Errors my printer is showing some error like code sum 60d6d0

Your printer would need a reset and/or repair
http://www.hiti.com/english/Support/FAQ_Detail.asp?lid=&FaqId=279&skey=
hope all electrical outlets and other devices connected to the HiTi are grounded well and you eliminate any static discharge when using the printer.

This seems a common error across a wide range of Sharp printers/copiers. It means
PCU PWB EEPROM CHECK SUM ERROR
See the following two links (for example)
Thread U2 91 on MX 5000N and SHARP MX M363N ERROR CODES Trouble Codes
If haven't got manuals or other documents which may contain helpful information they can be downloaded here. This link also contains contact information for sharp so that you might get support
MX M354N MXM354N Digital Copier Printer Sharp

6.November.2015

The 5010 error indicates a scanner error. The scanner unit cannot detect the home position, or the scanner unit warming-up is not done properly at power-on. On the LCD, "Scanner is not operating correctly." is displayed.
The 6100 error indicates a logic board error. The check sum value is incorrect in the ROM check at hard-power-on.
Fixing these errors is more expensive than replacing the printer. Sorry.
Fixing F

That service code refers to the flash dimm, which is on the main pwb assy (controller). You have to try upgrading the system firmware. If the upgrade procedure fails, then you have to replace the flash dimm.

FFF code - Control error, failed EEPROM

The main control operates a series of software commands, which control the various features and functions of the oven. Each function or operation has a numerical value assigned to it. The numerical values can be added up - this is called the check sum operation. Every time the system is powered up and after each clean cycle the system performs a check sum and compares the value to the value programmed into the software (stored in memory).

An EEPROM check sum error or FFF code occurs when the values differ. If this happens, replace the oven control board (also called clock or ERC).

Replace the oven control board (also called clock or ERC).

Hope this helps.

U2 04 EEPROM serial communication error
11 Counter check sum error
12 Adjustment value check sum error (EEPROM)
40 CRUM communication error

this the U2 Code Error

1.EEPROM read/write error (serial communication error)
2.counter check sum error (EEPROM)
3.adjustment value check sum error (EEPROM)
4.CRUM chip communication error

U2 00 EPROM error 11 EPROM error





U2 04 EEPROM serial communication error 11 counter check sum error 12 adjustment value check sum error(EEPROM) 40 CRUM communication error

U2 04 EPROM error 11 Main counter error 12 EPROM error

U2 04 EEPROM serial communication error 11 counter check sum error 12 adjustment value check sum error(EEPROM) 40 CRUM communication errorYou need the service help. It is no a distans work Good luck)

U2 is a problem in the laser unit, if after resetting it is still showing then you need to get it replaced.

To find out the sub code for the U2 error hold down the Start key. Below is a list of the errors:
U2-04 EEPROM serial communication error
U2-11 Counter check sum error
U2-12 Adjustment value check sum error (EEPROM)
U2-40 CRUM communication error

To clear the U2-40 error try pulling out the toner cartridge and firmly reinstalling it. If that doesn't work you must install a new toner cartridge. There is a CRUM chip on the cartridge that keeps up with how many impressions have been made with that cardridge. You cannot "refill" these cartridges without replacing the CRUM. This problem occurs frequently with remanufactured cartridges.

To clear other U2 errors you must enter simulation mode.
Perform the following procedure to enter the simulation mode.
Clear key - Interrupt key - "0" key - Interrupt key - 16 - Start key - Start key. The unit should reset.