Riso HC Series Operating instructions

RISO KAGAKU CORPORATION
Overseas Technical Department
12 February 2008
Rev. 1.6

Before maintenance
Step1) Separation of RIP from HC main unit.
1) Separate RIP should be done before start repairing
- Now you can turn off HC main SW anytime you want without unexpected errors during repairing.
2) Remove a Power control cable to stop completely.
Step2) Cover the floor or carpet.
1) Putting curing mat to prevent floor or carpet from ink.
Power control cable

Index
For HC Printer
Item 1 Paper is stained with ink
Item 2 Image deformation
Item 3 White Line (Cleaning method of Print Head)
Item 4 Printed image is deformed diagonally
Item 5 S04-307 Overflow
Item 6 No ink
Item 7 W99-315
Item 8 Paper jam
Item 9 S03-243 (Belt platen operation error)
Item 10 Disordered paper stacking at paper ejection area
Item 11 X02-210 (Paper jam at main paper transfer section)
Item 12 Duplex unit cannot set smoothly
Item 13 S01-204 (Transfer belt unit sensor error)
Item 14 TR: 0031 error message (S04-300)
Item 15 S99-018
䌾
021 , S99-066
䌾
069
Item 16 S98-320 (Head voltage error)
Item 17 R98-142 For HS2000 (Scanner memory error)
Others
Item 18 Efficient procedure for installing machines
Item 19 Initialization Procedure
Item 20 Check point in periodical maintenance
Image adjustment
Item 21 Temporary image adjustment method
HC Finisher maintenance
Item 22 Stapling papers which are aligned not properly
Item 23 X19-711, 712 (Finisher eject sensor ON jam)
Item 24 Paper Jam at Finisher Transfer Unit
IS700C controller
Item 25 Calibrating the touch panel display for IS700C
Item 26 SERVICE mode for HS2000 + IS700C
Item 27 Upgrading procedure of IS700C

Paper is stained with ink
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Item 1-1
Case Papers are stained with ink on the subsequent prints after Print Head cleaning action.
- Ink spill out to the transfer belt from Print Head, therefore the papers are stained.
- This trouble likely occurs after Print Head cleaning action.
- Misfire may occur instead of ink stain occasionally
Cause of the problem (1)
If the surface of SUS plate is dirty with remaining old ink, ink will spill out from Print Head along remaining ink.
Solutions
Remove remaining old ink on SUS plate manually with fresh ink.
Cause of the problem (2)
Maintenance parameter
- The compressed air in the Reservoir will be released at the end of Print Head cleaning action and to what extent this air
releasing is performed is affecting the ink meniscus of Print Head.
- You can change the air releasing level by SE mode 8.6.6 and there is a trade-off condition between the misfire and ink
spilling trouble.
Solutions
- Adjust the “CLEANING CONFIG” by SE mode 8.6.6 (HC5500)
- This parameter has the values of OFF(default), WEAK, NORMAL and HARD.(HC5500)
- When [ HARD ] is selected, the possibility of the ink spilling trouble will decrease but the possibility of misfire will increase.
Clean both Print Head and
SUS plate
Print Head
SUS plate
Print Head
SUS plate
Remaining Ink or scratch, scar If the surface of SUS plate is dirty with
remaining old ink, ink will spill out from Print
Head along remaining ink.
Ink

Print Head condition after cleaning
- If you adjust the parameter with HC5000, please refer to a following chart.
8-6-6 OFF(default) WEAK NORMAL HARD
8-6-6-5 50ms 150ms 250ms 350ms
8-6-6-9 50ms 50ms 100ms 100ms
Cause of the problem (3)
There is a problem in the Reservoir.
- Solenoid valve of Reservoir cannot work properly and cannot release compressed air in the Reservoir during Print Head
cleaning operation, it causes ink spilling out from Print Head.
Solutions
- Replace the Ink Reservoir.
HC5500 Ver2.00 or later
HC5000 Ver2.05 or later
Clear There are some ink drips; they
becoming bigger.
30sec later
Print Head Print Head
No problem Adjustment is required
After adjusting the parameter
If there are many ink drips on the Print Head even if
change parameter to “HARD”, it is necessary to replace
ink reservoir or to clean up the Print Head again.
Reference

