UP-600, UP-700 (serv.man21). UP600-700 Printer Manual - Sharp ECR Service Manual (repair manual). Page 16

1. Adjusting the HEAD position

Whenever the THERMAL HEAD 

 is replaced with a new one,

adjust its position for the HEAD FRAME 

.

•

Procedure:

1) The screw hole for fixing the THERMAL HEAD 

 in the

HEAD FRAME 

 is made a slot as shown in the figure

below. First, align the screw hole in the THERMAL HEAD

 with the bottom area of the slot and temporarily secure

it with the SCREW 

.

2) Install the HEAD FRAME UNIT 

 on the HOUSING 

.

3) Adjust the HEAD position and make sure that heating

element of the HEAD 

 is most properly positioned, by

performing a printing test. Do not adjust the Head position
during printing; otherwise the HEAD might break down
due to friction.

<Procedure for adjusting HEAD position>

(1) Insert a flat-bladed screwdriver into the adjustment

hole C in the HEAD FRAME 

. Adjust the HEAD

upward little by little with the screwdriver until it
reaches the desired position, and secure it with the
SCREW 

 (tightening torque: 6.5 kgf-cm).

4) If there is a difference in darkness in print between the

receipt and journal, insert the angle A’s spacer into the
gap between the HEAD FRAME unit and the thermal
head as shown in the figure below.

2. Direction of H-SPRING 

Install the H-SPRINGs 

 so that the hooks point outward.

Fig. 7

3. HEAD cable

Install the 9-pin connector to the right end of the THERMAL
HEAD   and the 10-pin connector to the left end.
Use caution to make a good connection or a deformed connec-
tor  when connecting the THERMAL HEAD 

 and HEAD ca-

bles.

Fig. 8

4. Installing HEAD UP LEVER and H-SPRING ("J" side)

1)

2)

3)

Fig. 9

HEAD FRAME unit

The number of pins on the
PWB unit:10P

The number of pins on the
PWB unit:9P

H-SPRING ("J" side)