Adjustment Standard; Preparation - Ricoh J-P3 Service Manual

TROUBLESHOOTING GUIDE

Adjustment Standard

The amount of color shift must be 150 µm or less. Some service programs (motor speed, registration, and magnification) can
decrease the size of color shifts. But, there is a limit.

Preparation

The Line Adjustment (SP5-993-002) cannot correct the color shift if the gap between the color lines is 1.4 mm or greater. In this
case, restore the factory settings in the following SPs and do the Line Adjustment. Then, follow the troubleshooting procedure if
required.
• Main-scan Registration
• Sub-scan Registration
• Main-scan Magnification
When you see a color shift, try the following procedure before adjusting a component or service program.
1. Print out the SMC sheets (SP5-990-002).
2. Do the Line Adjustment (SP5-993-002 or Menu > Maintenance > Color Regist. > Auto Adjust).
NOTE: Make sure that the result (SP5-993-007) is "010101." If not, see Model J-P2 Service Manual, section 4.1.3.
3. Print a 1-dot grid pattern using A3/11" x 17" paper. Refer to the following table for the detailed SP mode settings.
Mode
Normal, color, 600 dpi
Normal, color, 1200 dpi
Thick paper
NOTE: When making prints on thick paper from the by-pass tray, the type of paper should be selected in the User Program
mode. Any adjustment needs to be done by using the type of paper that the customer normally uses.
SP2-909-001 to 004
SP2-916-001 to 010
SP2-103-055 to 059
SP5-997 (Test Pattern) Setting
Tray
Pattern
selection
2 05
2 05
0 05
Color mode Resolution
Full Color 600x600
Full Color 1200x1200
Full Color 1200x1200
4-18
20 February 2004
Paper size
(By-pass)
—
—
A3 / 11x17