Cause of the problem (4)
There is a problem in the Print Head.
- If there are some scratches on coating of surface of Print Head, ink will stick there after Print Head cleaning action and ink
will spill out from Print Head.
Solutions
- Replace the Print Head.
- You can not check this problem in field.
Cause of the problem (5)
There is a problem in the stopping position of maintenance unit.
- If the stopping position of maintenance unit is not proper during Print Head cleaning operation, Suction head cannot wipe
the surface of Print Head sufficiently.
- If there is a problem with the stopping position of maintenance unit, Ink might drop down from “Ink Pan” because the
“Suction Head” touches “Ink Pan”.
Solutions
- Repair the deformed unit or replace the unit.
Print Head
Suction Head
Straight!
㩷
Suction
Head
Ink Pan
Ink Touch!

Edgeofpaperisstainedwithink Item1-2
Case Edge of paper is stained with ink.
Cause of the problem (1)
Due to curled paper or waved paper, edge of paper is stained.
- If curled paper or waved paper is used for printing, the paper will touch the surface of Print Head slightly and the leading
edge of the paper will be stained with ink.
- In worse condition, the error X02-223 [Paper lift detection] will occur.
Solutions
- Change papers with non-curled and non-waved papers if possible.
- Change the paper feeding direction if the paper size is small or than A4. (Short edge paper feeding -> long edge paper
feeding)
- Use the paper feeding from Multi-Tray Paper Feed Tray to avoid influence of the outside air. And putting “silica gel” is
effective for fumidity.
- Remedy of paper curl.
A4 size, B5 size
Long edge paper feeding (better)
Short edge paper feeding㩷
Ink stain
Curl of paper Wave of paper
Recycle paper waves easily in humid condition.
Mated paper curls easily in dry condition.

Cause of the problem (2)
The gap between Print Head and the transfer belt is too far.
- Ink mist, a minute particle of ink, may be sometimes generated from Print Head during printing.
- Such ink mist drifts in the air and comes toward the transfer belt.
- Most of them reach to the paper on the transfer belt so it is a problem.
- But if the gap between Print Head and the transfer belt is too far, misting ink may reach to the transfer belt and it can be
misting a cause of the problem.
- As a result, the surface of the transfer belt becomes dirty with ink and the edge of paper gets stained with ink.
- If the margin around the printing paper is reduced by menu 4.10 [Print Area], this problem occurs easily.
The gap is small (Normal)
The gap is big
Solutions
- Adjust the gap by SE mode 5.9.1.32 for HC5000. (It is possible to widen with 0.1mm step)
- The gap is alternated automatically by the paper type. If you print normal paper with envelope setting, the gap becomes
too big.(HC5500)
- Adjust print area(margin) by menu 4.10.(HC5000, HC5500)
<Tips>
- Default margin of normal paper by menu 4.10 is 5mm.(HC5000, HC5500)
- Maximum margin of normal paper by menu 4.10 is 1mm.(HC5000, HC5500)
- Default margin of envelope by menu 4.10 is 10mm.(HC5500) HC5000 cannot print with envelope.
Print Head Print Head Print Head
Transfer Belt
Paper
Ink
Print Head Print Head Print Head
Transfer Belt
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Ink
Ink mist

Center area of paper is stained with ink Item 1-3
Case The center of a paper is stained with ink for the duplex printing.
Cause of the problem
The center portion of the switchback roller is dirty with ink.
Solutions
- Wipe off ink from the center portion of the switchback roller.
- The switchback roller needs to be cleaned every 300,000 sheets printing.
Switchback roller (metal roller)
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Print direction