B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
314/41, 101/43
B41J 2/355 (2006.01)
Patent
CA 1186943
THERMAL PRINTER EDGE COMPENSATION Abstract of the Disclosure A current-drive circuit (Fig. 1) is provided to drive each of forty electrodes 41. When selected, the circuit forces line 27 to a level of drive voltage Vdr minus a current-level reference voltage Vlev. A constant current is produced across resistor 25. Line 27 is connected through resistor 29a to line 27a, which is the same point in the current-drive circuit of the adjoining electrode 41a (Fig. 3) on one side of electrode 41. Line 27 is similarly connected through resistor 29b to line 27b, which is the same point in the current-drive circuit of the adjoining electrode 41b (Fig. 3) on the opposite side of electrode 41. Selection of the drive circuit also connects line 27 to the associated electrode 41. An unselected drive circuit for an adjoining electrode, such as the one connected to drive electrode 41a, has line 27a floating to the level dictated by Vdr through its resistor 25a, while its electrode 41 is disconnected. Current from the unselected circuit through resistor 29a adds to the current in electrode 41, thereby eliminating lightened-edge printing from current spreading.
440728
International Business Machines Corporation
Rosen Arnold
LandOfFree
Thermal printer edge compensation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermal printer edge compensation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal printer edge compensation will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1246657