEST % lprc status reads: 'Waiting for document completion'
% TEST % now we open and close the duplexer. Printer detects a jam and 
% TEST % continues with reprinting this 'flagpage' Further operation normal.
% Dummy document
100 100 moveto 
(kantje 1 ) show 
showpage
% now during printing of the first side of this page (the rearside in fact)
% we  press PAUSE
% we notify that the printer already puts 'Paused, press continue to resume'
% in the frontpanel display, while the printer is still printing the 
% second side.
%
100 100 moveto
(kantje 2 ) show
showpage  % END TEST JOB

    This sounds like a known problem on which we re working in conjunction
    with Adobe Systems Inc. There is currentlyn no known workaround.
    
        jeff

Jeff,

Thanks for your reply.

What the customer also sees is that the printer sometimes 'hangs' with a
'Waiting for document completion' message on the frontpanel with no page
in the duplexer.
Opening and closing the duplexer door triggers the printer to continue
and a blank page is ejected.
Customer thinks that this situation can occur when someone for example
pushes the 'Supplies needed' button on the front panel during a print job.
He is not able the reproduce this very well.

Is this also part of the same problem or is this something else?

I was planing to escalate these problems.

Regards,

Henk.