Toshiba ES 455 Upper drawer issue

[Amincopy]

the upper drawer is set A5-R and i use it several months. i changed values of 448 (Paper aligning amount adjustment at the registration section (PFP Upper drawer/ Plain paper)) and 450 (Paper aligning amount adjustment at the registration section (Upper drawer/ Plain paper)) codes (05 mode-adjustment) because of it does not print from top of paper (5mm) . now it prints skewed and paper jam after two or three prints. i could not remember what were the values and i changed several times. sometime it prints 6 papers without issue sometime it paper jam @ exit after one print. other drawers works fine.

[toshibaestudio]

Did u check the feeder unit rollers? Feeder unit?

Frankly speaking, I never change below 05 codes...
05-448 Default value for short size is 16
05-450 Default value for short size is 20

[blackcat4866]

There's a bulletin that offers modified loop values that seem to work better than the defaults found in the manual. (You did look in the manual, yes?) The document I have does not have values for cassette1, but it does for the others.

There plenty of other causes for paper skew:
Flattened separation roller
Broken front door strap
Warped lower separation guide
Incorrectly installed transfer roller

You probably know that the shortest acceptable paper length is 210mm, so your A5-R must be fed -R, not as A5. Otherwise it will stall between the rollers.