Feed adjustment while image printing

Feed adjustment while image printing

  Figure 1 shows the flow of this disclosure. The printer microcode takes the logical 'OR' of the image of printing horizontally when the print data is an image command. Then the printer microcode searches the vertical discontinuity of the image from the logical 'OR' and saves the result. The printer microcode increase or reduce the length of a line feed if there is a blank vertically and the adjustment of feed is required. If the image is separated into two parts by a vertical discontinuity, and the adjustment of feed is required, the printer microcode divides the image into two (upper and lower) parts. The printer prints the upper part, adjusts the feed, then prints the lower part.

1

Insertion of a form

Receive  Transaction data

Feed value >

Print pitch?

N

 Check previous  Lower blank and Current upper blank

Create Print

Image

Y

Add adjust value to  Feed value

Y

Adjustable?

Create OR 

Image

Adjust Feed 

(feed paper)

 Search Upper, Middle and Lower

Blank space

N

Feed value =

Print pitch?

Adjustable ?

N

N

Check next  paper position

Y

Y

Feed Adjust

required?

Eject ?

Y

Check middle 

Blank space

N

Print line

Y

Print upper part

Feed paper

Adjust Feed (feed paper)

N

Print lower part

Eject paper

end

2

Figure 1. Flow of the adjustment of the feed value while p...