AR-C170 (serv.man31). Printer controller section - Sharp Copying Equipment Service Manual (repair manual). Page 17

AR-C170M  PRINTER CONTROLLER SECTION  14 - 17

Code

Function (Purpose)

Purpose

Remarks

Main

Sub

26

54

Used to set enable/disable of auto color 
calibration for the printer.

Setting

Selection of the adjustment with SIM 67-24 and the 
conventional user color balance adjustment (key 
operation). (0 = conventional user color balance 
adjustment, 1 = adjustment with SIM 67-24)
Only in the adjustment with SIM 67-24, the printer 
half-tone process control is enabled.
This function is used to select the user color balance 
adjustment (key operation) when the user wants to 
adjust manually by himself.

44

1

Used to set enable/disable of correction 
operations in the image forming (process) 
section.

Setting

HT (PRT) ON/OFF: Set to OFF when the printer half-
tone process control operation is abnormal. (Default 
setting: ON)
MD (PRT_BK) ON/OFF: Set to OFF to improve 
gradation of the printer monochrome mode when the 
life of the photoconductor is nearly expired. (Default 
setting: ON)

67

1

Used to check the operations of printer 
DRAM read/write.

Operation test/check

11

Used to set the printer parallel I/F SELECT 
IN signal.

Setting

14

Used to perform version up of the firmware. 
(Printer)

Version up

17

Used to clear NVRAM. (Printer)

Data clear

18

Used to clear the Flash data. (Printer)

Data clear

24

Used to adjust half-tone density of the 
printer engine automatically.

Adjustment

When this function is executed:
When installing (including the AR-P16N/PK4), when 
replacing consumable parts (Drum cartridge, TN 
cartridge, transfer belt), when changing to "1" with 
SIM 26-54, when the screen is switched with SIM 67-
29, or when there is a great change in color.

∗

Execute after the automatic adjustment (SIM 46-
24) of copy. 

25

Printer engine color balance manual 
correction: PG print

Adjustment

Used to perform a fine adjustment of color from the 
adjustment of SIM 67-24. 

26

Used to select the target value of the 
referenced scanner in the printer engine 
automatic density adjustment. 

Adjustment

The target  value set with SIM 67-24 and the gray 
balance can be adjusted.

27

Used to display and register the scanner 
target value (for servicing) of the printer 
engine automatic density adjustment. 

Adjustment

Conforms to the service button of SIM 67-24. (The 
serviceman can scan the target value.)

28

Used to reset the scanner target value (for 
servicing) in the printer engine automatic 
density adjustment to the standard value. 

Adjustment

Reset to the standard value of SIM67-27. (The value 
is reset to the factory setting.)

29

Used to set the printer screen mode.

Setting

Printer screen selection. When DEF is 0, it is the 
same as the conventional screen. When DEF is 1, it 
is an option screen with improved grainy. (However, 
the number of lines of the screen is reduced.)

40

Used to copy the scanner destination. 
(Flash writing)

Setting