EPSON AcuLaser C1900/AcuLaser C900 Revision B
Product Description Control Panel 57
without replacing the toner. This process can not be executed during the 
occurrence of the operator call inside the printer, so that it is recommend to 
confirms the state or the Sleep state before this process is executed.
 Support Menu
This setting menu is displayed only when the support mode has been activated by 
a special operation when the power is turned on, and can be selected.
 HDD Format
Format the Hard Disk unit. This Item is displayed and execute only when the 
optional HDD unit is installed. “Formatting HDD” is displayed while 
executing the format. After finishing the format, the printer will execute the 
warm boot. During this procedure, all interfaces shall not be connected to the 
printer to avoid incorrect operations.
 Sleep Mode
In the model after AcuLaser C1900, the name is changed from Standby Mode 
to Sleep Mode. The name has been changed only in the name, and the 
function is the same as Standby Mode. Sleep Mode = Disable is added at the 
bottom of the setup menu of the status sheet only when this setting is set to 
Disable.
 Printer Adjust Menu
 Developer Duty
This function is almost same as the Density of monochrome laser printer. The 
amount of the adhesion of the toner is adjusted. The larger the value is, the 
thicker the density gets. Normally, the print density is controlled 
automatically. Use this function for the adjustment manually. This setting is 
applied to all colors. (Individual setting is not possible.)
 Normal, Thick, Trnsprnc, Envelope, Thick Back
Adjust the transfer voltage of each paper type. Normally, the transfer voltage 
is controlled automatically. Use this function for the adjustment manually. 
Thick Back is the transfer current adjustment for printing the back side of 
thick paper.
 Maintenance Menu
This setting menu is displayed and can be selected only when the maintenance 
mode has been activated by the hidden operation when the power is turned on. 
This setting is used for maintenance by service persons.
 Engine Status Sheet
Pressing the Enter button starts to print the Engine Status sheet. If data 
remains in the mode, a paper is ejected. Always make sure there is no engine-
related service call before entering the maintenance mode. Printing is 
performed with the RITech, Toner Save and Resolution settings when the 
printer starts; for other settings, the factory defaults are used. Even after 
printing, the User default environment (settings) does not change. When 
printing is underway, the LCD display blinks.
 Reset Fuser Counter
Reset the counter of the Fuser Unit consumption and count up the exchange 
counter. This must be done after the Fuser Unit is replaced with a new one. 
Pressing the Enter button triggers a warm boot of the printer.
 Fuser Temp.
To change the fusing temperature in case of the printing with a special media. 
The temperature setting can be changed to the standard value in 5°C/Step. 
Consider enough when this function is used because it is possible to rise the 
fuser temperature at 100 degree. Pressing the Enter button triggers a warm 
boot of the printer.
 Clear Error Log
Clear the Error Log List for printing the Engine Status sheet. (The Error Log 
contains the latest 20 logs.) Pressing the Enter button triggers a warm boot of 
the printer.
C H E C K
P O I N T
After FAT is initialized, “00H” is written in all data areas for 
models before AcuLaser C1900 but for models after AcuLaser 
C1900, only FAT is initialized. (HDD Format finished only a few 
seconds.)